loop2: detected capacity change from 0 to 16
erofs: (device loop2): mounted with root inode @ nid 36.
BUG: scheduling while atomic: syz.2.94/448/0x00000002
Modules linked in:
Preemption disabled at:
[<ffffffff821dba10>] kmap_atomic include/linux/highmem-internal.h:196 [inline]
[<ffffffff821dba10>] z_erofs_reload_indexes+0x310/0x410 fs/erofs/zmap.c:148
CPU: 1 PID: 448 Comm: syz.2.94 Not tainted 5.15.189-syzkaller-00091-gf32b52534f1d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:88
 dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106
 dump_stack+0x15/0x20 lib/dump_stack.c:113
 __schedule_bug+0x174/0x230 kernel/sched/core.c:5714
 schedule_debug kernel/sched/core.c:5741 [inline]
 __schedule+0xc2f/0x14c0 kernel/sched/core.c:6409
 schedule+0x11e/0x1e0 kernel/sched/core.c:6602
 exit_to_user_mode_loop+0x50/0xe0 kernel/entry/common.c:169
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fa635c7f9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffae6a3118 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 000000000000a734 RCX: 00007fa635c7f9a9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 00000003ae6a340f
R10: 00007fa635af1000 R11: 0000000000000246 R12: 00007fa635ea6fac
R13: 00007fa635ea6fa0 R14: ffffffffffffffff R15: 0000000000000003
 </TASK>