[ 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 '10.128.0.74' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 131.636012][ T6355] ===================================================== [ 131.643025][ T6355] BUG: KMSAN: uninit-value in mbind_range+0x1a46/0x1e80 [ 131.649984][ T6355] mbind_range+0x1a46/0x1e80 [ 131.654596][ T6355] do_mbind+0xf42/0x15f0 [ 131.658880][ T6355] __se_sys_mbind+0x437/0xb80 [ 131.663571][ T6355] __x64_sys_mbind+0x19d/0x200 [ 131.668355][ T6355] do_syscall_64+0x54/0xd0 [ 131.672794][ T6355] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 131.678713][ T6355] [ 131.681040][ T6355] Uninit was created at: [ 131.685308][ T6355] kmem_cache_alloc+0x751/0xff0 [ 131.690184][ T6355] do_mbind+0x912/0x15f0 [ 131.694449][ T6355] __se_sys_mbind+0x437/0xb80 [ 131.699145][ T6355] __x64_sys_mbind+0x19d/0x200 [ 131.703935][ T6355] do_syscall_64+0x54/0xd0 [ 131.708366][ T6355] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 131.714287][ T6355] ===================================================== [ 131.721216][ T6355] Disabling lock debugging due to kernel taint [ 131.727365][ T6355] Kernel panic - not syncing: panic_on_kmsan set ... [ 131.734047][ T6355] CPU: 1 PID: 6355 Comm: syz-executor050 Tainted: G B 5.15.0-rc2-syzkaller #0 [ 131.744239][ T6355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 131.754427][ T6355] Call Trace: [ 131.757703][ T6355] dump_stack_lvl+0x1ff/0x28e [ 131.762388][ T6355] dump_stack+0x25/0x28 [ 131.766562][ T6355] panic+0x44f/0xdeb [ 131.770459][ T6355] ? add_taint+0x187/0x210 [ 131.774973][ T6355] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 131.783037][ T6355] kmsan_report+0x2ee/0x300 [ 131.787557][ T6355] ? __msan_warning+0xd7/0x150 [ 131.792335][ T6355] ? mbind_range+0x1a46/0x1e80 [ 131.797119][ T6355] ? do_mbind+0xf42/0x15f0 [ 131.801540][ T6355] ? __se_sys_mbind+0x437/0xb80 [ 131.806390][ T6355] ? __x64_sys_mbind+0x19d/0x200 [ 131.811316][ T6355] ? do_syscall_64+0x54/0xd0 [ 131.815895][ T6355] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 131.821967][ T6355] __msan_warning+0xd7/0x150 [ 131.826548][ T6355] mbind_range+0x1a46/0x1e80 [ 131.831134][ T6355] do_mbind+0xf42/0x15f0 [ 131.835382][ T6355] ? __msan_memset+0x105/0x150 [ 131.840134][ T6355] __se_sys_mbind+0x437/0xb80 [ 131.844800][ T6355] __x64_sys_mbind+0x19d/0x200 [ 131.849563][ T6355] do_syscall_64+0x54/0xd0 [ 131.853970][ T6355] ? exc_page_fault+0x76/0x120 [ 131.858758][ T6355] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 131.864663][ T6355] RIP: 0033:0x7f2f0b5db829 [ 131.869068][ T6355] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 131.888664][ T6355] RSP: 002b:00007f2f0b58d308 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed [ 131.897066][ T6355] RAX: ffffffffffffffda RBX: 00007f2f0b6633e8 RCX: 00007f2f0b5db829 [ 131.905023][ T6355] RDX: 0000000000002001 RSI: 0000000000c00007 RDI: 0000000020012000 [ 131.912983][ T6355] RBP: 00007f2f0b6633e0 R08: 0000000000000000 R09: 0000010000000002 [ 131.921024][ T6355] R10: 0000000000000000 R11: 0000000000000246 R12: 0000010000000002 [ 131.928979][ T6355] R13: 00007ffd7a4144ff R14: 00007f2f0b58d400 R15: 0000000000022000 [ 131.937031][ T6355] Kernel Offset: disabled [ 131.941339][ T6355] Rebooting in 86400 seconds..