Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
CPU: 0 UID: 0 PID: 5474 Comm: dhcpcd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:NODE_MAPPING fs/f2fs/f2fs.h:2258 [inline]
RIP: 0010:is_node_folio fs/f2fs/f2fs.h:2268 [inline]
RIP: 0010:f2fs_in_warm_node_list+0xbd/0x290 fs/f2fs/node.c:330
Code: 00 00 4d 03 3c 24 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 a1 9c fa fd 4d 8b 3f 49 83 c7 30 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 84 9c fa fd 4d 3b 37 74 19 e8 ca
RSP: 0000:ffffc90003de73f0 EFLAGS: 00010206
RAX: 0000000000000006 RBX: ffffea0000f03080 RCX: ffff88802cb99ec0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: ffff8880320bbdab R09: 1ffff110064177b5
R10: dffffc0000000000 R11: ffffed10064177b6 R12: ffff88803b4a4798
R13: dffffc0000000000 R14: ffff88804139f630 R15: 0000000000000030
FS:  00007fa528d9e780(0000) GS:ffff8881260fe000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9a66121000 CR3: 000000003c7b4000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 f2fs_write_end_io+0xa31/0x1740 fs/f2fs/data.c:400
 blk_update_request+0x57e/0xe60 block/blk-mq.c:1016
 blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1178
 blk_complete_reqs block/blk-mq.c:1253 [inline]
 blk_done_softirq+0x10a/0x160 block/blk-mq.c:1258
 handle_softirqs+0x1de/0x6d0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 __local_bh_enable_ip+0x170/0x2b0 kernel/softirq.c:302
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 __alloc_skb+0x1aa/0x7d0 net/core/skbuff.c:697
 alloc_skb include/linux/skbuff.h:1383 [inline]
 netlink_dump+0x18d/0xe10 net/netlink/af_netlink.c:2284
 netlink_recvmsg+0x690/0xa50 net/netlink/af_netlink.c:1976
 sock_recvmsg_nosec net/socket.c:1137 [inline]
 sock_recvmsg+0x172/0x1b0 net/socket.c:1159
 ____sys_recvmsg+0x1f2/0x4b0 net/socket.c:2918
 ___sys_recvmsg+0x215/0x590 net/socket.c:2960
 __sys_recvmsg net/socket.c:2993 [inline]
 __do_sys_recvmsg net/socket.c:2999 [inline]
 __se_sys_recvmsg net/socket.c:2996 [inline]
 __x64_sys_recvmsg+0x1c0/0x2a0 net/socket.c:2996
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa528e28407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007fff9cb5d520 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007fa528d9e780 RCX: 00007fa528e28407
RDX: 0000000000000000 RSI: 00007fff9cb5d5b0 RDI: 0000000000000012
RBP: 00007fff9cb5d594 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000002000
R13: 00007fff9cb5d5a0 R14: 00007fff9cb5d690 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:NODE_MAPPING fs/f2fs/f2fs.h:2258 [inline]
RIP: 0010:is_node_folio fs/f2fs/f2fs.h:2268 [inline]
RIP: 0010:f2fs_in_warm_node_list+0xbd/0x290 fs/f2fs/node.c:330
Code: 00 00 4d 03 3c 24 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 a1 9c fa fd 4d 8b 3f 49 83 c7 30 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 84 9c fa fd 4d 3b 37 74 19 e8 ca
RSP: 0000:ffffc90003de73f0 EFLAGS: 00010206
RAX: 0000000000000006 RBX: ffffea0000f03080 RCX: ffff88802cb99ec0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: ffff8880320bbdab R09: 1ffff110064177b5
R10: dffffc0000000000 R11: ffffed10064177b6 R12: ffff88803b4a4798
R13: dffffc0000000000 R14: ffff88804139f630 R15: 0000000000000030
FS:  00007fa528d9e780(0000) GS:ffff8881260fe000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9a66121000 CR3: 000000003c7b4000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	4d 03 3c 24          	add    (%r12),%r15
   6:	4c 89 f8             	mov    %r15,%rax
   9:	48 c1 e8 03          	shr    $0x3,%rax
   d:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
  12:	74 08                	je     0x1c
  14:	4c 89 ff             	mov    %r15,%rdi
  17:	e8 a1 9c fa fd       	call   0xfdfa9cbd
  1c:	4d 8b 3f             	mov    (%r15),%r15
  1f:	49 83 c7 30          	add    $0x30,%r15
  23:	4c 89 f8             	mov    %r15,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 ff             	mov    %r15,%rdi
  34:	e8 84 9c fa fd       	call   0xfdfa9cbd
  39:	4d 3b 37             	cmp    (%r15),%r14
  3c:	74 19                	je     0x57
  3e:	e8                   	.byte 0xe8
  3f:	ca                   	.byte 0xca