general protection fault, probably for non-canonical address 0xdffffc000000004b: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000258-0x000000000000025f]
CPU: 0 PID: 3615 Comm: kworker/0:3 Not tainted 5.16.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: mld mld_dad_work
RIP: 0010:dev_index_hash net/core/dev.c:216 [inline]
RIP: 0010:dev_get_by_index_rcu+0x28/0x140 net/core/dev.c:801
Code: 00 00 41 55 41 54 55 89 f5 53 48 89 fb e8 60 9c 4c fa 48 8d bb 58 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 fc 00 00 00 48 8b 93 58 02 00 00 40 0f b6 c5 48
RSP: 0018:ffffc90000007740 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000100
RDX: 000000000000004b RSI: ffffffff872af640 RDI: 0000000000000258
RBP: 0000000000000003 R08: 0000000000000000 R09: ffffffff8ff9ba87
R10: ffffffff8737c18d R11: 0000000000000001 R12: ffff888022e75100
R13: 0000000000000003 R14: 000000000000010e R15: ffff88801dc9abf6
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f84c7263eb0 CR3: 000000007f785000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
____bpf_clone_redirect net/core/filter.c:2409 [inline]
bpf_clone_redirect+0x91/0x420 net/core/filter.c:2400
bpf_prog_bebbfe2050753572+0x56/0xcb8
__bpf_prog_run include/linux/filter.h:626 [inline]
bpf_prog_run_xdp include/linux/filter.h:801 [inline]
veth_xdp_rcv_skb+0x64e/0x1bc0 drivers/net/veth.c:768
veth_xdp_rcv+0x39b/0x9a0 drivers/net/veth.c:874
veth_poll+0x134/0x850 drivers/net/veth.c:910
__napi_poll+0xaf/0x440 net/core/dev.c:6364
napi_poll net/core/dev.c:6431 [inline]
net_rx_action+0x801/0xb40 net/core/dev.c:6518
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
do_softirq.part.0+0xde/0x130 kernel/softirq.c:459
do_softirq kernel/softirq.c:451 [inline]
__local_bh_enable_ip+0x102/0x120 kernel/softirq.c:383
local_bh_enable include/linux/bottom_half.h:33 [inline]
rcu_read_unlock_bh include/linux/rcupdate.h:758 [inline]
ip6_finish_output2+0x5bc/0x14f0 net/ipv6/ip6_output.c:127
__ip6_finish_output net/ipv6/ip6_output.c:191 [inline]
__ip6_finish_output+0x61e/0xe80 net/ipv6/ip6_output.c:170
ip6_finish_output+0x32/0x200 net/ipv6/ip6_output.c:201
NF_HOOK_COND include/linux/netfilter.h:296 [inline]
ip6_output+0x1e4/0x530 net/ipv6/ip6_output.c:224
dst_output include/net/dst.h:451 [inline]
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
mld_sendpack+0x9a1/0xe40 net/ipv6/mcast.c:1826
mld_send_initial_cr.part.0+0x194/0x230 net/ipv6/mcast.c:2245
mld_send_initial_cr net/ipv6/mcast.c:1232 [inline]
mld_dad_work+0x1d3/0x690 net/ipv6/mcast.c:2268
process_one_work+0x9b2/0x1660 kernel/workqueue.c:2298
worker_thread+0x65d/0x1130 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Modules linked in:
---[ end trace 49f66d9dc53d893e ]---
RIP: 0010:dev_index_hash net/core/dev.c:216 [inline]
RIP: 0010:dev_get_by_index_rcu+0x28/0x140 net/core/dev.c:801
Code: 00 00 41 55 41 54 55 89 f5 53 48 89 fb e8 60 9c 4c fa 48 8d bb 58 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 fc 00 00 00 48 8b 93 58 02 00 00 40 0f b6 c5 48
RSP: 0018:ffffc90000007740 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000100
RDX: 000000000000004b RSI: ffffffff872af640 RDI: 0000000000000258
RBP: 0000000000000003 R08: 0000000000000000 R09: ffffffff8ff9ba87
R10: ffffffff8737c18d R11: 0000000000000001 R12: ffff888022e75100
R13: 0000000000000003 R14: 000000000000010e R15: ffff88801dc9abf6
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f84c7263eb0 CR3: 000000007f785000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 41 55 push %r13
4: 41 54 push %r12
6: 55 push %rbp
7: 89 f5 mov %esi,%ebp
9: 53 push %rbx
a: 48 89 fb mov %rdi,%rbx
d: e8 60 9c 4c fa callq 0xfa4c9c72
12: 48 8d bb 58 02 00 00 lea 0x258(%rbx),%rdi
19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
20: fc ff df
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 fc 00 00 00 jne 0x130
34: 48 8b 93 58 02 00 00 mov 0x258(%rbx),%rdx
3b: 40 0f b6 c5 movzbl %bpl,%eax
3f: 48 rex.W