jump label: negative count! WARNING: CPU: 2 PID: 12315 at kernel/jump_label.c:235 static_key_slow_try_dec+0xca/0xe0 kernel/jump_label.c:235 Modules linked in: CPU: 2 PID: 12315 Comm: syz-executor.2 Not tainted 6.0.0-rc4-syzkaller-00126-g26b1224903b3 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:static_key_slow_try_dec+0xca/0xe0 kernel/jump_label.c:235 Code: 5d c3 e8 79 16 d9 ff 45 31 ed 5b 44 89 e8 5d 41 5c 41 5d c3 44 89 e5 eb 8e e8 62 16 d9 ff 48 c7 c7 e0 b8 f6 89 e8 e8 98 97 07 <0f> 0b eb c5 48 89 df e8 1a 76 25 00 e9 6a ff ff ff 0f 1f 44 00 00 RSP: 0018:ffffc900071d7050 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffffffff915473a0 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff8161f408 RDI: fffff52000e3adfc RBP: 00000000ffffffff R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 00000000ffffffff R13: ffff888048b0da01 R14: 0000000000000001 R15: ffff888048b0da28 FS: 0000000000000000(0000) GS:ffff88802cb00000(0063) knlGS:00000000f7f01b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f6e626a0 CR3: 000000001a568000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __static_key_slow_dec_cpuslocked kernel/jump_label.c:243 [inline] __static_key_slow_dec kernel/jump_label.c:255 [inline] static_key_slow_dec+0x5c/0xc0 kernel/jump_label.c:270 nf_tables_chain_destroy+0x250/0x640 net/netfilter/nf_tables_api.c:1880 nf_tables_addchain.constprop.0+0xc5b/0x1810 net/netfilter/nf_tables_api.c:2331 nf_tables_newchain+0x16d1/0x1ef0 net/netfilter/nf_tables_api.c:2595 nfnetlink_rcv_batch+0x1721/0x2600 net/netfilter/nfnetlink.c:517 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:638 [inline] nfnetlink_rcv+0x3af/0x420 net/netfilter/nfnetlink.c:656 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 ____sys_sendmsg+0x6eb/0x810 net/socket.c:2482 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536 __sys_sendmsg+0xf3/0x1c0 net/socket.c:2565 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7f06549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f7f015cc EFLAGS: 00000296 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000002000c2c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 03 74 c0 01 add 0x1(%rax,%rax,8),%esi 4: 10 05 03 74 b8 01 adc %al,0x1b87403(%rip) # 0x1b8740d a: 10 06 adc %al,(%rsi) c: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 10: 10 07 adc %al,(%rdi) 12: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi 16: 10 08 adc %cl,(%rax) 18: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1c: 00 00 add %al,(%rax) 1e: 00 00 add %al,(%rax) 20: 00 51 52 add %dl,0x52(%rcx) 23: 55 push %rbp 24: 89 e5 mov %esp,%ebp 26: 0f 34 sysenter 28: cd 80 int $0x80 * 2a: 5d pop %rbp <-- trapping instruction 2b: 5a pop %rdx 2c: 59 pop %rcx 2d: c3 retq 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 39: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi