[ 2.025638] ip (249) used greatest stack depth: 12520 bytes left [ 2.283742] 8021q: 802.1Q VLAN Support v1.8 [ 2.446131] br0: port 1(veth1) entered blocking state [ 2.446208] br0: port 1(veth1) entered disabled state [ 2.446281] veth1: entered allmulticast mode [ 2.446386] veth1: entered promiscuous mode [ 2.456286] br0: port 2(veth2) entered blocking state [ 2.456413] br0: port 2(veth2) entered disabled state [ 2.456511] veth2: entered allmulticast mode [ 2.456614] veth2: entered promiscuous mode [ 2.476496] br0: port 1(veth1) entered blocking state [ 2.476556] br0: port 1(veth1) entered forwarding state [ 2.486509] br0: port 2(veth2) entered blocking state [ 2.486604] br0: port 2(veth2) entered forwarding state [ 27.935620] GACT probability NOT on [ 27.936902] tc (367) used greatest stack depth: 12400 bytes left [ 50.205578] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 50.205689] #PF: supervisor write access in kernel mode [ 50.205736] #PF: error_code(0x0002) - not-present page [ 50.205790] PGD 7d2d067 P4D 7d2d067 PUD 2f4a067 PMD 0 [ 50.205842] Oops: Oops: 0002 [#1] SMP [ 50.205884] CPU: 2 UID: 0 PID: 585 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 50.205974] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 50.206034] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 50.206111] 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 [ 50.206274] RSP: 0018:ffffb8be00b5b630 EFLAGS: 00010046 [ 50.206330] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000c00 [ 50.206393] RDX: ffffb8be00b5b668 RSI: 0000000000000000 RDI: 0000000000000000 [ 50.206461] RBP: ffffb8be00b5b668 R08: ffff8cfbc3083673 R09: 0000000000000002 [ 50.206539] R10: ffff8cfbfed28640 R11: ffff8cfbc3082e90 R12: 0000000000000000 [ 50.206605] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 50.206682] FS: 00007f31d6b0e800(0000) GS:ffff8cfc4c0da000(0000) knlGS:0000000000000000 [ 50.206755] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.206821] CR2: 0000000000000000 CR3: 0000000004d53005 CR4: 0000000000772ef0 [ 50.206889] PKRU: 55555554 [ 50.206917] Call Trace: [ 50.206944] [ 50.206977] __cancel_work+0x29/0xe0 [ 50.207028] ? linkwatch_urgent_event+0x2f/0xb0 [ 50.207089] __cancel_work_sync+0x16/0x80 [ 50.207130] __dev_close_many+0x11b/0x280 [ 50.207178] __dev_change_flags+0xed/0x220 [ 50.207226] netif_change_flags+0x25/0x60 [ 50.207267] dev_change_flags+0x40/0x80 [ 50.207309] cycle_netdev+0x36/0x70 [vrf] [ 50.207349] vrf_del_slave+0x29/0x30 [vrf] [ 50.207389] do_set_master+0x68/0x170 [ 50.207431] do_setlink.constprop.0+0x320/0x1120 [ 50.207486] ? __nla_validate_parse+0x5d/0xe70 [ 50.207539] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 50.207599] rtnl_newlink+0x7fa/0xbc0 [ 50.207640] ? virtio_fs_enqueue_req+0x352/0x570 [ 50.207705] ? netdev_run_todo+0x63/0x550 [ 50.207745] ? rtnl_setlink+0x2c0/0x2c0 [ 50.207785] rtnetlink_rcv_msg+0x358/0x400 [ 50.207832] ? get_page_from_freelist+0x15b4/0x1770 [ 50.207890] ? rtnl_calcit.isra.0+0x110/0x110 [ 50.207943] netlink_rcv_skb+0x57/0x100 [ 50.207989] netlink_unicast+0x252/0x380 [ 50.208029] ? __alloc_skb+0xfc/0x1e0 [ 50.208075] netlink_sendmsg+0x1be/0x3e0 [ 50.208117] ____sys_sendmsg+0x132/0x260 [ 50.208164] ? copy_msghdr_from_user+0x6c/0xa0 [ 50.208218] ___sys_sendmsg+0x87/0xd0 [ 50.208260] ? do_wp_page+0x369/0xe90 [ 50.208302] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 50.208353] ? fsnotify_grab_connector+0x48/0x80 [ 50.208410] ? fsnotify_destroy_marks+0x29/0x150 [ 50.208463] __sys_sendmsg+0x71/0xd0 [ 50.208511] do_syscall_64+0xa4/0xfd0 [ 50.208553] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 50.208604] RIP: 0033:0x7f31d6cdc1d7 [ 50.208645] 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 [ 50.208811] RSP: 002b:00007ffdfcd571f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 50.208891] RAX: ffffffffffffffda RBX: 00007ffdfcd57920 RCX: 00007f31d6cdc1d7 [ 50.208966] RDX: 0000000000000000 RSI: 00007ffdfcd57260 RDI: 0000000000000005 [ 50.209038] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 50.209105] R10: 0000000021723910 R11: 0000000000000246 R12: 0000000000000004 [ 50.209178] R13: 00000000691cbebf R14: 0000000000499600 R15: 0000000000000000 [ 50.209246] [ 50.209274] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc 8021q vrf veth [ 50.209375] CR2: 0000000000000000 [ 50.209416] ---[ end trace 0000000000000000 ]--- [ 50.209473] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 50.209527] 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 [ 50.209699] RSP: 0018:ffffb8be00b5b630 EFLAGS: 00010046 [ 50.209748] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000c00 [ 50.209812] RDX: ffffb8be00b5b668 RSI: 0000000000000000 RDI: 0000000000000000 [ 50.209883] RBP: ffffb8be00b5b668 R08: ffff8cfbc3083673 R09: 0000000000000002 [ 50.209952] R10: ffff8cfbfed28640 R11: ffff8cfbc3082e90 R12: 0000000000000000 [ 50.210029] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 50.210103] FS: 00007f31d6b0e800(0000) GS:ffff8cfc4c0da000(0000) knlGS:0000000000000000 [ 50.210177] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.210239] CR2: 0000000000000000 CR3: 0000000004d53005 CR4: 0000000000772ef0 [ 50.210311] PKRU: 55555554 [ 50.210340] note: ip[585] exited with irqs disabled [ 50.210673] ip (585) used greatest stack depth: 11464 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr