[....] Starting enhanced syslogd: rsyslogd[ 15.952296] audit: type=1400 audit(1517344880.915:5): avc: denied { syslog } for pid=4009 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 21.127338] audit: type=1400 audit(1517344886.090:6): avc: denied { map } for pid=4148 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.11' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.529136] audit: type=1400 audit(1517344892.491:7): avc: denied { map } for pid=4162 comm="syzkaller682628" path="/root/syzkaller682628773" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 31.902737] ================================================================== [ 31.910174] BUG: KASAN: use-after-free in xt_rateest_tg_checkentry+0xa01/0xaa0 [ 31.917525] Write of size 8 at addr ffff8801acb27358 by task syzkaller682628/4166 [ 31.925131] [ 31.926752] CPU: 0 PID: 4166 Comm: syzkaller682628 Not tainted 4.15.0-rc9+ #217 [ 31.934181] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.943517] Call Trace: [ 31.946100] dump_stack+0x194/0x257 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 31.949723] ? arch_local_irq_restore+0x53/0x53 [ 31.954381] ? show_regs_print_info+0x18/0x18 [ 31.958873] ? est_timer+0x7c0/0x7c0 [ 31.962581] ? xt_rateest_tg_checkentry+0xa01/0xaa0 [ 31.967592] print_address_description+0x73/0x250 [ 31.972424] ? xt_rateest_tg_checkentry+0xa01/0xaa0 [ 31.977429] kasan_report+0x25b/0x340 [ 31.981231] __asan_report_store8_noabort+0x17/0x20 [ 31.986234] xt_rateest_tg_checkentry+0xa01/0xaa0 [ 31.991068] ? xt_rateest_lookup+0x460/0x460 [ 31.995468] ? wait_for_completion+0x770/0x770 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.000044] ? __kernel_text_address+0xd/0x40 [ 32.004530] ? module_unload_free+0x5b0/0x5b0 [ 32.009015] ? __save_stack_trace+0x7e/0xd0 [ 32.013332] ? xt_rateest_lookup+0x460/0x460 [ 32.017734] xt_check_target+0x22c/0x7d0 [ 32.021791] ? xt_target_seq_next+0x30/0x30 [ 32.026107] ? mutex_unlock+0xd/0x10 [ 32.029813] ? xt_find_target+0x17b/0x1e0 [ 32.033955] ? xt_find_target+0x17b/0x1e0 [ 32.038118] find_check_entry.isra.7+0x935/0xcf0 [ 32.042885] ? do_add_counters+0x560/0x560 [ 32.047119] ? mark_held_locks+0xaf/0x100 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.051259] ? kfree+0xf0/0x260 [ 32.054541] ? trace_hardirqs_on+0xd/0x10 [ 32.058688] translate_table+0xf52/0x1690 [ 32.062856] ? alloc_counters.isra.10+0x7e0/0x7e0 [ 32.067695] ? kasan_check_write+0x14/0x20 [ 32.071916] ? _copy_from_user+0x99/0x110 [ 32.076059] do_ip6t_set_ctl+0x370/0x5f0 [ 32.080120] ? translate_compat_table+0x1c50/0x1c50 [ 32.085155] ? mutex_unlock+0xd/0x10 [ 32.088872] ? nf_sockopt_find.constprop.0+0x1a7/0x220 [ 32.094157] nf_setsockopt+0x67/0xc0 [ 32.097875] ipv6_setsockopt+0x115/0x150 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.101936] udpv6_setsockopt+0x45/0x80 [ 32.105907] sock_common_setsockopt+0x95/0xd0 [ 32.110399] SyS_setsockopt+0x189/0x360 [ 32.114370] ? SyS_recv+0x40/0x40 [ 32.117819] ? entry_SYSCALL_64_fastpath+0x5/0xa0 [ 32.122655] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.127666] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.132424] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 32.137172] RIP: 0033:0x4412d9 [ 32.140347] RSP: 002b:00007ffdef6232a8 EFLAGS: 00000203 ORIG_RAX: 0000000000000036 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.148046] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 00000000004412d9 [ 32.155305] RDX: 0000000000000040 RSI: 0000000000000029 RDI: 00000000000002fe [ 32.162575] RBP: f6fcce9cd855ec40 R08: 00000000000003b8 R09: 0000000000000000 [ 32.169847] R10: 0000000020019c48 R11: 0000000000000203 R12: fbfe5b6031634428 [ 32.177125] R13: 5826b2d59f7fe9a1 R14: fd7217c033abf8b5 R15: 0000000000000000 [ 32.184413] [ 32.186030] Allocated by task 4164: [ 32.189651] save_stack+0x43/0xd0 [ 32.193090] kasan_kmalloc+0xad/0xe0 [ 32.196794] kmem_cache_alloc_trace+0x136/0x750 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.201452] xt_rateest_tg_checkentry+0x25a/0xaa0 [ 32.206280] xt_check_target+0x22c/0x7d0 [ 32.210333] find_check_entry.isra.7+0x935/0xcf0 [ 32.215079] translate_table+0xf52/0x1690 [ 32.219213] do_ip6t_set_ctl+0x370/0x5f0 [ 32.223261] nf_setsockopt+0x67/0xc0 [ 32.226962] ipv6_setsockopt+0x115/0x150 [ 32.231009] udpv6_setsockopt+0x45/0x80 [ 32.234978] sock_common_setsockopt+0x95/0xd0 [ 32.239466] SyS_setsockopt+0x189/0x360 [ 32.243430] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 32.248168] [ 32.249778] Freed by task 4166: executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.253045] save_stack+0x43/0xd0 [ 32.256490] kasan_slab_free+0x71/0xc0 [ 32.260363] kfree+0xd6/0x260 [ 32.263460] rcu_process_callbacks+0xe94/0x17f0 [ 32.268120] __do_softirq+0x2d7/0xb85 [ 32.271913] [ 32.273541] The buggy address belongs to the object at ffff8801acb27300 [ 32.273541] which belongs to the cache kmalloc-192 of size 192 [ 32.286204] The buggy address is located 88 bytes inside of [ 32.286204] 192-byte region [ffff8801acb27300, ffff8801acb273c0) [ 32.297981] The buggy address belongs to the page: executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.302903] page:ffffea0006b2c9c0 count:1 mapcount:0 mapping:ffff8801acb27000 index:0x0 [ 32.311039] flags: 0x2fffc0000000100(slab) [ 32.315262] raw: 02fffc0000000100 ffff8801acb27000 0000000000000000 0000000100000010 [ 32.323137] raw: ffffea0006b2cc60 ffffea0006b2ce20 ffff8801db000040 0000000000000000 [ 32.331003] page dumped because: kasan: bad access detected [ 32.336699] [ 32.338309] Memory state around the buggy address: [ 32.343226] ffff8801acb27200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.350570] ffff8801acb27280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 32.357916] >ffff8801acb27300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.365260] ^ [ 32.371475] ffff8801acb27380: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 32.378822] ffff8801acb27400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.386169] ================================================================== [ 32.393512] Disabling lock debugging due to kernel taint [ 32.399073] Kernel panic - not syncing: panic_on_warn set ... executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.399073] [ 32.406430] CPU: 0 PID: 4166 Comm: syzkaller682628 Tainted: G B 4.15.0-rc9+ #217 [ 32.415163] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.424497] Call Trace: [ 32.427076] dump_stack+0x194/0x257 [ 32.430689] ? arch_local_irq_restore+0x53/0x53 [ 32.435346] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.440085] ? vsnprintf+0x1ed/0x1900 [ 32.443873] ? xt_rateest_tg_checkentry+0x970/0xaa0 [ 32.448878] panic+0x1e4/0x41c executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.452059] ? refcount_error_report+0x214/0x214 [ 32.456802] ? add_taint+0x1c/0x50 [ 32.460325] ? add_taint+0x1c/0x50 [ 32.463857] ? xt_rateest_tg_checkentry+0xa01/0xaa0 [ 32.468863] kasan_end_report+0x50/0x50 [ 32.472822] kasan_report+0x144/0x340 [ 32.476616] __asan_report_store8_noabort+0x17/0x20 [ 32.481617] xt_rateest_tg_checkentry+0xa01/0xaa0 [ 32.486447] ? xt_rateest_lookup+0x460/0x460 [ 32.490853] ? wait_for_completion+0x770/0x770 [ 32.495430] ? __kernel_text_address+0xd/0x40 [ 32.499913] ? module_unload_free+0x5b0/0x5b0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.504394] ? __save_stack_trace+0x7e/0xd0 [ 32.508704] ? xt_rateest_lookup+0x460/0x460 [ 32.513106] xt_check_target+0x22c/0x7d0 [ 32.517156] ? xt_target_seq_next+0x30/0x30 [ 32.521465] ? mutex_unlock+0xd/0x10 [ 32.525163] ? xt_find_target+0x17b/0x1e0 [ 32.529299] ? xt_find_target+0x17b/0x1e0 [ 32.533443] find_check_entry.isra.7+0x935/0xcf0 [ 32.538191] ? do_add_counters+0x560/0x560 [ 32.542416] ? mark_held_locks+0xaf/0x100 [ 32.546553] ? kfree+0xf0/0x260 [ 32.549826] ? trace_hardirqs_on+0xd/0x10 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.553971] translate_table+0xf52/0x1690 [ 32.558120] ? alloc_counters.isra.10+0x7e0/0x7e0 [ 32.562954] ? kasan_check_write+0x14/0x20 [ 32.567171] ? _copy_from_user+0x99/0x110 [ 32.571311] do_ip6t_set_ctl+0x370/0x5f0 [ 32.575362] ? translate_compat_table+0x1c50/0x1c50 [ 32.580370] ? mutex_unlock+0xd/0x10 [ 32.584069] ? nf_sockopt_find.constprop.0+0x1a7/0x220 [ 32.589332] nf_setsockopt+0x67/0xc0 [ 32.593032] ipv6_setsockopt+0x115/0x150 [ 32.597082] udpv6_setsockopt+0x45/0x80 [ 32.601044] sock_common_setsockopt+0x95/0xd0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.605529] SyS_setsockopt+0x189/0x360 [ 32.609490] ? SyS_recv+0x40/0x40 [ 32.612929] ? entry_SYSCALL_64_fastpath+0x5/0xa0 [ 32.617761] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.622764] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.627514] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 32.632254] RIP: 0033:0x4412d9 [ 32.635427] RSP: 002b:00007ffdef6232a8 EFLAGS: 00000203 ORIG_RAX: 0000000000000036 [ 32.643118] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 00000000004412d9 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.650373] RDX: 0000000000000040 RSI: 0000000000000029 RDI: 00000000000002fe [ 32.657629] RBP: f6fcce9cd855ec40 R08: 00000000000003b8 R09: 0000000000000000 [ 32.664883] R10: 0000000020019c48 R11: 0000000000000203 R12: fbfe5b6031634428 [ 32.672142] R13: 5826b2d59f7fe9a1 R14: fd7217c033abf8b5 R15: 0000000000000000 [ 32.679837] Dumping ftrace buffer: [ 32.683351] (ftrace buffer empty) [ 32.687029] Kernel Offset: disabled [ 32.690622] Rebooting in 86400 seconds..