[ 65.507889][ T26] audit: type=1400 audit(1571990122.112:37): avc: denied { watch } for pid=9395 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 [ 65.540213][ T26] audit: type=1400 audit(1571990122.112:38): avc: denied { watch } for pid=9395 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 OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [ 65.744403][ T26] audit: type=1800 audit(1571990122.352:39): pid=9301 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 [ 65.767936][ T26] audit: type=1800 audit(1571990122.352:40): pid=9301 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: [ 70.724816][ T26] audit: type=1400 audit(1571990127.332:41): avc: denied { map } for pid=9481 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 '10.128.0.199' (ECDSA) to the list of known hosts. executing program executing program [ 77.482897][ T26] audit: type=1400 audit(1571990134.082:42): avc: denied { map } for pid=9493 comm="syz-executor915" path="/root/syz-executor915241351" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 77.496250][ T9502] ================================================================== [ 77.513753][ T9500] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 77.517984][ T9502] BUG: KASAN: null-ptr-deref in llcp_sock_getname+0x358/0x460 [ 77.525780][ T9500] #PF: supervisor read access in kernel mode [ 77.533216][ T9502] Read of size 63 at addr 0000000000000000 by task syz-executor915/9502 [ 77.539177][ T9500] #PF: error_code(0x0000) - not-present page [ 77.547494][ T9502] [ 77.553471][ T9500] PGD 93e63067 P4D 93e63067 PUD 9706a067 PMD 0 [ 77.555786][ T9502] CPU: 1 PID: 9502 Comm: syz-executor915 Not tainted 5.4.0-rc4+ #0 [ 77.561996][ T9500] Oops: 0000 [#1] PREEMPT SMP KASAN [ 77.569854][ T9502] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.575042][ T9500] CPU: 0 PID: 9500 Comm: syz-executor915 Not tainted 5.4.0-rc4+ #0 [ 77.585078][ T9502] Call Trace: [ 77.592946][ T9500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.596218][ T9502] dump_stack+0x172/0x1f0 [ 77.606266][ T9500] RIP: 0010:memcpy_erms+0x6/0x10 [ 77.610592][ T9502] ? llcp_sock_getname+0x358/0x460 [ 77.615612][ T9500] Code: 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 fe [ 77.620706][ T9502] ? llcp_sock_getname+0x358/0x460 [ 77.640287][ T9500] RSP: 0018:ffff88809442fba0 EFLAGS: 00010246 [ 77.645386][ T9502] __kasan_report.cold+0x5/0x41 [ 77.651430][ T9500] RAX: ffff88809442fd2a RBX: ffff88809442fd18 RCX: 000000000000003f [ 77.656266][ T9502] ? llcp_sock_getname+0x358/0x460 [ 77.664267][ T9500] RDX: 000000000000003f RSI: 0000000000000000 RDI: ffff88809442fd2a [ 77.664282][ T9500] RBP: ffff88809442fbc0 R08: 1ffff11012885fa5 R09: ffffed1012885fae [ 77.669398][ T9502] kasan_report+0x12/0x20 [ 77.677349][ T9500] R10: ffffed1012885fad R11: ffff88809442fd68 R12: 000000000000003f [ 77.685914][ T9502] check_memory_region+0x134/0x1a0 [ 77.690229][ T9500] R13: ffff88809442fd2a R14: 0000000000000000 R15: ffff88809202aa80 [ 77.698185][ T9502] memcpy+0x24/0x50 [ 77.703445][ T9500] FS: 000000000166d880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 77.711409][ T9502] llcp_sock_getname+0x358/0x460 [ 77.715198][ T9500] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.724133][ T9502] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 77.729071][ T9500] CR2: 0000000000000000 CR3: 00000000a7503000 CR4: 00000000001406f0 [ 77.735644][ T9502] sock_getsockopt+0x14a7/0x205e [ 77.741536][ T9500] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.749501][ T9502] ? release_sock+0x156/0x1c0 [ 77.754426][ T9500] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.762397][ T9502] ? sk_get_meminfo+0x4e0/0x4e0 [ 77.767042][ T9500] Call Trace: [ 77.775090][ T9502] ? selinux_secmark_relabel_packet+0xe0/0xe0 [ 77.780013][ T9500] ? memcpy+0x46/0x50 [ 77.783292][ T9502] ? llcp_raw_sock_bind+0x3f0/0x3f0 [ 77.789328][ T9500] llcp_sock_getname+0x358/0x460 [ 77.793289][ T9502] ? selinux_socket_getsockopt+0x36/0x40 [ 77.798471][ T9500] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 77.803379][ T9502] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.808994][ T9500] sock_getsockopt+0x14a7/0x205e [ 77.814858][ T9502] ? security_socket_getsockopt+0x8d/0xc0 [ 77.821086][ T9500] ? release_sock+0x156/0x1c0 [ 77.826003][ T9502] __sys_getsockopt+0x2c9/0x310 [ 77.831704][ T9500] ? sk_get_meminfo+0x4e0/0x4e0 [ 77.836357][ T9502] ? kernel_accept+0x310/0x310 [ 77.841197][ T9500] ? selinux_secmark_relabel_packet+0xe0/0xe0 [ 77.846032][ T9502] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 77.850788][ T9500] ? llcp_raw_sock_bind+0x3f0/0x3f0 [ 77.858043][ T9502] ? do_syscall_64+0x26/0x760 [ 77.863479][ T9500] ? selinux_socket_getsockopt+0x36/0x40 [ 77.868651][ T9502] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 77.873300][ T9500] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.878906][ T9502] ? do_syscall_64+0x26/0x760 [ 77.884941][ T9500] ? security_socket_getsockopt+0x8d/0xc0 [ 77.891159][ T9502] __x64_sys_getsockopt+0xbe/0x150 [ 77.895807][ T9500] __sys_getsockopt+0x2c9/0x310 [ 77.901501][ T9502] do_syscall_64+0xfa/0x760 [ 77.906586][ T9500] ? kernel_accept+0x310/0x310 [ 77.911420][ T9502] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 77.915896][ T9500] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 77.920640][ T9502] RIP: 0033:0x4412c9 [ 77.926518][ T9500] ? do_syscall_64+0x26/0x760 [ 77.931962][ T9502] Code: e8 ac e8 ff ff 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 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 77.935854][ T9500] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 77.940500][ T9502] RSP: 002b:00007ffcf9f91b08 EFLAGS: 00000246 ORIG_RAX: 0000000000000037 [ 77.960713][ T9500] ? do_syscall_64+0x26/0x760 [ 77.966833][ T9502] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412c9 [ 77.975219][ T9500] __x64_sys_getsockopt+0xbe/0x150 [ 77.979947][ T9502] RDX: 000000000000001c RSI: 0000000000000001 RDI: 0000000000000003 [ 77.987903][ T9500] do_syscall_64+0xfa/0x760 [ 77.992992][ T9502] RBP: 00000000006cb018 R08: 0000000020000140 R09: 00000000004002c8 [ 78.000943][ T9500] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 78.005409][ T9502] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402040 [ 78.013356][ T9500] RIP: 0033:0x4412c9 executing program executing program executing program [ 78.019224][ T9502] R13: 00000000004020d0 R14: 0000000000000000 R15: 0000000000000000 [ 78.027173][ T9500] Code: e8 ac e8 ff ff 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 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 78.031034][ T9502] ================================================================== [ 78.038977][ T9500] RSP: 002b:00007ffcf9f91b08 EFLAGS: 00000246 ORIG_RAX: 0000000000000037 [ 78.066263][ T9502] Kernel panic - not syncing: panic_on_warn set ... [ 78.066600][ T9500] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412c9 [ 78.089585][ T9500] RDX: 000000000000001c RSI: 0000000000000001 RDI: 0000000000000003 [ 78.097540][ T9500] RBP: 00000000006cb018 R08: 0000000020000140 R09: 00000000004002c8 [ 78.105494][ T9500] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402040 [ 78.113448][ T9500] R13: 00000000004020d0 R14: 0000000000000000 R15: 0000000000000000 [ 78.121408][ T9500] Modules linked in: [ 78.125288][ T9500] CR2: 0000000000000000 [ 78.130692][ T9502] Kernel Offset: disabled [ 78.135014][ T9502] Rebooting in 86400 seconds..