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: 489d, last: 38d

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 (140):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-smack-root 2019/06/22 13:54 upstream abf02e29 34bf9440 .config log report syz C gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/09/12 16:49 upstream 729e3d09 ce441f06 .config log report gregkh@linuxfoundation.org, jirislaby@kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/09/09 05:47 upstream 6f6a73c8 abf9ba4f .config log report gregkh@linuxfoundation.org, jirislaby@kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/08/27 10:43 upstream 15bc20c6 816e0689 .config log report gregkh@linuxfoundation.org, jirislaby@kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/08/25 21:46 upstream abb3438d 344da168 .config log report gregkh@linuxfoundation.org, jirislaby@kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/08/21 07:36 upstream da2968ff 1d75fe45 .config log report gregkh@linuxfoundation.org, jirislaby@kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/08/19 23:34 upstream 18445bf4 94b45706 .config log report gregkh@linuxfoundation.org, jirislaby@kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/08/19 12:44 upstream 18445bf4 e1c29030 .config log report gregkh@linuxfoundation.org, jirislaby@kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/08/15 21:05 upstream c9c9735c 424dd8e7 .config log report gregkh@linuxfoundation.org, jirislaby@kernel.org, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/08/03 08:07 upstream 5a30a789 196277c4 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/07/31 09:43 upstream 83bdc727 8df85ed9 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/07/26 17:29 upstream 04300d66 51265195 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/07/19 18:19 upstream f932d58a 9c812472 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/07/15 19:31 upstream e9919e11 f3bec699 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/07/13 09:27 upstream 4437dd6e 9ebcc5b1 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/07/08 05:39 upstream 7cc2a8ea 51095195 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/07/08 03:47 upstream 7cc2a8ea 51095195 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/06/28 09:05 upstream 1590a2e1 ffec44b5 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/06/24 22:00 upstream 7ae77150 54566aff .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/06/17 19:24 upstream 7ae77150 b9f3810b .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/06/16 19:09 upstream 7ae77150 559fbe2d .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/06/12 07:30 upstream 7ae77150 58802067 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/06/11 18:08 upstream 7ae77150 3ab7a05a .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/06/10 23:27 upstream 7ae77150 a6f7998d .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/06/07 21:16 upstream 7ae77150 2c2b926c .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/06/05 02:35 upstream acf25aa6 6720fdef .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/06/03 19:23 upstream d6f9469a a5ce5de0 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/05/31 06:35 upstream ffeb595d 6f3e1c7c .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/05/30 10:34 upstream 86852175 954bd312 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/05/29 08:06 upstream 75caf310 d19ed305 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/05/13 13:50 upstream 24085f70 9a6d42fb .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/05/12 05:02 upstream 152036d1 9eb09c40 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/05/10 17:57 upstream e99332e7 8742a2b9 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/05/07 21:29 upstream a811c1fa 98cbd87b .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/05/05 00:01 upstream 9851a0de 9941337c .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/05/04 03:16 upstream 262f7a6b 58ae5e18 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/04/27 15:18 upstream 6a8b55ed 0ce7569e .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/04/22 03:02 upstream 189522da 2e44d63e .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/04/17 16:12 upstream 7a56db02 18397578 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/04/12 02:10 upstream 5b8b9d0c a8c6a3f8 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/04/10 20:06 upstream c0cc2711 a8c6a3f8 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/04/10 07:13 upstream 5d30bcac a8c6a3f8 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/04/08 03:36 upstream 763dede1 db9bcd4b .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/03/30 20:11 upstream 7111951b c8d1cc20 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/03/30 19:00 upstream 7111951b c8d1cc20 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/03/30 03:24 upstream e595dd94 05736b29 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/03/09 04:58 upstream 378fee2e 2e9971bb .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/03/06 20:30 upstream 63623fd4 c88c7b75 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/03/03 10:48 upstream 63623fd4 c88c7b75 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/02/29 17:28 upstream f8788d86 59b57593 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/02/29 00:07 upstream f8788d86 59b57593 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2019/06/19 18:57 upstream bed3c0d8 34bf9440 .config log report gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org