IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
device syz_tun entered promiscuous mode
device batadv_slave_0 entered promiscuous mode
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8329 Comm: syz-executor186 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:hsr_check_carrier_and_operstate+0x3f/0x810 net/hsr/hsr_device.c:116
Code: f9 be 04 00 00 00 48 89 ef e8 cd a8 ff ff 49 89 c6 48 83 c0 10 48 89 c2 48 89 04 24 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 64 07 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b
RSP: 0018:ffff888095b36cb8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8880959d0700 RCX: ffffffff87ea889e
RDX: 0000000000000002 RSI: ffffffff87ea88a7 RDI: 0000000000000004
RBP: ffff888094445000 R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000001
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff8b0bcc40
FS: 00007eff32c97700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007eff32c97718 CR3: 000000009939a000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
hsr_netdev_notify+0x270/0x9f0 net/hsr/hsr_main.c:51
notifier_call_chain+0xc0/0x230 kernel/notifier.c:93
netdev_state_change net/core/dev.c:1349 [inline]
netdev_state_change+0x100/0x130 net/core/dev.c:1342
do_setlink+0x2c8a/0x3540 net/core/rtnetlink.c:2661
rtnl_group_changelink net/core/rtnetlink.c:2925 [inline]
rtnl_newlink+0xbc9/0x15c0 net/core/rtnetlink.c:3083
rtnetlink_rcv_msg+0x453/0xb80 net/core/rtnetlink.c:4782
netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2463
netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline]
netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351
netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xc3/0x120 net/socket.c:661
___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227
__sys_sendmsg net/socket.c:2265 [inline]
__do_sys_sendmsg net/socket.c:2274 [inline]
__se_sys_sendmsg net/socket.c:2272 [inline]
__x64_sys_sendmsg+0x132/0x220 net/socket.c:2272
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7eff32d134d9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 18 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007eff32c97208 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007eff32d944d8 RCX: 00007eff32d134d9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 00007eff32d944d0 R08: 0000000000000801 R09: 0000000000000000
R10: 0000000000001f11 R11: 0000000000000246 R12: 00007eff32d944dc
R13: 00007ffe21a894af R14: 00007eff32c97300 R15: 0000000000022000
Modules linked in:
---[ end trace 2b6335373dde5187 ]---
RIP: 0010:hsr_check_carrier_and_operstate+0x3f/0x810 net/hsr/hsr_device.c:116
Code: f9 be 04 00 00 00 48 89 ef e8 cd a8 ff ff 49 89 c6 48 83 c0 10 48 89 c2 48 89 04 24 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 64 07 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b
RSP: 0018:ffff888095b36cb8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8880959d0700 RCX: ffffffff87ea889e
RDX: 0000000000000002 RSI: ffffffff87ea88a7 RDI: 0000000000000004
RBP: ffff888094445000 R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000001
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff8b0bcc40
FS: 00007eff32c97700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007eff32c97718 CR3: 000000009939a000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: f9 stc
1: be 04 00 00 00 mov $0x4,%esi
6: 48 89 ef mov %rbp,%rdi
9: e8 cd a8 ff ff callq 0xffffa8db
e: 49 89 c6 mov %rax,%r14
11: 48 83 c0 10 add $0x10,%rax
15: 48 89 c2 mov %rax,%rdx
18: 48 89 04 24 mov %rax,(%rsp)
1c: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
23: fc ff df
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2e: 0f 85 64 07 00 00 jne 0x798
34: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
3b: fc ff df
3e: 49 rex.WB
3f: 8b .byte 0x8b