[ 1.920227] ip (249) used greatest stack depth: 12344 bytes left [ 2.390391] br1: port 1(veth1) entered blocking state [ 2.390479] br1: port 1(veth1) entered disabled state [ 2.390545] veth1: entered allmulticast mode [ 2.390634] veth1: entered promiscuous mode [ 2.411778] br1: port 1(veth1) entered blocking state [ 2.411892] br1: port 1(veth1) entered forwarding state [ 2.423503] br1: port 2(veth2) entered blocking state [ 2.423568] br1: port 2(veth2) entered disabled state [ 2.423623] veth2: entered allmulticast mode [ 2.423704] veth2: entered promiscuous mode [ 2.445459] br1: port 2(veth2) entered blocking state [ 2.445563] br1: port 2(veth2) entered forwarding state [ 20.263073] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 20.263161] #PF: supervisor write access in kernel mode [ 20.263197] #PF: error_code(0x0002) - not-present page [ 20.263233] PGD 7aa8067 P4D 7aa8067 PUD 7aaa067 PMD 0 [ 20.263275] Oops: Oops: 0002 [#1] SMP [ 20.263311] CPU: 0 UID: 0 PID: 852 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 20.263403] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.263450] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 20.263494] Code: 83 e6 01 41 57 41 56 4c 8d 77 20 41 55 41 54 41 89 f4 55 48 89 d5 53 48 89 fb 9c 58 fa 48 89 45 00 45 85 e4 0f 85 8a 00 00 00 48 0f ba 2b 00 41 0f 92 c5 72 0e 5b 44 89 e8 5d 41 5c 41 5d 41 [ 20.263608] RSP: 0018:ffffaa8e8055f6b8 EFLAGS: 00010046 [ 20.263658] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000004 [ 20.263711] RDX: ffffaa8e8055f6f0 RSI: 0000000000000000 RDI: 0000000000000000 [ 20.263764] RBP: ffffaa8e8055f6f0 R08: ffff8efc413a3673 R09: ffffffffb366cc80 [ 20.263816] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 20.263869] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 20.263932] FS: 00007f9da3041800(0000) GS:ffff8efccadda000(0000) knlGS:0000000000000000 [ 20.263989] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.264033] CR2: 0000000000000000 CR3: 0000000007584006 CR4: 0000000000772ef0 [ 20.264094] PKRU: 55555554 [ 20.264113] Call Trace: [ 20.264137] [ 20.264164] __cancel_work+0x29/0xe0 [ 20.264202] ? linkwatch_urgent_event+0x2f/0xb0 [ 20.264243] __cancel_work_sync+0x16/0x80 [ 20.264277] __dev_close_many+0x11b/0x280 [ 20.264311] __dev_change_flags+0xed/0x220 [ 20.264344] netif_change_flags+0x25/0x60 [ 20.264373] do_setlink.constprop.0+0x2fe/0x1120 [ 20.264415] ? __nla_validate_parse+0x5d/0xe70 [ 20.264462] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 20.264504] rtnl_newlink+0x7fa/0xbc0 [ 20.264537] ? virtio_fs_enqueue_req+0x352/0x570 [ 20.264578] ? netdev_run_todo+0x63/0x550 [ 20.264612] ? rtnl_setlink+0x2c0/0x2c0 [ 20.264651] rtnetlink_rcv_msg+0x358/0x400 [ 20.264681] ? get_page_from_freelist+0x15b4/0x1770 [ 20.264722] ? rtnl_calcit.isra.0+0x110/0x110 [ 20.264758] netlink_rcv_skb+0x57/0x100 [ 20.264793] netlink_unicast+0x252/0x380 [ 20.264824] ? __alloc_skb+0xfc/0x1e0 [ 20.264857] netlink_sendmsg+0x1be/0x3e0 [ 20.264894] ____sys_sendmsg+0x132/0x260 [ 20.264927] ? copy_msghdr_from_user+0x6c/0xa0 [ 20.264969] ___sys_sendmsg+0x87/0xd0 [ 20.264998] ? do_wp_page+0x369/0xe90 [ 20.265031] ? ___pte_offset_map+0x1b/0xd0 [ 20.265065] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 20.265106] ? fsnotify_grab_connector+0x48/0x80 [ 20.265146] ? fsnotify_destroy_marks+0x29/0x150 [ 20.265186] __sys_sendmsg+0x71/0xd0 [ 20.265219] do_syscall_64+0xa4/0xfd0 [ 20.265252] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 20.265293] RIP: 0033:0x7f9da320f1d7 [ 20.265328] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 20.265445] RSP: 002b:00007ffeea1a45a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 20.265498] RAX: ffffffffffffffda RBX: 00007ffeea1a4cd0 RCX: 00007f9da320f1d7 [ 20.265551] RDX: 0000000000000000 RSI: 00007ffeea1a4610 RDI: 0000000000000005 [ 20.265606] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 20.265668] R10: 00007f9da310bf60 R11: 0000000000000246 R12: 0000000000000003 [ 20.265722] R13: 00000000691cd657 R14: 0000000000499600 R15: 0000000000000000 [ 20.265781] [ 20.265801] Modules linked in: bridge stp llc vrf veth [ 20.265847] CR2: 0000000000000000 [ 20.265875] ---[ end trace 0000000000000000 ]--- [ 20.265919] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 20.265962] Code: 83 e6 01 41 57 41 56 4c 8d 77 20 41 55 41 54 41 89 f4 55 48 89 d5 53 48 89 fb 9c 58 fa 48 89 45 00 45 85 e4 0f 85 8a 00 00 00 48 0f ba 2b 00 41 0f 92 c5 72 0e 5b 44 89 e8 5d 41 5c 41 5d 41 [ 20.266079] RSP: 0018:ffffaa8e8055f6b8 EFLAGS: 00010046 [ 20.266116] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000004 [ 20.266168] RDX: ffffaa8e8055f6f0 RSI: 0000000000000000 RDI: 0000000000000000 [ 20.266221] RBP: ffffaa8e8055f6f0 R08: ffff8efc413a3673 R09: ffffffffb366cc80 [ 20.266274] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 20.266326] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 20.266381] FS: 00007f9da3041800(0000) GS:ffff8efccadda000(0000) knlGS:0000000000000000 [ 20.266438] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.266482] CR2: 0000000000000000 CR3: 0000000007584006 CR4: 0000000000772ef0 [ 20.266537] PKRU: 55555554 [ 20.266557] note: ip[852] exited with irqs disabled [ 20.266771] ip (852) used greatest stack depth: 11592 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr