loop0: detected capacity change from 0 to 40427
F2FS-fs (loop0): invalid crc value
F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 1
F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0
F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0
F2FS-fs (loop0): Start checkpoint disabled!
F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0
F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6
syz.0.0: attempt to access beyond end of device
loop0: rw=2049, sector=45096, nr_sectors = 128 limit=40427
syz.0.0: attempt to access beyond end of device
loop0: rw=2049, sector=45224, nr_sectors = 128 limit=40427
syz.0.0: attempt to access beyond end of device
loop0: rw=2049, sector=45352, nr_sectors = 128 limit=40427
syz.0.0: attempt to access beyond end of device
loop0: rw=2049, sector=45480, nr_sectors = 128 limit=40427
syz.0.0: attempt to access beyond end of device
loop0: rw=2049, sector=45608, nr_sectors = 128 limit=40427
syz.0.0: attempt to access beyond end of device
loop0: rw=2049, sector=45736, nr_sectors = 128 limit=40427
syz.0.0: attempt to access beyond end of device
loop0: rw=2049, sector=45864, nr_sectors = 128 limit=40427
syz.0.0: attempt to access beyond end of device
loop0: rw=2049, sector=45992, nr_sectors = 128 limit=40427
syz.0.0: attempt to access beyond end of device
loop0: rw=2049, sector=46120, nr_sectors = 128 limit=40427
syz.0.0: attempt to access beyond end of device
loop0: rw=2049, sector=46248, nr_sectors = 128 limit=40427
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
CPU: 0 UID: 0 PID: 5317 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:f2fs_test_and_set_bit fs/f2fs/f2fs.h:3287 [inline]
RIP: 0010:update_sit_entry_for_alloc fs/f2fs/segment.c:2515 [inline]
RIP: 0010:update_sit_entry+0x46a/0x1c00 fs/f2fs/segment.c:2568
Code: 8b 04 24 48 8d 58 18 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 43 2d d4 fd 48 8b 1b 4c 01 f3 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 fa 14 00 00 44 0f b6 3b 44 89 f8 40 08
RSP: 0018:ffffc9000ecde6f8 EFLAGS: 00010206
RAX: 0000000000000006 RBX: 0000000000000032 RCX: ffff88801f6dcb00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000008 R08: ffffffff9057d237 R09: 1ffffffff20afa46
R10: dffffc0000000000 R11: fffffbfff20afa47 R12: 1ffff1100259b1fc
R13: dffffc0000000000 R14: 0000000000000032 R15: ffff88803de124b2
FS: 00007ff6738fa6c0(0000) GS:ffff88808c533000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd5437b2fb3 CR3: 000000001fc84000 CR4: 0000000000352ef0
Call Trace:
<TASK>
f2fs_allocate_data_block+0x12c2/0x4060 fs/f2fs/segment.c:3842
do_write_page+0x13f/0x880 fs/f2fs/segment.c:3982
f2fs_outplace_write_data+0x11a/0x220 fs/f2fs/segment.c:4058
f2fs_do_write_data_page+0x1150/0x1540 fs/f2fs/data.c:3025
f2fs_write_single_data_page+0x9cc/0x1840 fs/f2fs/data.c:3142
f2fs_write_cache_pages fs/f2fs/data.c:3404 [inline]
__f2fs_write_data_pages fs/f2fs/data.c:3580 [inline]
f2fs_write_data_pages+0x1d2e/0x36f0 fs/f2fs/data.c:3618
do_writepages+0x338/0x560 mm/page-writeback.c:2571
filemap_writeback mm/filemap.c:387 [inline]
filemap_fdatawrite_range mm/filemap.c:412 [inline]
filemap_write_and_wait_range+0x335/0x3f0 mm/filemap.c:684
f2fs_flush_buffered_write fs/f2fs/file.c:5154 [inline]
f2fs_file_write_iter+0x841/0x28e0 fs/f2fs/file.c:5373
iter_file_splice_write+0xa31/0x1240 fs/splice.c:736
do_splice_from fs/splice.c:936 [inline]
direct_splice_actor+0x101/0x160 fs/splice.c:1159
splice_direct_to_actor+0x57b/0xcb0 fs/splice.c:1103
do_splice_direct_actor fs/splice.c:1202 [inline]
do_splice_direct+0x195/0x290 fs/splice.c:1228
do_sendfile+0x52e/0x7c0 fs/read_write.c:1371
__do_sys_sendfile64 fs/read_write.c:1432 [inline]
__se_sys_sendfile64+0x144/0x1a0 fs/read_write.c:1418
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff67299e0d9
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:00007ff6738f9fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007ff672c25fa0 RCX: 00007ff67299e0d9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007ff672a35024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff672c26038 R14: 00007ff672c25fa0 R15: 00007ffdb3b7f718
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:f2fs_test_and_set_bit fs/f2fs/f2fs.h:3287 [inline]
RIP: 0010:update_sit_entry_for_alloc fs/f2fs/segment.c:2515 [inline]
RIP: 0010:update_sit_entry+0x46a/0x1c00 fs/f2fs/segment.c:2568
Code: 8b 04 24 48 8d 58 18 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 43 2d d4 fd 48 8b 1b 4c 01 f3 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 fa 14 00 00 44 0f b6 3b 44 89 f8 40 08
RSP: 0018:ffffc9000ecde6f8 EFLAGS: 00010206
RAX: 0000000000000006 RBX: 0000000000000032 RCX: ffff88801f6dcb00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000008 R08: ffffffff9057d237 R09: 1ffffffff20afa46
R10: dffffc0000000000 R11: fffffbfff20afa47 R12: 1ffff1100259b1fc
R13: dffffc0000000000 R14: 0000000000000032 R15: ffff88803de124b2
FS: 00007ff6738fa6c0(0000) GS:ffff88808c533000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdb3b7ef40 CR3: 000000001fc84000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess):
0: 8b 04 24 mov (%rsp),%eax
3: 48 8d 58 18 lea 0x18(%rax),%rbx
7: 48 89 d8 mov %rbx,%rax
a: 48 c1 e8 03 shr $0x3,%rax
e: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1)
13: 74 08 je 0x1d
15: 48 89 df mov %rbx,%rdi
18: e8 43 2d d4 fd call 0xfdd42d60
1d: 48 8b 1b mov (%rbx),%rbx
20: 4c 01 f3 add %r14,%rbx
23: 48 89 d8 mov %rbx,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction
2f: 84 c0 test %al,%al
31: 0f 85 fa 14 00 00 jne 0x1531
37: 44 0f b6 3b movzbl (%rbx),%r15d
3b: 44 89 f8 mov %r15d,%eax
3e: 40 rex
3f: 08 .byte 0x8