- 15 Mar, 2020 40 commits
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Greg Kroah-Hartman authored
BugLink: https://bugs.launchpad.net/bugs/1864774Signed-off-by:
Khalid Elmously <khalid.elmously@canonical.com> Signed-off-by:
Kleber Sacilotto de Souza <kleber.souza@canonical.com>
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Josef Bacik authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit d55966c4 ] There was some logic added a while ago to clear out f_bavail in statfs() if we did not have enough free metadata space to satisfy our global reserve. This was incorrect at the time, however didn't really pose a problem for normal file systems because we would often allocate chunks if we got this low on free metadata space, and thus wouldn't really hit this case unless we were actually full. Fast forward to today and now we are much better about not allocating metadata chunks all of the time. Couple this with d792b0f1 ("btrfs: always reserve our entire size for the global reserve") which now means we'll easily have a larger global reserve than our free space, we are now more likely to trip over this while still having plenty of space. Fix this by skipping this logic if the global rsv's space_info is not full. space_info->full is 0 unless we've attempted to allocate a chunk for that space_info and that has failed. If this happens then the space for the global reserve is definitely sacred and we need to report b_avail == 0, but before then we can just use our calculated b_avail. Reported-by:
Martin Steigerwald <martin@lichtvoll.de> Fixes: ca8a51b3 ("btrfs: statfs: report zero available if metadata are exhausted") CC: stable@vger.kernel.org # 4.5+ Reviewed-by:
Qu Wenruo <wqu@suse.com> Tested-By:
Josef Bacik <josef@toxicpanda.com> Reviewed-by:
David Sterba <dsterba@suse.com> Signed-off-by:
Sasha Levin <sashal@kernel.org> Signed-off-by:
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Luis de Bethencourt authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit ae02d1bd ] Metadata for mixed block is already accounted in total data and should not be counted as part of the free metadata space. Signed-off-by:
Luis de Bethencourt <luisbg@osg.samsung.com> Link: https://bugzilla.kernel.org/show_bug.cgi?id=114281Signed-off-by:
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Praveen Chaudhary authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 189c9b1e ] skb->csum is updated incorrectly, when manipulation for NF_NAT_MANIP_SRC\DST is done on IPV6 packet. Fix: There is no need to update skb->csum in inet_proto_csum_replace16(), because update in two fields a.) IPv6 src/dst address and b.) L4 header checksum cancels each other for skb->csum calculation. Whereas inet_proto_csum_replace4 function needs to update skb->csum, because update in 3 fields a.) IPv4 src/dst address, b.) IPv4 Header checksum and c.) L4 header checksum results in same diff as L4 Header checksum for skb->csum calculation. [ pablo@netfilter.org: a few comestic documentation edits ] Signed-off-by:
Praveen Chaudhary <pchaudhary@linkedin.com> Signed-off-by:
Zhenggen Xu <zxu@linkedin.com> Signed-off-by:
Andy Stracner <astracner@linkedin.com> Reviewed-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by:
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Vasily Averin authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 66018a10 ] if seq_file .next fuction does not change position index, read after some lseek can generate unexpected output. https://bugzilla.kernel.org/show_bug.cgi?id=206283Signed-off-by:
Vasily Averin <vvs@virtuozzo.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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Vasily Averin authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 70a87287 ] if seq_file .next fuction does not change position index, read after some lseek can generate unexpected output. https://bugzilla.kernel.org/show_bug.cgi?id=206283Signed-off-by:
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Finn Thain authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 3f4b7e6a ] Make sure the SONIC's DMA engine is idle before altering the transmit and receive descriptors. Add a helper for this as it will be needed again. Fixes: 1da177e4 ("Linux-2.6.12-rc2") Tested-by:
Stan Johnson <userm57@yahoo.com> Signed-off-by:
Finn Thain <fthain@telegraphics.com.au> Signed-off-by:
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Finn Thain authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 9e311820 ] The SONIC can sometimes advance its rx buffer pointer (RRP register) without advancing its rx descriptor pointer (CRDA register). As a result the index of the current rx descriptor may not equal that of the current rx buffer. The driver mistakenly assumes that they are always equal. This assumption leads to incorrect packet lengths and possible packet duplication. Avoid this by calling a new function to locate the buffer corresponding to a given descriptor. Fixes: efcce839 ("[PATCH] macsonic/jazzsonic network drivers update") Tested-by:
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Finn Thain authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit e3885f57 ] The driver accesses descriptor memory which is simultaneously accessed by the chip, so the compiler must not be allowed to re-order CPU accesses. sonic_buf_get() used 'volatile' to prevent that. sonic_buf_put() should have done so too but was overlooked. Fixes: efcce839 ("[PATCH] macsonic/jazzsonic network drivers update") Tested-by:
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Finn Thain authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 865ad2f2 ] The netif_stop_queue() call in sonic_send_packet() races with the netif_wake_queue() call in sonic_interrupt(). This causes issues like "NETDEV WATCHDOG: eth0 (macsonic): transmit queue 0 timed out". Fix this by disabling interrupts when accessing tx_skb[] and next_tx. Update a comment to clarify the synchronization properties. Fixes: efcce839 ("[PATCH] macsonic/jazzsonic network drivers update") Tested-by:
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Madalin Bucur authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 1d3ca681 ] When fsl,erratum-a011043 is set, adjust for erratum A011043: MDIO reads to internal PCS registers may result in having the MDIO_CFG[MDIO_RD_ER] bit set, even when there is no error and read data (MDIO_DATA[MDIO_DATA]) is correct. Software may get false read error when reading internal PCS registers through MDIO. As a workaround, all internal MDIO accesses should ignore the MDIO_CFG[MDIO_RD_ER] bit. Signed-off-by:
Madalin Bucur <madalin.bucur@oss.nxp.com> Signed-off-by:
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Manish Chopra authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 22e98449 ] Driver while collecting firmware dump takes longer time to collect/process some of the firmware dump entries/memories. Bigger capture masks makes it worse as it results in larger amount of data being collected and results in CPU soft lockup. Place cond_resched() in some of the driver flows that are expectedly time consuming to relinquish the CPU to avoid CPU soft lockup panic. Signed-off-by:
Shahed Shaikh <shshaikh@marvell.com> Tested-by:
Yonggen Xu <Yonggen.Xu@dell.com> Signed-off-by:
Manish Chopra <manishc@marvell.com> Signed-off-by:
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Hayes Wang authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 9583a363 ] Initailization would reset runtime suspend by tp->saved_wolopts, so the tp->saved_wolopts should be set before initializing. Signed-off-by:
Hayes Wang <hayeswang@realtek.com> Signed-off-by:
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Michael Ellerman authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 78f7a756 ] The driver for Cisco Aironet 4500 and 4800 series cards (airo.c), implements AIROOLDIOCTL/SIOCDEVPRIVATE in airo_ioctl(). The ioctl handler copies an aironet_ioctl struct from userspace, which includes a command. Some of the commands are handled in readrids(), where the user controlled command is converted into a driver-internal value called "ridcode". There are two command values, AIROGWEPKTMP and AIROGWEPKNV, which correspond to ridcode values of RID_WEP_TEMP and RID_WEP_PERM respectively. These commands both have checks that the user has CAP_NET_ADMIN, with the comment that "Only super-user can read WEP keys", otherwise they return -EPERM. However there is another command value, AIRORRID, that lets the user specify the ridcode value directly, with no other checks. This means the user can bypass the CAP_NET_ADMIN check on AIROGWEPKTMP and AIROGWEPKNV. Fix it by moving the CAP_NET_ADMIN check out of the command handling and instead do it later based on the ridcode. That way regardless of whether the ridcode is set via AIROGWEPKTMP or AIROGWEPKNV, or passed in using AIRORID, we always do the CAP_NET_ADMIN check. Found by Ilja by code inspection, not tested as I don't have the required hardware. Reported-by:
Ilja Van Sprundel <ivansprundel@ioactive.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au> Signed-off-by:
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Michael Ellerman authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit d6bce213 ] The driver for Cisco Aironet 4500 and 4800 series cards (airo.c), implements AIROOLDIOCTL/SIOCDEVPRIVATE in airo_ioctl(). The ioctl handler copies an aironet_ioctl struct from userspace, which includes a command and a length. Some of the commands are handled in readrids(), which kmalloc()'s a buffer of RIDSIZE (2048) bytes. That buffer is then passed to PC4500_readrid(), which has two cases. The else case does some setup and then reads up to RIDSIZE bytes from the hardware into the kmalloc()'ed buffer. Here len == RIDSIZE, pBuf is the kmalloc()'ed buffer: // read the rid length field bap_read(ai, pBuf, 2, BAP1); // length for remaining part of rid len = min(len, (int)le16_to_cpu(*(__le16*)pBuf)) - 2; ... // read remainder of the rid rc = bap_read(ai, ((__le16*)pBuf)+1, len, BAP1); PC4500_readrid() then returns to readrids() which does: len = comp->len; if (copy_to_user(comp->data, iobuf, min(len, (int)RIDSIZE))) { Where comp->len is the user controlled length field. So if the "rid length field" returned by the hardware is < 2048, and the user requests 2048 bytes in comp->len, we will leak the previous contents of the kmalloc()'ed buffer to userspace. Fix it by kzalloc()'ing the buffer. Found by Ilja by code inspection, not tested as I don't have the required hardware. Reported-by:
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Hannes Reinecke authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 0e220962 ] When a link is going down the driver will be calling fnic_cleanup_io(), which will traverse all commands and calling 'done' for each found command. While the traversal is handled under the host_lock, calling 'done' happens after the host_lock is being dropped. As fnic_queuecommand_lck() is being called with the host_lock held, it might well be that it will pick the command being selected for abortion from the above routine and enqueue it for sending, but then 'done' is being called on that very command from the above routine. Which of course confuses the hell out of the scsi midlayer. So fix this by not queueing commands when fnic_cleanup_io is active. Link: https://lore.kernel.org/r/20200116102053.62755-1-hare@suse.deSigned-off-by:
Hannes Reinecke <hare@suse.de> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
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Nicolas Dichtel authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 95224166 ] With an ebpf program that redirects packets through a vti[6] interface, the packets are dropped because no dst is attached. This could also be reproduced with an AF_PACKET socket, with the following python script (vti1 is an ip_vti interface): import socket send_s = socket.socket(socket.AF_PACKET, socket.SOCK_RAW, 0) # scapy # p = IP(src='10.100.0.2', dst='10.200.0.1')/ICMP(type='echo-request') # raw(p) req = b'E\x00\x00\x1c\x00\x01\x00\x00@\x01e\xb2\nd\x00\x02\n\xc8\x00\x01\x08\x00\xf7\xff\x00\x00\x00\x00' send_s.sendto(req, ('vti1', 0x800, 0, 0)) Signed-off-by:
Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by:
Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by:
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Arnd Bergmann authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit e1611965 ] After the introduction of CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3, the wext code produces a bogus warning: In function 'iw_handler_get_iwstats', inlined from 'ioctl_standard_call' at net/wireless/wext-core.c:1015:9, inlined from 'wireless_process_ioctl' at net/wireless/wext-core.c:935:10, inlined from 'wext_ioctl_dispatch.part.8' at net/wireless/wext-core.c:986:8, inlined from 'wext_handle_ioctl': net/wireless/wext-core.c:671:3: error: argument 1 null where non-null expected [-Werror=nonnull] memcpy(extra, stats, sizeof(struct iw_statistics)); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from arch/x86/include/asm/string.h:5, net/wireless/wext-core.c: In function 'wext_handle_ioctl': arch/x86/include/asm/string_64.h:14:14: note: in a call to function 'memcpy' declared here The problem is that ioctl_standard_call() sometimes calls the handler with a NULL argument that would cause a problem for iw_handler_get_iwstats. However, iw_handler_get_iwstats never actually gets called that way. Marking that function as noinline avoids the warning and leads to slightly smaller object code as well. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20200107200741.3588770-1-arnd@arndb.deSigned-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
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Cambda Zhu authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 4fad78ad ] This patch fixes the calculation of queue when we restore flow director filters after resetting adapter. In ixgbe_fdir_filter_restore(), filter's vf may be zero which makes the queue outside of the rx_ring array. The calculation is changed to the same as ixgbe_add_ethtool_fdir_entry(). Signed-off-by:
Cambda Zhu <cambda@linux.alibaba.com> Tested-by:
Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by:
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Radoslaw Tyl authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit aa604651 ] Currently, though the FDB entry is added to VF, it does not appear in RAR filters. VF driver only allows to add 10 entries. Attempting to add another causes an error. This patch removes limitation and allows use of all free RAR entries for the FDB if needed. Fixes: 46ec20ff ("ixgbevf: Add macvlan support in the set rx mode op") Signed-off-by:
Radoslaw Tyl <radoslawx.tyl@intel.com> Acked-by:
Paul Menzel <pmenzel@molgen.mpg.de> Signed-off-by:
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Lubomir Rintel authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 8bea5ac0 ] Determined empirically, no documentation is available. The OLPC XO-1.75 laptop used parent 1, that one being VCTCXO/4 (65MHz), but thought it's a VCTCXO/2 (130MHz). The mmp2 timer driver, not knowing what is going on, ended up just dividing the rate as of commit f36797ee ("ARM: mmp/mmp2: dt: enable the clock")' Link: https://lore.kernel.org/r/20191218190454.420358-3-lkundrak@v3.skSigned-off-by:
Lubomir Rintel <lkundrak@v3.sk> Acked-by:
Stephen Boyd <sboyd@kernel.org> Signed-off-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
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Lee Jones authored
BugLink: https://bugs.launchpad.net/bugs/1864774 A pointer to 'struct si470x_device' is currently used after free: drivers/media/radio/si470x/radio-si470x-i2c.c:462:25-30: ERROR: reference preceded by free on line 460 Shift the call to free() down past its final use. NB: Not sending to Mainline, since the problem does not exist there, it was caused by the backport of 2df200ab ("media: si470x-i2c: add missed operations in remove") to the stable trees. Cc: <stable@vger.kernel.org> # v3.18+ Reported-by:
kbuild test robot <lkp@intel.com> Reported-by:
Julia Lawall <julia.lawall@lip6.fr> Signed-off-by:
Lee Jones <lee.jones@linaro.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Bin Liu authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 09ed259f ] VBUS should be turned off when leaving the host mode. Set GCTL_PRTCAP to device mode in teardown to de-assert DRVVBUS pin to turn off VBUS power. Fixes: 5f94adfe ("usb: dwc3: core: refactor mode initialization to its own function") Cc: stable@vger.kernel.org Signed-off-by:
Bin Liu <b-liu@ti.com> Signed-off-by:
Felipe Balbi <balbi@kernel.org> Signed-off-by:
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Zhenzhong Duan authored
BugLink: https://bugs.launchpad.net/bugs/1864774 commit 9a655c77 upstream. tpk_write()/tpk_close() could be interrupted when holding a mutex, then in timer handler tpk_write() may be called again trying to acquire same mutex, lead to deadlock. Google syzbot reported this issue with CONFIG_DEBUG_ATOMIC_SLEEP enabled: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:938 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 0, name: swapper/1 1 lock held by swapper/1/0: ... Call Trace: <IRQ> dump_stack+0x197/0x210 ___might_sleep.cold+0x1fb/0x23e __might_sleep+0x95/0x190 __mutex_lock+0xc5/0x13c0 mutex_lock_nested+0x16/0x20 tpk_write+0x5d/0x340 resync_tnc+0x1b6/0x320 call_timer_fn+0x1ac/0x780 run_timer_softirq+0x6c3/0x1790 __do_softirq+0x262/0x98c irq_exit+0x19b/0x1e0 smp_apic_timer_interrupt+0x1a3/0x610 apic_timer_interrupt+0xf/0x20 </IRQ> See link https://syzkaller.appspot.com/bug?extid=2eeef62ee31f9460ad65 for more details. Fix it by using spinlock in process context instead of mutex and having interrupt disabled in critical section. Reported-by: syzbot+2eeef62ee31f9460ad65@syzkaller.appspotmail.com Signed-off-by:
Zhenzhong Duan <zhenzhong.duan@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20200113034842.435-1-zhenzhong.duan@gmail.comSigned-off-by:
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Hans Verkuil authored
BugLink: https://bugs.launchpad.net/bugs/1864774 commit 569bc8d6 upstream. This fixes a syzbot failure since actlen could be uninitialized, but it was still used. Syzbot link: https://syzkaller.appspot.com/bug?extid=6bf9606ee955b646c0e1 Reported-and-tested-by: syzbot+6bf9606ee955b646c0e1@syzkaller.appspotmail.com Signed-off-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> Acked-by:
Sean Young <sean@mess.org> Signed-off-by:
Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by:
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Hans Verkuil authored
BugLink: https://bugs.launchpad.net/bugs/1864774 commit de89d086 upstream. Allocate gspca_dev->usb_buf with kzalloc instead of kmalloc to ensure it is property zeroed. This fixes various syzbot errors about uninitialized data. Syzbot links: https://syzkaller.appspot.com/bug?extid=32310fc2aea76898d074 https://syzkaller.appspot.com/bug?extid=99706d6390be1ac542a2 https://syzkaller.appspot.com/bug?extid=64437af5c781a7f0e08e Reported-and-tested-by: syzbot+32310fc2aea76898d074@syzkaller.appspotmail.com Reported-and-tested-by: syzbot+99706d6390be1ac542a2@syzkaller.appspotmail.com Reported-and-tested-by: syzbot+64437af5c781a7f0e08e@syzkaller.appspotmail.com Signed-off-by:
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Sean Young authored
BugLink: https://bugs.launchpad.net/bugs/1864774 commit eecc70d2 upstream. This results in an uninitialized variable read. Reported-by: syzbot+6bf9606ee955b646c0e1@syzkaller.appspotmail.com Signed-off-by:
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Jan Kara authored
BugLink: https://bugs.launchpad.net/bugs/1864774 commit 5474ca7d upstream. When a filesystem is mounted with jdev mount option, we store the journal device name in an allocated string in superblock. However we fail to ever free that string. Fix it. Reported-by: syzbot+1c6756baf4b16b94d2a6@syzkaller.appspotmail.com Fixes: c3aa0776 ("reiserfs: Properly display mount options in /proc/mounts") CC: stable@vger.kernel.org Signed-off-by:
Jan Kara <jack@suse.cz> Signed-off-by:
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Dan Carpenter authored
BugLink: https://bugs.launchpad.net/bugs/1864774 commit c7a91bc7 upstream. What we are trying to do is change the '=' character to a NUL terminator and then at the end of the function we restore it back to an '='. The problem is there are two error paths where we jump to the end of the function before we have replaced the '=' with NUL. We end up putting the '=' in the wrong place (possibly one element before the start of the buffer). Link: http://lkml.kernel.org/r/20200115055426.vdjwvry44nfug7yy@kili.mountain Reported-by: syzbot+e64a13c5369a194d67df@syzkaller.appspotmail.com Fixes: 095f1fc4 ("mempolicy: rework shmem mpol parsing and display") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Vlastimil Babka <vbabka@suse.cz> Dmitry Vyukov <dvyukov@google.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Lee Schermerhorn <lee.schermerhorn@hp.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: <stable@vger.kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
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Dirk Behme authored
BugLink: https://bugs.launchpad.net/bugs/1864774 commit d7bbd6c1 upstream. Since v4.3-rc1 commit 0723c05f ("arm64: enable more compressed Image formats"), it is possible to build Image.{bz2,lz4,lzma,lzo} AArch64 images. However, the commit missed adding support for removing those images on 'make ARCH=arm64 (dist)clean'. Fix this by adding them to the target list. Make sure to match the order of the recipes in the makefile. Cc: stable@vger.kernel.org # v4.3+ Fixes: 0723c05f ("arm64: enable more compressed Image formats") Signed-off-by:
Dirk Behme <dirk.behme@de.bosch.com> Signed-off-by:
Eugeniu Rosca <erosca@de.adit-jv.com> Reviewed-by:
Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by:
Will Deacon <will@kernel.org> Signed-off-by:
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Herbert Xu authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 07bfd9bd ] On module unload of pcrypt we must unregister the crypto algorithms first and then tear down the padata structure. As otherwise the crypto algorithms are still alive and can be used while the padata structure is being freed. Fixes: 5068c7a8 ("crypto: pcrypt - Add pcrypt crypto...") Cc: <stable@vger.kernel.org> Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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Herbert Xu authored
BugLink: https://bugs.launchpad.net/bugs/1864774 commit 37f96694 upstream. As af_alg_release_parent may be called from BH context (most notably due to an async request that only completes after socket closure, or as reported here because of an RCU-delayed sk_destruct call), we must use bh_lock_sock instead of lock_sock. Reported-by: syzbot+c2f1558d49e25cc36e5e@syzkaller.appspotmail.com Reported-by:
Eric Dumazet <eric.dumazet@gmail.com> Fixes: c840ac6a ("crypto: af_alg - Disallow bind/setkey/...") Cc: <stable@vger.kernel.org> Signed-off-by:
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Eric Dumazet authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 55cd9f67 ] It is possible for malicious userspace to set TCF_EM_SIMPLE bit even for matches that should not have this bit set. This can fool two places using tcf_em_is_simple() 1) tcf_em_tree_destroy() -> memory leak of em->data if ops->destroy() is NULL 2) tcf_em_tree_dump() wrongly report/leak 4 low-order bytes of a kernel pointer. BUG: memory leak unreferenced object 0xffff888121850a40 (size 32): comm "syz-executor927", pid 7193, jiffies 4294941655 (age 19.840s) hex dump (first 32 bytes): 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000f67036ea>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000f67036ea>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000f67036ea>] slab_alloc mm/slab.c:3320 [inline] [<00000000f67036ea>] __do_kmalloc mm/slab.c:3654 [inline] [<00000000f67036ea>] __kmalloc_track_caller+0x165/0x300 mm/slab.c:3671 [<00000000fab0cc8e>] kmemdup+0x27/0x60 mm/util.c:127 [<00000000d9992e0a>] kmemdup include/linux/string.h:453 [inline] [<00000000d9992e0a>] em_nbyte_change+0x5b/0x90 net/sched/em_nbyte.c:32 [<000000007e04f711>] tcf_em_validate net/sched/ematch.c:241 [inline] [<000000007e04f711>] tcf_em_tree_validate net/sched/ematch.c:359 [inline] [<000000007e04f711>] tcf_em_tree_validate+0x332/0x46f net/sched/ematch.c:300 [<000000007a769204>] basic_set_parms net/sched/cls_basic.c:157 [inline] [<000000007a769204>] basic_change+0x1d7/0x5f0 net/sched/cls_basic.c:219 [<00000000e57a5997>] tc_new_tfilter+0x566/0xf70 net/sched/cls_api.c:2104 [<0000000074b68559>] rtnetlink_rcv_msg+0x3b2/0x4b0 net/core/rtnetlink.c:5415 [<00000000b7fe53fb>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477 [<00000000e83a40d0>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5442 [<00000000d62ba933>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] [<00000000d62ba933>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328 [<0000000088070f72>] netlink_sendmsg+0x2c0/0x570 net/netlink/af_netlink.c:1917 [<00000000f70b15ea>] sock_sendmsg_nosec net/socket.c:639 [inline] [<00000000f70b15ea>] sock_sendmsg+0x54/0x70 net/socket.c:659 [<00000000ef95a9be>] ____sys_sendmsg+0x2d0/0x300 net/socket.c:2330 [<00000000b650f1ab>] ___sys_sendmsg+0x8a/0xd0 net/socket.c:2384 [<0000000055bfa74a>] __sys_sendmsg+0x80/0xf0 net/socket.c:2417 [<000000002abac183>] __do_sys_sendmsg net/socket.c:2426 [inline] [<000000002abac183>] __se_sys_sendmsg net/socket.c:2424 [inline] [<000000002abac183>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2424 Fixes: 1da177e4 ("Linux-2.6.12-rc2") Signed-off-by:
Eric Dumazet <edumazet@google.com> Reported-by: syzbot+03c4738ed29d5d366ddf@syzkaller.appspotmail.com Cc: Cong Wang <xiyou.wangcong@gmail.com> Acked-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
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Laura Abbott authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit bc3bdb12 ] Steve Ellis reported incorrect block sizes and alignement offsets with a SATA enclosure. Adding a quirk to disable UAS fixes the problems. Reported-by:
Steven Ellis <sellis@redhat.com> Cc: Pacho Ramos <pachoramos@gmail.com> Signed-off-by:
Laura Abbott <labbott@fedoraproject.org> Signed-off-by:
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Arnd Bergmann authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 30780d08 ] With -O3, gcc has found an actual unintialized variable stored into an mmio register in two instances: drivers/atm/eni.c: In function 'discard': drivers/atm/eni.c:465:13: error: 'dma[1]' is used uninitialized in this function [-Werror=uninitialized] writel(dma[i*2+1],eni_dev->rx_dma+dma_wr*8+4); ^ drivers/atm/eni.c:465:13: error: 'dma[3]' is used uninitialized in this function [-Werror=uninitialized] Change the code to always write zeroes instead. Signed-off-by:
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Krzysztof Kozlowski authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit 00c0688c ] Since net_device.mem_start is unsigned long, it should not be cast to int right before casting to pointer. This fixes warning (compile testing on alpha architecture): drivers/net/wan/sdla.c: In function ‘sdla_transmit’: drivers/net/wan/sdla.c:711:13: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] Signed-off-by:
Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by:
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Fenghua Yu authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit f11421ba ] Atomic operations that span cache lines are super-expensive on x86 (not just to the current processor, but also to other processes as all memory operations are blocked until the operation completes). Upcoming x86 processors have a switch to cause such operations to generate a #AC trap. It is expected that some real time systems will enable this mode in BIOS. In preparation for this, it is necessary to fix code that may execute atomic instructions with operands that cross cachelines because the #AC trap will crash the kernel. Since "pwol_mask" is local and never exposed to concurrency, there is no need to set bits in pwol_mask using atomic operations. Directly operate on the byte which contains the bit instead of using __set_bit() to avoid any big endian concern due to type cast to unsigned long in __set_bit(). Suggested-by:
Peter Zijlstra <peterz@infradead.org> Signed-off-by:
Fenghua Yu <fenghua.yu@intel.com> Signed-off-by:
Tony Luck <tony.luck@intel.com> Signed-off-by:
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Andreas Kemnade authored
BugLink: https://bugs.launchpad.net/bugs/1864774 [ Upstream commit a76dfb85 ] Platform device aliases were missing so module autoloading did not work. Signed-off-by:
Andreas Kemnade <andreas@kemnade.info> Reviewed-by:
Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191213214802.22268-1-andreas@kemnade.infoSigned-off-by:
Wim Van Sebroeck <wim@linux-watchdog.org> Signed-off-by:
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Johan Hovold authored
BugLink: https://bugs.launchpad.net/bugs/1864774 commit 2d68bb26 upstream. Make sure to use the current alternate setting when verifying the storage interface descriptors to avoid submitting an URB to an invalid endpoint. Failing to do so could cause the driver to misbehave or trigger a WARN() in usb_submit_urb() that kernels with panic_on_warn set would choke on. Fixes: a1030e92 ("[PATCH] zd1211rw: Convert installer CDROM device into WLAN device") Cc: stable <stable@vger.kernel.org> # 2.6.19 Signed-off-by:
Johan Hovold <johan@kernel.org> Signed-off-by:
Kalle Valo <kvalo@codeaurora.org> Signed-off-by:
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Johan Hovold authored
BugLink: https://bugs.launchpad.net/bugs/1864774 commit 39a4281c upstream. Make sure to use the current alternate setting when verifying the interface descriptors to avoid binding to an invalid interface. Failing to do so could cause the driver to misbehave or trigger a WARN() in usb_submit_urb() that kernels with panic_on_warn set would choke on. Fixes: 26f1fad2 ("New driver: rtl8xxxu (mac80211)") Cc: stable <stable@vger.kernel.org> # 4.4 Cc: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by:
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