- 03 Dec, 2019 33 commits
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Peter Chen authored
BugLink: https://bugs.launchpad.net/bugs/1852335 [ Upstream commit 1a1c851b ] We meet several NULL pointer issues if configfs_composite_unbind and composite_setup (or composite_disconnect) are running together. These issues occur when do the function switch stress test, the configfs_compsoite_unbind is called from user mode by echo "" to /sys/../UDC entry, and meanwhile, the setup interrupt or disconnect interrupt occurs by hardware. The composite_setup will get the cdev from get_gadget_data, but configfs_composite_unbind will set gadget data as NULL, so the NULL pointer issue occurs. This concurrent is hard to reproduce by native kernel, but can be reproduced by android kernel. In this commit, we introduce one spinlock belongs to structure gadget_info since we can't use the same spinlock in usb_composite_dev due to exclusive running together between composite_setup and configfs_composite_unbind. And one bit flag 'unbind' to indicate the code is at unbind routine, this bit is needed due to we release the lock at during configfs_composite_unbind sometimes, and composite_setup may be run at that time. Several oops: oops 1: android_work: sent uevent USB_STATE=CONNECTED configfs-gadget gadget: super-speed config #1: b android_work: sent uevent USB_STATE=CONFIGURED init: Received control message 'start' for 'adbd' from pid: 3515 (system_server) Unable to handle kernel NULL pointer dereference at virtual address 0000002a init: Received control message 'stop' for 'adbd' from pid: 3375 (/vendor/bin/hw/android.hardware.usb@1.1-servic) Mem abort info: Exception class = DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000004 CM = 0, WnR = 0 user pgtable: 4k pages, 48-bit VAs, pgd = ffff8008f1b7f000 [000000000000002a] *pgd=0000000000000000 Internal error: Oops: 96000004 [#1] PREEMPT SMP Modules linked in: CPU: 4 PID: 2457 Comm: irq/125-5b11000 Not tainted 4.14.98-07846-g0b40a9b-dirty #16 Hardware name: Freescale i.MX8QM MEK (DT) task: ffff8008f2a98000 task.stack: ffff00000b7b8000 PC is at composite_setup+0x44/0x1508 LR is at android_setup+0xb8/0x13c pc : [<ffff0000089ffb3c>] lr : [<ffff000008a032fc>] pstate: 800001c5 sp : ffff00000b7bbb80 x29: ffff00000b7bbb80 x28: ffff8008f2a3c010 x27: 0000000000000001 x26: 0000000000000000 [1232/1897] audit: audit_lost=25791 audit_rate_limit=5 audit_backlog_limit=64 x25: 00000000ffffffa1 x24: ffff8008f2a3c010 audit: rate limit exceeded x23: 0000000000000409 x22: ffff000009c8e000 x21: ffff8008f7a8b428 x20: ffff00000afae000 x19: ffff0000089ff000 x18: 0000000000000000 x17: 0000000000000000 x16: ffff0000082b7c9c x15: 0000000000000000 x14: f1866f5b952aca46 x13: e35502e30d44349c x12: 0000000000000008 x11: 0000000000000008 x10: 0000000000000a30 x9 : ffff00000b7bbd00 x8 : ffff8008f2a98a90 x7 : ffff8008f27a9c90 x6 : 0000000000000001 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff0000089ff8d0 x0 : 732a010310b9ed00 X7: 0xffff8008f27a9c10: 9c10 00000002 00000000 00000001 00000000 13110000 ffff0000 00000002 00208040 9c30 00000000 00000000 00000000 00000000 00000000 00000005 00000029 00000000 9c50 00051778 00000001 f27a8e00 ffff8008 00000005 00000000 00000078 00000078 9c70 00000078 00000000 09031d48 ffff0000 00100000 00000000 00400000 00000000 9c90 00000001 00000000 00000000 00000000 00000000 00000000 ffefb1a0 ffff8008 9cb0 f27a9ca8 ffff8008 00000000 00000000 b9d88037 00000173 1618a3eb 00000001 9cd0 870a792a 0000002e 16188fe6 00000001 0000242b 00000000 00000000 00000000 using random self ethernet address 9cf0 019a4646 00000000 000547f3 00000000 ecfd6c33 00000002 00000000 using random host ethernet address 00000000 X8: 0xffff8008f2a98a10: 8a10 00000000 00000000 f7788d00 ffff8008 00000001 00000000 00000000 00000000 8a30 eb218000 ffff8008 f2a98000 ffff8008 f2a98000 ffff8008 09885000 ffff0000 8a50 f34df480 ffff8008 00000000 00000000 f2a98648 ffff8008 09c8e000 ffff0000 8a70 fff2c800 ffff8008 09031d48 ffff0000 0b7bbd00 ffff0000 0b7bbd00 ffff0000 8a90 080861bc ffff0000 00000000 00000000 00000000 00000000 00000000 00000000 8ab0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 8ad0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 8af0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 X21: 0xffff8008f7a8b3a8: b3a8 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 b3c8 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 b3e8 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 b408 00000000 00000000 00000000 00000000 00000000 00000000 00000001 00000000 b428 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 b448 0053004d 00540046 00300031 00010030 eb07b520 ffff8008 20011201 00000003 b468 e418d109 0104404e 00010302 00000000 eb07b558 ffff8008 eb07b558 ffff8008 b488 f7a8b488 ffff8008 f7a8b488 ffff8008 f7a8b300 ffff8008 00000000 00000000 X24: 0xffff8008f2a3bf90: bf90 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bfb0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bfd0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bff0 00000000 00000000 00000000 00000000 f76c8010 ffff8008 f76c8010 ffff8008 c010 00000000 00000000 f2a3c018 ffff8008 f2a3c018 ffff8008 08a067dc ffff0000 c030 f2a5a000 ffff8008 091c3650 ffff0000 f716fd18 ffff8008 f716fe30 ffff8008 c050 f2ce4a30 ffff8008 00000000 00000005 00000000 00000000 095d1568 ffff0000 c070 f76c8010 ffff8008 f2ce4b00 ffff8008 095cac68 ffff0000 f2a5a028 ffff8008 X28: 0xffff8008f2a3bf90: bf90 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bfb0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bfd0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bff0 00000000 00000000 00000000 00000000 f76c8010 ffff8008 f76c8010 ffff8008 c010 00000000 00000000 f2a3c018 ffff8008 f2a3c018 ffff8008 08a067dc ffff0000 c030 f2a5a000 ffff8008 091c3650 ffff0000 f716fd18 ffff8008 f716fe30 ffff8008 c050 f2ce4a30 ffff8008 00000000 00000005 00000000 00000000 095d1568 ffff0000 c070 f76c8010 ffff8008 f2ce4b00 ffff8008 095cac68 ffff0000 f2a5a028 ffff8008 Process irq/125-5b11000 (pid: 2457, stack limit = 0xffff00000b7b8000) Call trace: Exception stack(0xffff00000b7bba40 to 0xffff00000b7bbb80) ba40: 732a010310b9ed00 ffff0000089ff8d0 0000000000000006 0000000000000000 ba60: 0000000000000001 0000000000000000 0000000000000001 ffff8008f27a9c90 ba80: ffff8008f2a98a90 ffff00000b7bbd00 0000000000000a30 0000000000000008 baa0: 0000000000000008 e35502e30d44349c f1866f5b952aca46 0000000000000000 bac0: ffff0000082b7c9c 0000000000000000 0000000000000000 ffff0000089ff000 bae0: ffff00000afae000 ffff8008f7a8b428 ffff000009c8e000 0000000000000409 bb00: ffff8008f2a3c010 00000000ffffffa1 0000000000000000 0000000000000001 bb20: ffff8008f2a3c010 ffff00000b7bbb80 ffff000008a032fc ffff00000b7bbb80 bb40: ffff0000089ffb3c 00000000800001c5 ffff00000b7bbb80 732a010310b9ed00 bb60: ffffffffffffffff ffff0000080f777c ffff00000b7bbb80 ffff0000089ffb3c [<ffff0000089ffb3c>] composite_setup+0x44/0x1508 [<ffff000008a032fc>] android_setup+0xb8/0x13c [<ffff0000089bd9a8>] cdns3_ep0_delegate_req+0x44/0x70 [<ffff0000089bdff4>] cdns3_check_ep0_interrupt_proceed+0x33c/0x654 [<ffff0000089bca44>] cdns3_device_thread_irq_handler+0x4b0/0x4bc [<ffff0000089b77b4>] cdns3_thread_irq+0x48/0x68 [<ffff000008145bf0>] irq_thread_fn+0x28/0x88 [<ffff000008145e38>] irq_thread+0x13c/0x228 [<ffff0000080fed70>] kthread+0x104/0x130 [<ffff000008085064>] ret_from_fork+0x10/0x18 oops2: composite_disconnect: Calling disconnect on a Gadget that is not connected android_work: did not send uevent (0 0 (null)) init: Received control message 'stop' for 'adbd' from pid: 3359 (/vendor/bin/hw/android.hardware.usb@1.1-service.imx) init: Sending signal 9 to service 'adbd' (pid 22343) process group... ------------[ cut here ]------------ audit: audit_lost=180038 audit_rate_limit=5 audit_backlog_limit=64 audit: rate limit exceeded WARNING: CPU: 0 PID: 3468 at kernel_imx/drivers/usb/gadget/composite.c:2009 composite_disconnect+0x80/0x88 Modules linked in: CPU: 0 PID: 3468 Comm: HWC-UEvent-Thre Not tainted 4.14.98-07846-g0b40a9b-dirty #16 Hardware name: Freescale i.MX8QM MEK (DT) task: ffff8008f2349c00 task.stack: ffff00000b0a8000 PC is at composite_disconnect+0x80/0x88 LR is at composite_disconnect+0x80/0x88 pc : [<ffff0000089ff9b0>] lr : [<ffff0000089ff9b0>] pstate: 600001c5 sp : ffff000008003dd0 x29: ffff000008003dd0 x28: ffff8008f2349c00 x27: ffff000009885018 x26: ffff000008004000 Timeout for IPC response! x25: ffff000009885018 x24: ffff000009c8e280 x23: ffff8008f2d98010 x22: 00000000000001c0 x21: ffff8008f2d98394 x20: ffff8008f2d98010 x19: 0000000000000000 x18: 0000e3956f4f075a fxos8700 4-001e: i2c block read acc failed x17: 0000e395735727e8 x16: ffff00000829f4d4 x15: ffffffffffffffff x14: 7463656e6e6f6320 x13: 746f6e2009090920 x12: 7369207461687420 x11: 7465676461472061 x10: 206e6f207463656e x9 : 6e6f637369642067 x8 : ffff000009c8e280 x7 : ffff0000086ca6cc x6 : ffff000009f15e78 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffffffffffffffff x2 : c3f28b86000c3900 x1 : c3f28b86000c3900 x0 : 000000000000004e X20: 0xffff8008f2d97f90: 7f90 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 7fb0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 libprocessgroup: Failed to kill process cgroup uid 0 pid 22343 in 215ms, 1 processes remain 7fd0 Timeout for IPC response! 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 using random self ethernet address 7ff0 00000000 00000000 00000000 00000000 f76c8010 ffff8008 f76c8010 ffff8008 8010 00000100 00000000 f2d98018 ffff8008 f2d98018 ffff8008 08a067dc using random host ethernet address ffff0000 8030 f206d800 ffff8008 091c3650 ffff0000 f7957b18 ffff8008 f7957730 ffff8008 8050 f716a630 ffff8008 00000000 00000005 00000000 00000000 095d1568 ffff0000 8070 f76c8010 ffff8008 f716a800 ffff8008 095cac68 ffff0000 f206d828 ffff8008 X21: 0xffff8008f2d98314: 8314 ffff8008 00000000 00000000 00000000 00000000 00000000 00000000 00000000 8334 00000000 00000000 00000000 00000000 00000000 08a04cf4 ffff0000 00000000 8354 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 8374 00000000 00000000 00000000 00001001 00000000 00000000 00000000 00000000 8394 e4bbe4bb 0f230000 ffff0000 0afae000 ffff0000 ae001000 00000000 f206d400 Timeout for IPC response! 83b4 ffff8008 00000000 00000000 f7957b18 ffff8008 f7957718 ffff8008 f7957018 83d4 ffff8008 f7957118 ffff8008 f7957618 ffff8008 f7957818 ffff8008 f7957918 83f4 ffff8008 f7957d18 ffff8008 00000000 00000000 00000000 00000000 00000000 X23: 0xffff8008f2d97f90: 7f90 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 7fb0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 7fd0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 7ff0 00000000 00000000 00000000 00000000 f76c8010 ffff8008 f76c8010 ffff8008 8010 00000100 00000000 f2d98018 ffff8008 f2d98018 ffff8008 08a067dc ffff0000 8030 f206d800 ffff8008 091c3650 ffff0000 f7957b18 ffff8008 f7957730 ffff8008 8050 f716a630 ffff8008 00000000 00000005 00000000 00000000 095d1568 ffff0000 8070 f76c8010 ffff8008 f716a800 ffff8008 095cac68 ffff0000 f206d828 ffff8008 X28: 0xffff8008f2349b80: 9b80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9ba0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9bc0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9be0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9c00 00000022 00000000 ffffffff ffffffff 00010001 00000000 00000000 00000000 9c20 0b0a8000 ffff0000 00000002 00404040 00000000 00000000 00000000 00000000 9c40 00000001 00000000 00000001 00000000 001ebd44 00000001 f390b800 ffff8008 9c60 00000000 00000001 00000070 00000070 00000070 00000000 09031d48 ffff0000 Call trace: Exception stack(0xffff000008003c90 to 0xffff000008003dd0) 3c80: 000000000000004e c3f28b86000c3900 3ca0: c3f28b86000c3900 ffffffffffffffff 0000000000000000 0000000000000000 3cc0: ffff000009f15e78 ffff0000086ca6cc ffff000009c8e280 6e6f637369642067 3ce0: 206e6f207463656e 7465676461472061 7369207461687420 746f6e2009090920 3d00: 7463656e6e6f6320 ffffffffffffffff ffff00000829f4d4 0000e395735727e8 3d20: 0000e3956f4f075a 0000000000000000 ffff8008f2d98010 ffff8008f2d98394 3d40: 00000000000001c0 ffff8008f2d98010 ffff000009c8e280 ffff000009885018 3d60: ffff000008004000 ffff000009885018 ffff8008f2349c00 ffff000008003dd0 3d80: ffff0000089ff9b0 ffff000008003dd0 ffff0000089ff9b0 00000000600001c5 3da0: ffff8008f33f2cd8 0000000000000000 0000ffffffffffff 0000000000000000 init: Received control message 'start' for 'adbd' from pid: 3359 (/vendor/bin/hw/android.hardware.usb@1.1-service.imx) 3dc0: ffff000008003dd0 ffff0000089ff9b0 [<ffff0000089ff9b0>] composite_disconnect+0x80/0x88 [<ffff000008a044d4>] android_disconnect+0x3c/0x68 [<ffff0000089ba9f8>] cdns3_device_irq_handler+0xfc/0x2c8 [<ffff0000089b84c0>] cdns3_irq+0x44/0x94 [<ffff00000814494c>] __handle_irq_event_percpu+0x60/0x24c [<ffff000008144c0c>] handle_irq_event+0x58/0xc0 [<ffff00000814873c>] handle_fasteoi_irq+0x98/0x180 [<ffff000008143a10>] generic_handle_irq+0x24/0x38 [<ffff000008144170>] __handle_domain_irq+0x60/0xac [<ffff0000080819c4>] gic_handle_irq+0xd4/0x17c Signed-off-by:
Peter Chen <peter.chen@nxp.com> Signed-off-by:
Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by:
Sasha Levin <sashal@kernel.org> Signed-off-by:
Connor Kuehl <connor.kuehl@canonical.com> Signed-off-by:
Khalid Elmously <khalid.elmously@canonical.com>
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Chandana Kishori Chiluveru authored
BugLink: https://bugs.launchpad.net/bugs/1852335 [ Upstream commit 1c20c89b ] composite_dev_cleanup call from the failure of configfs_composite_bind frees up the cdev->os_desc_req and cdev->req. If the previous calls of bind and unbind is successful these will carry stale values. Consider the below sequence of function calls: configfs_composite_bind() composite_dev_prepare() - Allocate cdev->req, cdev->req->buf composite_os_desc_req_prepare() - Allocate cdev->os_desc_req, cdev->os_desc_req->buf configfs_composite_unbind() composite_dev_cleanup() - free the cdev->os_desc_req->buf and cdev->req->buf Next composition switch configfs_composite_bind() - If it fails goto err_comp_cleanup will call the composite_dev_cleanup() function composite_dev_cleanup() - calls kfree up with the stale values of cdev->req->buf and cdev->os_desc_req from the previous configfs_composite_bind call. The free call on these stale values leads to double free. Hence, Fix this issue by setting request and buffer pointer to NULL after kfree. Signed-off-by:
Chandana Kishori Chiluveru <cchiluve@codeaurora.org> Signed-off-by:
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Cristian Birsan authored
BugLink: https://bugs.launchpad.net/bugs/1852335 [ Upstream commit ba3a1a91 ] Fix interrupt storm generated by endpoints when working in FIFO mode. The TX_COMPLETE interrupt is used only by control endpoints processing. Do not enable it for other types of endpoints. Fixes: 914a3f3b ("USB: add atmel_usba_udc driver") Signed-off-by:
Cristian Birsan <cristian.birsan@microchip.com> Signed-off-by:
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Nikhil Badola authored
BugLink: https://bugs.launchpad.net/bugs/1852335 [ Upstream commit bc1e3a2d ] Check memory resource existence before releasing it to avoid NULL pointer dereference Signed-off-by:
Nikhil Badola <nikhil.badola@freescale.com> Reviewed-by:
Ran Wang <ran.wang_1@nxp.com> Reviewed-by:
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Taehee Yoo authored
BugLink: https://bugs.launchpad.net/bugs/1852335 [ Upstream commit 65de65d9 ] The IFF_BONDING means bonding master or bonding slave device. ->ndo_add_slave() sets IFF_BONDING flag and ->ndo_del_slave() unsets IFF_BONDING flag. bond0<--bond1 Both bond0 and bond1 are bonding device and these should keep having IFF_BONDING flag until they are removed. But bond1 would lose IFF_BONDING at ->ndo_del_slave() because that routine do not check whether the slave device is the bonding type or not. This patch adds the interface type check routine before removing IFF_BONDING flag. Test commands: ip link add bond0 type bond ip link add bond1 type bond ip link set bond1 master bond0 ip link set bond1 nomaster ip link del bond1 type bond ip link add bond1 type bond Splat looks like: [ 226.665555] proc_dir_entry 'bonding/bond1' already registered [ 226.666440] WARNING: CPU: 0 PID: 737 at fs/proc/generic.c:361 proc_register+0x2a9/0x3e0 [ 226.667571] Modules linked in: bonding af_packet sch_fq_codel ip_tables x_tables unix [ 226.668662] CPU: 0 PID: 737 Comm: ip Not tainted 5.4.0-rc3+ #96 [ 226.669508] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 226.670652] RIP: 0010:proc_register+0x2a9/0x3e0 [ 226.671612] Code: 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 39 01 00 00 48 8b 04 24 48 89 ea 48 c7 c7 a0 0b 14 9f 48 8b b0 e 0 00 00 00 e8 07 e7 88 ff <0f> 0b 48 c7 c7 40 2d a5 9f e8 59 d6 23 01 48 8b 4c 24 10 48 b8 00 [ 226.675007] RSP: 0018:ffff888050e17078 EFLAGS: 00010282 [ 226.675761] RAX: dffffc0000000008 RBX: ffff88805fdd0f10 RCX: ffffffff9dd344e2 [ 226.676757] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88806c9f6b8c [ 226.677751] RBP: ffff8880507160f3 R08: ffffed100d940019 R09: ffffed100d940019 [ 226.678761] R10: 0000000000000001 R11: ffffed100d940018 R12: ffff888050716008 [ 226.679757] R13: ffff8880507160f2 R14: dffffc0000000000 R15: ffffed100a0e2c1e [ 226.680758] FS: 00007fdc217cc0c0(0000) GS:ffff88806c800000(0000) knlGS:0000000000000000 [ 226.681886] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 226.682719] CR2: 00007f49313424d0 CR3: 0000000050e46001 CR4: 00000000000606f0 [ 226.683727] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 226.684725] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 226.685681] Call Trace: [ 226.687089] proc_create_seq_private+0xb3/0xf0 [ 226.687778] bond_create_proc_entry+0x1b3/0x3f0 [bonding] [ 226.691458] bond_netdev_event+0x433/0x970 [bonding] [ 226.692139] ? __module_text_address+0x13/0x140 [ 226.692779] notifier_call_chain+0x90/0x160 [ 226.693401] register_netdevice+0x9b3/0xd80 [ 226.694010] ? alloc_netdev_mqs+0x854/0xc10 [ 226.694629] ? netdev_change_features+0xa0/0xa0 [ 226.695278] ? rtnl_create_link+0x2ed/0xad0 [ 226.695849] bond_newlink+0x2a/0x60 [bonding] [ 226.696422] __rtnl_newlink+0xb9f/0x11b0 [ 226.696968] ? rtnl_link_unregister+0x220/0x220 [ ... ] Fixes: 0b680e75 ("[PATCH] bonding: Add priv_flag to avoid event mishandling") Signed-off-by:
Taehee Yoo <ap420073@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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Eric Dumazet authored
BugLink: https://bugs.launchpad.net/bugs/1852335 [ Upstream commit c24b75e0 ] syzbot reported the following issue : BUG: KCSAN: data-race in update_defense_level / update_defense_level read to 0xffffffff861a6260 of 4 bytes by task 3006 on cpu 1: update_defense_level+0x621/0xb30 net/netfilter/ipvs/ip_vs_ctl.c:177 defense_work_handler+0x3d/0xd0 net/netfilter/ipvs/ip_vs_ctl.c:225 process_one_work+0x3d4/0x890 kernel/workqueue.c:2269 worker_thread+0xa0/0x800 kernel/workqueue.c:2415 kthread+0x1d4/0x200 drivers/block/aoe/aoecmd.c:1253 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 write to 0xffffffff861a6260 of 4 bytes by task 7333 on cpu 0: update_defense_level+0xa62/0xb30 net/netfilter/ipvs/ip_vs_ctl.c:205 defense_work_handler+0x3d/0xd0 net/netfilter/ipvs/ip_vs_ctl.c:225 process_one_work+0x3d4/0x890 kernel/workqueue.c:2269 worker_thread+0xa0/0x800 kernel/workqueue.c:2415 kthread+0x1d4/0x200 drivers/block/aoe/aoecmd.c:1253 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 7333 Comm: kworker/0:5 Not tainted 5.4.0-rc3+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events defense_work_handler Indeed, old_secure_tcp is currently a static variable, while it needs to be a per netns variable. Fixes: a0840e2e ("IPVS: netns, ip_vs_ctl local vars moved to ipvs struct.") Signed-off-by:
Eric Dumazet <edumazet@google.com> Reported-by:
syzbot <syzkaller@googlegroups.com> Signed-off-by:
Simon Horman <horms@verge.net.au> Signed-off-by:
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Daniel Wagner authored
BugLink: https://bugs.launchpad.net/bugs/1852335 [ Upstream commit 0fd103cc ] The initial lpfc_desc_set_adisc implementation in commit dea3101e ("lpfc: add Emulex FC driver version 8.0.28") enabled ADISC if cfg_use_adisc && RSCN_MODE && FCP_2_DEVICE In commit 92d7f7b0 ("[SCSI] lpfc: NPIV: add NPIV support on top of SLI-3") this changed to (cfg_use_adisc && RSC_MODE) || FCP_2_DEVICE and later in commit ffc95493 ("[SCSI] lpfc 8.3.13: FC Discovery Fixes and enhancements.") to (cfg_use_adisc && RSC_MODE) || (FCP_2_DEVICE && FCP_TARGET) A customer reports that after a devloss, an ADISC failure is logged. It turns out the ADISC flag is set even the user explicitly set lpfc_use_adisc = 0. [Sat Dec 22 22:55:58 2018] lpfc 0000:82:00.0: 2:(0):0203 Devloss timeout on WWPN 50:01:43:80:12:8e:40:20 NPort x05df00 Data: x82000000 x8 xa [Sat Dec 22 23:08:20 2018] lpfc 0000:82:00.0: 2:(0):2755 ADISC failure DID:05DF00 Status:x9/x70000 [mkp: fixed Hannes' email] Fixes: 92d7f7b0 ("[SCSI] lpfc: NPIV: add NPIV support on top of SLI-3") Cc: Dick Kennedy <dick.kennedy@broadcom.com> Cc: James Smart <james.smart@broadcom.com> Link: https://lore.kernel.org/r/20191022072112.132268-1-dwagner@suse.deReviewed-by:
Hannes Reinecke <hare@suse.de> Reviewed-by:
James Smart <james.smart@broadcom.com> Signed-off-by:
Daniel Wagner <dwagner@suse.de> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
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Hannes Reinecke authored
BugLink: https://bugs.launchpad.net/bugs/1852335 [ Upstream commit 66cf50e6 ] DRIVER_ERROR is a a driver byte setting, not a host byte. The qla2xxx driver should rather return DID_ERROR here to be in line with the other drivers. Link: https://lore.kernel.org/r/20191018140458.108278-1-hare@suse.deSigned-off-by:
Hannes Reinecke <hare@suse.com> Acked-by:
Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
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Vidya Sagar authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit 7be142ca upstream. The PCI Tegra controller conversion to a device tree configurable driver in commit d1523b52 ("PCI: tegra: Move PCIe driver to drivers/pci/host") implied that code for the driver can be compiled in for a kernel supporting multiple platforms. Unfortunately, a blind move of the code did not check that some of the quirks that were applied in arch/arm (eg enabling Relaxed Ordering on all PCI devices - since the quirk hook erroneously matches PCI_ANY_ID for both Vendor-ID and Device-ID) are now applied in all kernels that compile the PCI Tegra controlled driver, DT and ACPI alike. This is completely wrong, in that enablement of Relaxed Ordering is only required by default in Tegra20 platforms as described in the Tegra20 Technical Reference Manual (available at https://developer.nvidia.com/embedded/downloads#?search=tegra%202 in Section 34.1, where it is mentioned that Relaxed Ordering bit needs to be enabled in its root ports to avoid deadlock in hardware) and in the Tegra30 platforms for the same reasons (unfortunately not documented in the TRM). There is no other strict requirement on PCI devices Relaxed Ordering enablement on any other Tegra platforms or PCI host bridge driver. Fix this quite upsetting situation by limiting the vendor and device IDs to which the Relaxed Ordering quirk applies to the root ports in question, reported above. Signed-off-by:
Vidya Sagar <vidyas@nvidia.com> [lorenzo.pieralisi@arm.com: completely rewrote the commit log/fixes tag] Signed-off-by:
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by:
Thierry Reding <treding@nvidia.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Al Viro authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit 351e5d86 upstream. Configfs abuses symlink(2). Unlike the normal filesystems, it wants the target resolved at symlink(2) time, like link(2) would've done. The problem is that ->symlink() is called with the parent directory locked exclusive, so resolving the target inside the ->symlink() is easily deadlocked. Short of really ugly games in sys_symlink() itself, all we can do is to unlock the parent before resolving the target and relock it after. However, that invalidates the checks done by the caller of ->symlink(), so we have to * check that dentry is still where it used to be (it couldn't have been moved, but it could've been unhashed) * recheck that it's still negative (somebody else might've successfully created a symlink with the same name while we were looking the target up) * recheck the permissions on the parent directory. Cc: stable@vger.kernel.org Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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Gustavo A. R. Silva authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit 7c92e5fb upstream. Add missing break statement to prevent the code for case USB_PORT_FEAT_C_RESET falling through to the default case. Addresses-Coverity-ID: 143155 Signed-off-by:
Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by:
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Johan Hovold authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit f7a1337f upstream. Fix a small slab info leak due to a failure to clear the command buffer at allocation. The first 16 bytes of the command buffer are always sent to the device in pcan_usb_send_cmd() even though only the first two may have been initialised in case no argument payload is provided (e.g. when waiting for a response). Fixes: bb478555 ("can: usb: PEAK-System Technik USB adapters driver core") Cc: stable <stable@vger.kernel.org> # 3.4 Reported-by: syzbot+863724e7128e14b26732@syzkaller.appspotmail.com Signed-off-by:
Johan Hovold <johan@kernel.org> Signed-off-by:
Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by:
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Navid Emamdoost authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit fb5be6a7 upstream. In gs_can_open() if usb_submit_urb() fails the allocated urb should be released. Fixes: d08e973a ("can: gs_usb: Added support for the GS_USB CAN devices") Cc: linux-stable <stable@vger.kernel.org> Signed-off-by:
Navid Emamdoost <navid.emamdoost@gmail.com> Signed-off-by:
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Stephane Grosjean authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit de280f40 upstream. When decoding a buffer received from PCAN-USB, the first timestamp read in a packet is a 16-bit coded time base, and the next ones are an 8-bit offset to this base, regardless of the type of packet read. This patch corrects a potential loss of synchronization by using a timestamp index read from the buffer, rather than an index of received data packets, to determine on the sizeof the timestamp to be read from the packet being decoded. Signed-off-by:
Stephane Grosjean <s.grosjean@peak-system.com> Fixes: 46be265d ("can: usb: PEAK-System Technik PCAN-USB specific part") Cc: linux-stable <stable@vger.kernel.org> Signed-off-by:
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Kurt Van Dijck authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit 3cb3eaac upstream. When the status register is read without the status IRQ pending, the chip may not raise the interrupt line for an upcoming status interrupt and the driver may miss a status interrupt. It is critical that the BUSOFF status interrupt is forwarded to the higher layers, since no more interrupts will follow without intervention. Thanks to Wolfgang and Joe for bringing up the first idea. Signed-off-by:
Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be> Cc: Wolfgang Grandegger <wg@grandegger.com> Cc: Joe Burmeister <joe.burmeister@devtank.co.uk> Fixes: fa39b54c ("can: c_can: Get rid of pointless interrupts") Cc: linux-stable <stable@vger.kernel.org> Signed-off-by:
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Johan Hovold authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit 37597394 upstream. The driver was accessing its driver data after having freed it. Fixes: 0024d8ad ("can: usb_8dev: Add support for USB2CAN interface from 8 devices") Cc: stable <stable@vger.kernel.org> # 3.9 Cc: Bernd Krumboeck <b.krumboeck@gmail.com> Cc: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by:
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Dan Carpenter authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit 30b7244d upstream. The copy_to_user() function returns the number of bytes remaining to be copied. In this code, that positive return is checked at the end of the function and we return zero/success. What we should do instead is return -EFAULT. Fixes: a7b4f989 ("netfilter: ipset: IP set core support") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Jozsef Kadlecsik <kadlec@netfilter.org> Signed-off-by:
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Lukas Wunner authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit 250367c5 upstream. Invoking the following commands on a 32-bit architecture with strict alignment requirements (such as an ARMv7-based Raspberry Pi) results in an alignment exception: # nft add table ip test-ip4 # nft add chain ip test-ip4 output { type filter hook output priority 0; } # nft add rule ip test-ip4 output quota 1025 bytes Alignment trap: not handling instruction e1b26f9f at [<7f4473f8>] Unhandled fault: alignment exception (0x001) at 0xb832e824 Internal error: : 1 [#1] PREEMPT SMP ARM Hardware name: BCM2835 [<7f4473fc>] (nft_quota_do_init [nft_quota]) [<7f447448>] (nft_quota_init [nft_quota]) [<7f4260d0>] (nf_tables_newrule [nf_tables]) [<7f4168dc>] (nfnetlink_rcv_batch [nfnetlink]) [<7f416bd0>] (nfnetlink_rcv [nfnetlink]) [<8078b334>] (netlink_unicast) [<8078b664>] (netlink_sendmsg) [<8071b47c>] (sock_sendmsg) [<8071bd18>] (___sys_sendmsg) [<8071ce3c>] (__sys_sendmsg) [<8071ce94>] (sys_sendmsg) The reason is that nft_quota_do_init() calls atomic64_set() on an atomic64_t which is only aligned to 32-bit, not 64-bit, because it succeeds struct nft_expr in memory which only contains a 32-bit pointer. Fix by aligning the nft_expr private data to 64-bit. Fixes: 96518518 ("netfilter: add nftables") Signed-off-by:
Lukas Wunner <lukas@wunner.de> Cc: stable@vger.kernel.org # v3.13+ Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by:
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Alexandru Ardelean authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit 24e1eb5c upstream. It could happen that either `val` or `val2` [provided from userspace] is negative. In that case the computed frequency could get a weird value. Fix this by checking that neither of the 2 variables is negative, and check that the computed result is not-zero. Fixes: e4f95939 ("iio: imu: adis16480 switch sampling frequency attr to core support") Signed-off-by:
Alexandru Ardelean <alexandru.ardelean@analog.com> Cc: <Stable@vger.kernel.org> Signed-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by:
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Luis Henriques authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit ea60ed6f upstream. KASAN reports a use-after-free when running xfstest generic/531, with the following trace: [ 293.903362] kasan_report+0xe/0x20 [ 293.903365] rb_erase+0x1f/0x790 [ 293.903370] __ceph_remove_cap+0x201/0x370 [ 293.903375] __ceph_remove_caps+0x4b/0x70 [ 293.903380] ceph_evict_inode+0x4e/0x360 [ 293.903386] evict+0x169/0x290 [ 293.903390] __dentry_kill+0x16f/0x250 [ 293.903394] dput+0x1c6/0x440 [ 293.903398] __fput+0x184/0x330 [ 293.903404] task_work_run+0xb9/0xe0 [ 293.903410] exit_to_usermode_loop+0xd3/0xe0 [ 293.903413] do_syscall_64+0x1a0/0x1c0 [ 293.903417] entry_SYSCALL_64_after_hwframe+0x44/0xa9 This happens because __ceph_remove_cap() may queue a cap release (__ceph_queue_cap_release) which can be scheduled before that cap is removed from the inode list with rb_erase(&cap->ci_node, &ci->i_caps); And, when this finally happens, the use-after-free will occur. This can be fixed by removing the cap from the inode list before being removed from the session list, and thus eliminating the risk of an UAF. Cc: stable@vger.kernel.org Signed-off-by:
Luis Henriques <lhenriques@suse.com> Reviewed-by:
Jeff Layton <jlayton@kernel.org> Signed-off-by:
Ilya Dryomov <idryomov@gmail.com> Signed-off-by:
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Alex Deucher authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit 2c409ba8 upstream. Need to set the dte flag on this asic. Port the fix from amdgpu: 5cb818b8 ("drm/amd/amdgpu: fix si_enable_smc_cac() failed issue") Reviewed-by:
Yong Zhao <yong.zhao@amd.com> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by:
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Jiri Olsa authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit 722ddfde upstream. The final sort might get confused when the comparison is done over bigger numbers than int like for -s time. Check the following report for longer workloads: $ perf report -s time -F time,overhead --stdio Fix hist_entry__sort() to properly return int64_t and not possible cut int. Fixes: 043ca389 ("perf tools: Use hpp formats to sort final output") Signed-off-by:
Jiri Olsa <jolsa@kernel.org> Reviewed-by:
Andi Kleen <ak@linux.intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: stable@vger.kernel.org # v3.16+ Link: http://lore.kernel.org/lkml/20191104232711.16055-1-jolsa@kernel.orgSigned-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by:
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Kevin Hao authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit 5cbf2fff upstream. In the current code, we use the atomic_cmpxchg() to serialize the output of the dump_stack(), but this implementation suffers the thundering herd problem. We have observed such kind of livelock on a Marvell cn96xx board(24 cpus) when heavily using the dump_stack() in a kprobe handler. Actually we can let the competitors to wait for the releasing of the lock before jumping to atomic_cmpxchg(). This will definitely mitigate the thundering herd problem. Thanks Linus for the suggestion. [akpm@linux-foundation.org: fix comment] Link: http://lkml.kernel.org/r/20191030031637.6025-1-haokexin@gmail.com Fixes: b58d9774 ("dump_stack: serialize the output from dump_stack()") Signed-off-by:
Kevin Hao <haokexin@gmail.com> Suggested-by:
Linus Torvalds <torvalds@linux-foundation.org> Cc: <stable@vger.kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Michal Hocko authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit abaed011 upstream. /proc/pagetypeinfo is a debugging tool to examine internal page allocator state wrt to fragmentation. It is not very useful for any other use so normal users really do not need to read this file. Waiman Long has noticed that reading this file can have negative side effects because zone->lock is necessary for gathering data and that a) interferes with the page allocator and its users and b) can lead to hard lockups on large machines which have very long free_list. Reduce both issues by simply not exporting the file to regular users. Link: http://lkml.kernel.org/r/20191025072610.18526-2-mhocko@kernel.org Fixes: 467c996c ("Print out statistics in relation to fragmentation avoidance to /proc/pagetypeinfo") Signed-off-by:
Michal Hocko <mhocko@suse.com> Reported-by:
Waiman Long <longman@redhat.com> Acked-by:
Mel Gorman <mgorman@suse.de> Acked-by:
Vlastimil Babka <vbabka@suse.cz> Acked-by:
Rafael Aquini <aquini@redhat.com> Acked-by:
David Rientjes <rientjes@google.com> Reviewed-by:
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Takashi Iwai authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit 15c2b3cc upstream. The unsolicited event handler for the headphone jack on CA0132 codec driver tries to reschedule the another delayed work with cancel_delayed_work_sync(). It's no good idea, unfortunately, especially after we changed the work queue to the standard global one; this may lead to a stall because both works are using the same global queue. Fix it by dropping the _sync but does call cancel_delayed_work() instead. Fixes: 993884f6 ("ALSA: hda/ca0132 - Delay HP amp turnon.") BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1155836 Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20191105134316.19294-1-tiwai@suse.deSigned-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
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Takashi Sakamoto authored
BugLink: https://bugs.launchpad.net/bugs/1852335 commit 706ad674 upstream. For Focusrite Saffire Pro i/o, the lowest 8 bits of register represents configured source of sampling clock. The next lowest 8 bits represents whether the configured source is actually detected or not just after the register is changed for the source. Current implementation evaluates whole the register to detect configured source. This results in failure due to the next lowest 8 bits when the source is connected in advance. This commit fixes the bug. Fixes: 25784ec2 ("ALSA: bebob: Add support for Focusrite Saffire/SaffirePro series") Cc: <stable@vger.kernel.org> # v3.16+ Signed-off-by:
Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20191102150920.20367-1-o-takashi@sakamocchi.jpSigned-off-by:
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Pan Bian authored
BugLink: https://bugs.launchpad.net/bugs/1852335 [ Upstream commit 025ec40b ] The function nfc_put_device(dev) is called twice to drop the reference to dev when there is no associated local llcp. Remove one of them to fix the bug. Fixes: 52feb444 ("NFC: Extend netlink interface for LTO, RW, and MIUX parameters support") Fixes: d9b8d8e1 ("NFC: llcp: Service Name Lookup netlink interface") Signed-off-by:
Pan Bian <bianpan2016@163.com> Reviewed-by:
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Manish Chopra authored
BugLink: https://bugs.launchpad.net/bugs/1852335 [ Upstream commit deabc871 ] While rebooting the system with SR-IOV vfs enabled leads to below crash due to recurrence of __qede_remove() on the VF devices (first from .shutdown() flow of the VF itself and another from PF's .shutdown() flow executing pci_disable_sriov()) This patch adds a safeguard in __qede_remove() flow to fix this, so that driver doesn't attempt to remove "already removed" devices. [ 194.360134] BUG: unable to handle kernel NULL pointer dereference at 00000000000008dc [ 194.360227] IP: [<ffffffffc03553c4>] __qede_remove+0x24/0x130 [qede] [ 194.360304] PGD 0 [ 194.360325] Oops: 0000 [#1] SMP [ 194.360360] Modules linked in: tcp_lp fuse tun bridge stp llc devlink bonding ip_set nfnetlink ib_isert iscsi_target_mod ib_srpt target_core_mod ib_srp scsi_transport_srp scsi_tgt ib_ipoib ib_umad rpcrdma sunrpc rdma_ucm ib_uverbs ib_iser rdma_cm iw_cm ib_cm libiscsi scsi_transport_iscsi dell_smbios iTCO_wdt iTCO_vendor_support dell_wmi_descriptor dcdbas vfat fat pcc_cpufreq skx_edac intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm irqbypass crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd qedr ib_core pcspkr ses enclosure joydev ipmi_ssif sg i2c_i801 lpc_ich mei_me mei wmi ipmi_si ipmi_devintf ipmi_msghandler tpm_crb acpi_pad acpi_power_meter xfs libcrc32c sd_mod crc_t10dif crct10dif_generic crct10dif_pclmul crct10dif_common crc32c_intel mgag200 [ 194.361044] qede i2c_algo_bit drm_kms_helper qed syscopyarea sysfillrect nvme sysimgblt fb_sys_fops ttm nvme_core mpt3sas crc8 ptp drm pps_core ahci raid_class scsi_transport_sas libahci libata drm_panel_orientation_quirks nfit libnvdimm dm_mirror dm_region_hash dm_log dm_mod [last unloaded: ip_tables] [ 194.361297] CPU: 51 PID: 7996 Comm: reboot Kdump: loaded Not tainted 3.10.0-1062.el7.x86_64 #1 [ 194.361359] Hardware name: Dell Inc. PowerEdge MX840c/0740HW, BIOS 2.4.6 10/15/2019 [ 194.361412] task: ffff9cea9b360000 ti: ffff9ceabebdc000 task.ti: ffff9ceabebdc000 [ 194.361463] RIP: 0010:[<ffffffffc03553c4>] [<ffffffffc03553c4>] __qede_remove+0x24/0x130 [qede] [ 194.361534] RSP: 0018:ffff9ceabebdfac0 EFLAGS: 00010282 [ 194.361570] RAX: 0000000000000000 RBX: ffff9cd013846098 RCX: 0000000000000000 [ 194.361621] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff9cd013846098 [ 194.361668] RBP: ffff9ceabebdfae8 R08: 0000000000000000 R09: 0000000000000000 [ 194.361715] R10: 00000000bfe14201 R11: ffff9ceabfe141e0 R12: 0000000000000000 [ 194.361762] R13: ffff9cd013846098 R14: 0000000000000000 R15: ffff9ceab5e48000 [ 194.361810] FS: 00007f799c02d880(0000) GS:ffff9ceacb0c0000(0000) knlGS:0000000000000000 [ 194.361865] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 194.361903] CR2: 00000000000008dc CR3: 0000001bdac76000 CR4: 00000000007607e0 [ 194.361953] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 194.362002] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 194.362051] PKRU: 55555554 [ 194.362073] Call Trace: [ 194.362109] [<ffffffffc0355500>] qede_remove+0x10/0x20 [qede] [ 194.362180] [<ffffffffb97d0f3e>] pci_device_remove+0x3e/0xc0 [ 194.362240] [<ffffffffb98b3c52>] __device_release_driver+0x82/0xf0 [ 194.362285] [<ffffffffb98b3ce3>] device_release_driver+0x23/0x30 [ 194.362343] [<ffffffffb97c86d4>] pci_stop_bus_device+0x84/0xa0 [ 194.362388] [<ffffffffb97c87e2>] pci_stop_and_remove_bus_device+0x12/0x20 [ 194.362450] [<ffffffffb97f153f>] pci_iov_remove_virtfn+0xaf/0x160 [ 194.362496] [<ffffffffb97f1aec>] sriov_disable+0x3c/0xf0 [ 194.362534] [<ffffffffb97f1bc3>] pci_disable_sriov+0x23/0x30 [ 194.362599] [<ffffffffc02f83c3>] qed_sriov_disable+0x5e3/0x650 [qed] [ 194.362658] [<ffffffffb9622df6>] ? kfree+0x106/0x140 [ 194.362709] [<ffffffffc02cc0c0>] ? qed_free_stream_mem+0x70/0x90 [qed] [ 194.362754] [<ffffffffb9622df6>] ? kfree+0x106/0x140 [ 194.362803] [<ffffffffc02cd659>] qed_slowpath_stop+0x1a9/0x1d0 [qed] [ 194.362854] [<ffffffffc035544e>] __qede_remove+0xae/0x130 [qede] [ 194.362904] [<ffffffffc03554e0>] qede_shutdown+0x10/0x20 [qede] [ 194.362956] [<ffffffffb97cf90a>] pci_device_shutdown+0x3a/0x60 [ 194.363010] [<ffffffffb98b180b>] device_shutdown+0xfb/0x1f0 [ 194.363066] [<ffffffffb94b66c6>] kernel_restart_prepare+0x36/0x40 [ 194.363107] [<ffffffffb94b66e2>] kernel_restart+0x12/0x60 [ 194.363146] [<ffffffffb94b6959>] SYSC_reboot+0x229/0x260 [ 194.363196] [<ffffffffb95f200d>] ? handle_mm_fault+0x39d/0x9b0 [ 194.363253] [<ffffffffb942b621>] ? __switch_to+0x151/0x580 [ 194.363304] [<ffffffffb9b7ec28>] ? __schedule+0x448/0x9c0 [ 194.363343] [<ffffffffb94b69fe>] SyS_reboot+0xe/0x10 [ 194.363387] [<ffffffffb9b8bede>] system_call_fastpath+0x25/0x2a [ 194.363430] Code: f9 e9 37 ff ff ff 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 4c 8d af 98 00 00 00 41 54 4c 89 ef 41 89 f4 53 e8 4c e4 55 f9 <80> b8 dc 08 00 00 01 48 89 c3 4c 8d b8 c0 08 00 00 4c 8b b0 c0 [ 194.363712] RIP [<ffffffffc03553c4>] __qede_remove+0x24/0x130 [qede] [ 194.363764] RSP <ffff9ceabebdfac0> [ 194.363791] CR2: 00000000000008dc Signed-off-by:
Manish Chopra <manishc@marvell.com> Signed-off-by:
Ariel Elior <aelior@marvell.com> Signed-off-by:
Sudarsana Kalluru <skalluru@marvell.com> Signed-off-by:
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Pan Bian authored
BugLink: https://bugs.launchpad.net/bugs/1852335 [ Upstream commit 99a8efbb ] The variable nfcid_skb is not changed in the callee nfc_hci_get_param() if error occurs. Consequently, the freed variable nfcid_skb will be freed again, resulting in a double free bug. Set nfcid_skb to NULL after releasing it to fix the bug. Signed-off-by:
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Pan Bian authored
BugLink: https://bugs.launchpad.net/bugs/1852335 [ Upstream commit 517ce4e9 ] The address of fw_vsc_cfg is on stack. Releasing it with devm_kfree() is incorrect, which may result in a system crash or other security impacts. The expected object to free is *fw_vsc_cfg. Signed-off-by:
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Eric Dumazet authored
BugLink: https://bugs.launchpad.net/bugs/1852335 [ Upstream commit 1b53d644 ] KCSAN reported the following data-race [1] The fix will also prevent the compiler from optimizing out the condition. [1] BUG: KCSAN: data-race in neigh_resolve_output / neigh_resolve_output write to 0xffff8880a41dba78 of 8 bytes by interrupt on cpu 1: neigh_event_send include/net/neighbour.h:443 [inline] neigh_resolve_output+0x78/0x480 net/core/neighbour.c:1474 neigh_output include/net/neighbour.h:511 [inline] ip_finish_output2+0x4af/0xe40 net/ipv4/ip_output.c:228 __ip_finish_output net/ipv4/ip_output.c:308 [inline] __ip_finish_output+0x23a/0x490 net/ipv4/ip_output.c:290 ip_finish_output+0x41/0x160 net/ipv4/ip_output.c:318 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip_output+0xdf/0x210 net/ipv4/ip_output.c:432 dst_output include/net/dst.h:436 [inline] ip_local_out+0x74/0x90 net/ipv4/ip_output.c:125 __ip_queue_xmit+0x3a8/0xa40 net/ipv4/ip_output.c:532 ip_queue_xmit+0x45/0x60 include/net/ip.h:237 __tcp_transmit_skb+0xe81/0x1d60 net/ipv4/tcp_output.c:1169 tcp_transmit_skb net/ipv4/tcp_output.c:1185 [inline] __tcp_retransmit_skb+0x4bd/0x15f0 net/ipv4/tcp_output.c:2976 tcp_retransmit_skb+0x36/0x1a0 net/ipv4/tcp_output.c:2999 tcp_retransmit_timer+0x719/0x16d0 net/ipv4/tcp_timer.c:515 tcp_write_timer_handler+0x42d/0x510 net/ipv4/tcp_timer.c:598 tcp_write_timer+0xd1/0xf0 net/ipv4/tcp_timer.c:618 read to 0xffff8880a41dba78 of 8 bytes by interrupt on cpu 0: neigh_event_send include/net/neighbour.h:442 [inline] neigh_resolve_output+0x57/0x480 net/core/neighbour.c:1474 neigh_output include/net/neighbour.h:511 [inline] ip_finish_output2+0x4af/0xe40 net/ipv4/ip_output.c:228 __ip_finish_output net/ipv4/ip_output.c:308 [inline] __ip_finish_output+0x23a/0x490 net/ipv4/ip_output.c:290 ip_finish_output+0x41/0x160 net/ipv4/ip_output.c:318 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip_output+0xdf/0x210 net/ipv4/ip_output.c:432 dst_output include/net/dst.h:436 [inline] ip_local_out+0x74/0x90 net/ipv4/ip_output.c:125 __ip_queue_xmit+0x3a8/0xa40 net/ipv4/ip_output.c:532 ip_queue_xmit+0x45/0x60 include/net/ip.h:237 __tcp_transmit_skb+0xe81/0x1d60 net/ipv4/tcp_output.c:1169 tcp_transmit_skb net/ipv4/tcp_output.c:1185 [inline] __tcp_retransmit_skb+0x4bd/0x15f0 net/ipv4/tcp_output.c:2976 tcp_retransmit_skb+0x36/0x1a0 net/ipv4/tcp_output.c:2999 tcp_retransmit_timer+0x719/0x16d0 net/ipv4/tcp_timer.c:515 tcp_write_timer_handler+0x42d/0x510 net/ipv4/tcp_timer.c:598 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-rc3+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Signed-off-by:
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Oliver Neukum authored
BugLink: https://bugs.launchpad.net/bugs/1852335 [ Upstream commit 332f989a ] A malicious device may give half an answer when asked for its MTU. The driver will proceed after this with a garbage MTU. Anything but a complete answer must be treated as an error. V2: used sizeof as request by Alexander Reported-and-tested-by: syzbot+0631d878823ce2411636@syzkaller.appspotmail.com Signed-off-by:
Oliver Neukum <oneukum@suse.com> Signed-off-by:
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Kleber Sacilotto de Souza authored
Ignore: yes Signed-off-by:Kleber Sacilotto de Souza <kleber.souza@canonical.com>
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- 13 Nov, 2019 7 commits
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Connor Kuehl authored
Signed-off-by: -
Connor Kuehl authored
BugLink: https://bugs.launchpad.net/bugs/1852306 Properties: no-test-build Signed-off-by:
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Connor Kuehl authored
Ignore: yes Signed-off-by: -
Colin Ian King authored
BugLink: https://bugs.launchpad.net/bugs/1850175 There memset is indented incorrectly, remove the extraneous tabs. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
Kamal Mostafa <kamal@canonical.com> Acked-by:
Stefan Bader <stefan.bader@canonical.com> Acked-by:
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Sameeh Jubran authored
BugLink: https://bugs.launchpad.net/bugs/1850175 There is a race condition that can occur when calling ena_down(). The ena_clean_tx_irq() - which is a part of the napi handler - function might wake up the tx queue when the queue is supposed to be down (during recovery or changing the size of the queues for example) This causes the ena_start_xmit() function to trigger and possibly try to access the destroyed queues. The race is illustrated below: Flow A: Flow B(napi handler) ena_down() netif_carrier_off() netif_tx_disable() ena_clean_tx_irq() netif_tx_wake_queue() ena_napi_disable_all() ena_destroy_all_io_queues() After these flows the tx queue is active and ena_start_xmit() accesses the destroyed queue which leads to a kernel panic. fixes: 1738cd3e (net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)) Signed-off-by:
Sameeh Jubran <sameehj@amazon.com> Signed-off-by:
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Jakub Kicinski authored
BugLink: https://bugs.launchpad.net/bugs/1850175 This reverts commit 315c28d2 ("net: ena: ethtool: add extra properties retrieval via get_priv_flags"). As discussed at netconf and on the mailing list we can't allow for the the abuse of private flags for exposing arbitrary device labels. Signed-off-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by:
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Sameeh Jubran authored
BugLink: https://bugs.launchpad.net/bugs/1850175 The current code of create_queues_with_size_backoff() allows the ring size to become as small as ENA_MIN_RING_SIZE/2. This is a bug since we don't want the queue ring to be smaller than ENA_MIN_RING_SIZE In this commit we change the loop's termination condition to look at the queue size of the next iteration instead of that of the current one, so that the minimal queue size again becomes ENA_MIN_RING_SIZE. Fixes: eece4d2a ("net: ena: add ethtool function for changing io queue sizes") Signed-off-by:
Arthur Kiyanovski <akiyano@amazon.com> Signed-off-by:
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