[ 124.816089][ T32] audit: type=1400 audit(1583270169.878:37): avc: denied { watch } for pid=11633 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 [ 124.846430][ T32] audit: type=1400 audit(1583270169.878:38): avc: denied { watch } for pid=11633 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. [ 125.424282][ T32] audit: type=1800 audit(1583270170.488:39): pid=11542 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 [ 125.450338][ T32] audit: type=1800 audit(1583270170.508:40): pid=11542 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: [ 129.335818][ T32] audit: type=1400 audit(1583270174.398:41): avc: denied { map } for pid=11716 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 '10.128.0.66' (ECDSA) to the list of known hosts. executing program [ 137.875594][ T32] audit: type=1400 audit(1583270182.938:42): avc: denied { map } for pid=11728 comm="syz-executor231" path="/root/syz-executor231783098" 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 [ 137.891493][T11728] ===================================================== [ 137.909642][T11728] BUG: KMSAN: uninit-value in slhc_compress+0x5b9/0x2e60 [ 137.916684][T11728] CPU: 0 PID: 11728 Comm: syz-executor231 Not tainted 5.6.0-rc2-syzkaller #0 [ 137.925461][T11728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 137.935522][T11728] Call Trace: [ 137.938837][T11728] dump_stack+0x1c9/0x220 [ 137.943192][T11728] kmsan_report+0xf7/0x1e0 [ 137.947630][T11728] __msan_warning+0x58/0xa0 [ 137.952212][T11728] slhc_compress+0x5b9/0x2e60 [ 137.957026][T11728] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 137.963131][T11728] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 137.968972][T11728] ? __alloc_skb+0x762/0xac0 [ 137.973588][T11728] ? kmsan_get_metadata+0x11d/0x180 [ 137.978810][T11728] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 137.984641][T11728] __ppp_xmit_process+0x1902/0x2970 [ 137.989932][T11728] ppp_xmit_process+0x147/0x2f0 [ 137.994832][T11728] ppp_write+0x6bb/0x790 [ 137.999106][T11728] ? ppp_read+0xbf0/0xbf0 [ 138.003453][T11728] do_iter_write+0x812/0xdc0 [ 138.008231][T11728] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 138.014417][T11728] compat_writev+0x2df/0x5a0 [ 138.019061][T11728] ? __msan_poison_alloca+0xf0/0x120 [ 138.024372][T11728] ? kmsan_get_metadata+0x11d/0x180 [ 138.029598][T11728] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 138.035430][T11728] __ia32_compat_sys_pwritev+0x349/0x3f0 [ 138.041096][T11728] ? __x32_compat_sys_pwritev64+0x3b0/0x3b0 [ 138.047028][T11728] do_fast_syscall_32+0x3c7/0x6e0 [ 138.052085][T11728] entry_SYSENTER_compat+0x68/0x77 [ 138.057223][T11728] RIP: 0023:0xf7f7cd99 [ 138.061313][T11728] 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 [ 138.081190][T11728] RSP: 002b:00000000ffdb84ac EFLAGS: 00000217 ORIG_RAX: 000000000000014e [ 138.089624][T11728] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000200001c0 [ 138.097605][T11728] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000003 [ 138.105674][T11728] RBP: 0000000040047459 R08: 0000000000000000 R09: 0000000000000000 [ 138.113695][T11728] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 138.121780][T11728] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 138.129893][T11728] [ 138.132223][T11728] Uninit was created at: [ 138.136492][T11728] kmsan_internal_poison_shadow+0x66/0xd0 [ 138.142223][T11728] kmsan_slab_alloc+0x8a/0xe0 [ 138.146897][T11728] __kmalloc_node_track_caller+0xb40/0x1200 [ 138.152797][T11728] __alloc_skb+0x2fd/0xac0 [ 138.157228][T11728] ppp_write+0x115/0x790 [ 138.161475][T11728] do_iter_write+0x812/0xdc0 [ 138.166078][T11728] compat_writev+0x2df/0x5a0 [ 138.170766][T11728] __ia32_compat_sys_pwritev+0x349/0x3f0 [ 138.176428][T11728] do_fast_syscall_32+0x3c7/0x6e0 [ 138.181594][T11728] entry_SYSENTER_compat+0x68/0x77 [ 138.186719][T11728] ===================================================== [ 138.193653][T11728] Disabling lock debugging due to kernel taint [ 138.199812][T11728] Kernel panic - not syncing: panic_on_warn set ... [ 138.206431][T11728] CPU: 0 PID: 11728 Comm: syz-executor231 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 138.216801][T11728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 138.226946][T11728] Call Trace: [ 138.230253][T11728] dump_stack+0x1c9/0x220 [ 138.234607][T11728] panic+0x3d5/0xc3e [ 138.238542][T11728] kmsan_report+0x1df/0x1e0 [ 138.243083][T11728] __msan_warning+0x58/0xa0 [ 138.247722][T11728] slhc_compress+0x5b9/0x2e60 [ 138.252417][T11728] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 138.258263][T11728] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 138.264071][T11728] ? __alloc_skb+0x762/0xac0 [ 138.268675][T11728] ? kmsan_get_metadata+0x11d/0x180 [ 138.273879][T11728] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 138.279690][T11728] __ppp_xmit_process+0x1902/0x2970 [ 138.284937][T11728] ppp_xmit_process+0x147/0x2f0 [ 138.289815][T11728] ppp_write+0x6bb/0x790 [ 138.294074][T11728] ? ppp_read+0xbf0/0xbf0 [ 138.298412][T11728] do_iter_write+0x812/0xdc0 [ 138.303135][T11728] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 138.309351][T11728] compat_writev+0x2df/0x5a0 [ 138.313980][T11728] ? __msan_poison_alloca+0xf0/0x120 [ 138.319298][T11728] ? kmsan_get_metadata+0x11d/0x180 [ 138.324629][T11728] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 138.330458][T11728] __ia32_compat_sys_pwritev+0x349/0x3f0 [ 138.336119][T11728] ? __x32_compat_sys_pwritev64+0x3b0/0x3b0 [ 138.342043][T11728] do_fast_syscall_32+0x3c7/0x6e0 [ 138.347101][T11728] entry_SYSENTER_compat+0x68/0x77 [ 138.352216][T11728] RIP: 0023:0xf7f7cd99 [ 138.356299][T11728] 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 [ 138.375926][T11728] RSP: 002b:00000000ffdb84ac EFLAGS: 00000217 ORIG_RAX: 000000000000014e [ 138.384344][T11728] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000200001c0 [ 138.392327][T11728] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000003 [ 138.400306][T11728] RBP: 0000000040047459 R08: 0000000000000000 R09: 0000000000000000 [ 138.408303][T11728] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 138.416307][T11728] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 138.425085][T11728] ------------[ cut here ]------------ [ 138.430545][T11728] kernel BUG at mm/kmsan/kmsan.h:87! [ 138.435969][T11728] invalid opcode: 0000 [#1] SMP [ 138.440826][T11728] CPU: 0 PID: 11728 Comm: syz-executor231 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 138.451099][T11728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 138.461270][T11728] RIP: 0010:kmsan_internal_check_memory+0x3c0/0x3d0 [ 138.467849][T11728] Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b 48 c7 c7 06 4c 68 98 31 c0 e8 e1 70 48 ff 0f 0b 0f 0b 0f 0b 0f 0b e8 02 8f 48 ff 0f 0b <0f> 0b 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 83 ff [ 138.487446][T11728] RSP: 0018:ffffafa50157b3a8 EFLAGS: 00010046 [ 138.493572][T11728] RAX: 0000000000000002 RBX: 0000000007ec00a1 RCX: 0000000007ec00a1 [ 138.501538][T11728] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffafa50157b484 [ 138.509681][T11728] RBP: ffffafa50157b450 R08: 0000000000000000 R09: ffff9f98afc28ed0 [ 138.517950][T11728] R10: 0000000000000000 R11: ffffffff8f416f70 R12: 0000000000000000 [ 138.525933][T11728] R13: 0000000000000001 R14: 0000000000000002 R15: 0000000000000001 [ 138.533902][T11728] FS: 0000000000000000(0000) GS:ffff9f98afc00000(0063) knlGS:00000000089fb840 [ 138.542843][T11728] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 138.549423][T11728] CR2: 0000000020000200 CR3: 000000010cf0e000 CR4: 00000000001406f0 [ 138.557441][T11728] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 138.565399][T11728] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 138.573361][T11728] Call Trace: [ 138.576657][T11728] kmsan_check_memory+0xd/0x10 [ 138.581401][T11728] iowrite8+0x99/0x2e0 [ 138.585523][T11728] pvpanic_panic_notify+0x99/0xc0 [ 138.590542][T11728] ? pvpanic_mmio_remove+0x60/0x60 [ 138.595637][T11728] atomic_notifier_call_chain+0x12a/0x240 [ 138.601361][T11728] panic+0x468/0xc3e [ 138.605283][T11728] kmsan_report+0x1df/0x1e0 [ 138.609912][T11728] __msan_warning+0x58/0xa0 [ 138.614416][T11728] slhc_compress+0x5b9/0x2e60 [ 138.619093][T11728] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 138.624898][T11728] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 138.630832][T11728] ? __alloc_skb+0x762/0xac0 [ 138.635462][T11728] ? kmsan_get_metadata+0x11d/0x180 [ 138.641059][T11728] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 138.646866][T11728] __ppp_xmit_process+0x1902/0x2970 [ 138.652095][T11728] ppp_xmit_process+0x147/0x2f0 [ 138.657073][T11728] ppp_write+0x6bb/0x790 [ 138.661374][T11728] ? ppp_read+0xbf0/0xbf0 [ 138.665692][T11728] do_iter_write+0x812/0xdc0 [ 138.670397][T11728] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 138.676561][T11728] compat_writev+0x2df/0x5a0 [ 138.681167][T11728] ? __msan_poison_alloca+0xf0/0x120 [ 138.686448][T11728] ? kmsan_get_metadata+0x11d/0x180 [ 138.691926][T11728] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 138.697730][T11728] __ia32_compat_sys_pwritev+0x349/0x3f0 [ 138.703391][T11728] ? __x32_compat_sys_pwritev64+0x3b0/0x3b0 [ 138.709314][T11728] do_fast_syscall_32+0x3c7/0x6e0 [ 138.714333][T11728] entry_SYSENTER_compat+0x68/0x77 [ 138.719421][T11728] RIP: 0023:0xf7f7cd99 [ 138.723528][T11728] 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 [ 138.743238][T11728] RSP: 002b:00000000ffdb84ac EFLAGS: 00000217 ORIG_RAX: 000000000000014e [ 138.751658][T11728] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000200001c0 [ 138.759650][T11728] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000003 [ 138.767614][T11728] RBP: 0000000040047459 R08: 0000000000000000 R09: 0000000000000000 [ 138.775615][T11728] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 138.783691][T11728] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 138.791715][T11728] Modules linked in: [ 138.795705][T11728] ---[ end trace d876e6aee915fe58 ]--- [ 138.801182][T11728] RIP: 0010:kmsan_internal_check_memory+0x3c0/0x3d0 [ 138.807976][T11728] Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b 48 c7 c7 06 4c 68 98 31 c0 e8 e1 70 48 ff 0f 0b 0f 0b 0f 0b 0f 0b e8 02 8f 48 ff 0f 0b <0f> 0b 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 83 ff [ 138.827952][T11728] RSP: 0018:ffffafa50157b3a8 EFLAGS: 00010046 [ 138.833999][T11728] RAX: 0000000000000002 RBX: 0000000007ec00a1 RCX: 0000000007ec00a1 [ 138.841958][T11728] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffafa50157b484 [ 138.849972][T11728] RBP: ffffafa50157b450 R08: 0000000000000000 R09: ffff9f98afc28ed0 [ 138.857987][T11728] R10: 0000000000000000 R11: ffffffff8f416f70 R12: 0000000000000000 [ 138.865964][T11728] R13: 0000000000000001 R14: 0000000000000002 R15: 0000000000000001 [ 138.874022][T11728] FS: 0000000000000000(0000) GS:ffff9f98afc00000(0063) knlGS:00000000089fb840 [ 138.883050][T11728] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 138.889631][T11728] CR2: 0000000020000200 CR3: 000000010cf0e000 CR4: 00000000001406f0 [ 138.897598][T11728] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 138.905579][T11728] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 138.913548][T11728] Kernel panic - not syncing: Fatal exception in interrupt [ 138.921365][T11728] Kernel Offset: 0x9200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 138.932945][T11728] Rebooting in 86400 seconds..