Starting Permit User Sessions... [ OK ] Started Daily Cleanup of Temporary Directories. [ OK ] Reached target Timers. [ OK ] Started Regular background program processing daemon. Starting getty on tty2-tty6 if dbus and logind are not available... [ OK ] Started System Logging Service. [ OK ] Started Permit User Sessions. [ OK ] Found device /dev/ttyS0. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ 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 Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ 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 '10.128.0.129' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 66.126183][ T28] audit: type=1400 audit(1593054639.512:8): avc: denied { execmem } for pid=6809 comm="syz-executor611" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 66.129190][ T6809] ------------[ cut here ]------------ [ 66.153327][ T6809] WARNING: CPU: 0 PID: 6809 at lib/idr.c:84 idr_alloc+0x11c/0x130 [ 66.161471][ T6809] Kernel panic - not syncing: panic_on_warn set ... [ 66.168626][ T6809] CPU: 0 PID: 6809 Comm: syz-executor611 Not tainted 5.7.0-syzkaller #0 [ 66.176965][ T6809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.187151][ T6809] Call Trace: [ 66.190456][ T6809] dump_stack+0x188/0x20d [ 66.194797][ T6809] ? idr_alloc+0x110/0x130 [ 66.199214][ T6809] panic+0x2e3/0x75c [ 66.203091][ T6809] ? add_taint.cold+0x16/0x16 [ 66.207765][ T6809] ? printk+0xba/0xed [ 66.211728][ T6809] ? log_store.cold+0x16/0x16 [ 66.216388][ T6809] ? __warn.cold+0x14/0x35 [ 66.220806][ T6809] ? __warn+0xd5/0x1c8 [ 66.224928][ T6809] ? idr_alloc+0x11c/0x130 [ 66.229330][ T6809] __warn.cold+0x2f/0x35 [ 66.233555][ T6809] ? idr_alloc+0x11c/0x130 [ 66.238015][ T6809] report_bug+0x27b/0x2f0 [ 66.242368][ T6809] do_error_trap+0x12b/0x220 [ 66.246973][ T6809] ? idr_alloc+0x11c/0x130 [ 66.251373][ T6809] do_invalid_op+0x32/0x40 [ 66.255813][ T6809] ? idr_alloc+0x11c/0x130 [ 66.260233][ T6809] invalid_op+0x23/0x30 [ 66.266111][ T6809] RIP: 0010:idr_alloc+0x11c/0x130 [ 66.272864][ T6809] Code: 00 00 00 44 89 e0 48 8b 4c 24 58 65 48 33 0c 25 28 00 00 00 75 1e 48 83 c4 60 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 b4 6d c4 fd <0f> 0b 41 bc ea ff ff ff eb b7 e8 f5 6c 95 fd 0f 1f 44 00 00 41 57 [ 66.293079][ T6809] RSP: 0018:ffffc90000f87c68 EFLAGS: 00010293 [ 66.299151][ T6809] RAX: ffff88809ede01c0 RBX: 00000000ffff0301 RCX: ffffffff83af606b [ 66.307116][ T6809] RDX: 0000000000000000 RSI: ffffffff83af610c RDI: 0000000000000005 [ 66.315075][ T6809] RBP: 1ffff920001f0f8d R08: ffff88809ede01c0 R09: fffffbfff1516d79 [ 66.323045][ T6809] R10: ffffffff8a8b6bc7 R11: fffffbfff1516d78 R12: 00000000ffff0300 [ 66.331173][ T6809] R13: ffffffff8a837ae0 R14: ffff8880a91ae040 R15: 0000000000000a20 [ 66.339153][ T6809] ? idr_alloc+0x7b/0x130 [ 66.343470][ T6809] ? idr_alloc+0x11c/0x130 [ 66.347870][ T6809] ? idr_alloc+0x11c/0x130 [ 66.352294][ T6809] ? idr_alloc_u32+0x2d0/0x2d0 [ 66.357057][ T6809] ? security_capable+0x8e/0xc0 [ 66.361896][ T6809] __qrtr_bind.isra.0+0x12e/0x5c0 [ 66.366904][ T6809] ? qrtr_release+0x2a0/0x2a0 [ 66.371580][ T6809] ? __local_bh_enable_ip+0x159/0x270 [ 66.376935][ T6809] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 66.382918][ T6809] ? lock_sock_nested+0x94/0x110 [ 66.387843][ T6809] ? lock_sock_nested+0x94/0x110 [ 66.392767][ T6809] qrtr_bind+0x1c1/0x24a [ 66.396991][ T6809] ? security_socket_bind+0x82/0xb0 [ 66.402177][ T6809] __sys_bind+0x20e/0x250 [ 66.406504][ T6809] ? __ia32_sys_socketpair+0xf0/0xf0 [ 66.412616][ T6809] ? down_read_nested+0x420/0x420 [ 66.417637][ T6809] ? vmacache_update+0xce/0x140 [ 66.422744][ T6809] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 66.428460][ T6809] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 66.434712][ T6809] ? do_syscall_64+0x21/0x7d0 [ 66.439419][ T6809] __x64_sys_bind+0x6f/0xb0 [ 66.443927][ T6809] do_syscall_64+0xf6/0x7d0 [ 66.448416][ T6809] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 66.454286][ T6809] RIP: 0033:0x4401a9 [ 66.458176][ T6809] 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 [ 66.477903][ T6809] RSP: 002b:00007ffe80ac0e78 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 66.486303][ T6809] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401a9 [ 66.494258][ T6809] RDX: 000000000000000c RSI: 0000000020000040 RDI: 0000000000000003 [ 66.502215][ T6809] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 66.510180][ T6809] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a30 [ 66.518133][ T6809] R13: 0000000000401ac0 R14: 0000000000000000 R15: 0000000000000000 [ 66.527475][ T6809] Kernel Offset: disabled [ 66.531862][ T6809] Rebooting in 86400 seconds..