===================================== WARNING: bad unlock balance detected! 5.0.0-rc4+ #47 Not tainted ------------------------------------- syz-executor2/9350 is trying to release lock (sk_lock-AF_RXRPC) at: [] rxrpc_recvmsg+0x6d3/0x3099 net/rxrpc/recvmsg.c:598 but there are no more locks to release! other info that might help us debug this: 1 lock held by syz-executor2/9350: #0: 000000002138fde4 (slock-AF_RXRPC){+...}, at: spin_lock_bh include/linux/spinlock.h:334 [inline] #0: 000000002138fde4 (slock-AF_RXRPC){+...}, at: release_sock+0x20/0x1c0 net/core/sock.c:2893 stack backtrace: CPU: 0 PID: 9350 Comm: syz-executor2 Not tainted 5.0.0-rc4+ #47 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 print_unlock_imbalance_bug kernel/locking/lockdep.c:3391 [inline] print_unlock_imbalance_bug.cold+0x114/0x123 kernel/locking/lockdep.c:3368 __lock_release kernel/locking/lockdep.c:3601 [inline] lock_release+0x67e/0xa00 kernel/locking/lockdep.c:3860 sock_release_ownership include/net/sock.h:1472 [inline] release_sock+0x183/0x1c0 net/core/sock.c:2903 rxrpc_recvmsg+0x6d3/0x3099 net/rxrpc/recvmsg.c:598 sock_recvmsg_nosec net/socket.c:816 [inline] sock_recvmsg net/socket.c:823 [inline] sock_recvmsg+0xd0/0x110 net/socket.c:819 ___sys_recvmsg+0x273/0x5d0 net/socket.c:2300 do_recvmmsg+0x27c/0x7a0 net/socket.c:2413 __sys_recvmmsg+0xe5/0x270 net/socket.c:2494 __do_sys_recvmmsg net/socket.c:2515 [inline] __se_sys_recvmmsg net/socket.c:2508 [inline] __x64_sys_recvmmsg+0xe6/0x140 net/socket.c:2508 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e39 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f7ce25aec78 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000457e39 RDX: 0000000000000004 RSI: 0000000020000d80 RDI: 0000000000000003 RBP: 000000000073bfa0 R08: 0000000020000e80 R09: 0000000000000000 R10: 0000000000010000 R11: 0000000000000246 R12: 00007f7ce25af6d4 R13: 00000000004c4aec R14: 00000000004d8498 R15: 00000000ffffffff protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (00000000c51f0412): kobject_uevent_env ip6_vti0: mtu less than device minimum kobject: 'loop2' (00000000c51f0412): fill_kobj_path: path = '/devices/virtual/block/loop2' ip6_vti0: mtu less than device minimum kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' EXT4-fs warning (device sda1): verify_group_input:104: Cannot add at group 4 (only 16 groups) kobject: 'loop1' (00000000987f13c0): kobject_uevent_env kobject: 'loop1' (00000000987f13c0): fill_kobj_path: path = '/devices/virtual/block/loop1' ip6_vti0: mtu less than device minimum kobject: 'loop4' (000000004ac28a90): kobject_uevent_env kobject: 'loop4' (000000004ac28a90): fill_kobj_path: path = '/devices/virtual/block/loop4' ip6_vti0: mtu less than device minimum kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000987f13c0): kobject_uevent_env kobject: 'loop1' (00000000987f13c0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000c51f0412): kobject_uevent_env kobject: 'loop2' (00000000c51f0412): fill_kobj_path: path = '/devices/virtual/block/loop2' ip6_vti0: mtu less than device minimum kobject: 'loop0' (000000009f5eb018): kobject_uevent_env kobject: 'ifb0' (0000000032b941cf): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop0' (000000009f5eb018): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'ifb0' (0000000032b941cf): kobject_uevent_env kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'ifb0' (0000000032b941cf): fill_kobj_path: path = '/devices/virtual/net/ifb0' kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'queues' (0000000058d7f4a6): kobject_add_internal: parent: 'ifb0', set: '' kobject: 'loop1' (00000000987f13c0): kobject_uevent_env kobject: 'loop1' (00000000987f13c0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'queues' (0000000058d7f4a6): kobject_uevent_env kobject: 'queues' (0000000058d7f4a6): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (00000000e8180053): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (00000000e8180053): kobject_uevent_env kobject: 'rx-0' (00000000e8180053): fill_kobj_path: path = '/devices/virtual/net/ifb0/queues/rx-0' kobject: 'tx-0' (000000003d62eeee): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (000000003d62eeee): kobject_uevent_env kobject: 'tx-0' (000000003d62eeee): fill_kobj_path: path = '/devices/virtual/net/ifb0/queues/tx-0' kobject: 'brif' (000000009bf317ac): kobject_add_internal: parent: 'ifb0', set: '' kobject: 'batman_adv' (00000000dc56cb25): kobject_add_internal: parent: 'ifb0', set: '' ip6_vti0: mtu less than device minimum ip6_vti0: mtu less than device minimum kobject: 'loop2' (00000000c51f0412): kobject_uevent_env kobject: 'loop2' (00000000c51f0412): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (000000004ac28a90): kobject_uevent_env kobject: 'loop4' (000000004ac28a90): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' ip6_vti0: mtu less than device minimum kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000987f13c0): kobject_uevent_env kobject: 'loop1' (00000000987f13c0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000c51f0412): kobject_uevent_env kobject: 'loop2' (00000000c51f0412): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (000000004ac28a90): kobject_uevent_env kobject: 'loop4' (000000004ac28a90): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (000000009f5eb018): kobject_uevent_env kobject: 'loop0' (000000009f5eb018): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000987f13c0): kobject_uevent_env kobject: 'loop1' (00000000987f13c0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000009f5eb018): kobject_uevent_env kobject: 'loop0' (000000009f5eb018): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000987f13c0): kobject_uevent_env kobject: 'loop1' (00000000987f13c0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (000000004ac28a90): kobject_uevent_env kobject: 'loop4' (000000004ac28a90): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000c51f0412): kobject_uevent_env kobject: 'loop2' (00000000c51f0412): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000c51f0412): kobject_uevent_env kobject: 'loop2' (00000000c51f0412): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000987f13c0): kobject_uevent_env kobject: 'loop1' (00000000987f13c0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000c51f0412): kobject_uevent_env kobject: 'loop2' (00000000c51f0412): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (000000009f5eb018): kobject_uevent_env kobject: 'loop0' (000000009f5eb018): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'regulatory.0' (000000002fc4f243): kobject_uevent_env kobject: 'regulatory.0' (000000002fc4f243): fill_kobj_path: path = '/devices/platform/regulatory.0' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (000000004ac28a90): kobject_uevent_env kobject: 'loop4' (000000004ac28a90): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000c51f0412): kobject_uevent_env kobject: 'loop2' (00000000c51f0412): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000987f13c0): kobject_uevent_env kobject: 'loop1' (00000000987f13c0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000c51f0412): kobject_uevent_env kobject: 'loop2' (00000000c51f0412): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000987f13c0): kobject_uevent_env kobject: 'loop1' (00000000987f13c0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000009f5eb018): kobject_uevent_env kobject: 'loop0' (000000009f5eb018): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (000000004ac28a90): kobject_uevent_env kobject: 'loop4' (000000004ac28a90): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000987f13c0): kobject_uevent_env kobject: 'loop1' (00000000987f13c0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000c51f0412): kobject_uevent_env kobject: 'loop2' (00000000c51f0412): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000004ac28a90): kobject_uevent_env kobject: 'loop4' (000000004ac28a90): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (000000004ac28a90): kobject_uevent_env kobject: 'loop4' (000000004ac28a90): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (000000009f5eb018): kobject_uevent_env kobject: 'loop0' (000000009f5eb018): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000987f13c0): kobject_uevent_env kobject: 'loop1' (00000000987f13c0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (00000000c51f0412): kobject_uevent_env kobject: 'loop2' (00000000c51f0412): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (000000004ac28a90): kobject_uevent_env kobject: 'loop4' (000000004ac28a90): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (000000009f5eb018): kobject_uevent_env kobject: 'loop0' (000000009f5eb018): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000987f13c0): kobject_uevent_env kobject: 'loop1' (00000000987f13c0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'regulatory.0' (000000002fc4f243): kobject_uevent_env kobject: 'regulatory.0' (000000002fc4f243): fill_kobj_path: path = '/devices/platform/regulatory.0' kobject: 'loop2' (00000000c51f0412): kobject_uevent_env kobject: 'loop2' (00000000c51f0412): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (000000009f5eb018): kobject_uevent_env kobject: 'loop0' (000000009f5eb018): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (000000004ac28a90): kobject_uevent_env kobject: 'loop4' (000000004ac28a90): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000987f13c0): kobject_uevent_env kobject: 'loop1' (00000000987f13c0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000c51f0412): kobject_uevent_env kobject: 'loop2' (00000000c51f0412): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (000000009f5eb018): kobject_uevent_env kobject: 'loop0' (000000009f5eb018): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (000000004ac28a90): kobject_uevent_env kobject: 'loop4' (000000004ac28a90): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000987f13c0): kobject_uevent_env kobject: 'loop1' (00000000987f13c0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (00000000c51f0412): kobject_uevent_env kobject: 'loop2' (00000000c51f0412): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000009f5eb018): kobject_uevent_env kobject: 'loop0' (000000009f5eb018): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000987f13c0): kobject_uevent_env kobject: 'loop1' (00000000987f13c0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'regulatory.0' (000000002fc4f243): kobject_uevent_env kobject: 'regulatory.0' (000000002fc4f243): fill_kobj_path: path = '/devices/platform/regulatory.0' kobject: 'loop4' (000000004ac28a90): kobject_uevent_env kobject: 'loop4' (000000004ac28a90): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env kobject: 'loop3' (000000008d4d27cf): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (000000009f5eb018): kobject_uevent_env kobject: 'loop0' (000000009f5eb018): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000c51f0412): kobject_uevent_env kobject: 'loop2' (00000000c51f0412): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (0000000078b18071): kobject_uevent_env kobject: 'loop5' (0000000078b18071): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (000000008d4d27cf): kobject_uevent_env