syzbot


possible deadlock in console_trylock_spinning
Status: upstream: reported C repro on 2019/06/20 13:17
Reported-by: syzbot+fc1da0f1a577d15b64fc@syzkaller.appspotmail.com
First crash: 777d, last: 3d01h

Cause bisection: introduced by (bisect log) :
commit e80b18599a39a625bc8b2e39ba3004a62f78805a
Author: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Date: Fri Apr 12 11:04:54 2019 +0000

  tomoyo: Add a kernel config option for fuzzing testing.

Crash: possible deadlock in console_unlock (log)
Repro: C syz .config

Fix bisection: the fix commit could be any of (bisect log):
  6b643a07a7e4 x86/entry, ubsan, objtool: Whitelist __ubsan_handle_*()
  8e8bb06d199a x86/entry, bug: Comment the instrumentation_begin() usage for WARN()
  14d3b376b6c3 x86/entry, cpumask: Provide non-instrumented variant of cpu_is_offline()
  33aea07f30c2 compiler_attributes.h: Support no_sanitize_undefined check with GCC 4
  5144f8a8dfd7 compiler_types.h: Add __no_sanitize_{address,undefined} to noinstr
  acf7b0bf7dcf kasan: Fix required compiler version
  734d099ba644 objtool: Don't consider vmlinux a C-file
  7b861a53e46b kasan: Bump required compiler version
  5ddbc4082e10 x86, kcsan: Add __no_kcsan to noinstr
  e3a9e681adb7 x86/entry: Fixup bad_iret vs noinstr
  c7aadc09321d x86/entry: Increase entry_stack size to a full page
  e79302ae8c8c kcsan: Remove __no_kcsan_or_inline
  145a773aef83 x86/entry: Fix #UD vs WARN more
  e82587336695 x86, kcsan: Remove __no_kcsan_or_inline usage
  2c92d787cc9f Merge branch 'linus' into x86/entry, to resolve conflicts

Sample crash report:

Crashes (150):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2019/06/22 13:54 upstream abf02e2964b3 34bf9440 .config log report syz C
ci-upstream-kasan-gce-smack-root 2021/08/02 14:40 upstream c500bee1c5b2 6c236867 .config log report info possible deadlock in console_trylock_spinning
ci-upstream-kasan-gce-smack-root 2021/04/22 02:07 upstream 16fc44d6387e 2bc8999a .config log report info possible deadlock in console_trylock_spinning
ci-upstream-kasan-gce-smack-root 2021/04/11 14:48 upstream 52e44129fba5 bfeda1b1 .config log report info possible deadlock in console_trylock_spinning
ci-upstream-kasan-gce-smack-root 2021/04/06 11:11 upstream 0a50438c8436 6a81331a .config log report info possible deadlock in console_trylock_spinning
ci-upstream-kasan-gce-smack-root 2021/03/27 12:52 upstream 0f4498cef9f5 a8529b82 .config log report info possible deadlock in console_trylock_spinning
ci-upstream-kasan-gce-smack-root 2021/03/24 10:06 upstream 7acac4b3196c e613994b .config log report info possible deadlock in console_trylock_spinning
ci-upstream-kasan-gce-smack-root 2021/02/18 12:55 upstream f40ddce88593 14052202 .config log report info possible deadlock in console_trylock_spinning
ci-upstream-kasan-gce-smack-root 2021/02/13 08:19 upstream dcc0b49040c7 98682e5e .config log report info possible deadlock in console_trylock_spinning
ci-upstream-kasan-gce-smack-root 2021/01/23 18:37 upstream fe75a21824e7 52e37319 .config log report info possible deadlock in console_trylock_spinning
ci-upstream-kasan-gce-smack-root 2020/11/17 06:55 upstream 9c87c9f41245 1bf9a662 .config log report info
ci-upstream-kasan-gce-smack-root 2020/09/12 16:49 upstream 729e3d091984 ce441f06 .config log report
ci-upstream-kasan-gce-smack-root 2020/09/09 05:47 upstream 6f6a73c8b715 abf9ba4f .config log report
ci-upstream-kasan-gce-smack-root 2020/08/27 10:43 upstream 15bc20c6af4c 816e0689 .config log report
ci-upstream-kasan-gce-smack-root 2020/08/25 21:46 upstream abb3438d69fb 344da168 .config log report
ci-upstream-kasan-gce-smack-root 2020/08/21 07:36 upstream da2968ff879b 1d75fe45 .config log report
ci-upstream-kasan-gce-smack-root 2020/08/19 23:34 upstream 18445bf405cb 94b45706 .config log report
ci-upstream-kasan-gce-smack-root 2020/08/19 12:44 upstream 18445bf405cb e1c29030 .config log report
ci-upstream-kasan-gce-smack-root 2020/08/15 21:05 upstream c9c9735c46f5 424dd8e7 .config log report
ci-upstream-kasan-gce-smack-root 2020/08/03 08:07 upstream 5a30a78924ec 196277c4 .config log report
ci-upstream-kasan-gce-smack-root 2020/07/31 09:43 upstream 83bdc7275e62 8df85ed9 .config log report
ci-upstream-kasan-gce-smack-root 2020/07/26 17:29 upstream 04300d66f0a0 51265195 .config log report
ci-upstream-kasan-gce-smack-root 2020/07/19 18:19 upstream f932d58abc38 9c812472 .config log report
ci-upstream-kasan-gce-smack-root 2020/07/15 19:31 upstream e9919e11e219 f3bec699 .config log report
ci-upstream-kasan-gce-smack-root 2020/07/13 09:27 upstream 4437dd6e8f71 9ebcc5b1 .config log report
ci-upstream-kasan-gce-smack-root 2020/07/08 05:39 upstream 7cc2a8ea1048 51095195 .config log report
ci-upstream-kasan-gce-smack-root 2020/07/08 03:47 upstream 7cc2a8ea1048 51095195 .config log report
ci-upstream-kasan-gce-smack-root 2020/06/28 09:05 upstream 1590a2e1c681 ffec44b5 .config log report
ci-upstream-kasan-gce-smack-root 2020/06/24 22:00 upstream 7ae77150d94d 54566aff .config log report
ci-upstream-kasan-gce-smack-root 2020/06/17 19:24 upstream 7ae77150d94d b9f3810b .config log report
ci-upstream-kasan-gce-smack-root 2020/06/16 19:09 upstream 7ae77150d94d 559fbe2d .config log report
ci-upstream-kasan-gce-smack-root 2020/06/12 07:30 upstream 7ae77150d94d 58802067 .config log report
ci-upstream-kasan-gce-smack-root 2020/06/11 18:08 upstream 7ae77150d94d 3ab7a05a .config log report
ci-upstream-kasan-gce-smack-root 2020/06/10 23:27 upstream 7ae77150d94d a6f7998d .config log report
ci-upstream-kasan-gce-smack-root 2020/06/07 21:16 upstream 7ae77150d94d 2c2b926c .config log report
ci-upstream-kasan-gce-smack-root 2020/06/05 02:35 upstream acf25aa66371 6720fdef .config log report
ci-upstream-kasan-gce-smack-root 2020/06/03 19:23 upstream d6f9469a03d8 a5ce5de0 .config log report
ci-upstream-kasan-gce-smack-root 2020/05/31 06:35 upstream ffeb595d8481 6f3e1c7c .config log report
ci-upstream-kasan-gce-smack-root 2020/05/30 10:34 upstream 86852175b016 954bd312 .config log report
ci-upstream-kasan-gce-smack-root 2020/05/29 08:06 upstream 75caf310d16c d19ed305 .config log report
ci-upstream-kasan-gce-smack-root 2020/05/13 13:50 upstream 24085f70a6e1 9a6d42fb .config log report
ci-upstream-kasan-gce-smack-root 2020/05/12 05:02 upstream 152036d1379f 9eb09c40 .config log report
ci-upstream-kasan-gce-smack-root 2020/05/10 17:57 upstream e99332e7b4cd 8742a2b9 .config log report
ci-upstream-kasan-gce-smack-root 2020/05/07 21:29 upstream a811c1fa0a02 98cbd87b .config log report
ci-upstream-kasan-gce-smack-root 2020/05/05 00:01 upstream 9851a0dee7c2 9941337c .config log report
ci-upstream-kasan-gce-smack-root 2020/05/04 03:16 upstream 262f7a6b8317 58ae5e18 .config log report
ci-upstream-kasan-gce-smack-root 2020/04/27 15:18 upstream 6a8b55ed4056 0ce7569e .config log report
ci-upstream-kasan-gce-smack-root 2020/04/22 03:02 upstream 189522da8b3a 2e44d63e .config log report
ci-upstream-kasan-gce-smack-root 2020/04/17 16:12 upstream 7a56db0299f9 18397578 .config log report
ci-upstream-kasan-gce-smack-root 2020/04/12 02:10 upstream 5b8b9d0c6d0e a8c6a3f8 .config log report
ci-upstream-kasan-gce-smack-root 2020/04/10 20:06 upstream c0cc271173b2 a8c6a3f8 .config log report
ci-upstream-kasan-gce-smack-root 2019/06/19 18:57 upstream bed3c0d84e7e 34bf9440 .config log report