general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 0 PID: 11205 Comm: syz.4.2932 Not tainted 6.1.118-syzkaller-00077-g3f924195e222 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:f2fs_test_and_set_bit fs/f2fs/f2fs.h:2940 [inline]
RIP: 0010:update_sit_entry+0x5db/0x1020 fs/f2fs/segment.c:2351
Code: 4d 98 48 8d 5c c8 18 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 c2 0a 83 ff 4c 8b 3b 4d 01 e7 4d 89 fc 49 c1 ec 03 <43> 0f b6 04 2c 84 c0 0f 85 d4 08 00 00 41 0f b6 1f 41 89 de 8b 45
RSP: 0018:ffffc90000cef168 EFLAGS: 00010202
RAX: 1ffff110221f3e44 RBX: ffff888110f9f220 RCX: 0000000000000041
RDX: ffff88813a1b0000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000cef1f0 R08: ffffffff8239ee4b R09: ffffffff8239e9ae
R10: 0000000000000003 R11: ffff88813a1b0000 R12: 0000000000000002
R13: dffffc0000000000 R14: ffff8881152cc000 R15: 0000000000000012
FS:  00007f51bd8736c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3093d4 CR3: 000000011f705000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 f2fs_allocate_data_block+0x1558/0x3ad0 fs/f2fs/segment.c:3368
 __allocate_data_block fs/f2fs/data.c:1488 [inline]
 f2fs_map_blocks+0x13e5/0x4340 fs/f2fs/data.c:1674
 f2fs_expand_inode_data+0x672/0xbf0 fs/f2fs/file.c:1802
 f2fs_fallocate+0x427/0x7e0 fs/f2fs/file.c:1897
 vfs_fallocate+0x492/0x570 fs/open.c:324
 do_vfs_ioctl+0x2150/0x29a0 fs/ioctl.c:849
 __do_sys_ioctl fs/ioctl.c:868 [inline]
 __se_sys_ioctl+0x99/0x190 fs/ioctl.c:856
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856
 x64_sys_call+0x98/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f51bc985d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f51bd873038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f51bcb75fa0 RCX: 00007f51bc985d29
RDX: 00000000200000c0 RSI: 0000000040305828 RDI: 0000000000000004
RBP: 00007f51bca01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f51bcb75fa0 R15: 00007ffecf59daf8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:f2fs_test_and_set_bit fs/f2fs/f2fs.h:2940 [inline]
RIP: 0010:update_sit_entry+0x5db/0x1020 fs/f2fs/segment.c:2351
Code: 4d 98 48 8d 5c c8 18 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 c2 0a 83 ff 4c 8b 3b 4d 01 e7 4d 89 fc 49 c1 ec 03 <43> 0f b6 04 2c 84 c0 0f 85 d4 08 00 00 41 0f b6 1f 41 89 de 8b 45
RSP: 0018:ffffc90000cef168 EFLAGS: 00010202
RAX: 1ffff110221f3e44 RBX: ffff888110f9f220 RCX: 0000000000000041
RDX: ffff88813a1b0000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000cef1f0 R08: ffffffff8239ee4b R09: ffffffff8239e9ae
R10: 0000000000000003 R11: ffff88813a1b0000 R12: 0000000000000002
R13: dffffc0000000000 R14: ffff8881152cc000 R15: 0000000000000012
FS:  00007f51bd8736c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2df03e CR3: 000000011f705000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	4d 98                	rex.WRB cltq
   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 c2 0a 83 ff       	call   0xff830adf
  1d:	4c 8b 3b             	mov    (%rbx),%r15
  20:	4d 01 e7             	add    %r12,%r15
  23:	4d 89 fc             	mov    %r15,%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 d4 08 00 00    	jne    0x90b
  37:	41 0f b6 1f          	movzbl (%r15),%ebx
  3b:	41 89 de             	mov    %ebx,%r14d
  3e:	8b                   	.byte 0x8b
  3f:	45                   	rex.RB