general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 333 Comm: syz-executor138 Not tainted 5.10.234-syzkaller-00031-gfc9aa81462ee #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:f2fs_test_and_set_bit fs/f2fs/f2fs.h:2908 [inline]
RIP: 0010:update_sit_entry+0x5df/0x1050 fs/f2fs/segment.c:2339
Code: 4d 90 48 8d 5c c8 18 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 ee 93 88 ff 4c 8b 33 4d 01 fe 4d 89 f4 49 c1 ec 03 <43> 0f b6 04 2c 84 c0 0f 85 21 09 00 00 41 0f b6 1e 41 89 df 8b 45
RSP: 0018:ffffc90000e86b58 EFLAGS: 00010246
RAX: 1ffff1102193c43a RBX: ffff88810c9e21d0 RCX: 0000000000000037
RDX: ffff88810d08bb40 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000e86bf0 R08: ffffffff821fc9b0 R09: ffffffff821fc50d
R10: 0000000000000003 R11: ffff88810d08bb40 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f2799e576c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdb4a5a0b4 CR3: 00000001206c4000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
f2fs_allocate_data_block+0x1512/0x3680 fs/f2fs/segment.c:3481
__allocate_data_block+0x5a7/0xb10 fs/f2fs/data.c:1407
f2fs_map_blocks+0x18ef/0x3e50 fs/f2fs/data.c:1575
f2fs_iomap_begin+0x270/0x980 fs/f2fs/data.c:4118
iomap_apply+0x116/0x8a0 fs/iomap/apply.c:46
__iomap_dio_rw+0x767/0x10f0 fs/iomap/direct-io.c:527
f2fs_dio_write_iter fs/f2fs/file.c:4743 [inline]
f2fs_file_write_iter+0x12b1/0x2570 fs/f2fs/file.c:4858
do_iter_readv_writev+0x58e/0x790
do_iter_write+0x183/0x640 fs/read_write.c:866
vfs_writev+0x26e/0x510 fs/read_write.c:939
do_pwritev fs/read_write.c:1036 [inline]
__do_sys_pwritev2 fs/read_write.c:1095 [inline]
__se_sys_pwritev2+0x1c6/0x2c0 fs/read_write.c:1086
__x64_sys_pwritev2+0xe5/0x100 fs/read_write.c:1086
do_syscall_64+0x34/0x70
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f2799ebbdb9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2799e57158 EFLAGS: 00000212 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007f2799f48618 RCX: 00007f2799ebbdb9
RDX: 0000000000000001 RSI: 0000400000000240 RDI: 0000000000000005
RBP: 00007f2799f48610 R08: 0000000000000007 R09: 0000000000000003
R10: 0000000000002000 R11: 0000000000000212 R12: 00007f2799f4861c
R13: 000000000000006e R14: 00007ffdb4a59ed0 R15: 00007ffdb4a59fb8
Modules linked in:
---[ end trace 392219312cfed31d ]---
RIP: 0010:f2fs_test_and_set_bit fs/f2fs/f2fs.h:2908 [inline]
RIP: 0010:update_sit_entry+0x5df/0x1050 fs/f2fs/segment.c:2339
Code: 4d 90 48 8d 5c c8 18 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 ee 93 88 ff 4c 8b 33 4d 01 fe 4d 89 f4 49 c1 ec 03 <43> 0f b6 04 2c 84 c0 0f 85 21 09 00 00 41 0f b6 1e 41 89 df 8b 45
RSP: 0018:ffffc90000e86b58 EFLAGS: 00010246
RAX: 1ffff1102193c43a RBX: ffff88810c9e21d0 RCX: 0000000000000037
RDX: ffff88810d08bb40 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000e86bf0 R08: ffffffff821fc9b0 R09: ffffffff821fc50d
R10: 0000000000000003 R11: ffff88810d08bb40 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f2799e576c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f27929f5000 CR3: 00000001206c4000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 4d 90 rex.WRB xchg %rax,%r8
2: 48 8d 5c c8 18 lea 0x18(%rax,%rcx,8),%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 ee 93 88 ff call 0xff88940b
1d: 4c 8b 33 mov (%rbx),%r14
20: 4d 01 fe add %r15,%r14
23: 4d 89 f4 mov %r14,%r12
26: 49 c1 ec 03 shr $0x3,%r12
* 2a: 43 0f b6 04 2c movzbl (%r12,%r13,1),%eax <-- trapping instruction
2f: 84 c0 test %al,%al
31: 0f 85 21 09 00 00 jne 0x958
37: 41 0f b6 1e movzbl (%r14),%ebx
3b: 41 89 df mov %ebx,%r15d
3e: 8b .byte 0x8b
3f: 45 rex.RB