[ 2.264012] ip (231) used greatest stack depth: 12336 bytes left [ 4.562672] BUG: kernel NULL pointer dereference, address: 0000000000000030 [ 4.562730] #PF: supervisor read access in kernel mode [ 4.562762] #PF: error_code(0x0000) - not-present page [ 4.562794] PGD 4975067 P4D 6e68067 PUD 638c067 PMD 0 [ 4.562827] Oops: Oops: 0000 [#1] SMP [ 4.562850] CPU: 0 UID: 0 PID: 11 Comm: kworker/0:1 Not tainted 7.0.0-rc6-virtme #1 PREEMPT(lazy) [ 4.562900] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4.562936] Workqueue: mld mld_dad_work [ 4.562963] RIP: 0010:mroute6_is_socket+0x10/0x20 [ 4.562995] Code: 44 00 00 c3 66 0f 1f 44 00 00 f3 0f 1e fa 0f 1f 44 00 00 8b 87 d8 0a 00 00 c3 f3 0f 1e fa 0f 1f 44 00 00 48 8b 87 c8 0a 00 00 <48> 83 78 30 00 0f 95 c0 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa 48 8b [ 4.563086] RSP: 0018:ff4a3b4b0005fc70 EFLAGS: 00010202 [ 4.563113] RAX: 0000000000000000 RBX: ff2a7d82492db9c0 RCX: 0000000000000000 [ 4.563155] RDX: ff2a7d8241830100 RSI: ff2a7d8241830100 RDI: ff2a7d82492db9c0 [ 4.563188] RBP: ff2a7d82419aee40 R08: ff2a7d824611c000 R09: ff2a7d8241830100 [ 4.563232] R10: ff2a7d82413d0828 R11: ff2a7d824634e000 R12: ff2a7d82460af300 [ 4.563272] R13: ff2a7d82413d0810 R14: ff2a7d82419aee40 R15: ff2a7d824611c000 [ 4.563315] FS: 0000000000000000(0000) GS:ff2a7d82dc24c000(0000) knlGS:0000000000000000 [ 4.563361] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4.563390] CR2: 0000000000000030 CR3: 00000000063b5002 CR4: 0000000000771ef0 [ 4.563432] PKRU: 55555554 [ 4.563445] Call Trace: [ 4.563462] [ 4.563476] ip6_finish_output2+0x50b/0x810 [ 4.563501] ? ip6_mc_hdr.constprop.0+0x53/0xd0 [ 4.563531] ip6_finish_output+0x1d2/0x360 [ 4.563549] ip6_output+0x82/0x170 [ 4.563573] mld_sendpack+0x1dc/0x2a0 [ 4.563590] mld_dad_work+0x44/0x160 [ 4.563614] process_one_work+0x15f/0x360 [ 4.563637] worker_thread+0x16e/0x2d0 [ 4.563659] ? rescuer_thread+0x510/0x510 [ 4.563682] kthread+0xde/0x110 [ 4.563705] ? kthread_park+0x90/0x90 [ 4.563723] ret_from_fork+0x199/0x270 [ 4.563746] ? kthread_park+0x90/0x90 [ 4.563774] ret_from_fork_asm+0x11/0x20 [ 4.563796] [ 4.563810] Modules linked in: [ 4.563833] CR2: 0000000000000030 [ 4.563855] ---[ end trace 0000000000000000 ]--- [ 4.563878] RIP: 0010:mroute6_is_socket+0x10/0x20 [ 4.563905] Code: 44 00 00 c3 66 0f 1f 44 00 00 f3 0f 1e fa 0f 1f 44 00 00 8b 87 d8 0a 00 00 c3 f3 0f 1e fa 0f 1f 44 00 00 48 8b 87 c8 0a 00 00 <48> 83 78 30 00 0f 95 c0 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa 48 8b [ 4.564007] RSP: 0018:ff4a3b4b0005fc70 EFLAGS: 00010202 [ 4.564035] RAX: 0000000000000000 RBX: ff2a7d82492db9c0 RCX: 0000000000000000 [ 4.564072] RDX: ff2a7d8241830100 RSI: ff2a7d8241830100 RDI: ff2a7d82492db9c0 [ 4.564113] RBP: ff2a7d82419aee40 R08: ff2a7d824611c000 R09: ff2a7d8241830100 [ 4.564157] R10: ff2a7d82413d0828 R11: ff2a7d824634e000 R12: ff2a7d82460af300 [ 4.564203] R13: ff2a7d82413d0810 R14: ff2a7d82419aee40 R15: ff2a7d824611c000 [ 4.564249] FS: 0000000000000000(0000) GS:ff2a7d82dc24c000(0000) knlGS:0000000000000000 [ 4.564290] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4.564317] CR2: 0000000000000030 CR3: 00000000063b5002 CR4: 0000000000771ef0 [ 4.564356] PKRU: 55555554 [ 4.564370] note: kworker/0:1[11] exited with irqs disabled WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr