syzbot


possible deadlock in __generic_file_fsync
Status: upstream: reported C repro on 2018/10/16 14:25
Reported-by: syzbot+5cd33f0e6abe2bb3e397@syzkaller.appspotmail.com
First crash: 337d, last: 197d
Bisection: introduced by (bisect log):

commit 9022ada8ab6f1f1a932a3c93815061042e6548a5
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri Aug 24 20:16:36 2018 +0000

  Merge branch 'for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Tree: upstream
Crash: possible deadlock in flush_workqueue (log)
Repro: C syz .config
Bisection: fixed by (bisect log):

commit f1770e3ca4ec10ce43825de2f855a1831c711195
Author: Jiri Olsa <jolsa@kernel.org>
Date: Fri Oct 12 11:20:16 2018 +0000

  tools power x86_energy_perf_policy: Override CFLAGS assignments and add LDFLAGS to build command

Tree: upstream
similar bugs (3):
Kernel Title Repro Bisected Count Last Reported Patched Status
linux-4.19 possible deadlock in __generic_file_fsync syz 26 2d12h 96d 0/1 upstream: reported syz repro on 2019/06/13 18:12
linux-4.14 possible deadlock in __generic_file_fsync 33 10d 90d 0/1 upstream: reported on 2019/06/19 20:20
android-414 possible deadlock in __generic_file_fsync syz 194 4d16h 159d 0/1 public: reported syz repro on 2019/04/12 00:01

Sample crash report:

All crashes (80):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-root 2018/10/20 16:12 upstream 270b77a0 ecb386fe .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2018/11/21 09:49 upstream c8ce94b8 5d9a3924 .config log report syz C linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2018/10/19 02:09 upstream fa520c47 9aba67b5 .config log report syz linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2018/10/30 17:04 upstream 11743c56 8dbb755a .config log report syz linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2018/10/30 07:25 upstream 4b427452 2f1090da .config log report syz linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2018/10/21 13:16 upstream 23469de6 ecb386fe .config log report syz linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2018/10/19 03:37 upstream fa520c47 9aba67b5 .config log report syz linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2018/10/20 11:42 linux-next 8c60c36d ecb386fe .config log report syz linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2018/10/19 04:33 linux-next 9bab6434 9aba67b5 .config log report syz linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/03/05 07:54 upstream cd2a3bf0 bb91cf81 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/03/02 19:47 upstream c93d9218 1c0e457a .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2019/03/01 02:57 upstream 7d762d69 09aeeba4 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/02/27 23:18 upstream 7d762d69 34ec456b .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/02/27 10:33 upstream 7d762d69 083cfd0e .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2019/02/26 22:29 upstream 7d762d69 f2468c12 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2019/02/23 10:58 upstream cb268d80 18107ce0 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2019/02/21 23:28 upstream 8a61716f 7ff74a98 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/02/20 21:41 upstream 2137397c c95f0707 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2019/02/20 01:48 upstream 40e196a9 4df543c9 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2019/02/17 14:53 upstream 64c0133e 3e98cc30 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/02/16 16:44 upstream 5ded5871 f42dee6d .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2019/02/15 21:34 upstream cb5b020a f6f233c0 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/02/14 16:35 upstream 1f947a7a 76dd003f .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2019/01/04 14:21 upstream 96d4f267 7da23925 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2019/01/03 07:14 upstream 85f78456 06a2b89f .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2018/12/30 08:39 upstream 19530313 35e3f847 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2018/12/30 01:05 upstream 19530313 35e3f847 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2018/12/28 23:54 upstream 00c569b5 e33ad0f1 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2018/12/26 14:26 upstream 5694cecd 8a41a0ad .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2018/12/24 02:44 upstream 3c730b10 e3bd7ab8 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2018/12/16 12:36 upstream 6531e115 def91db3 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2018/12/14 08:21 upstream 65e08c5e fe7127be .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2018/12/09 21:05 upstream 0844895a 979179d6 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2018/12/08 15:30 upstream 5f179793 60562a1d .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2018/12/06 09:49 upstream d0897090 764b42c4 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2018/12/04 23:33 upstream 0072a0c1 f162ad97 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2018/12/02 22:01 upstream 6a512726 e0d8c853 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2018/11/30 01:11 upstream f92a2ebb 66071e27 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2018/11/28 05:25 upstream ef78e5ec 4b6d14f2 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2018/11/27 13:31 upstream ef78e5ec 4b6d14f2 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2018/11/26 11:21 upstream 2e6e902d ac912200 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2018/11/26 05:42 upstream d6d460b8 3d3ec907 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2018/11/25 22:34 upstream d6d460b8 3d3ec907 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2018/11/25 08:29 upstream e195ca6c 3d3ec907 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2018/11/22 20:41 upstream edeca3a7 87815d9d .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2018/11/21 10:11 upstream c8ce94b8 5d9a3924 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2018/11/21 07:28 upstream c8ce94b8 5d9a3924 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2018/11/20 17:58 upstream 06e68fed 9aca6b52 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2018/11/20 05:48 upstream f2ce1065 9bc2a903 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2018/11/12 20:56 upstream ccda4af0 74dbb806 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2018/11/09 05:23 upstream 24ccea7e 8fd01d3a .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2018/11/06 05:46 upstream 163c8d54 8bd6bd63 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2018/10/31 00:00 upstream 11743c56 8dbb755a .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2018/10/25 21:25 upstream bd6bf7c1 a8292de9 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root 2018/10/22 00:42 upstream 467e050e ecb386fe .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2018/10/20 22:45 upstream b0d04fb5 ecb386fe .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root 2018/10/19 00:21 upstream fa520c47 9aba67b5 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-smack-root 2018/10/16 22:23 upstream b955a910 1ba7fd7e .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2018/10/16 11:57 linux-next 6d5d8241 8cd30605 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2019/02/28 10:41 linux-next 42fd8df9 09aeeba4 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2019/02/26 07:52 linux-next 2b46440e 8022bafd .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2019/02/25 02:09 linux-next 94a47529 7a06e792 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2019/02/22 05:21 linux-next 550f4769 7ff74a98 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2019/02/15 02:14 linux-next b3418f8b 76dd003f .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2018/11/29 17:05 linux-next 442b8cea 4b6d14f2 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2018/11/25 20:17 linux-next 442b8cea 3d3ec907 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2018/11/21 06:06 linux-next 442b8cea 5d9a3924 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2018/11/17 13:20 linux-next 442b8cea b08ee62a .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2018/11/04 20:03 linux-next 25e9471b 8bd6bd63 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2018/11/04 03:17 linux-next 25e9471b 8bd6bd63 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2018/11/01 23:17 linux-next 4db9d11b 1f38e9ae .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2018/10/30 16:14 linux-next 6201f31a 8dbb755a .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2018/10/27 17:27 linux-next 8c60c36d 8efba39a .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2018/10/23 23:27 linux-next 8c60c36d a8292de9 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2018/10/23 02:38 linux-next 8c60c36d ecb386fe .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-linux-next-kasan-gce-root 2018/10/20 05:24 linux-next 8c60c36d ecb386fe .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk