TITLE: kernel BUG in xt_rateest_tg_checkentry
TYPE: BUG
PANICKED: Y

[   70.516302][ T8713] detected buffer overflow in strlen
[   70.527902][ T8713] ------------[ cut here ]------------
[   70.549646][ T8713] kernel BUG at lib/string.c:1149!
[   70.556570][ T8713] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   70.562659][ T8713] CPU: 0 PID: 8713 Comm: syz-executor731 Not tainted 5.10.0-syzkaller #0
[   70.571201][ T8713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   70.581238][ T8713] RIP: 0010:fortify_panic+0xf/0x11
[   70.586348][ T8713] Code: b5 78 a3 04 48 c7 c7 c0 8f c2 89 58 5b 5d 41 5c 41 5d 41 5e 41 5f e9 30 ba ee ff 48 89 fe 48 c7 c7 80 90 c2 89 e8 21 ba ee ff <0f> 0b e8 90 f9 97 f8 0f b6 f3 48 c7 c7 20 f4 10 8c e8 41 e8 fc fa
[   70.605940][ T8713] RSP: 0018:ffffc900020af500 EFLAGS: 00010282
[   70.612141][ T8713] RAX: 0000000000000022 RBX: ffff888011c26768 RCX: 0000000000000000
[   70.620096][ T8713] RDX: ffff88801bad0000 RSI: ffffffff815a6925 RDI: fffff52000415e92
[   70.628060][ T8713] RBP: ffff88801be7c220 R08: 0000000000000022 R09: 0000000000000000
[   70.636010][ T8713] R10: ffffffff815a4d7b R11: 0000000000000000 R12: ffff88801180ec00
[   70.643961][ T8713] R13: ffff888011c26700 R14: 1ffff92000415ea2 R15: 0000000000000010
[   70.651914][ T8713] FS:  0000000000812880(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
[   70.660825][ T8713] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   70.667389][ T8713] CR2: 00000000006dcf60 CR3: 00000000141ee000 CR4: 00000000001506f0
[   70.675341][ T8713] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   70.683290][ T8713] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   70.691240][ T8713] Call Trace:
[   70.694502][ T8713]  xt_rateest_tg_checkentry+0x2a5/0x6b0
[   70.700034][ T8713]  ? xt_rateest_net_init+0x90/0x90
[   70.705145][ T8713]  ? mutex_lock_io_nested+0xf60/0xf60
[   70.710498][ T8713]  ? xt_find_target+0xa3/0x280
[   70.715246][ T8713]  ? xt_rateest_net_init+0x90/0x90
[   70.720354][ T8713]  xt_check_target+0x26c/0x9e0
[   70.725115][ T8713]  ? textify_hooks.constprop.0+0x1a0/0x1a0
[   70.730903][ T8713]  ? xt_find_target+0x6e/0x280
[   70.735654][ T8713]  ? xt_find_target+0x6e/0x280
[   70.740404][ T8713]  find_check_entry.constprop.0+0x7f1/0x9e0
[   70.746299][ T8713]  ? compat_get_entries+0x7c0/0x7c0
[   70.751480][ T8713]  ? lockdep_hardirqs_on+0x79/0x100
[   70.756663][ T8713]  ? kfree+0xdb/0x3c0
[   70.760634][ T8713]  ? slab_free_freelist_hook+0x5d/0x150
[   70.766162][ T8713]  ? kfree+0xdb/0x3c0
[   70.770126][ T8713]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   70.776348][ T8713]  translate_table+0xc8b/0x1750
[   70.781182][ T8713]  ? ip6t_do_table+0x1a70/0x1a70
[   70.786109][ T8713]  do_ip6t_set_ctl+0x553/0xb70
[   70.790862][ T8713]  ? nf_sockopt_find.constprop.0+0x22d/0x2a0
[   70.796832][ T8713]  ? lock_downgrade+0x6d0/0x6d0
[   70.801726][ T8713]  ? compat_do_replace.constprop.0+0x470/0x470
[   70.807869][ T8713]  ? __mutex_unlock_slowpath+0xe2/0x610
[   70.813415][ T8713]  ? find_held_lock+0x2d/0x110
[   70.818182][ T8713]  ? nf_sockopt_find.constprop.0+0x22d/0x2a0
[   70.824153][ T8713]  nf_setsockopt+0x83/0xe0
[   70.828570][ T8713]  ipv6_setsockopt+0x122/0x180
[   70.833350][ T8713]  tcp_setsockopt+0x136/0x2440
[   70.838156][ T8713]  ? do_page_mkwrite+0x530/0x530
[   70.843091][ T8713]  ? tcp_sock_set_keepidle+0x40/0x40
[   70.848376][ T8713]  ? aa_sk_perm+0x385/0xb70
[   70.852875][ T8713]  ? aa_af_perm+0x230/0x230
[   70.857366][ T8713]  ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[   70.863595][ T8713]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   70.869834][ T8713]  ? sock_common_setsockopt+0x2b/0x100
[   70.875279][ T8713]  __sys_setsockopt+0x2db/0x610
[   70.880114][ T8713]  ? sock_common_recvmsg+0x1a0/0x1a0
[   70.885389][ T8713]  ? __ia32_sys_recv+0x100/0x100
[   70.890308][ T8713]  ? vmacache_update+0xce/0x140
[   70.895154][ T8713]  __x64_sys_setsockopt+0xba/0x150
[   70.900260][ T8713]  ? syscall_enter_from_user_mode+0x1d/0x50
[   70.906151][ T8713]  do_syscall_64+0x2d/0x70
[   70.910561][ T8713]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   70.916462][ T8713] RIP: 0033:0x4493d9
[   70.920341][ T8713] Code: e8 0c ca 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0f 83 9b cb fb ff c3 66 2e 0f 1f 84 00 00 00 00
[   70.939929][ T8713] RSP: 002b:00007fff679a3898 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[   70.948330][ T8713] RAX: ffffffffffffffda RBX: 00000000200002c0 RCX: 00000000004493d9
[   70.956283][ T8713] RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000006
[   70.964234][ T8713] RBP: 00007fff679a38b0 R08: 0000000000000470 R09: 00000000000000c2
[   70.972186][ T8713] R10: 0000000020000080 R11: 0000000000000246 R12: 00000000000112d5
[   70.980136][ T8713] R13: 00000000006d7dc8 R14: 0000000000000000 R15: 0000000000000000
[   70.988091][ T8713] Modules linked in:
[   70.996643][ T8713] ---[ end trace e17a915ca7e8b666 ]---
[   71.002261][ T8713] RIP: 0010:fortify_panic+0xf/0x11
[   71.007618][ T8713] Code: b5 78 a3 04 48 c7 c7 c0 8f c2 89 58 5b 5d 41 5c 41 5d 41 5e 41 5f e9 30 ba ee ff 48 89 fe 48 c7 c7 80 90 c2 89 e8 21 ba ee ff <0f> 0b e8 90 f9 97 f8 0f b6 f3 48 c7 c7 20 f4 10 8c e8 41 e8 fc fa
[   71.027822][ T8713] RSP: 0018:ffffc900020af500 EFLAGS: 00010282
[   71.034051][ T8713] RAX: 0000000000000022 RBX: ffff888011c26768 RCX: 0000000000000000
[   71.042199][ T8713] RDX: ffff88801bad0000 RSI: ffffffff815a6925 RDI: fffff52000415e92
[   71.051051][ T8713] RBP: ffff88801be7c220 R08: 0000000000000022 R09: 0000000000000000
[   71.059189][ T8713] R10: ffffffff815a4d7b R11: 0000000000000000 R12: ffff88801180ec00
[   71.067410][ T8713] R13: ffff888011c26700 R14: 1ffff92000415ea2 R15: 0000000000000010
[   71.075534][ T8713] FS:  0000000000812880(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
[   71.085215][ T8713] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.091896][ T8713] CR2: 00000000006dcf60 CR3: 00000000141ee000 CR4: 00000000001506f0
[   71.100007][ T8713] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   71.108492][ T8713] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   71.116589][ T8713] Kernel panic - not syncing: Fatal exception
[   71.123297][ T8713] Kernel Offset: disabled
[   71.127610][ T8713] Rebooting in 86400 seconds..
