Warning: Permanently added '10.128.0.118' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 84.232697][ T27] audit: type=1400 audit(1575928965.196:42): avc: denied { map } for pid=9788 comm="syz-executor212" path="/root/syz-executor212529062" 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 [ 84.237811][ T9788] ================================================================== [ 84.268072][ T9788] BUG: KASAN: null-ptr-deref in llcp_sock_getname+0x358/0x460 [ 84.275518][ T9788] Read of size 43 at addr 0000000000000000 by task syz-executor212/9788 [ 84.283815][ T9788] [ 84.286127][ T9788] CPU: 0 PID: 9788 Comm: syz-executor212 Not tainted 5.5.0-rc1-syzkaller #0 [ 84.294770][ T9788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.304891][ T9788] Call Trace: [ 84.308166][ T9788] dump_stack+0x197/0x210 [ 84.312479][ T9788] ? llcp_sock_getname+0x358/0x460 [ 84.317566][ T9788] ? llcp_sock_getname+0x358/0x460 [ 84.322671][ T9788] __kasan_report.cold+0x5/0x41 [ 84.327507][ T9788] ? llcp_sock_getname+0x358/0x460 [ 84.332614][ T9788] kasan_report+0x12/0x20 [ 84.336923][ T9788] check_memory_region+0x134/0x1a0 [ 84.342013][ T9788] memcpy+0x24/0x50 [ 84.345803][ T9788] llcp_sock_getname+0x358/0x460 [ 84.350724][ T9788] __sys_getpeername+0x12b/0x290 [ 84.355652][ T9788] ? __ia32_sys_getsockname+0xb0/0xb0 [ 84.361035][ T9788] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 84.366481][ T9788] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 84.371922][ T9788] ? do_syscall_64+0x26/0x790 [ 84.376582][ T9788] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 84.382629][ T9788] ? do_syscall_64+0x26/0x790 [ 84.387818][ T9788] __x64_sys_getpeername+0x73/0xb0 [ 84.392913][ T9788] do_syscall_64+0xfa/0x790 [ 84.397403][ T9788] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 84.403271][ T9788] RIP: 0033:0x440349 [ 84.407149][ T9788] 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 [ 84.426741][ T9788] RSP: 002b:00007fffb8bb6758 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 [ 84.435127][ T9788] RAX: ffffffffffffffda RBX: fe7f62c7329d9aaa RCX: 0000000000440349 [ 84.443075][ T9788] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 84.451024][ T9788] RBP: 65e500001d7ef6cc R08: 00007fffb8bb68c8 R09: 00007fffb8bb68c8 [ 84.458989][ T9788] R10: 00007fffb8bb68c8 R11: 0000000000000246 R12: 211e267fffffffff [ 84.466934][ T9788] R13: ffff000000004d02 R14: aac8030fa4d62b9c R15: d303a55487e71188 [ 84.474895][ T9788] ================================================================== [ 84.482928][ T9788] Disabling lock debugging due to kernel taint [ 84.489180][ T9788] Kernel panic - not syncing: panic_on_warn set ... [ 84.495768][ T9788] CPU: 0 PID: 9788 Comm: syz-executor212 Tainted: G B 5.5.0-rc1-syzkaller #0 [ 84.505941][ T9788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.515969][ T9788] Call Trace: [ 84.519243][ T9788] dump_stack+0x197/0x210 [ 84.523548][ T9788] panic+0x2e3/0x75c [ 84.527417][ T9788] ? add_taint.cold+0x16/0x16 [ 84.532068][ T9788] ? llcp_sock_getname+0x358/0x460 [ 84.537152][ T9788] ? preempt_schedule+0x4b/0x60 [ 84.542007][ T9788] ? ___preempt_schedule+0x16/0x18 [ 84.547156][ T9788] ? trace_hardirqs_on+0x5e/0x240 [ 84.552171][ T9788] ? llcp_sock_getname+0x358/0x460 [ 84.557265][ T9788] end_report+0x47/0x4f [ 84.561437][ T9788] ? llcp_sock_getname+0x358/0x460 [ 84.566524][ T9788] __kasan_report.cold+0xe/0x41 [ 84.571354][ T9788] ? llcp_sock_getname+0x358/0x460 [ 84.576439][ T9788] kasan_report+0x12/0x20 [ 84.580748][ T9788] check_memory_region+0x134/0x1a0 [ 84.585835][ T9788] memcpy+0x24/0x50 [ 84.589664][ T9788] llcp_sock_getname+0x358/0x460 [ 84.594707][ T9788] __sys_getpeername+0x12b/0x290 [ 84.599711][ T9788] ? __ia32_sys_getsockname+0xb0/0xb0 [ 84.605064][ T9788] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 84.610543][ T9788] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 84.616029][ T9788] ? do_syscall_64+0x26/0x790 [ 84.620687][ T9788] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 84.626734][ T9788] ? do_syscall_64+0x26/0x790 [ 84.631451][ T9788] __x64_sys_getpeername+0x73/0xb0 [ 84.636544][ T9788] do_syscall_64+0xfa/0x790 [ 84.641023][ T9788] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 84.646890][ T9788] RIP: 0033:0x440349 [ 84.650763][ T9788] 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 [ 84.670339][ T9788] RSP: 002b:00007fffb8bb6758 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 [ 84.678722][ T9788] RAX: ffffffffffffffda RBX: fe7f62c7329d9aaa RCX: 0000000000440349 [ 84.686665][ T9788] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 84.694627][ T9788] RBP: 65e500001d7ef6cc R08: 00007fffb8bb68c8 R09: 00007fffb8bb68c8 [ 84.702585][ T9788] R10: 00007fffb8bb68c8 R11: 0000000000000246 R12: 211e267fffffffff [ 84.710546][ T9788] R13: ffff000000004d02 R14: aac8030fa4d62b9c R15: d303a55487e71188 [ 84.720039][ T9788] Kernel Offset: disabled [ 84.724368][ T9788] Rebooting in 86400 seconds..