[ 147.917486][ T32] audit: type=1400 audit(1582713182.964:37): avc: denied { watch } for pid=12308 comm="restorecond" path="/root/.ssh" dev="sda1" ino=16180 scontext=system_u:system_r:kernel_t:s0 tcontext=unconfined_u:object_r:ssh_home_t:s0 tclass=dir permissive=1 [ 147.977000][ T32] audit: type=1400 audit(1582713182.994:38): avc: denied { watch } for pid=12308 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. [ 148.584345][ T32] audit: type=1800 audit(1582713183.634:39): pid=12219 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 [ 148.612074][ T32] audit: type=1800 audit(1582713183.654:40): pid=12219 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: [ 151.419332][ T32] audit: type=1400 audit(1582713186.464:41): avc: denied { map } for pid=12393 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 '10.128.0.127' (ECDSA) to the list of known hosts. executing program [ 174.975111][ T32] audit: type=1400 audit(1582713210.024:42): avc: denied { map } for pid=12405 comm="syz-executor199" path="/root/syz-executor199793084" dev="sda1" ino=2339 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 174.990161][T12405] ===================================================== [ 175.002345][ T32] audit: type=1400 audit(1582713210.034:43): avc: denied { integrity } for pid=12405 comm="syz-executor199" lockdown_reason="debugfs access" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=lockdown permissive=1 [ 175.009130][T12405] BUG: KMSAN: uninit-value in strlen+0x5e/0xa0 [ 175.041971][T12405] CPU: 0 PID: 12405 Comm: syz-executor199 Not tainted 5.6.0-rc2-syzkaller #0 [ 175.050771][T12405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 175.060823][T12405] Call Trace: [ 175.064108][T12405] dump_stack+0x1c9/0x220 [ 175.068437][T12405] kmsan_report+0xf7/0x1e0 [ 175.072889][T12405] __msan_warning+0x58/0xa0 [ 175.077387][T12405] strlen+0x5e/0xa0 [ 175.081203][T12405] simple_attr_read+0x1ec/0x740 [ 175.086053][T12405] ? kmsan_get_metadata+0x11d/0x180 [ 175.091245][T12405] debugfs_attr_read+0x13e/0x290 [ 175.096192][T12405] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 175.101996][T12405] ? full_proxy_open+0xef0/0xef0 [ 175.106992][T12405] __vfs_read+0x1a9/0xc80 [ 175.111335][T12405] ? rw_verify_area+0x2c4/0x5b0 [ 175.116195][T12405] vfs_read+0x346/0x6a0 [ 175.120354][T12405] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 175.126195][T12405] ksys_read+0x267/0x450 [ 175.130445][T12405] __ia32_sys_read+0xdb/0x120 [ 175.135146][T12405] ? __se_sys_read+0xb0/0xb0 [ 175.139723][T12405] do_fast_syscall_32+0x3c7/0x6e0 [ 175.144754][T12405] entry_SYSENTER_compat+0x68/0x77 [ 175.149881][T12405] RIP: 0023:0xf7fe7d99 [ 175.153961][T12405] Code: 90 e8 0b 00 00 00 f3 90 0f ae e8 eb f9 8d 74 26 00 89 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 175.173555][T12405] RSP: 002b:00000000ff84ccac EFLAGS: 00000282 ORIG_RAX: 0000000000000003 [ 175.181956][T12405] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000000000 [ 175.189927][T12405] RDX: 0000000000000000 RSI: 00000000080ea088 RDI: 00000000ff84cd00 [ 175.197886][T12405] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 175.205845][T12405] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 175.213810][T12405] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 175.221787][T12405] [ 175.224103][T12405] Uninit was created at: [ 175.228331][T12405] kmsan_internal_poison_shadow+0x66/0xd0 [ 175.234034][T12405] kmsan_slab_alloc+0x8a/0xe0 [ 175.238692][T12405] kmem_cache_alloc_trace+0x6f3/0xd70 [ 175.244050][T12405] simple_attr_open+0xd4/0x400 [ 175.248799][T12405] lowpan_enable_fops_open+0x94/0xb0 [ 175.254070][T12405] open_proxy_open+0x657/0x800 [ 175.258827][T12405] do_dentry_open+0xf89/0x1820 [ 175.263573][T12405] vfs_open+0xaf/0xe0 [ 175.267535][T12405] path_openat+0x4d57/0x6bd0 [ 175.272107][T12405] do_filp_open+0x2b8/0x710 [ 175.276596][T12405] do_sys_openat2+0x92e/0xd40 [ 175.281257][T12405] __ia32_compat_sys_openat+0x2e5/0x350 [ 175.286786][T12405] do_fast_syscall_32+0x3c7/0x6e0 [ 175.291792][T12405] entry_SYSENTER_compat+0x68/0x77 [ 175.296879][T12405] ===================================================== [ 175.303792][T12405] Disabling lock debugging due to kernel taint [ 175.309940][T12405] Kernel panic - not syncing: panic_on_warn set ... [ 175.316532][T12405] CPU: 0 PID: 12405 Comm: syz-executor199 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 175.326690][T12405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 175.336730][T12405] Call Trace: [ 175.340044][T12405] dump_stack+0x1c9/0x220 [ 175.344373][T12405] panic+0x3d5/0xc3e [ 175.348297][T12405] kmsan_report+0x1df/0x1e0 [ 175.352793][T12405] __msan_warning+0x58/0xa0 [ 175.357289][T12405] strlen+0x5e/0xa0 [ 175.361092][T12405] simple_attr_read+0x1ec/0x740 [ 175.365964][T12405] ? kmsan_get_metadata+0x11d/0x180 [ 175.371265][T12405] debugfs_attr_read+0x13e/0x290 [ 175.376237][T12405] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 175.382029][T12405] ? full_proxy_open+0xef0/0xef0 [ 175.386958][T12405] __vfs_read+0x1a9/0xc80 [ 175.391290][T12405] ? rw_verify_area+0x2c4/0x5b0 [ 175.396146][T12405] vfs_read+0x346/0x6a0 [ 175.400331][T12405] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 175.406127][T12405] ksys_read+0x267/0x450 [ 175.410390][T12405] __ia32_sys_read+0xdb/0x120 [ 175.415068][T12405] ? __se_sys_read+0xb0/0xb0 [ 175.419656][T12405] do_fast_syscall_32+0x3c7/0x6e0 [ 175.424687][T12405] entry_SYSENTER_compat+0x68/0x77 [ 175.429779][T12405] RIP: 0023:0xf7fe7d99 [ 175.433835][T12405] Code: 90 e8 0b 00 00 00 f3 90 0f ae e8 eb f9 8d 74 26 00 89 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 175.453443][T12405] RSP: 002b:00000000ff84ccac EFLAGS: 00000282 ORIG_RAX: 0000000000000003 [ 175.461843][T12405] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000000000 [ 175.469804][T12405] RDX: 0000000000000000 RSI: 00000000080ea088 RDI: 00000000ff84cd00 [ 175.477771][T12405] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 175.485733][T12405] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 175.493702][T12405] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 175.502677][T12405] Kernel Offset: 0x15800000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 175.514297][T12405] Rebooting in 86400 seconds..