------------[ cut here ]------------
WARNING: CPU: 1 PID: 3995 at fs/ext4/page-io.c:231 ext4_put_io_end_defer+0x2d5/0x300 fs/ext4/page-io.c:297
Modules linked in:
CPU: 1 PID: 3995 Comm: udevd Not tainted 5.15.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:ext4_add_complete_io fs/ext4/page-io.c:231 [inline]
RIP: 0010:ext4_put_io_end_defer+0x2d5/0x300 fs/ext4/page-io.c:297
Code: 65 00 eb 05 e8 ec 59 5b ff 48 8b 3c 24 48 8b 74 24 08 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d e9 d0 18 02 08 e8 cb 59 5b ff <0f> 0b e9 b7 fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 85 fd ff
RSP: 0018:ffffc90000dd0ad8 EFLAGS: 00010246
RAX: ffffffff82250315 RBX: ffff888024ae6378 RCX: ffff88801e330000
RDX: 0000000080000100 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff888074f4e678 R08: ffffffff822500c0 R09: ffffed100e136392
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880709b1c60
R13: ffff888024ae6000 R14: ffff888074f4e650 R15: dffffc0000000000
FS: 00007f3601017c80(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555556ed788 CR3: 000000005d85f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ext4_end_bio+0x357/0x5b0 fs/ext4/page-io.c:360
req_bio_endio block/blk-core.c:261 [inline]
blk_update_request+0x87c/0x1470 block/blk-core.c:1441
scsi_end_request+0x83/0x980 drivers/scsi/scsi_lib.c:544
scsi_io_completion+0x1fa/0x540 drivers/scsi/scsi_lib.c:940
blk_complete_reqs block/blk-mq.c:587 [inline]
blk_done_softirq+0xf2/0x130 block/blk-mq.c:592
__do_softirq+0x3b3/0x93a kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x155/0x240 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
common_interrupt+0xa4/0xc0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:629
RIP: 0010:rcu_lock_acquire+0x0/0x30 include/linux/rcupdate.h:311
Code: 80 e1 07 80 c1 03 38 c1 0f 8c c3 fe ff ff 4c 89 f7 e8 34 a7 99 fd e9 b6 fe ff ff e8 ca 22 ed 05 66 2e 0f 1f 84 00 00 00 00 00 fb e1 4f fd e8 f6 e1 4f fd 48 c7 c7 20 fb 91 8c 31 f6 31 d2 b9
RSP: 0018:ffffc90003417678 EFLAGS: 00000283
RAX: 0000000000000001 RBX: ffffc900034176e0 RCX: 0000000000000000
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc90003417710
RBP: ffffc90003417790 R08: dffffc0000000000 R09: ffffc90003417700
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900034176f8
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc900034176e0
rcu_read_lock include/linux/rcupdate.h:739 [inline]
xa_load+0x164/0x460 lib/xarray.c:1458
page_cache_ra_unbounded+0x22b/0x930 mm/readahead.c:200
do_page_cache_ra mm/readahead.c:269 [inline]
force_page_cache_ra+0x378/0x3e0 mm/readahead.c:301
page_cache_sync_readahead include/linux/pagemap.h:833 [inline]
filemap_get_pages mm/filemap.c:2551 [inline]
filemap_read+0x71c/0x2980 mm/filemap.c:2634
blkdev_read_iter+0x12a/0x180 block/fops.c:560
call_read_iter include/linux/fs.h:2166 [inline]
new_sync_read fs/read_write.c:404 [inline]
vfs_read+0xa9f/0xe10 fs/read_write.c:485
ksys_read+0x1a2/0x2c0 fs/read_write.c:623
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f3601142b6a
Code: 00 3d 00 00 41 00 75 0d 50 48 8d 3d 2d 08 0a 00 e8 ea 7d 01 00 31 c0 e9 07 ff ff ff 64 8b 04 25 18 00 00 00 85 c0 75 1b 0f 05 <48> 3d 00 f0 ff ff 76 6c 48 8b 15 8f a2 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffe8ac90718 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3601142b6a
RDX: 0000000000000400 RSI: 000055e292bddb18 RDI: 0000000000000009
RBP: 0000000000000400 R08: 000055e292bddaf0 R09: 0000000000000008
R10: 0000000000000051 R11: 0000000000000246 R12: 000055e292bddaf0
R13: 000055e292bddb08 R14: 000055e292be0428 R15: 000055e292be03d0
----------------
Code disassembly (best guess):
0: 80 e1 07 and $0x7,%cl
3: 80 c1 03 add $0x3,%cl
6: 38 c1 cmp %al,%cl
8: 0f 8c c3 fe ff ff jl 0xfffffed1
e: 4c 89 f7 mov %r14,%rdi
11: e8 34 a7 99 fd call 0xfd99a74a
16: e9 b6 fe ff ff jmp 0xfffffed1
1b: e8 ca 22 ed 05 call 0x5ed22ea
20: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1)
27: 00 00 00
* 2a: e8 fb e1 4f fd call 0xfd4fe22a <-- trapping instruction
2f: e8 f6 e1 4f fd call 0xfd4fe22a
34: 48 c7 c7 20 fb 91 8c mov $0xffffffff8c91fb20,%rdi
3b: 31 f6 xor %esi,%esi
3d: 31 d2 xor %edx,%edx
3f: b9 .byte 0xb9