Oops: general protection fault, probably for non-canonical address 0xffec282c2c2c2c34: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: maybe wild-memory-access in range [0xff616161616161a0-0xff616161616161a7]
CPU: 0 UID: 0 PID: 30 Comm: kworker/u4:2 Not tainted 6.14.0-rc1-syzkaller-00034-g92514ef226f5 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: ipv6_addrconf addrconf_dad_work
RIP: 0010:__dev_set_rx_mode+0x1c2/0x280 net/core/dev.c:9092
Code: 8b 04 24 42 0f b6 04 20 84 c0 48 8b 5c 24 08 0f 85 b3 00 00 00 40 88 2b eb 05 e8 e9 78 00 f8 49 83 c6 40 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 f7 e8 3f 11 67 f8 49 8b 2e 48 85 ed 74
RSP: 0018:ffffc900005177e0 EFLAGS: 00010a02
RAX: 1fec2c2c2c2c2c34 RBX: ffff888042c70410 RCX: ffff888030eca440
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff89bee4d6 R09: 1ffff1100858e015
R10: dffffc0000000000 R11: ffffed100858e016 R12: dffffc0000000000
R13: ffff888042c70000 R14: ff616161616161a1 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4808733114 CR3: 000000003efa4000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__dev_mc_add net/core/dev_addr_lists.c:872 [inline]
dev_mc_add+0xca/0x110 net/core/dev_addr_lists.c:886
igmp6_group_added+0x1a4/0x710 net/ipv6/mcast.c:684
__ipv6_dev_mc_inc+0x8da/0xac0 net/ipv6/mcast.c:988
addrconf_join_solict net/ipv6/addrconf.c:2240 [inline]
addrconf_dad_begin net/ipv6/addrconf.c:4095 [inline]
addrconf_dad_work+0x44f/0x16a0 net/ipv6/addrconf.c:4223
process_one_work kernel/workqueue.c:3236 [inline]
process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317
worker_thread+0x870/0xd30 kernel/workqueue.c:3398
kthread+0x7a9/0x920 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__dev_set_rx_mode+0x1c2/0x280 net/core/dev.c:9092
Code: 8b 04 24 42 0f b6 04 20 84 c0 48 8b 5c 24 08 0f 85 b3 00 00 00 40 88 2b eb 05 e8 e9 78 00 f8 49 83 c6 40 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 f7 e8 3f 11 67 f8 49 8b 2e 48 85 ed 74
RSP: 0018:ffffc900005177e0 EFLAGS: 00010a02
RAX: 1fec2c2c2c2c2c34 RBX: ffff888042c70410 RCX: ffff888030eca440
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff89bee4d6 R09: 1ffff1100858e015
R10: dffffc0000000000 R11: ffffed100858e016 R12: dffffc0000000000
R13: ffff888042c70000 R14: ff616161616161a1 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4808733114 CR3: 000000003efa4000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 8b 04 24 mov (%rsp),%eax
3: 42 0f b6 04 20 movzbl (%rax,%r12,1),%eax
8: 84 c0 test %al,%al
a: 48 8b 5c 24 08 mov 0x8(%rsp),%rbx
f: 0f 85 b3 00 00 00 jne 0xc8
15: 40 88 2b mov %bpl,(%rbx)
18: eb 05 jmp 0x1f
1a: e8 e9 78 00 f8 call 0xf8007908
1f: 49 83 c6 40 add $0x40,%r14
23: 4c 89 f0 mov %r14,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 4c 89 f7 mov %r14,%rdi
34: e8 3f 11 67 f8 call 0xf8671178
39: 49 8b 2e mov (%r14),%rbp
3c: 48 85 ed test %rbp,%rbp
3f: 74 .byte 0x74