- 27 Jan, 2020 40 commits
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Pavel Tatashin authored
[ Upstream commit 8c551f91 ] There is a bug in create_safe_exec_page(), when page table is allocated it is not checked that table is allocated successfully: But it is dereferenced in: pgd_none(READ_ONCE(*pgdp)). Check that allocation was successful. Fixes: 82869ac5 ("arm64: kernel: Add support for hibernate/suspend-to-disk") Reviewed-by:
James Morse <james.morse@arm.com> Signed-off-by:
Pavel Tatashin <pasha.tatashin@soleen.com> Signed-off-by:
Will Deacon <will@kernel.org> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Jean Delvare authored
[ Upstream commit 81dde26d ] Before reading the Extended Size field, we should ensure it fits in the DMI record. There is already a record length check but it does not cover that field. It would take a seriously corrupted DMI table to hit that bug, so no need to worry, but we should still fix it. Signed-off-by:
Jean Delvare <jdelvare@suse.de> Fixes: 6deae96b ("firmware, DMI: Add function to look up a handle and return DIMM size") Cc: Tony Luck <tony.luck@intel.com> Cc: Borislav Petkov <bp@suse.de> Signed-off-by:
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Robin Gong authored
[ Upstream commit bd73dfab ] Illegal memory will be touch if SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V3 (41) exceed the size of structure sdma_script_start_addrs(40), thus cause memory corrupt such as slob block header so that kernel trap into while() loop forever in slob_free(). Please refer to below code piece in imx-sdma.c: for (i = 0; i < sdma->script_number; i++) if (addr_arr[i] > 0) saddr_arr[i] = addr_arr[i]; /* memory corrupt here */ That issue was brought by commit a572460b ("dmaengine: imx-sdma: Add support for version 3 firmware") because SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V3 (38->41 3 scripts added) not align with script number added in sdma_script_start_addrs(2 scripts). Fixes: a572460b ("dmaengine: imx-sdma: Add support for version 3 firmware") Cc: stable@vger.kernel Link: https://www.spinics.net/lists/arm-kernel/msg754895.htmlSigned-off-by:
Robin Gong <yibin.gong@nxp.com> Reported-by:
Jurgen Lambrecht <J.Lambrecht@TELEVIC.com> Link: https://lore.kernel.org/r/1569347584-3478-1-git-send-email-yibin.gong@nxp.com [vkoul: update the patch title] Signed-off-by:
Vinod Koul <vkoul@kernel.org> Signed-off-by:
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Michael S. Tsirkin authored
[ Upstream commit 245cdd9f ] When device stop was moved out of reset, test device wasn't updated to stop before reset, this resulted in a use after free. Fix by invoking stop appropriately. Fixes: b211616d ("vhost: move -net specific code out") Signed-off-by:
Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
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Jeffrey Hugo authored
[ Upstream commit 78e31c42 ] On msm8998, vblank timeouts are observed because the DSI controller is not reset properly, which ends up stalling the MDP. This is because the reset logic is not correct per the hardware documentation. The documentation states that after asserting reset, software should wait some time (no indication of how long), or poll the status register until it returns 0 before deasserting reset. wmb() is insufficient for this purpose since it just ensures ordering, not timing between writes. Since asserting and deasserting reset occurs on the same register, ordering is already guaranteed by the architecture, making the wmb extraneous. Since we would define a timeout for polling the status register to avoid a possible infinite loop, lets just use a static delay of 20 ms, since 16.666 ms is the time available to process one frame at 60 fps. Fixes: a689554b ("drm/msm: Initial add DSI connector support") Cc: Hai Li <hali@codeaurora.org> Cc: Rob Clark <robdclark@gmail.com> Signed-off-by:
Jeffrey Hugo <jeffrey.l.hugo@gmail.com> Reviewed-by:
Sean Paul <sean@poorly.run> [seanpaul renamed RESET_DELAY to DSI_RESET_TOGGLE_DELAY_MS] Signed-off-by:
Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191011133939.16551-1-jeffrey.l.hugo@gmail.comSigned-off-by:
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Karsten Graul authored
[ Upstream commit 107529e3 ] smc_rx_recvmsg() first checks if data is available, and then if RCV_SHUTDOWN is set. There is a race when smc_cdc_msg_recv_action() runs in between these 2 checks, receives data and sets RCV_SHUTDOWN. In that case smc_rx_recvmsg() would return from receive without to process the available data. Fix that with a final check for data available if RCV_SHUTDOWN is set. Move the check for data into a function and call it twice. And use the existing helper smc_rx_data_available(). Fixes: 952310cc ("smc: receive data from RMBE") Reviewed-by:
Ursula Braun <ubraun@linux.ibm.com> Signed-off-by:
Karsten Graul <kgraul@linux.ibm.com> Signed-off-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by:
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Karsten Graul authored
[ Upstream commit 882dcfe5 ] smc_cdc_rxed_any_close_or_senddone() is used as an end condition for the receive loop. This conflicts with smc_cdc_msg_recv_action() which could run in parallel and set the bits checked by smc_cdc_rxed_any_close_or_senddone() before the receive is processed. In that case we could return from receive with no data, although data is available. The same applies to smc_rx_wait(). Fix this by checking for RCV_SHUTDOWN only, which is set in smc_cdc_msg_recv_action() after the receive was actually processed. Fixes: 952310cc ("smc: receive data from RMBE") Reviewed-by:
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Eric Dumazet authored
[ Upstream commit 1f142c17 ] tcp_memory_pressure is read without holding any lock, and its value could be changed on other cpus. Use READ_ONCE() to annotate these lockless reads. The write side is already using atomic ops. Fixes: b8da51eb ("tcp: introduce tcp_under_memory_pressure()") Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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Eric Dumazet authored
[ Upstream commit 60b173ca ] reqsk_queue_empty() is called from inet_csk_listen_poll() while other cpus might write ->rskq_accept_head value. Use {READ|WRITE}_ONCE() to avoid compiler tricks and potential KCSAN splats. Fixes: fff1f300 ("tcp: add a spinlock to protect struct request_sock_queue") Signed-off-by:
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Eric Dumazet authored
[ Upstream commit 503978ac ] As mentioned in https://github.com/google/ktsan/wiki/READ_ONCE-and-WRITE_ONCE#it-may-improve-performance a C compiler can legally transform : if (memory_pressure && *memory_pressure) *memory_pressure = 0; to : if (memory_pressure) *memory_pressure = 0; Fixes: 06044751 ("tcp: add TCPMemoryPressuresChrono counter") Fixes: 180d8cd9 ("foundations of per-cgroup memory pressure controlling.") Fixes: 3ab224be ("[NET] CORE: Introducing new memory accounting interface.") Signed-off-by:
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YueHaibing authored
[ Upstream commit 11c9a7d3 ] If tcf_register_action failed, mirred_device_notifier should be unregistered. Fixes: 3b87956e ("net sched: fix race in mirred device removal") Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Signed-off-by:
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Alexandra Winter authored
[ Upstream commit be40a86c ] Without this patch, a command bit in the supported commands mask is only ever set to unsupported during set online. If a command is ever marked as unsupported (e.g. because of error during qeth_l2_vnicc_query_cmds), subsequent successful initialization (offline/online) would not bring it back. Fixes: caa1f0b1 ("s390/qeth: add VNICC enable/disable support") Signed-off-by:
Alexandra Winter <wintera@linux.ibm.com> Signed-off-by:
Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by:
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Alexandra Winter authored
[ Upstream commit b528965b ] Smatch discovered the use of uninitialized variable sup_cmds in error paths. Fixes: caa1f0b1 ("s390/qeth: add VNICC enable/disable support") Signed-off-by:
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Xin Long authored
[ Upstream commit 819be810 ] This patch is to fix a NULL-ptr deref in selinux_socket_connect_helper: [...] kasan: GPF could be caused by NULL-ptr deref or user memory access [...] RIP: 0010:selinux_socket_connect_helper+0x94/0x460 [...] Call Trace: [...] selinux_sctp_bind_connect+0x16a/0x1d0 [...] security_sctp_bind_connect+0x58/0x90 [...] sctp_process_asconf+0xa52/0xfd0 [sctp] [...] sctp_sf_do_asconf+0x785/0x980 [sctp] [...] sctp_do_sm+0x175/0x5a0 [sctp] [...] sctp_assoc_bh_rcv+0x285/0x5b0 [sctp] [...] sctp_backlog_rcv+0x482/0x910 [sctp] [...] __release_sock+0x11e/0x310 [...] release_sock+0x4f/0x180 [...] sctp_accept+0x3f9/0x5a0 [sctp] [...] inet_accept+0xe7/0x720 It was caused by that the 'newsk' sk_socket was not set before going to security sctp hook when processing asconf chunk with SCTP_PARAM_ADD_IP or SCTP_PARAM_SET_PRIMARY: inet_accept()-> sctp_accept(): lock_sock(): lock listening 'sk' do_softirq(): sctp_rcv(): <-- [1] asconf chunk arrives and enqueued in 'sk' backlog sctp_sock_migrate(): set asoc's sk to 'newsk' release_sock(): sctp_backlog_rcv(): lock 'newsk' sctp_process_asconf() <-- [2] unlock 'newsk' sock_graft(): set sk_socket <-- [3] As it shows, at [1] the asconf chunk would be put into the listening 'sk' backlog, as accept() was holding its sock lock. Then at [2] asconf would get processed with 'newsk' as asoc's sk had been set to 'newsk'. However, 'newsk' sk_socket is not set until [3], while selinux_sctp_bind_connect() would deref it, then kernel crashed. Here to fix it by adding the chunk to sk_backlog until newsk sk_socket is set when .accept() is done. Note that sk->sk_socket can be NULL when the sock is closed, so SOCK_DEAD flag is also needed to check in sctp_newsk_ready(). Thanks to Ondrej for reviewing the code. Fixes: d452930f ("selinux: Add SCTP support") Reported-by:
Ying Xu <yinxu@redhat.com> Suggested-by:
Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by:
Xin Long <lucien.xin@gmail.com> Acked-by:
Neil Horman <nhorman@tuxdriver.com> Signed-off-by:
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Antonio Borneo authored
[ Upstream commit 520cf600 ] Accordingly to Synopsys documentation [1] and [2], when bit PPSEN0 in register MAC_PPS_CONTROL is set it selects the functionality command in the same register, otherwise selects the functionality control. Command functionality is required to either enable (command 0x2) and disable (command 0x5) the flexible PPS output, but the bit PPSEN0 is currently set only for enabling. Set the bit PPSEN0 to properly disable flexible PPS output. Tested on STM32MP15x, based on dwmac 4.10a. [1] DWC Ethernet QoS Databook 4.10a October 2014 [2] DWC Ethernet QoS Databook 5.00a September 2017 Signed-off-by:
Antonio Borneo <antonio.borneo@st.com> Fixes: 9a8a02c9 ("net: stmmac: Add Flexible PPS support") Signed-off-by:
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Antonio Borneo authored
[ Upstream commit 5da202c8 ] The field "name" in struct ptp_clock_info has a fixed size of 16 chars and is used as zero terminated string by clock_name_show() in drivers/ptp/ptp_sysfs.c The current initialization value requires 17 chars to fit also the null termination, and this causes overflow to the next bytes in the struct when the string is read as null terminated: hexdump -C /sys/class/ptp/ptp0/clock_name 00000000 73 74 6d 6d 61 63 5f 70 74 70 5f 63 6c 6f 63 6b |stmmac_ptp_clock| 00000010 a0 ac b9 03 0a |.....| where the extra 4 bytes (excluding the newline) after the string represent the integer 0x03b9aca0 = 62500000 assigned to the field "max_adj" that follows "name" in the same struct. There is no strict requirement for the "name" content and in the comment in ptp_clock_kernel.h it's reported it should just be 'A short "friendly name" to identify the clock'. Replace it with "stmmac ptp". Signed-off-by:
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Haishuang Yan authored
[ Upstream commit 4123f637 ] ip6erspan driver calls ether_setup(), after commit 61e84623 ("net: centralize net_device min/max MTU checking"), the range of mtu is [min_mtu, max_mtu], which is [68, 1500] by default. It causes the dev mtu of the erspan device to not be greater than 1500, this limit value is not correct for ip6erspan tap device. Fixes: 61e84623 ("net: centralize net_device min/max MTU checking") Signed-off-by:
Haishuang Yan <yanhaishuang@cmss.chinamobile.com> Acked-by:
William Tu <u9012063@gmail.com> Signed-off-by:
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Eric Biggers authored
[ Upstream commit 36453c85 ] If llc_conn_state_process() sees that llc_conn_service() put the skb on a list, it will drop one fewer references to it. This is wrong because the current behavior is that llc_conn_service() never consumes a reference to the skb. The code also makes the number of skb references being dropped conditional on which of ind_prim and cfm_prim are nonzero, yet neither of these affects how many references are *acquired*. So there is extra code that tries to fix this up by sometimes taking another reference. Remove the unnecessary/broken refcounting logic and instead just add an skb_get() before the only two places where an extra reference is actually consumed. Fixes: 1da177e4 ("Linux-2.6.12-rc2") Signed-off-by:
Eric Biggers <ebiggers@google.com> Signed-off-by:
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Eric Biggers authored
[ Upstream commit fc8d5db1 ] All callers of llc_conn_state_process() except llc_build_and_send_pkt() (via llc_ui_sendmsg() -> llc_ui_send_data()) assume that it always consumes a reference to the skb. Fix this caller to do the same. Fixes: 1da177e4 ("Linux-2.6.12-rc2") Signed-off-by:
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Johannes Berg authored
[ Upstream commit 95697f99 ] We can process deauth frames and all, but we drop them very early in the RX path today - this could never have worked. Fixes: 2cc59e78 ("mac80211: reply to AUTH with DEAUTH if sta allocation fails in IBSS") Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/20191004123706.15768-2-luca@coelho.fiSigned-off-by:
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David Howells authored
[ Upstream commit 4c1295dc ] rxrpc_put_*conn() calls trace_rxrpc_conn() after they have done the decrement of the refcount - which looks at the debug_id in the connection record. But unless the refcount was reduced to zero, we no longer have the right to look in the record and, indeed, it may be deleted by some other thread. Fix this by getting the debug_id out before decrementing the refcount and then passing that into the tracepoint. Fixes: 363deeab ("rxrpc: Add connection tracepoint and client conn state tracepoint") Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
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Jose Abreu authored
[ Upstream commit 25683bab ] Some setups may not have all Unicast addresses filters available. Check the number of available filters before trying to setup it. Fixes: 477286b5 ("stmmac: add GMAC4 core support") Signed-off-by:
Jose Abreu <Jose.Abreu@synopsys.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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Ard Biesheuvel authored
[ Upstream commit 3a8ecc93 ] Commit 7fd8930f "nvme: add a common helper to read Identify Controller data" has re-introduced an issue that we have attempted to work around in the past, in commit a310acd7 ("NVMe: use split lo_hi_{read,write}q"). The problem is that some PCIe NVMe controllers do not implement 64-bit outbound accesses correctly, which is why the commit above switched to using lo_hi_[read|write]q for all 64-bit BAR accesses occuring in the code. In the mean time, the NVMe subsystem has been refactored, and now calls into the PCIe support layer for NVMe via a .reg_read64() method, which fails to use lo_hi_readq(), and thus reintroduces the problem that the workaround above aimed to address. Given that, at the moment, .reg_read64() is only used to read the capability register [which is known to tolerate split reads], let's switch .reg_read64() to lo_hi_readq() as well. This fixes a boot issue on some ARM boxes with NVMe behind a Synopsys DesignWare PCIe host controller. Fixes: 7fd8930f ("nvme: add a common helper to read Identify Controller data") Signed-off-by:
Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by:
Sagi Grimberg <sagi@grimberg.me> Signed-off-by:
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Vladimir Oltean authored
[ Upstream commit 83c8c3cf ] As explained in the "net: sched: taprio: Avoid division by zero on invalid link speed" commit, it is legal for the ethtool API to return zero as a link speed. So guard against it to ensure we don't perform a division by zero in kernel. Fixes: e0a7683d ("net/sched: cbs: fix port_rate miscalculation") Signed-off-by:
Vladimir Oltean <olteanv@gmail.com> Acked-by:
Vinicius Costa Gomes <vinicius.gomes@intel.com> Signed-off-by:
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Dan Carpenter authored
[ Upstream commit 23104218 ] The "gmac->phy_mode" variable is an enum and in this context GCC will treat it as an unsigned int so the error handling will never be triggered. Fixes: b1c17215 ("stmmac: add ipq806x glue layer") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Dan Carpenter authored
[ Upstream commit 1a4b62a0 ] The "priv->phy_mode" is an enum and in this context GCC will treat it as an unsigned int so it can never be less than zero. Fixes: 492caffa ("net: ethernet: nixge: Add support for National Instruments XGE netdev") Signed-off-by:
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Dan Carpenter authored
[ Upstream commit d7eb6512 ] The "iface" variable is an enum and in this context GCC treats it as an unsigned int so the error handling is never triggered. Fixes: b7862412 ("of_mdio: Abstract a general interface for phy connect") Signed-off-by:
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Dan Carpenter authored
[ Upstream commit 73e211e1 ] The "lp->phy_mode" is an enum but in this context GCC treats it as an unsigned int so the error handling is never triggered. Fixes: ee06b172 ("net: axienet: add support for standard phy-mode binding") Signed-off-by:
Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Signed-off-by:
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Dan Carpenter authored
[ Upstream commit f1021051 ] The "dwmac->phy_mode" is an enum and in this context GCC treats it as an unsigned int so the error handling is never triggered. Fixes: 566e8251 ("net: stmmac: add a glue driver for the Amlogic Meson 8b / GXBB DWMAC") Signed-off-by:
Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by:
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Dan Carpenter authored
[ Upstream commit 7f9e88e6 ] The "phy_mode" variable is an enum and in this context GCC treats it as an unsigned int so the error handling is never triggered. Fixes: 4c270b55 ("net: ethernet: socionext: add AVE ethernet driver") Signed-off-by:
Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by:
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Dan Carpenter authored
[ Upstream commit bd55f8dd ] The "priv->phy_interface" variable is an enum and in this context GCC will treat it as an unsigned int so the error handling is never triggered. Fixes: 533dd11a ("net: socionext: Add Synquacer NetSec driver") Signed-off-by:
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Dan Carpenter authored
[ Upstream commit 25a58495 ] The "priv->phy_interface" variable is an enum and in this context GCC will treat it as unsigned so the error handling will never be triggered. Fixes: 80105bef ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver") Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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Dan Carpenter authored
[ Upstream commit 002dfe80 ] The "priv->phy_mode" variable is an enum and in this context GCC will treat it as unsigned to the error handling will never trigger. Fixes: 57c5bc9a ("net: hisilicon: add hix5hd2 mac driver") Signed-off-by:
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Dan Carpenter authored
[ Upstream commit 28618314 ] The "chip" variable is an enum, and it's treated as unsigned int by GCC in this context so the error handling isn't triggered. Fixes: e8d45292 ("cxgb4: clean up init_one") Signed-off-by:
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Dan Carpenter authored
[ Upstream commit 31aefe14 ] The irqreturn_t type is an enum or an unsigned int in GCC. That creates to problems because it can't detect if the self->aq_hw_ops->hw_irq_read() call fails and at the end the function always returns IRQ_HANDLED. drivers/net/ethernet/aquantia/atlantic/aq_vec.c:316 aq_vec_isr_legacy() warn: unsigned 'err' is never less than zero. drivers/net/ethernet/aquantia/atlantic/aq_vec.c:329 aq_vec_isr_legacy() warn: always true condition '(err >= 0) => (0-u32max >= 0)' Fixes: 970a2e98 ("net: ethernet: aquantia: Vector operations") Signed-off-by:
Igor Russkikh <igor.russkikh@aquantia.com> Signed-off-by:
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Filippo Sironi authored
[ Upstream commit 0b15e02f ] To make sure the domain tlb flush completes before the function returns, explicitly wait for its completion. Signed-off-by:
Filippo Sironi <sironi@amazon.de> Fixes: 42a49f96 ("amd-iommu: flush domain tlb when attaching a new device") [joro: Added commit message and fixes tag] Signed-off-by:
Joerg Roedel <jroedel@suse.de> Signed-off-by:
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Yunfeng Ye authored
[ Upstream commit e00371af ] When dma_pool_zalloc() fail in sec_alloc_and_fill_hw_sgl(), dma_pool_free() is invoked, but the parameters that sgl_current and sgl_current->next_sgl is not match. Using sec_free_hw_sgl() instead of the original free routine. Fixes: 915e4e84 ("crypto: hisilicon - SEC security accelerator driver") Signed-off-by:
Yunfeng Ye <yeyunfeng@huawei.com> Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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Alexei Starovoitov authored
[ Upstream commit a0791f0d ] vmlinux BTF has more than 64k types. Its string section is also at the offset larger than 64k. Adjust both limits to make in-kernel BTF verifier successfully parse in-kernel BTF. Fixes: 69b693f0 ("bpf: btf: Introduce BPF Type Format (BTF)") Signed-off-by:
Alexei Starovoitov <ast@kernel.org> Acked-by:
Martin KaFai Lau <kafai@fb.com> Signed-off-by:
Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
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Aneesh Kumar K.V authored
[ Upstream commit d9101bfa ] __find_linux_mm_pte() returns a page table entry pointer after walking the page table without holding locks. To make it safe against a THP split and/or collapse, we disable interrupts around the lockless page table walk. However we need to keep interrupts disabled as long as we use the page table entry pointer that is returned. Fix addr_to_pfn() to do that. Fixes: ba41e1e1 ("powerpc/mce: Hookup derror (load/store) UE errors") Signed-off-by:
Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> [mpe: Rearrange code slightly and tweak change log wording] Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190918145328.28602-1-aneesh.kumar@linux.ibm.comSigned-off-by:
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Manivannan Sadhasivam authored
[ Upstream commit ed309bfb ] Since the helper "owl_factor_helper_round_rate" is shared between factor and composite clocks, using the factor clk specific helper function like "hw_to_owl_factor" to access its members will create issues when called from composite clk specific code. Hence, pass the "factor_hw" struct pointer directly instead of fetching it using factor clk specific helpers. This issue has been observed when a composite clock like "sd0_clk" tried to call "owl_factor_helper_round_rate" resulting in pointer dereferencing error. While we are at it, let's rename the "clk_val_best" function to "owl_clk_val_best" since this is an owl SoCs specific helper. Fixes: 4bb78fc9 ("clk: actions: Add factor clock support") Signed-off-by:
Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by:
Stephen Boyd <sboyd@kernel.org> Link: https://lkml.kernel.org/r/20190916154546.24982-2-manivannan.sadhasivam@linaro.orgSigned-off-by:
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