tipc: Node number set to 2886997162
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 5278 Comm: kworker/1:4 Not tainted 6.12.0-rc3-syzkaller-00183-g6efbea77b390 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events tipc_net_finalize_work
RIP: 0010:tipc_mon_reinit_self+0x112/0x1e0 net/tipc/monitor.c:719
Code: e4 ba ff ff 48 8d 78 10 48 89 f9 48 c1 e9 03 0f b6 0c 29 84 c9 74 09 80 f9 03 0f 8e a9 00 00 00 8b 48 10 4c 89 f0 48 c1 e8 03 <0f> b6 04 28 84 c0 74 04 3c 03 7e 7e 41 89 0e 4c 89 ff e8 47 2d 6e
RSP: 0000:ffffc900041a7bd0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000ac1414aa
RDX: 0000000000000000 RSI: ffffffff8b6cd340 RDI: ffff888030598010
RBP: dffffc0000000000 R08: 0000000000000000 R09: fffffbfff20be951
R10: ffffffff905f4a8f R11: 0000000000000000 R12: 0000000000000007
R13: fffffbfff20c2ac3 R14: 0000000000000000 R15: ffff88802ff19010
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe16814af98 CR3: 000000000df7c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
tipc_net_finalize+0x10c/0x180 net/tipc/net.c:140
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:tipc_mon_reinit_self+0x112/0x1e0 net/tipc/monitor.c:719
Code: e4 ba ff ff 48 8d 78 10 48 89 f9 48 c1 e9 03 0f b6 0c 29 84 c9 74 09 80 f9 03 0f 8e a9 00 00 00 8b 48 10 4c 89 f0 48 c1 e8 03 <0f> b6 04 28 84 c0 74 04 3c 03 7e 7e 41 89 0e 4c 89 ff e8 47 2d 6e
RSP: 0000:ffffc900041a7bd0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000ac1414aa
RDX: 0000000000000000 RSI: ffffffff8b6cd340 RDI: ffff888030598010
RBP: dffffc0000000000 R08: 0000000000000000 R09: fffffbfff20be951
R10: ffffffff905f4a8f R11: 0000000000000000 R12: 0000000000000007
R13: fffffbfff20c2ac3 R14: 0000000000000000 R15: ffff88802ff19010
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe16814af98 CR3: 000000000df7c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
0: ba ff ff 48 8d mov $0x8d48ffff,%edx
5: 78 10 js 0x17
7: 48 89 f9 mov %rdi,%rcx
a: 48 c1 e9 03 shr $0x3,%rcx
e: 0f b6 0c 29 movzbl (%rcx,%rbp,1),%ecx
12: 84 c9 test %cl,%cl
14: 74 09 je 0x1f
16: 80 f9 03 cmp $0x3,%cl
19: 0f 8e a9 00 00 00 jle 0xc8
1f: 8b 48 10 mov 0x10(%rax),%ecx
22: 4c 89 f0 mov %r14,%rax
25: 48 c1 e8 03 shr $0x3,%rax
* 29: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax <-- trapping instruction
2d: 84 c0 test %al,%al
2f: 74 04 je 0x35
31: 3c 03 cmp $0x3,%al
33: 7e 7e jle 0xb3
35: 41 89 0e mov %ecx,(%r14)
38: 4c 89 ff mov %r15,%rdi
3b: e8 .byte 0xe8
3c: 47 rex.RXB
3d: 2d .byte 0x2d
3e: 6e outsb %ds:(%rsi),(%dx)