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🐞 Open [704] 🐞 Fixed [181] 🐞 Invalid [624] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | possible deadlock in __might_fault | C | 8978 | 1780d | 1796d | 4/24 | fixed on 2018/03/23 18:14 | ||
linux-4.19 | possible deadlock in __might_fault | C | done | 385 | 1136d | 1387d | 1/1 | fixed on 2020/01/18 20:51 | |
android-44 | possible deadlock in __might_fault | C | 6745 | 1770d | 1797d | 2/2 | fixed on 2018/04/24 18:02 | ||
android-49 | possible deadlock in __might_fault | C | 10264 | 1775d | 1797d | 3/3 | fixed on 2018/04/24 17:23 | ||
android-414 | possible deadlock in __might_fault | 136 | 1159d | 1386d | 0/1 | auto-closed as invalid on 2020/03/25 09:38 | |||
upstream | possible deadlock in __might_fault (3) | C | 10722 | 1140d | 1611d | 0/24 | closed as dup on 2018/09/16 01:51 | ||
upstream | possible deadlock in __might_fault (2) | C | 20 | 1733d | 1736d | 9/24 | fixed on 2018/07/09 18:05 |
audit: type=1400 audit(1571664420.365:37): avc: denied { map } for pid=7053 comm="syz-executor788" path="/dev/usbmon0" dev="devtmpfs" ino=14731 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:usbmon_device_t:s0 tclass=chr_file permissive=1 ====================================================== WARNING: possible circular locking dependency detected 4.14.150 #0 Not tainted ------------------------------------------------------ syz-executor788/7064 is trying to acquire lock: (&mm->mmap_sem){++++}, at: [<ffffffff817c00b0>] __might_fault+0xe0/0x1d0 mm/memory.c:4583 but task is already holding lock: (&rp->fetch_lock){+.+.}, at: [<ffffffff83f77c97>] mon_bin_fetch+0x37/0x2e0 drivers/usb/mon/mon_bin.c:909 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&rp->fetch_lock){+.+.}: lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 mon_bin_vma_fault+0x6f/0x280 drivers/usb/mon/mon_bin.c:1236 __do_fault+0x104/0x390 mm/memory.c:3223 do_cow_fault mm/memory.c:3662 [inline] do_fault mm/memory.c:3761 [inline] handle_pte_fault mm/memory.c:3989 [inline] __handle_mm_fault+0xde1/0x3470 mm/memory.c:4113 handle_mm_fault+0x293/0x7c0 mm/memory.c:4150 __do_page_fault+0x4c1/0xb80 arch/x86/mm/fault.c:1420 do_page_fault+0x71/0x511 arch/x86/mm/fault.c:1495 page_fault+0x45/0x50 arch/x86/entry/entry_64.S:1122 -> #0 (&mm->mmap_sem){++++}: check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __might_fault mm/memory.c:4584 [inline] __might_fault+0x143/0x1d0 mm/memory.c:4569 mon_bin_fetch+0x212/0x2e0 drivers/usb/mon/mon_bin.c:928 mon_bin_ioctl+0x1c5/0xb50 drivers/usb/mon/mon_bin.c:1090 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&rp->fetch_lock); lock(&mm->mmap_sem); lock(&rp->fetch_lock); lock(&mm->mmap_sem); *** DEADLOCK *** 1 lock held by syz-executor788/7064: #0: (&rp->fetch_lock){+.+.}, at: [<ffffffff83f77c97>] mon_bin_fetch+0x37/0x2e0 drivers/usb/mon/mon_bin.c:909 stack backtrace: CPU: 1 PID: 7064 Comm: syz-executor788 Not tainted 4.14.150 #0 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+0x138/0x197 lib/dump_stack.c:53 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __might_fault mm/memory.c:4584 [inline] __might_fault+0x143/0x1d0 mm/memory.c:4569 mon_bin_fetch+0x212/0x2e0 drivers/usb/mon/mon_bin.c:928 mon_bin_ioctl+0x1c5/0xb50 drivers/usb/mon/mon_bin.c:1090 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x44b0a9 RSP: 002b:00007f09f146fce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000006ddc38 RCX: 000000000044b0a9 RDX: 0000000020000140 RSI: 00000000c0109207 RDI: 0000000000000003 RBP: 00000000006ddc30 R08: 00007f09f1470700 R09: 0000000000000000 R10: 00007f09f1470700 R11: 0000000000000246 R12: 00000000006ddc3c R13: 00007ffe757f2fef R14: 00007f09f14709c0 R15: 000000000000002d IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready syz-executor788 (7053) used greatest stack depth: 24624 bytes left
Manager | Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
ci2-linux-4-14 | 2019/10/21 13:30 | linux-4.14.y | b98aebd29824 | b24d2b8a | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2019/10/21 09:47 | linux-4.14.y | b98aebd29824 | 8c88c9c1 | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2019/10/21 08:54 | linux-4.14.y | b98aebd29824 | 8c88c9c1 | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2019/10/21 07:46 | linux-4.14.y | b98aebd29824 | 8c88c9c1 | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2019/10/21 07:27 | linux-4.14.y | b98aebd29824 | 8c88c9c1 | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2019/10/21 06:43 | linux-4.14.y | b98aebd29824 | 8c88c9c1 | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2019/06/16 12:34 | linux-4.14.y | a74d0e937a3a | 442206d7 | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2019/04/22 06:01 | linux-4.14.y | 68d7a45eec10 | b0e8efcb | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2019/04/22 01:28 | linux-4.14.y | 68d7a45eec10 | b0e8efcb | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2019/04/21 22:00 | linux-4.14.y | 68d7a45eec10 | b0e8efcb | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2019/04/20 06:01 | linux-4.14.y | 58b454ebf81e | b0e8efcb | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2019/04/19 08:51 | linux-4.14.y | 58b454ebf81e | b0e8efcb | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2019/04/16 19:52 | linux-4.14.y | 1ec8f1f0bffe | 505ab413 | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2019/04/13 11:08 | linux-4.14.y | 1ec8f1f0bffe | c402d8f1 | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2019/10/22 06:05 | linux-4.14.y | b98aebd29824 | c59a7cd8 | .config | console log | report | syz | ||||
ci2-linux-4-14 | 2019/12/09 12:46 | linux-4.14.y | a844dc4c5442 | 1508f453 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/12/06 09:27 | linux-4.14.y | a844dc4c5442 | 98b4ef2d | .config | console log | report | |||||
ci2-linux-4-14 | 2019/12/05 12:09 | linux-4.14.y | fbc5fe7a54d0 | 9fd5a512 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/12/05 05:59 | linux-4.14.y | fbc5fe7a54d0 | b2088328 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/12/03 21:01 | linux-4.14.y | fbc5fe7a54d0 | 0ecb9746 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/30 02:35 | linux-4.14.y | 43598c571e7e | 3a75be00 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/29 22:38 | linux-4.14.y | 43598c571e7e | 4f7e1d0f | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/29 08:31 | linux-4.14.y | 43598c571e7e | 76357d6f | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/28 10:14 | linux-4.14.y | 43598c571e7e | 97264cb1 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/27 16:27 | linux-4.14.y | 43598c571e7e | 0d63f89c | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/26 21:46 | linux-4.14.y | 43598c571e7e | 1048481f | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/26 05:53 | linux-4.14.y | 43598c571e7e | 598ca6c8 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/26 00:54 | linux-4.14.y | 43598c571e7e | 598ca6c8 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/24 21:22 | linux-4.14.y | 43598c571e7e | 598ca6c8 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/23 10:47 | linux-4.14.y | f56f3d0e65ad | 598ca6c8 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/22 11:01 | linux-4.14.y | f56f3d0e65ad | 598ca6c8 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/21 19:28 | linux-4.14.y | f56f3d0e65ad | 8098ea0f | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/20 13:28 | linux-4.14.y | 775d01b65b5d | 432c7650 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/19 09:16 | linux-4.14.y | 775d01b65b5d | 432c7650 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/19 06:00 | linux-4.14.y | 775d01b65b5d | d5696d51 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/18 16:37 | linux-4.14.y | 775d01b65b5d | d5696d51 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/17 09:57 | linux-4.14.y | 775d01b65b5d | d5696d51 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/17 07:50 | linux-4.14.y | 775d01b65b5d | cdac920b | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/12 16:50 | linux-4.14.y | 4762bcd451a9 | 048f2d49 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/11 14:03 | linux-4.14.y | c9fda4f22428 | dc438b91 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/11 12:27 | linux-4.14.y | c9fda4f22428 | dc438b91 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/11/11 00:21 | linux-4.14.y | c9fda4f22428 | dc438b91 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/10/23 02:31 | linux-4.14.y | b98aebd29824 | d0686497 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/10/21 02:42 | linux-4.14.y | b98aebd29824 | 8c88c9c1 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/10/20 19:38 | linux-4.14.y | b98aebd29824 | 8c88c9c1 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/10/20 10:16 | linux-4.14.y | b98aebd29824 | 8c88c9c1 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/10/19 23:55 | linux-4.14.y | b98aebd29824 | 8c88c9c1 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/10/17 16:38 | linux-4.14.y | e132c8d7b58d | 8c88c9c1 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/10/17 03:41 | linux-4.14.y | e132c8d7b58d | 8c88c9c1 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/10/13 05:40 | linux-4.14.y | e132c8d7b58d | 426631dd | .config | console log | report | |||||
ci2-linux-4-14 | 2019/10/11 09:05 | linux-4.14.y | 42327896f194 | 1a3bad90 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/10/07 05:37 | linux-4.14.y | db1892238c55 | f3f7d9c8 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/10/06 22:35 | linux-4.14.y | db1892238c55 | f3f7d9c8 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/10/06 09:04 | linux-4.14.y | db1892238c55 | f3f7d9c8 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/10/05 12:27 | linux-4.14.y | db1892238c55 | f3f7d9c8 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/10/04 16:54 | linux-4.14.y | f6e27dbb1afa | c86336cf | .config | console log | report | |||||
ci2-linux-4-14 | 2019/10/04 15:12 | linux-4.14.y | f6e27dbb1afa | c86336cf | .config | console log | report | |||||
ci2-linux-4-14 | 2019/10/03 22:44 | linux-4.14.y | f6e27dbb1afa | fc17ba49 | .config | console log | report | |||||
ci2-linux-4-14 | 2019/04/13 03:10 | linux-4.14.y | 1ec8f1f0bffe | c402d8f1 | .config | console log | report |