audit: type=1804 audit(1676163954.773:21): pid=11322 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir972129929/syzkaller.whJ7QD/106/file0/file1" dev="loop0" ino=14 res=1
------------[ cut here ]------------
kernel BUG at fs/fat/inode.c:161!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 11322 Comm: syz-executor.0 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
task: ffff8880487be600 task.stack: ffff8881d6778000
RIP: 0010:__fat_get_block fs/fat/inode.c:161 [inline]
RIP: 0010:fat_get_block+0x647/0x750 fs/fat/inode.c:176
RSP: 0018:ffff8881d677f328 EFLAGS: 00010212
RAX: 0000000000040000 RBX: ffff888045e159d8 RCX: ffffc90005cdc000
RDX: 000000000000086f RSI: ffffffff81d00317 RDI: ffff888042190058
RBP: ffff888042190110 R08: ffff8881d677f3c0 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8880487be600 R12: ffff8880970fc500
R13: 0000000000000000 R14: 0000000000000009 R15: 0000000000000001
FS:  00007f4dbbbf9700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3c03a7a263 CR3: 0000000221072000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __block_write_begin_int+0x35c/0x11d0 fs/buffer.c:2038
 __block_write_begin fs/buffer.c:2088 [inline]
 block_write_begin+0x58/0x270 fs/buffer.c:2147
 cont_write_begin+0x4a3/0x740 fs/buffer.c:2497
 fat_write_begin+0x89/0x170 fs/fat/inode.c:222
 generic_perform_write+0x1d5/0x430 mm/filemap.c:3055
 __generic_file_write_iter+0x227/0x590 mm/filemap.c:3180
 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208
 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
 __kernel_write+0xf5/0x330 fs/read_write.c:501
 write_pipe_buf+0x143/0x1c0 fs/splice.c:797
 splice_from_pipe_feed fs/splice.c:502 [inline]
 __splice_from_pipe+0x326/0x7a0 fs/splice.c:626
 splice_from_pipe fs/splice.c:661 [inline]
 default_file_splice_write+0xc5/0x150 fs/splice.c:809
 do_splice_from fs/splice.c:851 [inline]
 direct_splice_actor+0x115/0x160 fs/splice.c:1018
 splice_direct_to_actor+0x27c/0x730 fs/splice.c:973
 do_splice_direct+0x164/0x210 fs/splice.c:1061
 do_sendfile+0x47f/0xb30 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0xff/0x110 fs/read_write.c:1488
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f4dbd6870f9
RSP: 002b:00007f4dbbbf9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f4dbd7a6f80 RCX: 00007f4dbd6870f9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007f4dbd6e2ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000007f R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdc8ef425f R14: 00007f4dbbbf9300 R15: 0000000000022000
Code: 16 af ff e9 bd fa ff ff 48 8b 7c 24 20 e8 82 15 af ff e9 f4 fb ff ff 48 8b 7c 24 38 e8 83 14 af ff e9 52 fe ff ff e8 99 53 85 ff <0f> 0b e8 92 53 85 ff 0f 0b e8 3b 16 af ff e9 b1 fa ff ff 48 8b 
RIP: __fat_get_block fs/fat/inode.c:161 [inline] RSP: ffff8881d677f328
RIP: fat_get_block+0x647/0x750 fs/fat/inode.c:176 RSP: ffff8881d677f328
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
F2FS-fs (loop1): invalid crc value
F2FS-fs (loop1): Found nat_bits in checkpoint
BTRFS error (device loop5): unsupported checksum algorithm 2
BTRFS error (device loop5): superblock checksum mismatch
---[ end trace 1a30da8a14dced69 ]---