EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
audit: type=1804 audit(1666154000.943:2): pid=7961 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor243" name="/root/file0/file0" dev="loop0" ino=17 res=1
------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2854!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
audit: type=1804 audit(1666154000.953:3): pid=7961 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor243" name="/root/file0/file0" dev="loop0" ino=17 res=1
CPU: 1 PID: 7961 Comm: syz-executor243 Not tainted 4.14.295-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
task: ffff888097f86640 task.stack: ffff888098e50000
RIP: 0010:ext4_writepages+0x27fc/0x32a0 fs/ext4/inode.c:2854
RSP: 0018:ffff888098e57638 EFLAGS: 00010297
RAX: ffff888097f86640 RBX: 00000000a802c010 RCX: 1ffff11012ff0ec9
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff888097f87648
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000001be8
R10: 0000000000000001 R11: ffff888097f86640 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff88808df73870 R15: ffff888098e57a60
FS:  0000555555f07300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000560b2e99b128 CR3: 000000009e948000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_writepages+0xc3/0x240 mm/page-writeback.c:2361
 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346
 file_write_and_wait_range+0x86/0xd0 mm/filemap.c:678
 __generic_file_fsync+0x70/0x190 fs/libfs.c:985
 ext4_sync_file+0x8ed/0x12c0 fs/ext4/fsync.c:118
 vfs_fsync_range+0x103/0x260 fs/sync.c:196
 generic_write_sync include/linux/fs.h:2684 [inline]
 ext4_file_write_iter+0x5fa/0xd20 fs/ext4/file.c:281
 call_write_iter include/linux/fs.h:1780 [inline]
 new_sync_write fs/read_write.c:469 [inline]
 __vfs_write+0x44c/0x630 fs/read_write.c:482
 vfs_write+0x17f/0x4d0 fs/read_write.c:544
 SYSC_write fs/read_write.c:590 [inline]
 SyS_write+0xf2/0x210 fs/read_write.c:582
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fada7948f09
RSP: 002b:00007ffc71947e98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fada7948f09
RDX: 0000000000000088 RSI: 0000000020000440 RDI: 0000000000000006
RBP: 00007fada79087a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fada7908830
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Code: ff ff 4c 89 ff e8 25 b9 c3 ff e9 98 db ff ff e8 fb fe 99 ff 48 8b bc 24 b8 00 00 00 e8 0e 5f b1 ff e9 18 f5 ff ff e8 e4 fe 99 ff <0f> 0b e8 dd fe 99 ff 48 8b bc 24 b8 00 00 00 e8 f0 5e b1 ff 8b 
RIP: ext4_writepages+0x27fc/0x32a0 fs/ext4/inode.c:2854 RSP: ffff888098e57638
---[ end trace 71f9a0f339f84452 ]---