syzbot


usb-testing boot error: kernel panic: corrupted stack end in call_usermodehelper_exec_async

Status: upstream: reported on 2022/08/22 19:48
Reported-by: syzbot+0d36a7d5e61d057c150d@syzkaller.appspotmail.com
First crash: 100d, last: 87d

Sample crash report:
Kernel panic - not syncing: corrupted stack end detected inside scheduler
CPU: 0 PID: 245 Comm: kworker/u4:2 Not tainted 6.0.0-rc1-syzkaller-00047-g10174220f55a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 panic+0x2c8/0x627 kernel/panic.c:274
 schedule_debug kernel/sched/core.c:5737 [inline]
 __schedule+0x26dd/0x26f0 kernel/sched/core.c:6388
 do_task_dead+0xd1/0x100 kernel/sched/core.c:6512
 do_exit+0x18bd/0x2930 kernel/exit.c:847
 call_usermodehelper_exec_async+0x418/0x580 kernel/umh.c:125
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-upstream-usb 2022/09/01 14:31 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 10174220f55a 86c46e46 .config log report usb-testing boot error: kernel panic: corrupted stack end in call_usermodehelper_exec_async
ci2-upstream-usb 2022/08/30 13:48 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 46e144bd15e1 4a380809 .config log report usb-testing boot error: kernel panic: corrupted stack end in call_usermodehelper_exec_async
ci2-upstream-usb 2022/08/18 20:23 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing ad57410d231d 26a13b38 .config log report usb-testing boot error: kernel panic: corrupted stack end in call_usermodehelper_exec_async
ci2-upstream-usb 2022/08/18 19:40 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing ad57410d231d d58e263f .config log report usb-testing boot error: kernel panic: corrupted stack end in call_usermodehelper_exec_async
* Struck through repros no longer work on HEAD.