RBP: 00007f03bed151d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffc737f8a4f R14: 00007f03bed15300 R15: 0000000000022000 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8756 at net/core/dev.c:11075 dev_change_net_namespace+0xd59/0x1000 net/core/dev.c:11081 Modules linked in: CPU: 1 PID: 8756 Comm: syz-executor.4 Not tainted 5.12.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:dev_change_net_namespace+0xd59/0x1000 net/core/dev.c:11075 Code: 00 00 48 c7 c6 e0 a0 78 88 48 c7 c7 20 a1 78 88 c6 05 46 33 8c 04 01 e8 4d e8 96 01 0f 0b e9 6b f3 ff ff 0f 0b e9 f1 f8 ff ff <0f> 0b e9 d0 f8 ff ff 41 bd ea ff ff ff e9 51 f9 ff ff e8 90 b7 f3 RSP: 0018:ffffc900010a6dd0 EFLAGS: 00010282 RAX: 00000000fffffff4 RBX: ffffffff8a0e48c0 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: ffffffff87cb2c80 RDI: ffffffff88129000 RBP: ffff888111b34000 R08: 0000000000000001 R09: ffff888111b34603 R10: ffffed10223668c0 R11: 6637303030302052 R12: ffff888111b34b78 R13: ffff888111b34098 R14: 000000000000009d R15: 000000008a0e48c0 FS: 00007f03bed15700(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007feba3c47f78 CR3: 000000011c0a4004 CR4: 00000000001706f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_setlink+0x16b/0x2f10 net/core/rtnetlink.c:2613 __rtnl_newlink+0xab2/0x1350 net/core/rtnetlink.c:3376 rtnl_newlink+0x5a/0x90 net/core/rtnetlink.c:3491 rtnetlink_rcv_msg+0x32f/0x860 net/core/rtnetlink.c:5553 netlink_rcv_skb+0x118/0x370 net/netlink/af_netlink.c:2502 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline] netlink_unicast+0x42e/0x700 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x70e/0xbe0 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xab/0xe0 net/socket.c:674 ____sys_sendmsg+0x5bf/0x7a0 net/socket.c:2350 ___sys_sendmsg+0xd3/0x150 net/socket.c:2404 __sys_sendmsg+0xb2/0x140 net/socket.c:2433 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x464d29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f03bed15188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000055d040 RCX: 0000000000464d29 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000005 RBP: 00007f03bed151d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffc737f8a4f R14: 00007f03bed15300 R15: 0000000000022000 irq event stamp: 7689 hardirqs last enabled at (7701): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (7701): [] _raw_spin_unlock_irq+0x1f/0x80 kernel/locking/spinlock.c:199 hardirqs last disabled at (7742): [] __schedule+0x1225/0x2180 kernel/sched/core.c:4974 softirqs last enabled at (7786): [] invoke_softirq kernel/softirq.c:221 [inline] softirqs last enabled at (7786): [] __irq_exit_rcu kernel/softirq.c:422 [inline] softirqs last enabled at (7786): [] irq_exit_rcu+0x237/0x280 kernel/softirq.c:434 softirqs last disabled at (7799): [] invoke_softirq kernel/softirq.c:221 [inline] softirqs last disabled at (7799): [] __irq_exit_rcu kernel/softirq.c:422 [inline] softirqs last disabled at (7799): [] irq_exit_rcu+0x237/0x280 kernel/softirq.c:434 ---[ end trace 5b94d8da8452dabb ]---