===================================== WARNING: bad unlock balance detected! 6.14.0-rc5-syzkaller-g7eb172143d55-dirty #0 Not tainted ------------------------------------- syz.0.20/6539 is trying to release lock (&nft_net->commit_mutex) at: [<ffffffff898b345d>] nf_tables_module_autoload net/netfilter/nf_tables_api.c:10962 [inline] [<ffffffff898b345d>] nf_tables_abort+0x29fd/0x3d60 net/netfilter/nf_tables_api.c:11254 but there are no more locks to release! other info that might help us debug this: no locks held by syz.0.20/6539. stack backtrace: CPU: 3 UID: 0 PID: 6539 Comm: syz.0.20 Not tainted 6.14.0-rc5-syzkaller-g7eb172143d55-dirty #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_unlock_imbalance_bug kernel/locking/lockdep.c:5289 [inline] print_unlock_imbalance_bug+0x1aa/0x1f0 kernel/locking/lockdep.c:5263 __lock_release kernel/locking/lockdep.c:5528 [inline] lock_release+0x525/0x6f0 kernel/locking/lockdep.c:5872 __mutex_unlock_slowpath+0xa3/0x6a0 kernel/locking/mutex.c:891 nf_tables_module_autoload net/netfilter/nf_tables_api.c:10962 [inline] nf_tables_abort+0x29fd/0x3d60 net/netfilter/nf_tables_api.c:11254 nfnetlink_rcv_batch+0xabb/0x24e0 net/netfilter/nfnetlink.c:568 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:647 [inline] nfnetlink_rcv+0x3c3/0x430 net/netfilter/nfnetlink.c:665 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1882 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:733 [inline] ____sys_sendmsg+0xaaf/0xc90 net/socket.c:2573 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2627 __sys_sendmsg+0x16e/0x220 net/socket.c:2659 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8dd078d169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8dd1634038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f8dd09a5fa0 RCX: 00007f8dd078d169 RDX: 0000000000000000 RSI: 000040000000c2c0 RDI: 0000000000000003 RBP: 00007f8dd080e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f8dd09a5fa0 R15: 00007fff3449f258 </TASK>