------------[ cut here ]------------ jump label: negative count! WARNING: CPU: 1 PID: 8907 at kernel/jump_label.c:235 static_key_slow_try_dec kernel/jump_label.c:235 [inline] WARNING: CPU: 1 PID: 8907 at kernel/jump_label.c:235 static_key_slow_try_dec+0x1ab/0x1d0 kernel/jump_label.c:220 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 8907 Comm: syz-executor.4 Not tainted 5.2.0+ #52 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 panic+0x2cb/0x744 kernel/panic.c:219 __warn.cold+0x20/0x4d kernel/panic.c:576 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1008 RIP: 0010:static_key_slow_try_dec kernel/jump_label.c:235 [inline] RIP: 0010:static_key_slow_try_dec+0x1ab/0x1d0 kernel/jump_label.c:220 Code: c0 e8 59 2e e5 ff 83 fb 01 0f 85 32 ff ff ff e8 cb 2c e5 ff 45 31 ff eb a0 e8 c1 2c e5 ff 48 c7 c7 a0 bc 92 87 e8 c3 f8 b6 ff <0f> 0b eb 8b 4c 89 e7 e8 59 d1 1e 00 e9 de fe ff ff e8 6f f1 b6 ff RSP: 0018:ffff8880a78df4b0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 0000000000000000 RDX: 0000000000011e1b RSI: ffffffff815b58a6 RDI: ffffed1014f1be88 RBP: ffff8880a78df540 R08: ffff888095afe0c0 R09: 0000000000000000 R10: 0000000000000000 R11: ffff888095afe970 R12: ffffffff8983f360 R13: ffff8880a78df518 R14: 1ffff11014f1be97 R15: 00000000ffffff01 __static_key_slow_dec_deferred+0x65/0x110 kernel/jump_label.c:286 fl_free+0xa9/0xe0 net/ipv6/ip6_flowlabel.c:121 fl_create+0x6af/0x9f0 net/ipv6/ip6_flowlabel.c:457 ipv6_flowlabel_opt+0x80e/0x2730 net/ipv6/ip6_flowlabel.c:624 do_ipv6_setsockopt.isra.0+0x2125/0x4120 net/ipv6/ipv6_sockglue.c:825 compat_ipv6_setsockopt net/ipv6/ipv6_sockglue.c:975 [inline] compat_ipv6_setsockopt+0x111/0x200 net/ipv6/ipv6_sockglue.c:956 compat_udpv6_setsockopt+0x68/0xb0 net/ipv6/udp.c:1568 compat_sock_common_setsockopt+0xb2/0x140 net/core/sock.c:3141 __compat_sys_setsockopt+0x185/0x380 net/compat.c:383 __do_compat_sys_setsockopt net/compat.c:396 [inline] __se_compat_sys_setsockopt net/compat.c:393 [inline] __ia32_compat_sys_setsockopt+0xbd/0x150 net/compat.c:393 do_syscall_32_irqs_on arch/x86/entry/common.c:332 [inline] do_fast_syscall_32+0x27b/0xd7d arch/x86/entry/common.c:403 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f559c9 Code: d3 83 c4 10 5b 5e 5d c3 ba 80 96 98 00 eb a9 8b 04 24 c3 8b 34 24 c3 8b 3c 24 c3 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f5cee0cc EFLAGS: 00000296 ORIG_RAX: 000000000000016e RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000000029 RDX: 0000000000000020 RSI: 0000000020000040 RDI: 0000000000000204 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..