[ 76.985941][ T27] audit: type=1800 audit(1578705506.993:25): pid=9462 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 77.012481][ T27] audit: type=1800 audit(1578705506.993:26): pid=9462 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 77.061799][ T27] audit: type=1800 audit(1578705506.993:27): pid=9462 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 77.548040][ T9530] sshd (9530) used greatest stack depth: 22888 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.193' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 89.071587][ T9615] kasan: CONFIG_KASAN_INLINE enabled [ 89.077180][ T9615] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 89.085325][ T9615] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 89.092433][ T9615] CPU: 0 PID: 9615 Comm: syz-executor982 Not tainted 5.5.0-rc5-syzkaller #0 [ 89.101082][ T9615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.111140][ T9615] RIP: 0010:xt_rateest_put+0xa1/0x440 [ 89.116537][ T9615] Code: 65 b8 fd fa 45 84 f6 0f 84 68 02 00 00 e8 17 b7 fd fa 49 8d bd a8 13 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 6c 03 00 00 4d 8b b5 a8 13 00 00 e8 09 f0 e9 fa [ 89.136227][ T9615] RSP: 0018:ffffc90002517940 EFLAGS: 00010202 [ 89.142289][ T9615] RAX: dffffc0000000000 RBX: ffff8880a8370200 RCX: ffffffff86777d02 [ 89.150290][ T9615] RDX: 0000000000000275 RSI: ffffffff86777a89 RDI: 00000000000013a8 [ 89.158282][ T9615] RBP: ffffc90002517970 R08: ffff8880a232a380 R09: ffffed1015d0703d [ 89.166232][ T9615] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 000000000000002d [ 89.174185][ T9615] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff86777e40 [ 89.182138][ T9615] FS: 0000000001280880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 89.191042][ T9615] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.197602][ T9615] CR2: 00000000200008e0 CR3: 00000000a9261000 CR4: 00000000001406f0 [ 89.205552][ T9615] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.213500][ T9615] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.221453][ T9615] Call Trace: [ 89.224726][ T9615] ? xt_rateest_put+0x440/0x440 [ 89.229552][ T9615] xt_rateest_tg_destroy+0x72/0xa0 [ 89.234639][ T9615] ? xt_percpu_counter_free+0x8f/0xd0 [ 89.239986][ T9615] translate_table+0x11f4/0x1d80 [ 89.244906][ T9615] ? arpt_alloc_initial_table+0x690/0x690 [ 89.250603][ T9615] ? lock_downgrade+0x920/0x920 [ 89.255444][ T9615] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 89.261674][ T9615] ? _copy_from_user+0x12c/0x1a0 [ 89.266712][ T9615] do_arpt_set_ctl+0x317/0x650 [ 89.271462][ T9615] ? __do_replace+0xa80/0xa80 [ 89.276125][ T9615] ? __mutex_unlock_slowpath+0xf0/0x6a0 [ 89.281651][ T9615] ? ___might_sleep+0x163/0x2c0 [ 89.286480][ T9615] ? wait_for_completion+0x440/0x440 [ 89.291742][ T9615] ? mutex_unlock+0xd/0x10 [ 89.296137][ T9615] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 89.302095][ T9615] nf_setsockopt+0x77/0xd0 [ 89.306515][ T9615] ip_setsockopt+0xdf/0x100 [ 89.311004][ T9615] udp_setsockopt+0x68/0xb0 [ 89.315495][ T9615] sock_common_setsockopt+0x94/0xd0 [ 89.320673][ T9615] __sys_setsockopt+0x261/0x4c0 [ 89.325504][ T9615] ? sock_create_kern+0x50/0x50 [ 89.330349][ T9615] ? down_read_non_owner+0x490/0x490 [ 89.335612][ T9615] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 89.341872][ T9615] ? handle_mm_fault+0x4ab/0xa50 [ 89.346788][ T9615] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 89.352282][ T9615] ? do_syscall_64+0x26/0x790 [ 89.356937][ T9615] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 89.363023][ T9615] ? do_syscall_64+0x26/0x790 [ 89.367679][ T9615] __x64_sys_setsockopt+0xbe/0x150 [ 89.372771][ T9615] do_syscall_64+0xfa/0x790 [ 89.377250][ T9615] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 89.383134][ T9615] RIP: 0033:0x441699 [ 89.387008][ T9615] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 89.406685][ T9615] RSP: 002b:00007ffdb99aef18 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 89.415081][ T9615] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000441699 [ 89.423088][ T9615] RDX: 0000000000000060 RSI: 0a02000000000000 RDI: 0000000000000003 [ 89.431179][ T9615] RBP: 00000000006cb018 R08: 0000000000000430 R09: 00000000004002c8 [ 89.439151][ T9615] R10: 00000000200008c0 R11: 0000000000000246 R12: 0000000000402f20 [ 89.447112][ T9615] R13: 0000000000402fb0 R14: 0000000000000000 R15: 0000000000000000 [ 89.455079][ T9615] Modules linked in: [ 89.459547][ T9615] ---[ end trace 430f6f413fa031c6 ]--- [ 89.465053][ T9615] RIP: 0010:xt_rateest_put+0xa1/0x440 [ 89.470406][ T9615] Code: 65 b8 fd fa 45 84 f6 0f 84 68 02 00 00 e8 17 b7 fd fa 49 8d bd a8 13 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 6c 03 00 00 4d 8b b5 a8 13 00 00 e8 09 f0 e9 fa [ 89.490120][ T9615] RSP: 0018:ffffc90002517940 EFLAGS: 00010202 [ 89.496238][ T9615] RAX: dffffc0000000000 RBX: ffff8880a8370200 RCX: ffffffff86777d02 [ 89.504246][ T9615] RDX: 0000000000000275 RSI: ffffffff86777a89 RDI: 00000000000013a8 [ 89.512247][ T9615] RBP: ffffc90002517970 R08: ffff8880a232a380 R09: ffffed1015d0703d [ 89.520203][ T9615] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 000000000000002d [ 89.528216][ T9615] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff86777e40 [ 89.536209][ T9615] FS: 0000000001280880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 89.545168][ T9615] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.551751][ T9615] CR2: 00000000200008e0 CR3: 00000000a9261000 CR4: 00000000001406f0 [ 89.559788][ T9615] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.567788][ T9615] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.575833][ T9615] Kernel panic - not syncing: Fatal exception [ 89.583403][ T9615] Kernel Offset: disabled [ 89.587795][ T9615] Rebooting in 86400 seconds..