Enabling of bearer rejected, already enabled Enabling of bearer rejected, already enabled Enabling of bearer rejected, already enabled kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 7680 Comm: kworker/u4:6 Not tainted 5.0.0-rc7+ #86 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net RIP: 0010:__skb_unlink include/linux/skbuff.h:1924 [inline] RIP: 0010:__skb_dequeue include/linux/skbuff.h:1941 [inline] RIP: 0010:__skb_queue_purge include/linux/skbuff.h:2655 [inline] RIP: 0010:gro_cells_destroy net/core/gro_cells.c:89 [inline] RIP: 0010:gro_cells_destroy+0x19d/0x360 net/core/gro_cells.c:78 Code: 03 42 80 3c 20 00 0f 85 53 01 00 00 48 8d 7a 08 49 8b 47 08 49 c7 07 00 00 00 00 48 89 f9 49 c7 47 08 00 00 00 00 48 c1 e9 03 <42> 80 3c 21 00 0f 85 10 01 00 00 48 89 c1 48 89 42 08 48 c1 e9 03 RSP: 0018:ffff888058f579a8 EFLAGS: 00010a06 RAX: ffffffe8ffffd6e1 RBX: ffffe8ffffd6e0c0 RCX: 179ffffd1ffffadd RDX: bcffffe8ffffd6e0 RSI: ffffffff8582a9ea RDI: bcffffe8ffffd6e8 RBP: ffff888058f57a08 R08: ffff888058f4a680 R09: fffffbfff1263415 R10: fffffbfff1263414 R11: ffffffff8931a0a3 R12: dffffc0000000000 R13: 0000000000000001 R14: ffffe8ffffd6e0d0 R15: ffffe8ffffd6e0c1 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe7ae159028 CR3: 000000008ac0f000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000060000002 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip_tunnel_dev_free+0x19/0x60 net/ipv4/ip_tunnel.c:966 netdev_run_todo+0x51c/0x7d0 net/core/dev.c:8888 net_ratelimit: 26 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 rtnl_unlock+0xe/0x10 net/core/rtnetlink.c:117 protocol 88fb is buggy, dev hsr_slave_1 ip_tunnel_delete_nets+0x423/0x5f0 net/ipv4/ip_tunnel.c:1080 ipgre_tap_exit_batch_net+0x23/0x30 net/ipv4/ip_gre.c:1651 ops_exit_list.isra.0+0x105/0x160 net/core/net_namespace.c:156 cleanup_net+0x3fb/0x960 net/core/net_namespace.c:551 process_one_work+0x98e/0x1790 kernel/workqueue.c:2173 worker_thread+0x98/0xe40 kernel/workqueue.c:2319 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Modules linked in: protocol 88fb is buggy, dev hsr_slave_0 kobject: 'loop0' (00000000964a330f): kobject_uevent_env protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop0' (00000000964a330f): fill_kobj_path: path = '/devices/virtual/block/loop0' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 ---[ end trace b086360491410017 ]--- Enabling of bearer rejected, already enabled netlink: 'syz-executor.2': attribute type 5 has an invalid length. RIP: 0010:__skb_unlink include/linux/skbuff.h:1924 [inline] RIP: 0010:__skb_dequeue include/linux/skbuff.h:1941 [inline] RIP: 0010:__skb_queue_purge include/linux/skbuff.h:2655 [inline] RIP: 0010:gro_cells_destroy net/core/gro_cells.c:89 [inline] RIP: 0010:gro_cells_destroy+0x19d/0x360 net/core/gro_cells.c:78 Enabling of bearer rejected, already enabled Enabling of bearer rejected, already enabled Code: 03 42 80 3c 20 00 0f 85 53 01 00 00 48 8d 7a 08 49 8b 47 08 49 c7 07 00 00 00 00 48 89 f9 49 c7 47 08 00 00 00 00 48 c1 e9 03 <42> 80 3c 21 00 0f 85 10 01 00 00 48 89 c1 48 89 42 08 48 c1 e9 03 Enabling of bearer rejected, already enabled kobject: 'loop4' (000000000761ab03): kobject_uevent_env kobject: 'loop4' (000000000761ab03): fill_kobj_path: path = '/devices/virtual/block/loop4' Enabling of bearer rejected, already enabled kobject: 'loop3' (00000000b393165d): kobject_uevent_env RSP: 0018:ffff888058f579a8 EFLAGS: 00010a06 Enabling of bearer rejected, already enabled kobject: 'loop3' (00000000b393165d): fill_kobj_path: path = '/devices/virtual/block/loop3' RAX: ffffffe8ffffd6e1 RBX: ffffe8ffffd6e0c0 RCX: 179ffffd1ffffadd netlink: 'syz-executor.2': attribute type 5 has an invalid length. RDX: bcffffe8ffffd6e0 RSI: ffffffff8582a9ea RDI: bcffffe8ffffd6e8 RBP: ffff888058f57a08 R08: ffff888058f4a680 R09: fffffbfff1263415 kobject: 'loop2' (0000000042a9998b): kobject_uevent_env R10: fffffbfff1263414 R11: ffffffff8931a0a3 R12: dffffc0000000000 kobject: 'loop2' (0000000042a9998b): fill_kobj_path: path = '/devices/virtual/block/loop2' R13: 0000000000000001 R14: ffffe8ffffd6e0d0 R15: ffffe8ffffd6e0c1 Enabling of bearer rejected, already enabled FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 kobject: 'loop5' (000000006ad80186): kobject_uevent_env CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Enabling of bearer rejected, already enabled kobject: 'loop5' (000000006ad80186): fill_kobj_path: path = '/devices/virtual/block/loop5' CR2: 0000001b31029000 CR3: 000000009215c000 CR4: 00000000001406f0 kobject: 'loop0' (00000000964a330f): kobject_uevent_env Enabling of bearer rejected, already enabled DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000060000002 kobject: 'loop0' (00000000964a330f): fill_kobj_path: path = '/devices/virtual/block/loop0' DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Enabling of bearer rejected, already enabled