audit: type=1804 audit(1617435637.814:26): pid=15280 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.1" name="/root/syzkaller-testdir271208922/syzkaller.Uy0KL5/60/bus" dev="sda1" ino=13991 res=1
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
syz-executor.1 (15279) used greatest stack depth: 24136 bytes left
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 15257 Comm: syz-executor.4 Not tainted 4.14.228-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88805085e6c0 task.stack: ffff8880426d0000
RIP: 0010:nla_len include/net/netlink.h:706 [inline]
RIP: 0010:nla_parse_nested include/net/netlink.h:765 [inline]
RIP: 0010:nl802154_del_llsec_dev+0x13b/0x2e0 net/ieee802154/nl802154.c:1783
RSP: 0018:ffff8880426d76e0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88823a0d2040 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff86dab015 RDI: ffff88823a0d2158
RBP: 1ffff110084daede R08: 0000000000000000 R09: ffff8880426d7990
R10: 0000000000000000 R11: ffff88805085e6c0 R12: ffff8880ab803340
R13: ffff8880ab968f10 R14: ffffffff886f38a0 R15: ffff8880a5d91ac0
FS:  00007ffa364af700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f12d8fcd000 CR3: 000000009cc0f000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 genl_family_rcv_msg+0x572/0xb20 net/netlink/genetlink.c:600
 genl_rcv_msg+0xaf/0x140 net/netlink/genetlink.c:625
 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2433
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:636
 netlink_unicast_kernel net/netlink/af_netlink.c:1287 [inline]
 netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1313
 netlink_sendmsg+0x62e/0xb80 net/netlink/af_netlink.c:1878
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xb5/0x100 net/socket.c:656
 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062
 __sys_sendmsg+0xa3/0x120 net/socket.c:2096
 SYSC_sendmsg net/socket.c:2107 [inline]
 SyS_sendmsg+0x27/0x40 net/socket.c:2103
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x466459
RSP: 002b:00007ffa364af188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000007
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffd639daaef R14: 00007ffa364af300 R15: 0000000000022000
Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 96 01 00 00 48 8b 93 18 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 d1 48 c1 e9 03 <0f> b6 0c 01 48 89 d0 83 e0 07 83 c0 01 38 c8 7c 08 84 c9 0f 85 
RIP: nla_len include/net/netlink.h:706 [inline] RSP: ffff8880426d76e0
RIP: nla_parse_nested include/net/netlink.h:765 [inline] RSP: ffff8880426d76e0
RIP: nl802154_del_llsec_dev+0x13b/0x2e0 net/ieee802154/nl802154.c:1783 RSP: ffff8880426d76e0
audit: type=1804 audit(1617435637.864:27): pid=15294 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.1" name="/root/syzkaller-testdir271208922/syzkaller.Uy0KL5/60/bus" dev="sda1" ino=13991 res=1
xt_CONNSECMARK: cannot load conntrack support for proto=2
---[ end trace 5225bd565a1f5e10 ]---
*** Guest State ***
CR0: actual=0x0000000000000030, shadow=0x0000000060000010, gh_mask=fffffffffffffff7