[ 1.776117] netdevsim netdevsim1337 eni1337np2: renamed from eth0 [ 7.080053] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 7.080165] #PF: supervisor write access in kernel mode [ 7.080217] #PF: error_code(0x0002) - not-present page [ 7.080264] PGD 2eb5067 P4D 2eb5067 PUD 4480067 PMD 0 [ 7.080316] Oops: Oops: 0002 [#1] SMP [ 7.080376] CPU: 2 UID: 0 PID: 572 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 7.080457] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 7.080517] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 7.080597] 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 [ 7.080743] RSP: 0018:ffffbd36407476b8 EFLAGS: 00010046 [ 7.080790] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 000000008010000d [ 7.080857] RDX: ffffbd36407476f0 RSI: 0000000000000000 RDI: 0000000000000000 [ 7.080923] RBP: ffffbd36407476f0 R08: 0000000000000001 R09: ffffffffab135300 [ 7.080990] R10: ffff9d2d83094000 R11: 0000000000000001 R12: 0000000000000000 [ 7.081057] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 7.081126] FS: 00007f9d773b9800(0000) GS:ffff9d2e12ad9000(0000) knlGS:0000000000000000 [ 7.081198] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.081253] CR2: 0000000000000000 CR3: 000000000334c006 CR4: 0000000000772ef0 [ 7.081322] PKRU: 55555554 [ 7.081347] Call Trace: [ 7.081379] [ 7.081416] __cancel_work+0x29/0xe0 [ 7.081456] __cancel_work_sync+0x16/0x80 [ 7.081492] __dev_close_many+0x113/0x2b0 [ 7.081549] __dev_change_flags+0xed/0x220 [ 7.081592] netif_change_flags+0x25/0x60 [ 7.081630] do_setlink.constprop.0+0x2fd/0x1170 [ 7.081686] ? __nla_validate_parse+0x5d/0xe70 [ 7.081746] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 7.081802] rtnl_newlink+0x7fa/0xc00 [ 7.081840] ? virtio_fs_enqueue_req+0x352/0x570 [ 7.081902] ? netdev_run_todo+0x63/0x550 [ 7.081939] ? rtnl_setlink+0x2c0/0x2c0 [ 7.081976] rtnetlink_rcv_msg+0x358/0x400 [ 7.082013] ? get_page_from_freelist+0x15b4/0x1770 [ 7.082066] ? rtnl_calcit.isra.0+0x110/0x110 [ 7.082112] netlink_rcv_skb+0x57/0x100 [ 7.082166] netlink_unicast+0x252/0x380 [ 7.082204] ? __alloc_skb+0xfc/0x1e0 [ 7.082246] netlink_sendmsg+0x1be/0x3e0 [ 7.082284] ____sys_sendmsg+0x132/0x260 [ 7.082323] ? copy_msghdr_from_user+0x6c/0xa0 [ 7.082372] ___sys_sendmsg+0x87/0xd0 [ 7.082412] ? do_wp_page+0x369/0xe90 [ 7.082454] ? ___pte_offset_map+0x1b/0xd0 [ 7.082491] ? __handle_mm_fault+0x4e6/0xe50 [ 7.082538] ? fsnotify_grab_connector+0x48/0x80 [ 7.082594] ? fsnotify_destroy_marks+0x29/0x150 [ 7.082641] __sys_sendmsg+0x71/0xd0 [ 7.082679] do_syscall_64+0xa4/0xfd0 [ 7.082729] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 7.082788] RIP: 0033:0x7f9d775871d7 [ 7.082831] 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 [ 7.082977] RSP: 002b:00007ffd0f9abeb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 7.083044] RAX: ffffffffffffffda RBX: 00007ffd0f9ac5e0 RCX: 00007f9d775871d7 [ 7.083111] RDX: 0000000000000000 RSI: 00007ffd0f9abf20 RDI: 0000000000000005 [ 7.083177] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 7.083244] R10: 00007f9d77483f60 R11: 0000000000000246 R12: 0000000000000003 [ 7.083311] R13: 00000000691cc3c6 R14: 0000000000499600 R15: 0000000000000000 [ 7.083379] [ 7.083404] Modules linked in: netdevsim [ 7.083452] CR2: 0000000000000000 [ 7.083488] ---[ end trace 0000000000000000 ]--- [ 7.083534] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 7.083581] 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 [ 7.083729] RSP: 0018:ffffbd36407476b8 EFLAGS: 00010046 [ 7.083776] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 000000008010000d [ 7.083842] RDX: ffffbd36407476f0 RSI: 0000000000000000 RDI: 0000000000000000 [ 7.083908] RBP: ffffbd36407476f0 R08: 0000000000000001 R09: ffffffffab135300 [ 7.083974] R10: ffff9d2d83094000 R11: 0000000000000001 R12: 0000000000000000 [ 7.084041] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 7.084108] FS: 00007f9d773b9800(0000) GS:ffff9d2e12ad9000(0000) knlGS:0000000000000000 [ 7.084175] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.084230] CR2: 0000000000000000 CR3: 000000000334c006 CR4: 0000000000772ef0 [ 7.084298] PKRU: 55555554 [ 7.084323] note: ip[572] exited with irqs disabled [ 7.084585] ip (572) used greatest stack depth: 11592 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr