syzbot


WARNING in bpf_bprintf_prepare
Status: upstream: reported C repro on 2021/05/10 16:39
Reported-by: syzbot+63122d0bc347f18c1884@syzkaller.appspotmail.com
Fix commit: e2d5b2bb769f bpf: Fix nested bpf_bprintf_prepare with more per-cpu buffers
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-qemu2-riscv64 ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-arm32]
First crash: 151d, last: 102d

Cause bisection: introduced by (bisect log) [merge commit]:
commit d6560052c2f73db59834e9a3c0aba20579aa7059
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon Feb 22 17:16:38 2021 +0000

  Merge tag 'regulator-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Crash: WARNING in kvm_wait (log)
Repro: C syz .config

Sample crash report:

Crashes (96):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-bpf-next-kasan-gce 2021/05/03 07:07 bpf-next 3733bfbbdd28 77e2b668 .config log report syz C WARNING in bpf_bprintf_prepare
ci-upstream-kasan-gce-selinux-root 2021/05/24 02:56 upstream 6ebb6814a1ef 3c7fef33 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-kasan-gce-root 2021/05/20 13:01 upstream c3d0e3fd41b7 c560a65d .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-net-this-kasan-gce 2021/05/12 02:17 net 297c4de6f780 b3c3bb8e .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-net-this-kasan-gce 2021/05/09 01:31 net b741596468b0 bc5434be .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/17 12:34 bpf-next 809ed84de8b3 aba2b2fb .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/17 10:50 bpf-next 809ed84de8b3 aba2b2fb .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/16 13:38 bpf-next 1f26622b791b c06f97ad .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/15 12:05 bpf-next ca16b429f39b 58636922 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/15 09:16 bpf-next ca16b429f39b 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/15 02:15 bpf-next ca16b429f39b 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/14 19:05 bpf-next ca16b429f39b 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/14 17:16 bpf-next ca16b429f39b 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/14 15:05 bpf-next ca16b429f39b 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/14 12:57 bpf-next ca16b429f39b 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/14 10:28 bpf-next ca16b429f39b 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/14 09:12 bpf-next ca16b429f39b 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/13 11:56 bpf-next ca16b429f39b 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/12 06:11 bpf-next ca16b429f39b 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/11 19:01 bpf-next 380afe720896 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/11 12:28 bpf-next 380afe720896 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/11 04:58 bpf-next 380afe720896 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/11 03:37 bpf-next 380afe720896 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/10 15:37 bpf-next 380afe720896 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/10 07:44 bpf-next 380afe720896 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/10 03:43 bpf-next 380afe720896 1ba81399 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/10 00:28 bpf-next 380afe720896 84fe5d96 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/09 05:54 bpf-next 380afe720896 5c2fe346 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/08 19:17 bpf-next cf68fa431d5d b718257f .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/08 14:47 bpf-next cf68fa431d5d b718257f .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/08 11:25 bpf-next cf68fa431d5d b718257f .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/08 06:23 bpf-next cf68fa431d5d b718257f .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/07 09:16 bpf-next cf68fa431d5d 500c2339 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/07 07:40 bpf-next cf68fa431d5d 500c2339 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/06 13:16 bpf-next cf68fa431d5d 500c2339 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/06 03:55 bpf-next cf68fa431d5d 500c2339 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/06 00:38 bpf-next cf68fa431d5d 500c2339 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/05 21:00 bpf-next cf68fa431d5d 500c2339 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/05 18:06 bpf-next cf68fa431d5d 500c2339 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/05 08:04 bpf-next cf68fa431d5d 500c2339 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/04 06:07 bpf-next 56b8b7f9533b 0740de69 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/04 03:11 bpf-next 56b8b7f9533b 0740de69 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/04 00:43 bpf-next 56b8b7f9533b 0740de69 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/03 21:51 bpf-next 56b8b7f9533b 0740de69 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/03 13:27 bpf-next 05924717ac70 0740de69 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/02 15:08 bpf-next 05924717ac70 0740de69 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/02 12:57 bpf-next 05924717ac70 0740de69 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/01 20:56 bpf-next 05924717ac70 032639db .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/01 12:37 bpf-next 05924717ac70 032639db .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/01 09:06 bpf-next e8e0f0f48478 032639db .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/06/01 03:29 bpf-next e8e0f0f48478 032639db .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/31 21:16 bpf-next e8e0f0f48478 032639db .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/31 14:38 bpf-next e8e0f0f48478 032639db .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/31 09:25 bpf-next e8e0f0f48478 325a8dab .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/31 07:23 bpf-next e8e0f0f48478 325a8dab .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/30 15:09 bpf-next e8e0f0f48478 325a8dab .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/30 07:20 bpf-next e8e0f0f48478 325a8dab .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/29 00:28 bpf-next e8e0f0f48478 858ea628 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/28 14:07 bpf-next d6a6a55518c1 858ea628 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/28 06:55 bpf-next d6a6a55518c1 858ea628 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-net-kasan-gce 2021/05/27 15:40 net-next 59c56342459a 858ea628 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/26 12:15 bpf-next 21703cf790c7 54f0bcf1 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/21 04:53 bpf-next a49e72b3bda7 3c7fef33 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/20 16:49 bpf-next a49e72b3bda7 c560a65d .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/20 05:51 bpf-next 5d67f349590d a343ba6b .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-net-kasan-gce 2021/05/19 16:28 net-next 86544c3de6a2 a343ba6b .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/18 01:30 bpf-next f18ba26da88a a343ba6b .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/08 22:25 bpf-next 3733bfbbdd28 bc5434be .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/05 16:57 bpf-next 3733bfbbdd28 06c27ff5 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/05/03 05:19 bpf-next 3733bfbbdd28 77e2b668 .config log report info WARNING in bpf_bprintf_prepare
ci-upstream-bpf-next-kasan-gce 2021/04/29 00:27 bpf-next 3733bfbbdd28 77e2b668 .config log report info WARNING in bpf_bprintf_prepare