- 16 Feb, 2018 18 commits
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Mohamed Ghannam authored
commit 69c64866 upstream. Whenever the sock object is in DCCP_CLOSED state, dccp_disconnect() must free dccps_hc_tx_ccid and dccps_hc_rx_ccid and set to NULL. Signed-off-by:
Mohamed Ghannam <simo.ghannam@gmail.com> Reviewed-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Ville Syrjälä authored
commit 4488496d upstream. i830_disable_pipe() gets called from the power well code, and thus we're already holding the power domain mutex. That means we can't call plane->get_hw_state() as it will also try to grab the same mutex and will thus deadlock. Replace the assert_plane() calls (which calls ->get_hw_state()) with just raw register reads in i830_disable_pipe(). As a bonus we can now get a warning if plane C is enabled even though we don't even expose it as a drm plane. v2: Do a separate WARN_ON() for each plane (Chris) Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by:
Chris Wilson <chris@chris-wilson.co.uk> Fixes: d87ce764 ("drm/i915: Add .get_hw_state() method for planes") Signed-off-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171129125411.29055-1-ville.syrjala@linux.intel.com (cherry picked from commit 5816d9cb) Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Signed-off-by:
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Ville Syrjälä authored
commit 23ac1273 upstream. Unify the plane disabling during state readout by pulling the code into a new helper intel_plane_disable_noatomic(). We'll also read out the state of all planes, so that we know which planes really need to be diabled. Additonally we change the plane<->pipe mapping sanitation to work by simply disabling the offending planes instead of entire pipes. And we do it before we otherwise sanitize the crtcs, which means we don't have to worry about misassigned planes during crtc sanitation anymore. v2: Reoder patches to not depend on enum old_plane_id v3: s/for_each_pipe/for_each_intel_crtc/ Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Alex Villacís Lasso <alexvillacislasso@hotmail.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103223Reviewed-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Tested-by:
Thierry Reding <thierry.reding@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171117191917.11506-3-ville.syrjala@linux.intel.comSigned-off-by:
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Ville Syrjälä authored
commit d87ce764 upstream. Add a .get_hw_state() method for planes, returning true or false depending on whether the plane is enabled. Use it to rewrite the plane enabled/disabled asserts in platform agnostic fashion. We do lose the pre-gen4 plane<->pipe mapping checks, but since we're supposed sanitize that anyway it doesn't really matter. v2: Reoder patches to not depend on enum old_plane_id Just call assert_plane_disabled() from assert_planes_disabled() v3: Deal with disabled power wells in .get_hw_state() v4: Rebase due skl primary plane code removal Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Alex Villacís Lasso <alexvillacislasso@hotmail.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> #v2 Tested-by: Thierry Reding <thierry.reding@gmail.com> #v2 Link: https://patchwork.freedesktop.org/patch/msgid/20171117191917.11506-2-ville.syrjala@linux.intel.comSigned-off-by:
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Steven Rostedt (VMware) authored
commit 364f5665 upstream. When issuing an IPI RT push, where an IPI is sent to each CPU that has more than one RT task scheduled on it, it references the root domain's rto_mask, that contains all the CPUs within the root domain that has more than one RT task in the runable state. The problem is, after the IPIs are initiated, the rq->lock is released. This means that the root domain that is associated to the run queue could be freed while the IPIs are going around. Add a sched_get_rd() and a sched_put_rd() that will increment and decrement the root domain's ref count respectively. This way when initiating the IPIs, the scheduler will up the root domain's ref count before releasing the rq->lock, ensuring that the root domain does not go away until the IPI round is complete. Reported-by:
Pavan Kondeti <pkondeti@codeaurora.org> Signed-off-by:
Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: 4bdced5c ("sched/rt: Simplify the IPI based RT balancing logic") Link: http://lkml.kernel.org/r/CAEU1=PkiHO35Dzna8EQqNSKW1fr1y1zRQ5y66X117MG06sQtNA@mail.gmail.comSigned-off-by:
Ingo Molnar <mingo@kernel.org> Signed-off-by:
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Steven Rostedt (VMware) authored
commit ad0f1d9d upstream. When the rto_push_irq_work_func() is called, it looks at the RT overloaded bitmask in the root domain via the runqueue (rq->rd). The problem is that during CPU up and down, nothing here stops rq->rd from changing between taking the rq->rd->rto_lock and releasing it. That means the lock that is released is not the same lock that was taken. Instead of using this_rq()->rd to get the root domain, as the irq work is part of the root domain, we can simply get the root domain from the irq work that is passed to the routine: container_of(work, struct root_domain, rto_push_work) This keeps the root domain consistent. Reported-by:
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Haozhong Zhang authored
commit 2a266f23 upstream. For example, when two APF's for page ready happen after one exit and the first one becomes pending, the second one will result in #DF. Instead, just handle the second page fault synchronously. Reported-by:
Ross Zwisler <zwisler@gmail.com> Message-ID: <CAOxpaSUBf8QoOZQ1p4KfUp0jq76OKfGY4Uxs-Gg8ngReD99xww@mail.gmail.com> Reported-by:
Alec Blayne <ab@tevsa.net> Signed-off-by:
Haozhong Zhang <haozhong.zhang@intel.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com> Signed-off-by:
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Shanker Donthineni authored
commit 932b50c7 upstream. The ARM architecture defines the memory locations that are permitted to be accessed as the result of a speculative instruction fetch from an exception level for which all stages of translation are disabled. Specifically, the core is permitted to speculatively fetch from the 4KB region containing the current program counter 4K and next 4K. When translation is changed from enabled to disabled for the running exception level (SCTLR_ELn[M] changed from a value of 1 to 0), the Falkor core may errantly speculatively access memory locations outside of the 4KB region permitted by the architecture. The errant memory access may lead to one of the following unexpected behaviors. 1) A System Error Interrupt (SEI) being raised by the Falkor core due to the errant memory access attempting to access a region of memory that is protected by a slave-side memory protection unit. 2) Unpredictable device behavior due to a speculative read from device memory. This behavior may only occur if the instruction cache is disabled prior to or coincident with translation being changed from enabled to disabled. The conditions leading to this erratum will not occur when either of the following occur: 1) A higher exception level disables translation of a lower exception level (e.g. EL2 changing SCTLR_EL1[M] from a value of 1 to 0). 2) An exception level disabling its stage-1 translation if its stage-2 translation is enabled (e.g. EL1 changing SCTLR_EL1[M] from a value of 1 to 0 when HCR_EL2[VM] has a value of 1). To avoid the errant behavior, software must execute an ISB immediately prior to executing the MSR that will change SCTLR_ELn[M] from 1 to 0. Signed-off-by:
Shanker Donthineni <shankerd@codeaurora.org> Signed-off-by:
Will Deacon <will.deacon@arm.com> Cc: Timur Tabi <timur@codeaurora.org> Signed-off-by:
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Shanker Donthineni authored
commit c622cc01 upstream. Add cputype definition macros for Qualcomm Datacenter Technologies Falkor CPU in cputype.h. It's unfortunate that the first revision of the Falkor CPU used the wrong part number 0x800, got fixed in v2 chip with part number 0xC00, and would be used the same value for future revisions. Signed-off-by:
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Rasmus Villemoes authored
commit bc137dfd upstream. The first patch above (https://patchwork.kernel.org/patch/9970181/) makes the oops go away, but it just papers over the problem. The real problem is that the watchdog core clears WDOG_HW_RUNNING in watchdog_stop, and the gpio driver fails to set it in its stop function when it doesn't actually stop it. This means that the core doesn't know that it now has responsibility for petting the device, in turn causing the device to reset the system (I hadn't noticed this because the board I'm working on has that reset logic disabled). How about this (other drivers may of course have the same problem, I haven't checked). One might say that ->stop should return an error when the device can't be stopped, but OTOH this brings parity between a device without a ->stop method and a GPIO wd that has always-running set. IOW, I think ->stop should only return an error when an actual attempt to stop the hardware failed. From: Rasmus Villemoes <rasmus.villemoes@prevas.dk> The watchdog framework clears WDOG_HW_RUNNING before calling ->stop. If the driver is unable to stop the device, it is supposed to set that bit again so that the watchdog core takes care of sending heart-beats while the device is not open from user-space. Update the gpio_wdt driver to honour that contract (and get rid of the redundant clearing of WDOG_HW_RUNNING). Fixes: 3c10bbde ("watchdog: core: Clear WDOG_HW_RUNNING before calling the stop function") Signed-off-by:
Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
Wim Van Sebroeck <wim@iguana.be> Signed-off-by:
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Omar Sandoval authored
commit c6b9d9a3 upstream. The following cleanup commit: 50816c48 ("sched/wait: Standardize internal naming of wait-queue entries") ... unintentionally changed the behavior of add_wait_queue() from inserting the wait entry at the head of the wait queue to the tail of the wait queue. Beyond a negative performance impact this change in behavior theoretically also breaks wait queues which mix exclusive and non-exclusive waiters, as non-exclusive waiters will not be woken up if they are queued behind enough exclusive waiters. Signed-off-by:
Omar Sandoval <osandov@fb.com> Reviewed-by:
Jens Axboe <axboe@kernel.dk> Acked-by:
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Yang Shunyong authored
commit 66b3bd23 upstream. The type of arg passed to dmatest_callback is struct dmatest_done. It refers to test_done in struct dmatest_thread, not done_wait. Fixes: 6f6a23a2 ("dmaengine: dmatest: move callback wait ...") Signed-off-by:
Yang Shunyong <shunyong.yang@hxt-semitech.com> Acked-by:
Adam Wallis <awallis@codeaurora.org> Signed-off-by:
Vinod Koul <vinod.koul@intel.com> Signed-off-by:
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Andrew-sh Cheng authored
commit 6066998c upstream. mediatek projects will use mediate-cpufreq.c as cpufreq driver, instead of using cpufreq_dt.c Add mediatek related projects into cpufreq-dt blacklist Signed-off-by:
Andrew-sh Cheng <andrew-sh.cheng@mediatek.com> Acked-by:
Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
Sean Wang <sean.wang@mediatek.com> Signed-off-by:
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Aurelien Aptel authored
commit 97f4b727 upstream. also replaces memset()+kfree() by kzfree(). Signed-off-by:
Aurelien Aptel <aaptel@suse.com> Signed-off-by:
Steve French <smfrench@gmail.com> Reviewed-by:
Pavel Shilovsky <pshilov@microsoft.com> Signed-off-by:
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Daniel N Pettersson authored
commit 9aca7e45 upstream. Autonegotiation gives a security settings mismatch error if the SMB server selects an SMBv3 dialect that isn't SMB3.02. The exact error is "protocol revalidation - security settings mismatch". This can be tested using Samba v4.2 or by setting the global Samba setting max protocol = SMB3_00. The check that fails in smb3_validate_negotiate is the dialect verification of the negotiate info response. This is because it tries to verify against the protocol_id in the global smbdefault_values. The protocol_id in smbdefault_values is SMB3.02. In SMB2_negotiate the protocol_id in smbdefault_values isn't updated, it is global so it probably shouldn't be, but server->dialect is. This patch changes the check in smb3_validate_negotiate to use server->dialect instead of server->vals->protocol_id. The patch works with autonegotiate and when using a specific version in the vers mount option. Signed-off-by:
Daniel N Pettersson <danielnp@axis.com> Signed-off-by:
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Matthew Wilcox authored
commit f04a703c upstream. If cifs_zap_mapping() returned an error, we would return without putting the xid that we got earlier. Restructure cifs_file_strict_mmap() and cifs_file_mmap() to be more similar to each other and have a single point of return that always puts the xid. Signed-off-by:
Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by:
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Michal Suchanek authored
commit 1b689a95 upstream. Commit 6e032b35 ("powerpc/powernv: Check device-tree for RFI flush settings") uses u64 in asm/hvcall.h without including linux/types.h This breaks hvcall.h users that do not include the header themselves. Fixes: 6e032b35 ("powerpc/powernv: Check device-tree for RFI flush settings") Signed-off-by:
Michal Suchanek <msuchanek@suse.de> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au> Signed-off-by:
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Matt Redfearn authored
commit 24f8d233 upstream. Commit da2a68b3 ("watchdog: Enable COMPILE_TEST where possible") enabled building the Indy watchdog driver when COMPILE_TEST is enabled. However, the driver makes reference to symbols that are only defined for certain platforms are selected in the config. These platforms select SGI_HAS_INDYDOG. Without this, link time errors result, for example when building a MIPS allyesconfig. drivers/watchdog/indydog.o: In function `indydog_write': indydog.c:(.text+0x18): undefined reference to `sgimc' indydog.c:(.text+0x1c): undefined reference to `sgimc' drivers/watchdog/indydog.o: In function `indydog_start': indydog.c:(.text+0x54): undefined reference to `sgimc' indydog.c:(.text+0x58): undefined reference to `sgimc' drivers/watchdog/indydog.o: In function `indydog_stop': indydog.c:(.text+0xa4): undefined reference to `sgimc' drivers/watchdog/indydog.o:indydog.c:(.text+0xa8): more undefined references to `sgimc' follow make: *** [Makefile:1005: vmlinux] Error 1 Fix this by ensuring that CONFIG_INDIDOG can only be selected when the necessary dependent platform symbols are built in. Fixes: da2a68b3 ("watchdog: Enable COMPILE_TEST where possible") Signed-off-by:
Matt Redfearn <matt.redfearn@mips.com> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org> Suggested-by:
James Hogan <james.hogan@mips.com> Reviewed-by:
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- 13 Feb, 2018 22 commits
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Greg Kroah-Hartman authored
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Greg Kroah-Hartman authored
This reverts commit 67eb59b8. It's not needed in 4.14.y and only causes messy debugging messages, if anyone actually cares about these random debug messages in the first place (doubtful). Reported-by:
Kees Cook <keescook@google.com> Acked-by:
Borislav Petkov <bp@suse.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: riel@redhat.com Cc: ak@linux.intel.com Cc: peterz@infradead.org Cc: David Woodhouse <dwmw2@infradead.org> Cc: jikos@kernel.org Cc: luto@amacapital.net Cc: dave.hansen@intel.com Cc: torvalds@linux-foundation.org Cc: keescook@google.com Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: tim.c.chen@linux.intel.com Cc: gregkh@linux-foundation.org Cc: pjt@google.com Signed-off-by:
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Dan Carpenter authored
commit ca8dc694 upstream. We should set the error code if fc_remote_port_add() fails. Cc: <stable@vger.kernel.org> #v4.12+ Fixes: daf0cd44 ("scsi: storvsc: Add support for FC rport.") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by:
Cathy Avery <cavery@redhat.com> Acked-by:
K. Y. Srinivasan <kys@microsoft.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
Long Li <longli@microsoft.com>
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Andrew Morton authored
commit dc8635b7 upstream. gcc -fisolate-erroneous-paths-dereference can generate calls to abort() from modular code too. [arnd@arndb.de: drop duplicate exports of abort()] Link: http://lkml.kernel.org/r/20180102103311.706364-1-arnd@arndb.deReported-by:
Vineet Gupta <Vineet.Gupta1@synopsys.com> Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Alexey Brodkin <Alexey.Brodkin@synopsys.com> Cc: Russell King <rmk+kernel@armlinux.org.uk> Cc: Jose Abreu <Jose.Abreu@synopsys.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Cc: Evgeniy Didin <Evgeniy.Didin@synopsys.com> Signed-off-by:
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Sudip Mukherjee authored
commit 7c2c11b2 upstream. gcc toggle -fisolate-erroneous-paths-dereference (default at -O2 onwards) isolates faulty code paths such as null pointer access, divide by zero etc. If gcc port doesnt implement __builtin_trap, an abort() is generated which causes kernel link error. In this case, gcc is generating abort due to 'divide by zero' in lib/mpi/mpih-div.c. Currently 'frv' and 'arc' are failing. Previously other arch was also broken like m32r was fixed by commit d22e3d69 ("m32r: fix build failure"). Let's define this weak function which is common for all arch and fix the problem permanently. We can even remove the arch specific 'abort' after this is done. Link: http://lkml.kernel.org/r/1513118956-8718-1-git-send-email-sudipm.mukherjee@gmail.comSigned-off-by:
Sudip Mukherjee <sudipm.mukherjee@gmail.com> Cc: Alexey Brodkin <Alexey.Brodkin@synopsys.com> Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com> Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by:
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Robert Baronescu authored
commit 5c6ac1d4 upstream. In case buffer length is a multiple of PAGE_SIZE, the S/G table is incorrectly generated. Fix this by handling buflen = k * PAGE_SIZE separately. Signed-off-by:
Robert Baronescu <robert.baronescu@nxp.com> Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
Horia Geantă <horia.geanta@nxp.com> Signed-off-by:
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Jesse Chan authored
commit 5331aec1 upstream. This change resolves a new compile-time warning when built as a loadable module: WARNING: modpost: missing MODULE_LICENSE() in drivers/media/platform/soc_camera/soc_scale_crop.o see include/linux/module.h for more information This adds the license as "GPL", which matches the header of the file. MODULE_DESCRIPTION and MODULE_AUTHOR are also added. Signed-off-by:
Jesse Chan <jc@linux.com> Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by:
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Jesse Chan authored
commit ccbc1e38 upstream. This change resolves a new compile-time warning when built as a loadable module: WARNING: modpost: missing MODULE_LICENSE() in drivers/media/platform/mtk-vcodec/mtk-vcodec-common.o see include/linux/module.h for more information This adds the license as "GPL v2", which matches the header of the file. MODULE_DESCRIPTION is also added. Signed-off-by:
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Eric Dumazet authored
[ Upstream commit 4db428a7 ] reuseport_add_sock() needs to deal with attaching a socket having its own sk_reuseport_cb, after a prior setsockopt(SO_ATTACH_REUSEPORT_?BPF) Without this fix, not only a WARN_ONCE() was issued, but we were also leaking memory. Thanks to sysbot and Eric Biggers for providing us nice C repros. ------------[ cut here ]------------ socket already in reuseport group WARNING: CPU: 0 PID: 3496 at net/core/sock_reuseport.c:119 reuseport_add_sock+0x742/0x9b0 net/core/sock_reuseport.c:117 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 3496 Comm: syzkaller869503 Not tainted 4.15.0-rc6+ #245 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 panic+0x1e4/0x41c kernel/panic.c:183 __warn+0x1dc/0x200 kernel/panic.c:547 report_bug+0x211/0x2d0 lib/bug.c:184 fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:178 fixup_bug arch/x86/kernel/traps.c:247 [inline] do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315 invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:1079 Fixes: ef456144 ("soreuseport: define reuseport groups") Signed-off-by:
Craig Gallek <kraig@google.com> Signed-off-by:
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Martin KaFai Lau authored
[ Upstream commit 7ece54a6 ] If a sk_v6_rcv_saddr is !IPV6_ADDR_ANY and !IPV6_ADDR_MAPPED, it implicitly implies it is an ipv6only socket. However, in inet6_bind(), this addr_type checking and setting sk->sk_ipv6only to 1 are only done after sk->sk_prot->get_port(sk, snum) has been completed successfully. This inconsistency between sk_v6_rcv_saddr and sk_ipv6only confuses the 'get_port()'. In particular, when binding SO_REUSEPORT UDP sockets, udp_reuseport_add_sock(sk,...) is called. udp_reuseport_add_sock() checks "ipv6_only_sock(sk2) == ipv6_only_sock(sk)" before adding sk to sk2->sk_reuseport_cb. In this case, ipv6_only_sock(sk2) could be 1 while ipv6_only_sock(sk) is still 0 here. The end result is, reuseport_alloc(sk) is called instead of adding sk to the existing sk2->sk_reuseport_cb. It can be reproduced by binding two SO_REUSEPORT UDP sockets on an IPv6 address (!ANY and !MAPPED). Only one of the socket will receive packet. The fix is to set the implicit sk_ipv6only before calling get_port(). The original sk_ipv6only has to be saved such that it can be restored in case get_port() failed. The situation is similar to the inet_reset_saddr(sk) after get_port() has failed. Thanks to Calvin Owens <calvinowens@fb.com> who created an easy reproduction which leads to a fix. Fixes: e32ea7e7 ("soreuseport: fast reuseport UDP socket selection") Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Signed-off-by:
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Neal Cardwell authored
[ Upstream commit 3aff3b4b ] This commit fixes the pacing_gain to remain at BBR_UNIT (1.0) when using lt_bw and returning from the PROBE_RTT state to PROBE_BW. Previously, when using lt_bw, upon exiting PROBE_RTT and entering PROBE_BW the bbr_reset_probe_bw_mode() code could sometimes randomly end up with a cycle_idx of 0 and hence have bbr_advance_cycle_phase() set a pacing gain above 1.0. In such cases this would result in a pacing rate that is 1.25x higher than intended, potentially resulting in a high loss rate for a little while until we stop using the lt_bw a bit later. This commit is a stable candidate for kernels back as far as 4.9. Fixes: 0f8782ea ("tcp_bbr: add BBR congestion control") Signed-off-by:
Neal Cardwell <ncardwell@google.com> Signed-off-by:
Yuchung Cheng <ycheng@google.com> Signed-off-by:
Soheil Hassas Yeganeh <soheil@google.com> Reported-by:
Beyers Cronje <bcronje@gmail.com> Signed-off-by:
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Jiri Pirko authored
[ Upstream commit a83165f0 ] Currently, rocker user may experience following null pointer derefence bug: [ 3.062141] BUG: unable to handle kernel NULL pointer dereference at 00000000000000d0 [ 3.065163] IP: rocker_router_fib_event_work+0x36/0x110 [rocker] The problem is uninitialized rocker->wops pointer that is initialized only with the first initialized port. So move the port initialization before registering the fib events. Fixes: 936bd486 ("rocker: use FIB notifications instead of switchdev calls") Signed-off-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
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David Ahern authored
[ Upstream commit c76fe2d9 ] Unsolicited IPv6 neighbor advertisements should be sent after DAD completes. Update ndisc_send_unsol_na to skip tentative, non-optimistic addresses and have those sent by addrconf_dad_completed after DAD. Fixes: 4a6e3c5d ("net: ipv6: send unsolicited NA on admin up") Reported-by:
Vivek Venkatraman <vivek@cumulusnetworks.com> Signed-off-by:
David Ahern <dsahern@gmail.com> Signed-off-by:
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Roman Gushchin authored
[ Upstream commit edbe69ef ] This patch effectively reverts commit 9f1c2674 ("net: memcontrol: defer call to mem_cgroup_sk_alloc()"). Moving mem_cgroup_sk_alloc() to the inet_csk_accept() completely breaks memcg socket memory accounting, as packets received before memcg pointer initialization are not accounted and are causing refcounting underflow on socket release. Actually the free-after-use problem was fixed by commit c0576e39 ("net: call cgroup_sk_alloc() earlier in sk_clone_lock()") for the cgroup pointer. So, let's revert it and call mem_cgroup_sk_alloc() just before cgroup_sk_alloc(). This is safe, as we hold a reference to the socket we're cloning, and it holds a reference to the memcg. Also, let's drop BUG_ON(mem_cgroup_is_root()) check from mem_cgroup_sk_alloc(). I see no reasons why bumping the root memcg counter is a good reason to panic, and there are no realistic ways to hit it. Signed-off-by:
Roman Gushchin <guro@fb.com> Cc: Eric Dumazet <edumazet@google.com> Cc: David S. Miller <davem@davemloft.net> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Tejun Heo <tj@kernel.org> Signed-off-by:
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Jason Wang authored
[ Upstream commit 4cd87951 ] We don't stop device before reset owner, this means we could try to serve any virtqueue kick before reset dev->worker. This will result a warn since the work was pending at llist during owner resetting. Fix this by stopping device during owner reset. Reported-by: syzbot+eb17c6162478cc50632c@syzkaller.appspotmail.com Fixes: 3a4d5c94 ("vhost_net: a kernel-level virtio server") Signed-off-by:
Jason Wang <jasowang@redhat.com> Signed-off-by:
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Li RongQing authored
[ Upstream commit 9b42d55a ] socket can be disconnected and gets transformed back to a listening socket, if sk_frag.page is not released, which will be cloned into a new socket by sk_clone_lock, but the reference count of this page is increased, lead to a use after free or double free issue Signed-off-by:
Li RongQing <lirongqing@baidu.com> Cc: Eric Dumazet <edumazet@google.com> Signed-off-by:
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Chunhao Lin authored
[ Upstream commit 086ca23d ] Driver check the wrong register bit in rtl_ocp_tx_cond() that keep driver waiting until timeout. Fix this by waiting for the right register bit. Signed-off-by:
Chunhao Lin <hau@realtek.com> Signed-off-by:
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Kristian Evensen authored
[ Upstream commit c0b91a56 ] The Quectel EP06 is a Cat. 6 LTE modem. It uses the same interface as the EC20/EC25 for QMI, and requires the same "set DTR"-quirk to work. Signed-off-by:
Kristian Evensen <kristian.evensen@gmail.com> Acked-by:
Bjørn Mork <bjorn@mork.no> Signed-off-by:
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Junxiao Bi authored
[ Upstream commit 233ac389 ] The following soft lockup was caught. This is a deadlock caused by recusive locking. Process kworker/u40:1:28016 was holding spin lock "mbx->queue_lock" in qlcnic_83xx_mailbox_worker(), while a softirq came in and ask the same spin lock in qlcnic_83xx_enqueue_mbx_cmd(). This lock should be hold by disable bh.. [161846.962125] NMI watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/u40:1:28016] [161846.962367] Modules linked in: tun ocfs2 xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs xen_privcmd autofs4 ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm ocfs2_nodemanager ocfs2_stackglue configfs bnx2fc fcoe libfcoe libfc sunrpc 8021q mrp garp bridge stp llc bonding dm_round_robin dm_multipath iTCO_wdt iTCO_vendor_support pcspkr sb_edac edac_core i2c_i801 shpchp lpc_ich mfd_core ioatdma ipmi_devintf ipmi_si ipmi_msghandler sg ext4 jbd2 mbcache2 sr_mod cdrom sd_mod igb i2c_algo_bit i2c_core ahci libahci megaraid_sas ixgbe dca ptp pps_core vxlan udp_tunnel ip6_udp_tunnel qla2xxx scsi_transport_fc qlcnic crc32c_intel be2iscsi bnx2i cnic uio cxgb4i cxgb4 cxgb3i libcxgbi ipv6 cxgb3 mdio libiscsi_tcp qla4xxx iscsi_boot_sysfs libiscsi scsi_transport_iscsi dm_mirror dm_region_hash dm_log dm_mod [161846.962454] [161846.962460] CPU: 1 PID: 28016 Comm: kworker/u40:1 Not tainted 4.1.12-94.5.9.el6uek.x86_64 #2 [161846.962463] Hardware name: Oracle Corporation SUN SERVER X4-2L /ASSY,MB,X4-2L , BIOS 26050100 09/19/2017 [161846.962489] Workqueue: qlcnic_mailbox qlcnic_83xx_mailbox_worker [qlcnic] [161846.962493] task: ffff8801f2e34600 ti: ffff88004ca5c000 task.ti: ffff88004ca5c000 [161846.962496] RIP: e030:[<ffffffff810013aa>] [<ffffffff810013aa>] xen_hypercall_sched_op+0xa/0x20 [161846.962506] RSP: e02b:ffff880202e43388 EFLAGS: 00000206 [161846.962509] RAX: 0000000000000000 RBX: ffff8801f6996b70 RCX: ffffffff810013aa [161846.962511] RDX: ffff880202e433cc RSI: ffff880202e433b0 RDI: 0000000000000003 [161846.962513] RBP: ffff880202e433d0 R08: 0000000000000000 R09: ffff8801fe893200 [161846.962516] R10: ffff8801fe400538 R11: 0000000000000206 R12: ffff880202e4b000 [161846.962518] R13: 0000000000000050 R14: 0000000000000001 R15: 000000000000020d [161846.962528] FS: 0000000000000000(0000) GS:ffff880202e40000(0000) knlGS:ffff880202e40000 [161846.962531] CS: e033 DS: 0000 ES: 0000 CR0: 0000000080050033 [161846.962533] CR2: 0000000002612640 CR3: 00000001bb796000 CR4: 0000000000042660 [161846.962536] Stack: [161846.962538] ffff880202e43608 0000000000000000 ffffffff813f0442 ffff880202e433b0 [161846.962543] 0000000000000000 ffff880202e433cc ffffffff00000001 0000000000000000 [161846.962547] 00000009813f03d6 ffff880202e433e0 ffffffff813f0460 ffff880202e43440 [161846.962552] Call Trace: [161846.962555] <IRQ> [161846.962565] [<ffffffff813f0442>] ? xen_poll_irq_timeout+0x42/0x50 [161846.962570] [<ffffffff813f0460>] xen_poll_irq+0x10/0x20 [161846.962578] [<ffffffff81014222>] xen_lock_spinning+0xe2/0x110 [161846.962583] [<ffffffff81013f01>] __raw_callee_save_xen_lock_spinning+0x11/0x20 [161846.962592] [<ffffffff816e5c57>] ? _raw_spin_lock+0x57/0x80 [161846.962609] [<ffffffffa028acfc>] qlcnic_83xx_enqueue_mbx_cmd+0x7c/0xe0 [qlcnic] [161846.962623] [<ffffffffa028e008>] qlcnic_83xx_issue_cmd+0x58/0x210 [qlcnic] [161846.962636] [<ffffffffa028caf2>] qlcnic_83xx_sre_macaddr_change+0x162/0x1d0 [qlcnic] [161846.962649] [<ffffffffa028cb8b>] qlcnic_83xx_change_l2_filter+0x2b/0x30 [qlcnic] [161846.962657] [<ffffffff8160248b>] ? __skb_flow_dissect+0x18b/0x650 [161846.962670] [<ffffffffa02856e5>] qlcnic_send_filter+0x205/0x250 [qlcnic] [161846.962682] [<ffffffffa0285c77>] qlcnic_xmit_frame+0x547/0x7b0 [qlcnic] [161846.962691] [<ffffffff8160ac22>] xmit_one+0x82/0x1a0 [161846.962696] [<ffffffff8160ad90>] dev_hard_start_xmit+0x50/0xa0 [161846.962701] [<ffffffff81630112>] sch_direct_xmit+0x112/0x220 [161846.962706] [<ffffffff8160b80f>] __dev_queue_xmit+0x1df/0x5e0 [161846.962710] [<ffffffff8160bc33>] dev_queue_xmit_sk+0x13/0x20 [161846.962721] [<ffffffffa0575bd5>] bond_dev_queue_xmit+0x35/0x80 [bonding] [161846.962729] [<ffffffffa05769fb>] __bond_start_xmit+0x1cb/0x210 [bonding] [161846.962736] [<ffffffffa0576a71>] bond_start_xmit+0x31/0x60 [bonding] [161846.962740] [<ffffffff8160ac22>] xmit_one+0x82/0x1a0 [161846.962745] [<ffffffff8160ad90>] dev_hard_start_xmit+0x50/0xa0 [161846.962749] [<ffffffff8160bb1e>] __dev_queue_xmit+0x4ee/0x5e0 [161846.962754] [<ffffffff8160bc33>] dev_queue_xmit_sk+0x13/0x20 [161846.962760] [<ffffffffa05cfa72>] vlan_dev_hard_start_xmit+0xb2/0x150 [8021q] [161846.962764] [<ffffffff8160ac22>] xmit_one+0x82/0x1a0 [161846.962769] [<ffffffff8160ad90>] dev_hard_start_xmit+0x50/0xa0 [161846.962773] [<ffffffff8160bb1e>] __dev_queue_xmit+0x4ee/0x5e0 [161846.962777] [<ffffffff8160bc33>] dev_queue_xmit_sk+0x13/0x20 [161846.962789] [<ffffffffa05adf74>] br_dev_queue_push_xmit+0x54/0xa0 [bridge] [161846.962797] [<ffffffffa05ae4ff>] br_forward_finish+0x2f/0x90 [bridge] [161846.962807] [<ffffffff810b0dad>] ? ttwu_do_wakeup+0x1d/0x100 [161846.962811] [<ffffffff815f929b>] ? __alloc_skb+0x8b/0x1f0 [161846.962818] [<ffffffffa05ae04d>] __br_forward+0x8d/0x120 [bridge] [161846.962822] [<ffffffff815f613b>] ? __kmalloc_reserve+0x3b/0xa0 [161846.962829] [<ffffffff810be55e>] ? update_rq_runnable_avg+0xee/0x230 [161846.962836] [<ffffffffa05ae176>] br_forward+0x96/0xb0 [bridge] [161846.962845] [<ffffffffa05af85e>] br_handle_frame_finish+0x1ae/0x420 [bridge] [161846.962853] [<ffffffffa05afc4f>] br_handle_frame+0x17f/0x260 [bridge] [161846.962862] [<ffffffffa05afad0>] ? br_handle_frame_finish+0x420/0x420 [bridge] [161846.962867] [<ffffffff8160d057>] __netif_receive_skb_core+0x1f7/0x870 [161846.962872] [<ffffffff8160d6f2>] __netif_receive_skb+0x22/0x70 [161846.962877] [<ffffffff8160d913>] netif_receive_skb_internal+0x23/0x90 [161846.962884] [<ffffffffa07512ea>] ? xenvif_idx_release+0xea/0x100 [xen_netback] [161846.962889] [<ffffffff816e5a10>] ? _raw_spin_unlock_irqrestore+0x20/0x50 [161846.962893] [<ffffffff8160e624>] netif_receive_skb_sk+0x24/0x90 [161846.962899] [<ffffffffa075269a>] xenvif_tx_submit+0x2ca/0x3f0 [xen_netback] [161846.962906] [<ffffffffa0753f0c>] xenvif_tx_action+0x9c/0xd0 [xen_netback] [161846.962915] [<ffffffffa07567f5>] xenvif_poll+0x35/0x70 [xen_netback] [161846.962920] [<ffffffff8160e01b>] napi_poll+0xcb/0x1e0 [161846.962925] [<ffffffff8160e1c0>] net_rx_action+0x90/0x1c0 [161846.962931] [<ffffffff8108aaba>] __do_softirq+0x10a/0x350 [161846.962938] [<ffffffff8108ae75>] irq_exit+0x125/0x130 [161846.962943] [<ffffffff813f03a9>] xen_evtchn_do_upcall+0x39/0x50 [161846.962950] [<ffffffff816e7ffe>] xen_do_hypervisor_callback+0x1e/0x40 [161846.962952] <EOI> [161846.962959] [<ffffffff816e5c4a>] ? _raw_spin_lock+0x4a/0x80 [161846.962964] [<ffffffff816e5b1e>] ? _raw_spin_lock_irqsave+0x1e/0xa0 [161846.962978] [<ffffffffa028e279>] ? qlcnic_83xx_mailbox_worker+0xb9/0x2a0 [qlcnic] [161846.962991] [<ffffffff810a14e1>] ? process_one_work+0x151/0x4b0 [161846.962995] [<ffffffff8100c3f2>] ? check_events+0x12/0x20 [161846.963001] [<ffffffff810a1960>] ? worker_thread+0x120/0x480 [161846.963005] [<ffffffff816e187b>] ? __schedule+0x30b/0x890 [161846.963010] [<ffffffff810a1840>] ? process_one_work+0x4b0/0x4b0 [161846.963015] [<ffffffff810a1840>] ? process_one_work+0x4b0/0x4b0 [161846.963021] [<ffffffff810a6b3e>] ? kthread+0xce/0xf0 [161846.963025] [<ffffffff810a6a70>] ? kthread_freezable_should_stop+0x70/0x70 [161846.963031] [<ffffffff816e6522>] ? ret_from_fork+0x42/0x70 [161846.963035] [<ffffffff810a6a70>] ? kthread_freezable_should_stop+0x70/0x70 [161846.963037] Code: cc 51 41 53 b8 1c 00 00 00 0f 05 41 5b 59 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc Signed-off-by:
Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by:
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Eric Dumazet authored
[ Upstream commit e7aadb27 ] Newly added igmpv3_get_srcaddr() needs to be called under rcu lock. Timer callbacks do not ensure this locking. ============================= WARNING: suspicious RCU usage 4.15.0+ #200 Not tainted ----------------------------- ./include/linux/inetdevice.h:216 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 3 locks held by syzkaller616973/4074: #0: (&mm->mmap_sem){++++}, at: [<00000000bfce669e>] __do_page_fault+0x32d/0xc90 arch/x86/mm/fault.c:1355 #1: ((&im->timer)){+.-.}, at: [<00000000619d2f71>] lockdep_copy_map include/linux/lockdep.h:178 [inline] #1: ((&im->timer)){+.-.}, at: [<00000000619d2f71>] call_timer_fn+0x1c6/0x820 kernel/time/timer.c:1316 #2: (&(&im->lock)->rlock){+.-.}, at: [<000000005f833c5c>] spin_lock_bh include/linux/spinlock.h:315 [inline] #2: (&(&im->lock)->rlock){+.-.}, at: [<000000005f833c5c>] igmpv3_send_report+0x98/0x5b0 net/ipv4/igmp.c:600 stack backtrace: CPU: 0 PID: 4074 Comm: syzkaller616973 Not tainted 4.15.0+ #200 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <IRQ> __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4592 __in_dev_get_rcu include/linux/inetdevice.h:216 [inline] igmpv3_get_srcaddr net/ipv4/igmp.c:329 [inline] igmpv3_newpack+0xeef/0x12e0 net/ipv4/igmp.c:389 add_grhead.isra.27+0x235/0x300 net/ipv4/igmp.c:432 add_grec+0xbd3/0x1170 net/ipv4/igmp.c:565 igmpv3_send_report+0xd5/0x5b0 net/ipv4/igmp.c:605 igmp_send_report+0xc43/0x1050 net/ipv4/igmp.c:722 igmp_timer_expire+0x322/0x5c0 net/ipv4/igmp.c:831 call_timer_fn+0x228/0x820 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7ee/0xb70 kernel/time/timer.c:1666 run_timer_softirq+0x4c/0x70 kernel/time/timer.c:1692 __do_softirq+0x2d7/0xb85 kernel/softirq.c:285 invoke_softirq kernel/softirq.c:365 [inline] irq_exit+0x1cc/0x200 kernel/softirq.c:405 exiting_irq arch/x86/include/asm/apic.h:541 [inline] smp_apic_timer_interrupt+0x16b/0x700 arch/x86/kernel/apic/apic.c:1052 apic_timer_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:938 Fixes: a46182b0 ("net: igmp: Use correct source address on IGMPv3 reports") Signed-off-by:
syzbot <syzkaller@googlegroups.com> Signed-off-by:
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Nikolay Aleksandrov authored
[ Upstream commit 4adfa79f ] When we dump the ip6mr mfc entries via proc, we initialize an iterator with the table to dump but we don't clear the cache pointer which might be initialized from a prior read on the same descriptor that ended. This can result in lock imbalance (an unnecessary unlock) leading to other crashes and hangs. Clear the cache pointer like ipmr does to fix the issue. Thanks for the reliable reproducer. Here's syzbot's trace: WARNING: bad unlock balance detected! 4.15.0-rc3+ #128 Not tainted syzkaller971460/3195 is trying to release lock (mrt_lock) at: [<000000006898068d>] ipmr_mfc_seq_stop+0xe1/0x130 net/ipv6/ip6mr.c:553 but there are no more locks to release! other info that might help us debug this: 1 lock held by syzkaller971460/3195: #0: (&p->lock){+.+.}, at: [<00000000744a6565>] seq_read+0xd5/0x13d0 fs/seq_file.c:165 stack backtrace: CPU: 1 PID: 3195 Comm: syzkaller971460 Not tainted 4.15.0-rc3+ #128 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 print_unlock_imbalance_bug+0x12f/0x140 kernel/locking/lockdep.c:3561 __lock_release kernel/locking/lockdep.c:3775 [inline] lock_release+0x5f9/0xda0 kernel/locking/lockdep.c:4023 __raw_read_unlock include/linux/rwlock_api_smp.h:225 [inline] _raw_read_unlock+0x1a/0x30 kernel/locking/spinlock.c:255 ipmr_mfc_seq_stop+0xe1/0x130 net/ipv6/ip6mr.c:553 traverse+0x3bc/0xa00 fs/seq_file.c:135 seq_read+0x96a/0x13d0 fs/seq_file.c:189 proc_reg_read+0xef/0x170 fs/proc/inode.c:217 do_loop_readv_writev fs/read_write.c:673 [inline] do_iter_read+0x3db/0x5b0 fs/read_write.c:897 compat_readv+0x1bf/0x270 fs/read_write.c:1140 do_compat_preadv64+0xdc/0x100 fs/read_write.c:1189 C_SYSC_preadv fs/read_write.c:1209 [inline] compat_SyS_preadv+0x3b/0x50 fs/read_write.c:1203 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline] do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:125 RIP: 0023:0xf7f73c79 RSP: 002b:00000000e574a15c EFLAGS: 00000292 ORIG_RAX: 000000000000014d RAX: ffffffffffffffda RBX: 000000000000000f RCX: 0000000020a3afb0 RDX: 0000000000000001 RSI: 0000000000000067 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 BUG: sleeping function called from invalid context at lib/usercopy.c:25 in_atomic(): 1, irqs_disabled(): 0, pid: 3195, name: syzkaller971460 INFO: lockdep is turned off. CPU: 1 PID: 3195 Comm: syzkaller971460 Not tainted 4.15.0-rc3+ #128 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 ___might_sleep+0x2b2/0x470 kernel/sched/core.c:6060 __might_sleep+0x95/0x190 kernel/sched/core.c:6013 __might_fault+0xab/0x1d0 mm/memory.c:4525 _copy_to_user+0x2c/0xc0 lib/usercopy.c:25 copy_to_user include/linux/uaccess.h:155 [inline] seq_read+0xcb4/0x13d0 fs/seq_file.c:279 proc_reg_read+0xef/0x170 fs/proc/inode.c:217 do_loop_readv_writev fs/read_write.c:673 [inline] do_iter_read+0x3db/0x5b0 fs/read_write.c:897 compat_readv+0x1bf/0x270 fs/read_write.c:1140 do_compat_preadv64+0xdc/0x100 fs/read_write.c:1189 C_SYSC_preadv fs/read_write.c:1209 [inline] compat_SyS_preadv+0x3b/0x50 fs/read_write.c:1203 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline] do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:125 RIP: 0023:0xf7f73c79 RSP: 002b:00000000e574a15c EFLAGS: 00000292 ORIG_RAX: 000000000000014d RAX: ffffffffffffffda RBX: 000000000000000f RCX: 0000000020a3afb0 RDX: 0000000000000001 RSI: 0000000000000067 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 WARNING: CPU: 1 PID: 3195 at lib/usercopy.c:26 _copy_to_user+0xb5/0xc0 lib/usercopy.c:26 Reported-by:
syzbot <bot+eceb3204562c41a438fa1f2335e0fe4f6886d669@syzkaller.appspotmail.com> Signed-off-by:
Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by:
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Masahiro Yamada authored
commit af60e207 upstream. If build fails during (bin)rpm-pkg, the spec file is not cleaned by anyone until the next successful build of the package. We do not have to immediately delete the spec file in case somebody may want to take a look at it. Instead, make them ignored by git, and cleaned up by make mrproper. Signed-off-by:
Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by:
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