general protection fault, probably for non-canonical address 0xdffffc0000000070: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000380-0x0000000000000387]
CPU: 0 PID: 2974 Comm: udevd Not tainted 6.0.0-syzkaller-02734-g0326074ff465 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101
Code: 48 c1 ea 03 80 3c 02 00 0f 85 06 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 20 48 8d bd 80 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ea 00 00 00 4c 8b bd 80 03 00 00 e9 77 fe ff ff
RSP: 0018:ffffc90000007b00 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88814b16b000 RCX: 0000000000000100
RDX: 0000000000000070 RSI: ffffffff88514482 RDI: 0000000000000380
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88814b16b000
R13: 0000000000000078 R14: ffff888026499640 R15: 0000000000000010
FS:  00007f066de90840(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5d501cbfc0 CR3: 00000000258d3000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rose_transmit_clear_request+0x1d5/0x290 net/rose/rose_link.c:255
 rose_rx_call_request+0x4c0/0x1bc0 net/rose/af_rose.c:1009
 rose_loopback_timer+0x19e/0x590 net/rose/rose_loopback.c:111
 call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474
 expire_timers kernel/time/timer.c:1519 [inline]
 __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790
 __run_timers kernel/time/timer.c:1768 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803
 __do_softirq+0x1d0/0x9c8 kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x0/0x20 kernel/kcov.c:304
Code: 2e 0f 1f 84 00 00 00 00 00 90 48 8b 0c 24 89 f2 89 fe bf 05 00 00 00 e9 9e fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 <48> 8b 0c 24 48 89 f2 48 89 fe bf 07 00 00 00 e9 7c fe ff ff 66 66
RSP: 0018:ffffc9000bed7ce8 EFLAGS: 00040246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88807d24bb00 RSI: 0000000000000fe0 RDI: 0000000000000007
RBP: 0000000000000fe0 R08: 0000000000000006 R09: 00007f066dbbb75a
R10: 00007fffffffe020 R11: 0000000000000000 R12: 00007f066dbbb75a
R13: ffff88807e69b320 R14: ffff88807e69b320 R15: ffffffff8de04ad0
 do_strncpy_from_user lib/strncpy_from_user.c:37 [inline]
 strncpy_from_user+0x11a/0x3c0 lib/strncpy_from_user.c:139
 getname_flags.part.0+0x95/0x4f0 fs/namei.c:150
 getname_flags+0x9a/0xe0 include/linux/audit.h:320
 vfs_fstatat+0x73/0xb0 fs/stat.c:266
 __do_sys_newfstatat+0x94/0x120 fs/stat.c:437
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f066db251da
Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 0b 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 90 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 69 fc 0c 00 f7
RSP: 002b:00007fffaaf52c78 EFLAGS: 00000202 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 0000558997fb2300 RCX: 00007f066db251da
RDX: 00007fffaaf52c80 RSI: 00007f066dbbb75a RDI: 000000000000000d
RBP: 000000000000000d R08: 0000000000090800 R09: 0000558997f9f0d0
R10: 0000000000001000 R11: 0000000000000202 R12: 00007fffaaf52c80
R13: 00000000000000ff R14: 00007fffaaf52d70 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101
Code: 48 c1 ea 03 80 3c 02 00 0f 85 06 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 20 48 8d bd 80 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ea 00 00 00 4c 8b bd 80 03 00 00 e9 77 fe ff ff
RSP: 0018:ffffc90000007b00 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88814b16b000 RCX: 0000000000000100
RDX: 0000000000000070 RSI: ffffffff88514482 RDI: 0000000000000380
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88814b16b000
R13: 0000000000000078 R14: ffff888026499640 R15: 0000000000000010
FS:  00007f066de90840(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5d501cbfc0 CR3: 00000000258d3000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	48 c1 ea 03          	shr    $0x3,%rdx
   4:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   8:	0f 85 06 01 00 00    	jne    0x114
   e:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  15:	fc ff df
  18:	48 8b 6b 20          	mov    0x20(%rbx),%rbp
  1c:	48 8d bd 80 03 00 00 	lea    0x380(%rbp),%rdi
  23:	48 89 fa             	mov    %rdi,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 ea 00 00 00    	jne    0x11e
  34:	4c 8b bd 80 03 00 00 	mov    0x380(%rbp),%r15
  3b:	e9 77 fe ff ff       	jmpq   0xfffffeb7