syzbot


BUG: scheduling while atomic in uevent_store

Status: auto-obsoleted due to no activity on 2024/07/15 09:01
Reported-by: syzbot+ece4f8542394ddd1ece9@syzkaller.appspotmail.com
First crash: 96d, last: 96d

Sample crash report:
BUG: scheduling while atomic: udevd/100/0x00000002
Modules linked in:
Preemption disabled at:
[<ffffffff8165eb4a>] is_module_text_address+0x1a/0x140 kernel/module.c:4811
CPU: 1 PID: 100 Comm: udevd Not tainted 5.15.148-syzkaller-00013-gad06eaf051cd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
 dump_stack+0x15/0x17 lib/dump_stack.c:113
 __schedule_bug+0x195/0x260 kernel/sched/core.c:5707
 schedule_debug kernel/sched/core.c:5734 [inline]
 __schedule+0xd19/0x1590 kernel/sched/core.c:6402
 schedule+0x11f/0x1e0 kernel/sched/core.c:6595
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6654
 __mutex_lock_common kernel/locking/mutex.c:692 [inline]
 __mutex_lock+0x90e/0x1870 kernel/locking/mutex.c:755
 __mutex_lock_slowpath+0xe/0x10 kernel/locking/mutex.c:1006
 mutex_lock+0x135/0x1e0 kernel/locking/mutex.c:288
 kobject_uevent_env+0x4c4/0x700 lib/kobject_uevent.c:586
 kobject_synth_uevent+0x4eb/0xae0 lib/kobject_uevent.c:208
 uevent_store+0x25/0x60 drivers/base/core.c:2420
 dev_attr_store+0x5c/0x80 drivers/base/core.c:2121
 sysfs_kf_write+0x123/0x140 fs/sysfs/file.c:139
 kernfs_fop_write_iter+0x2c4/0x410 fs/kernfs/file.c:296
 call_write_iter include/linux/fs.h:2202 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0xd5d/0x1110 fs/read_write.c:594
 ksys_write+0x199/0x2c0 fs/read_write.c:647
 __do_sys_write fs/read_write.c:659 [inline]
 __se_sys_write fs/read_write.c:656 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:656
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fc2890b2bf2
Code: 89 c7 48 89 44 24 08 e8 7b 34 fa ff 48 8b 44 24 08 48 83 c4 28 c3 c3 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 6f 48 8b 15 07 a2 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007fff1f6fd198 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00005652184d8850 RCX: 00007fc2890b2bf2
RDX: 0000000000000007 RSI: 00005652184e7d00 RDI: 000000000000000c
RBP: 0000000000000007 R08: 00005652184e7d00 R09: 0000000000000040
R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000007
R13: 00005652184e7d00 R14: 00007fff1f6fd578 R15: 0000000000000000
 </TASK>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/04/16 08:54 android13-5.15-lts ad06eaf051cd 0d592ce4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 BUG: scheduling while atomic in uevent_store
* Struck through repros no longer work on HEAD.