loop0: detected capacity change from 0 to 16
erofs: (device loop0): mounted with root inode @ nid 36.
BUG: scheduling while atomic: syz.0.17/4351/0x00000002
no locks held by syz.0.17/4351.
Modules linked in:
Preemption disabled at:
[<ffffffff83990d27>] kmap_atomic include/linux/highmem-internal.h:196 [inline]
[<ffffffff83990d27>] z_erofs_reload_indexes+0x347/0x590 fs/erofs/zmap.c:146
Kernel panic - not syncing: scheduling while atomic: panic_on_warn set ...
CPU: 1 PID: 4351 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 panic+0x2e5/0x810 kernel/panic.c:309
 check_panic_on_warn+0x80/0xa0 kernel/panic.c:229
 __schedule_bug+0x193/0x1f0 kernel/sched/core.c:5589
 schedule_debug kernel/sched/core.c:5618 [inline]
 __schedule+0x1324/0x43c0 kernel/sched/core.c:6286
 schedule+0x11b/0x1e0 kernel/sched/core.c:6478
 exit_to_user_mode_loop+0x47/0x130 kernel/entry/common.c:169
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f00b3879cb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f00b2edd0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f00b3af4fa8 RCX: 00007f00b3879cb9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f00b3af4fac
RBP: 00007f00b3af4fa0 R08: 0022d5648d7fe7c2 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f00b3af5038 R14: 00007ffe4c35e270 R15: 00007ffe4c35e358
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..