[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.122' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 64.076825][ T28] audit: type=1400 audit(1594962397.758:8): avc: denied { execmem } for pid=6811 comm="syz-executor704" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 64.079941][ T6811] ------------[ cut here ]------------ [ 64.103106][ T6811] WARNING: CPU: 0 PID: 6811 at lib/idr.c:84 idr_alloc+0x11c/0x130 [ 64.112792][ T6811] Kernel panic - not syncing: panic_on_warn set ... [ 64.119376][ T6811] CPU: 0 PID: 6811 Comm: syz-executor704 Not tainted 5.8.0-rc5-syzkaller #0 [ 64.128026][ T6811] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.138066][ T6811] Call Trace: [ 64.141365][ T6811] dump_stack+0x18f/0x20d [ 64.145687][ T6811] panic+0x2e3/0x75c [ 64.149571][ T6811] ? __warn_printk+0xf3/0xf3 [ 64.154142][ T6811] ? printk+0xba/0xed [ 64.158112][ T6811] ? log_store.cold+0x16/0x16 [ 64.162819][ T6811] ? __warn.cold+0x5/0x45 [ 64.167163][ T6811] ? __warn+0xd6/0x1f2 [ 64.171219][ T6811] ? idr_alloc+0x11c/0x130 [ 64.175613][ T6811] __warn.cold+0x20/0x45 [ 64.179851][ T6811] ? idr_alloc+0x11c/0x130 [ 64.184255][ T6811] report_bug+0x1bd/0x210 [ 64.188567][ T6811] handle_bug+0x38/0x90 [ 64.192709][ T6811] ? cred_has_capability.isra.0+0x143/0x2b0 [ 64.198703][ T6811] exc_invalid_op+0x13/0x40 [ 64.203191][ T6811] asm_exc_invalid_op+0x12/0x20 [ 64.208021][ T6811] RIP: 0010:idr_alloc+0x11c/0x130 [ 64.213018][ T6811] Code: 00 00 00 48 8b 44 24 58 65 48 2b 04 25 28 00 00 00 75 21 48 83 c4 60 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 a4 18 c6 fd <0f> 0b 41 bc ea ff ff ff eb b7 e8 95 0b 38 04 0f 1f 44 00 00 41 57 [ 64.232612][ T6811] RSP: 0018:ffffc900019a7c80 EFLAGS: 00010293 [ 64.238667][ T6811] RAX: 0000000000000000 RBX: 00000000ffffe001 RCX: ffffffff83ada0bb [ 64.246632][ T6811] RDX: ffff88809d90e340 RSI: ffffffff83ada15c RDI: 0000000000000005 [ 64.254597][ T6811] RBP: 1ffff92000334f90 R08: 0000000000000a20 R09: ffff88809d90ec08 [ 64.262563][ T6811] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffe000 [ 64.270524][ T6811] R13: ffffffff8aa64f00 R14: ffff8880a91b2040 R15: 0000000000000a20 [ 64.278488][ T6811] ? idr_alloc+0x7b/0x130 [ 64.282794][ T6811] ? idr_alloc+0x11c/0x130 [ 64.287210][ T6811] ? idr_alloc_u32+0x2d0/0x2d0 [ 64.291967][ T6811] ? security_capable+0x8f/0xc0 [ 64.296801][ T6811] __qrtr_bind.isra.0+0x12e/0x5c0 [ 64.301824][ T6811] ? qrtr_release+0x2a0/0x2a0 [ 64.306494][ T6811] ? __local_bh_enable_ip+0x159/0x250 [ 64.311849][ T6811] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.317823][ T6811] ? lock_sock_nested+0x94/0x110 [ 64.322740][ T6811] ? trace_hardirqs_on+0x5f/0x220 [ 64.327747][ T6811] qrtr_bind+0x1c1/0x250 [ 64.331988][ T6811] ? security_socket_bind+0x83/0xb0 [ 64.337173][ T6811] __sys_bind+0x1e9/0x250 [ 64.341487][ T6811] ? __ia32_sys_socketpair+0xf0/0xf0 [ 64.346766][ T6811] ? _down_write_nest_lock+0x150/0x150 [ 64.352204][ T6811] ? vmacache_update+0xce/0x140 [ 64.357052][ T6811] ? lock_is_held_type+0xb0/0xe0 [ 64.361993][ T6811] ? lock_is_held_type+0xb0/0xe0 [ 64.366916][ T6811] ? do_syscall_64+0x1c/0xe0 [ 64.371482][ T6811] __x64_sys_bind+0x6f/0xb0 [ 64.375978][ T6811] ? lockdep_hardirqs_on+0x6a/0xe0 [ 64.381074][ T6811] do_syscall_64+0x60/0xe0 [ 64.385474][ T6811] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.391365][ T6811] RIP: 0033:0x440229 [ 64.395254][ T6811] Code: Bad RIP value. [ 64.399299][ T6811] RSP: 002b:00007ffc680b7528 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 64.407702][ T6811] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440229 [ 64.415671][ T6811] RDX: 000000000000000c RSI: 0000000020001380 RDI: 0000000000000003 [ 64.423627][ T6811] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 64.431585][ T6811] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a30 [ 64.439554][ T6811] R13: 0000000000401ac0 R14: 0000000000000000 R15: 0000000000000000 [ 64.448756][ T6811] Kernel Offset: disabled [ 64.453128][ T6811] Rebooting in 86400 seconds..