audit: type=1804 audit(1582243182.737:55): pid=8116 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.5" name="/root/syzkaller-testdir160095451/syzkaller.pXZnoC/12/file0" dev="sda1" ino=16600 res=1 audit: type=1804 audit(1582243182.797:56): pid=8119 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir439791679/syzkaller.HmBFAI/11/file0" dev="sda1" ino=16612 res=1 kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 8121 Comm: syz-executor.3 Not tainted 4.14.171-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88808a230280 task.stack: ffff88804f5e8000 RIP: 0010:hsr_dev_change_mtu+0x9f/0xd0 net/hsr/hsr_device.c:149 RSP: 0018:ffff88804f5eefd0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff888057c94d80 RCX: ffffc90007e30000 RDX: 0000000000000002 RSI: ffffffff8660375a RDI: 0000000000000010 RBP: ffff88804f5eeff0 R08: ffff88808a230280 R09: 0000000000000002 R10: 0000000000000000 R11: ffff88808a230280 R12: 00000000000005dc R13: ffff888057c95840 R14: 0000000000000000 R15: ffff88804f5ef080 FS: 00007fe6e0d7d700(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31622000 CR3: 00000000a48b7000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __dev_set_mtu net/core/dev.c:6877 [inline] dev_set_mtu+0x1f0/0x400 net/core/dev.c:6912 team_port_add drivers/net/team/team.c:1195 [inline] team_add_slave+0x851/0x1860 drivers/net/team/team.c:1964 do_set_master net/core/rtnetlink.c:1961 [inline] do_set_master+0x19f/0x200 net/core/rtnetlink.c:1936 do_setlink+0x99f/0x2c20 net/core/rtnetlink.c:2098 rtnl_newlink+0x11a7/0x1700 net/core/rtnetlink.c:2660 rtnetlink_rcv_msg+0x3da/0xb70 net/core/rtnetlink.c:4315 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4327 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline] netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c449 RSP: 002b:00007fe6e0d7cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fe6e0d7d6d4 RCX: 000000000045c449 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000004 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009d0 R14: 00000000004cc4a3 R15: 000000000076bf2c Code: e0 5b 41 5c 41 5d 41 5e 5d c3 e8 4d 21 27 fb eb de e8 06 91 fc fa 49 8d 7e 10 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 1d 49 8b 7e 10 ba 06 00 00 00 48 c7 c6 80 82 70 RIP: hsr_dev_change_mtu+0x9f/0xd0 net/hsr/hsr_device.c:149 RSP: ffff88804f5eefd0 ---[ end trace c5631175744fc644 ]---