general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
CPU: 1 PID: 11019 Comm: syz.6.1520 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:rose_transmit_link+0x2e/0x730 net/rose/rose_link.c:266
Code: 56 41 55 41 54 53 48 83 ec 18 48 89 f5 49 89 fc 49 be 00 00 00 00 00 fc ff df e8 dd 4a b5 f8 4c 8d 7d 32 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 5f 05 00 00 41 0f b6 1f 31 ff 89 de e8
RSP: 0018:ffffc90003adfc10 EFLAGS: 00010206
RAX: 0000000000000006 RBX: 0000000000000000 RCX: ffff8880218b8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88805bd5d8c0
RBP: 0000000000000000 R08: ffff8880218b8000 R09: 0000000000000008
R10: 000000000000000f R11: 0000000000000000 R12: ffff88805bd5d8c0
R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000032
FS:  000055557e6f3500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31213ff8 CR3: 000000006256e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rose_write_internal+0x673/0x1e80 net/rose/rose_subr.c:198
 rose_release+0x22a/0x4e0 net/rose/af_rose.c:670
 __sock_release net/socket.c:651 [inline]
 sock_close+0xd5/0x240 net/socket.c:1346
 __fput+0x234/0x930 fs/file_table.c:311
 task_work_run+0x125/0x1a0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fe7c254f749
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:00007ffc1ea3b9f8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fe7c27a7da0 RCX: 00007fe7c254f749
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fe7c27a7da0 R08: 000000000000f22c R09: 0000000e1ea3bcef
R10: 00000000005efb20 R11: 0000000000000246 R12: 00000000000be124
R13: 00007ffc1ea3baf0 R14: ffffffffffffffff R15: 00007ffc1ea3bb10
 </TASK>
Modules linked in:
---[ end trace a94aa37105c574c9 ]---
RIP: 0010:rose_transmit_link+0x2e/0x730 net/rose/rose_link.c:266
Code: 56 41 55 41 54 53 48 83 ec 18 48 89 f5 49 89 fc 49 be 00 00 00 00 00 fc ff df e8 dd 4a b5 f8 4c 8d 7d 32 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 5f 05 00 00 41 0f b6 1f 31 ff 89 de e8
RSP: 0018:ffffc90003adfc10 EFLAGS: 00010206
RAX: 0000000000000006 RBX: 0000000000000000 RCX: ffff8880218b8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88805bd5d8c0
RBP: 0000000000000000 R08: ffff8880218b8000 R09: 0000000000000008
R10: 000000000000000f R11: 0000000000000000 R12: ffff88805bd5d8c0
R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000032
FS:  000055557e6f3500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000006256e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	56                   	push   %rsi
   1:	41 55                	push   %r13
   3:	41 54                	push   %r12
   5:	53                   	push   %rbx
   6:	48 83 ec 18          	sub    $0x18,%rsp
   a:	48 89 f5             	mov    %rsi,%rbp
   d:	49 89 fc             	mov    %rdi,%r12
  10:	49 be 00 00 00 00 00 	movabs $0xdffffc0000000000,%r14
  17:	fc ff df
  1a:	e8 dd 4a b5 f8       	call   0xf8b54afc
  1f:	4c 8d 7d 32          	lea    0x32(%rbp),%r15
  23:	4c 89 f8             	mov    %r15,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 5f 05 00 00    	jne    0x596
  37:	41 0f b6 1f          	movzbl (%r15),%ebx
  3b:	31 ff                	xor    %edi,%edi
  3d:	89 de                	mov    %ebx,%esi
  3f:	e8                   	.byte 0xe8