[ 87.842425][ T27] audit: type=1400 audit(1577187615.893:37): avc: denied { watch } for pid=9876 comm="restorecond" path="/root/.ssh" dev="sda1" ino=16179 scontext=system_u:system_r:kernel_t:s0 tcontext=unconfined_u:object_r:ssh_home_t:s0 tclass=dir permissive=1 [ 87.884438][ T27] audit: type=1400 audit(1577187615.923:38): avc: denied { watch } for pid=9876 comm="restorecond" path="/etc/selinux/restorecond.conf" dev="sda1" ino=2232 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 88.203382][ T27] audit: type=1800 audit(1577187616.253:39): pid=9782 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 88.225266][ T27] audit: type=1800 audit(1577187616.253:40): pid=9782 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 91.742150][ T27] audit: type=1400 audit(1577187619.793:41): avc: denied { map } for pid=9960 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 '10.128.10.28' (ECDSA) to the list of known hosts. executing program [ 98.193517][ T27] audit: type=1400 audit(1577187626.243:42): avc: denied { map } for pid=9972 comm="syz-executor625" path="/root/syz-executor625778927" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 98.221886][ T9972] skbuff: skb_over_panic: text:00000000eec7f342 len:194 put:82 head:00000000031aed7e data:00000000031aed7e tail:0xc2 end:0xc0 dev: [ 98.236547][ T9972] ------------[ cut here ]------------ [ 98.241998][ T9972] kernel BUG at net/core/skbuff.c:108! [ 98.248019][ T9972] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 98.254090][ T9972] CPU: 0 PID: 9972 Comm: syz-executor625 Not tainted 5.5.0-rc3-syzkaller #0 [ 98.262791][ T9972] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.272843][ T9972] RIP: 0010:skb_panic+0x176/0x178 [ 98.277850][ T9972] Code: 6d 9e fb 4c 8b 4d b8 8b 4b 70 41 57 45 89 f0 4c 89 ea ff 75 d0 4c 89 e6 48 c7 c7 60 f5 d4 88 ff 75 c8 ff 75 c0 e8 a2 ff 49 fb <0f> 0b e8 a7 b4 60 fb 4c 8b 6d 08 e8 6e 64 9e fb 48 c7 c1 00 02 d5 [ 98.297535][ T9972] RSP: 0018:ffffc90001e37990 EFLAGS: 00010282 [ 98.303581][ T9972] RAX: 0000000000000086 RBX: ffff88809f2e8340 RCX: 0000000000000000 [ 98.311542][ T9972] RDX: 0000000000000000 RSI: ffffffff815e8b56 RDI: fffff520003c6f24 [ 98.319541][ T9972] RBP: ffffc90001e379f8 R08: 0000000000000086 R09: ffffed1015d06621 [ 98.327520][ T9972] R10: ffffed1015d06620 R11: ffff8880ae833107 R12: ffffffff88d50240 [ 98.335475][ T9972] R13: ffffffff8734af37 R14: 0000000000000052 R15: ffffffff88d4f520 [ 98.343431][ T9972] FS: 00000000009a7880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 98.352345][ T9972] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 98.358904][ T9972] CR2: 00000000208c0000 CR3: 000000009ac7e000 CR4: 00000000001406f0 [ 98.366860][ T9972] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 98.374830][ T9972] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 98.382798][ T9972] Call Trace: [ 98.386071][ T9972] ? sctp_addto_chunk+0xe7/0x2a0 [ 98.390997][ T9972] skb_put.cold+0x23/0x23 [ 98.395393][ T9972] sctp_addto_chunk+0xe7/0x2a0 [ 98.400136][ T9972] sctp_make_strreset_req+0x392/0x3e0 [ 98.405484][ T9972] ? sctp_make_ifwdtsn+0x150/0x150 [ 98.410574][ T9972] ? __kmalloc+0x608/0x770 [ 98.414969][ T9972] ? sctp_send_reset_streams+0x428/0xdd0 [ 98.420751][ T9972] sctp_send_reset_streams+0x7f9/0xdd0 [ 98.426187][ T9972] sctp_setsockopt+0x252f/0x7350 [ 98.431104][ T9972] ? sctp_setsockopt_bindx+0x2a0/0x2a0 [ 98.436539][ T9972] ? sock_has_perm+0x214/0x2b0 [ 98.441295][ T9972] ? selinux_secmark_relabel_packet+0xe0/0xe0 [ 98.447341][ T9972] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.453555][ T9972] ? selinux_netlbl_socket_setsockopt+0xb5/0x450 [ 98.459858][ T9972] ? selinux_netlbl_sock_rcv_skb+0x4f0/0x4f0 [ 98.465824][ T9972] ? __local_bh_enable_ip+0x15a/0x270 [ 98.471178][ T9972] sock_common_setsockopt+0x94/0xd0 [ 98.476366][ T9972] __sys_setsockopt+0x261/0x4c0 [ 98.481192][ T9972] ? sock_create_kern+0x50/0x50 [ 98.486019][ T9972] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 98.492239][ T9972] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 98.497671][ T9972] ? do_syscall_64+0x26/0x790 [ 98.502324][ T9972] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 98.508367][ T9972] ? do_syscall_64+0x26/0x790 [ 98.513023][ T9972] __x64_sys_setsockopt+0xbe/0x150 [ 98.518113][ T9972] do_syscall_64+0xfa/0x790 [ 98.522593][ T9972] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 98.528462][ T9972] RIP: 0033:0x4402d9 [ 98.532334][ T9972] 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 [ 98.551925][ T9972] RSP: 002b:00007ffcc69e1aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 98.560314][ T9972] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402d9 [ 98.568262][ T9972] RDX: 0000000000000077 RSI: 0000000000000084 RDI: 0000000000000003 [ 98.576218][ T9972] RBP: 00000000006ca018 R08: 00000000000002de R09: 00000000004002c8 [ 98.584254][ T9972] R10: 000000002081e000 R11: 0000000000000246 R12: 0000000000401b60 [ 98.592207][ T9972] R13: 0000000000401bf0 R14: 0000000000000000 R15: 0000000000000000 [ 98.600167][ T9972] Modules linked in: [ 98.604274][ T9972] ---[ end trace f0220c60a3925a8f ]--- [ 98.609830][ T9972] RIP: 0010:skb_panic+0x176/0x178 [ 98.614833][ T9972] Code: 6d 9e fb 4c 8b 4d b8 8b 4b 70 41 57 45 89 f0 4c 89 ea ff 75 d0 4c 89 e6 48 c7 c7 60 f5 d4 88 ff 75 c8 ff 75 c0 e8 a2 ff 49 fb <0f> 0b e8 a7 b4 60 fb 4c 8b 6d 08 e8 6e 64 9e fb 48 c7 c1 00 02 d5 [ 98.634489][ T9972] RSP: 0018:ffffc90001e37990 EFLAGS: 00010282 [ 98.640573][ T9972] RAX: 0000000000000086 RBX: ffff88809f2e8340 RCX: 0000000000000000 [ 98.648717][ T9972] RDX: 0000000000000000 RSI: ffffffff815e8b56 RDI: fffff520003c6f24 [ 98.656700][ T9972] RBP: ffffc90001e379f8 R08: 0000000000000086 R09: ffffed1015d06621 [ 98.664723][ T9972] R10: ffffed1015d06620 R11: ffff8880ae833107 R12: ffffffff88d50240 [ 98.672764][ T9972] R13: ffffffff8734af37 R14: 0000000000000052 R15: ffffffff88d4f520 [ 98.680770][ T9972] FS: 00000000009a7880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 98.690100][ T9972] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 98.696672][ T9972] CR2: 00000000208c0000 CR3: 000000009ac7e000 CR4: 00000000001406f0 [ 98.705291][ T9972] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 98.713293][ T9972] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 98.721281][ T9972] Kernel panic - not syncing: Fatal exception [ 98.729259][ T9972] Kernel Offset: disabled [ 98.733589][ T9972] Rebooting in 86400 seconds..