[ OK ] Started OpenBSD Secure Shell server. [ 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 '10.128.0.226' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 131.514994][ T6372] ===================================================== [ 131.522007][ T6372] BUG: KMSAN: uninit-value in mbind_range+0x1a46/0x1e80 [ 131.529003][ T6372] mbind_range+0x1a46/0x1e80 [ 131.533625][ T6372] do_mbind+0xf42/0x15f0 [ 131.538067][ T6372] __se_sys_mbind+0x437/0xb80 [ 131.542769][ T6372] __x64_sys_mbind+0x19d/0x200 [ 131.547564][ T6372] do_syscall_64+0x54/0xd0 [ 131.552003][ T6372] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 131.558030][ T6372] [ 131.560364][ T6372] Uninit was created at: [ 131.564636][ T6372] kmem_cache_alloc+0x751/0xff0 [ 131.569501][ T6372] do_mbind+0x912/0x15f0 [ 131.573772][ T6372] __se_sys_mbind+0x437/0xb80 [ 131.578478][ T6372] __x64_sys_mbind+0x19d/0x200 [ 131.583274][ T6372] do_syscall_64+0x54/0xd0 [ 131.587713][ T6372] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 131.593639][ T6372] ===================================================== [ 131.600571][ T6372] Disabling lock debugging due to kernel taint [ 131.606725][ T6372] Kernel panic - not syncing: panic_on_kmsan set ... [ 131.613422][ T6372] CPU: 1 PID: 6372 Comm: syz-executor174 Tainted: G B 5.15.0-rc2-syzkaller #0 [ 131.623558][ T6372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 131.633600][ T6372] Call Trace: [ 131.636877][ T6372] dump_stack_lvl+0x1ff/0x28e [ 131.641549][ T6372] dump_stack+0x25/0x28 [ 131.645694][ T6372] panic+0x44f/0xdeb [ 131.649582][ T6372] ? add_taint+0x187/0x210 [ 131.653991][ T6372] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 131.660235][ T6372] kmsan_report+0x2ee/0x300 [ 131.664855][ T6372] ? __msan_warning+0xd7/0x150 [ 131.669633][ T6372] ? mbind_range+0x1a46/0x1e80 [ 131.674748][ T6372] ? do_mbind+0xf42/0x15f0 [ 131.679239][ T6372] ? __se_sys_mbind+0x437/0xb80 [ 131.685663][ T6372] ? __x64_sys_mbind+0x19d/0x200 [ 131.690589][ T6372] ? do_syscall_64+0x54/0xd0 [ 131.695163][ T6372] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 131.701233][ T6372] __msan_warning+0xd7/0x150 [ 131.705813][ T6372] mbind_range+0x1a46/0x1e80 [ 131.710398][ T6372] do_mbind+0xf42/0x15f0 [ 131.714651][ T6372] ? __msan_memset+0x105/0x150 [ 131.719400][ T6372] __se_sys_mbind+0x437/0xb80 [ 131.724067][ T6372] __x64_sys_mbind+0x19d/0x200 [ 131.728821][ T6372] do_syscall_64+0x54/0xd0 [ 131.733249][ T6372] ? exc_page_fault+0x76/0x120 [ 131.738002][ T6372] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 131.743922][ T6372] RIP: 0033:0x7f11d252a829 [ 131.748331][ T6372] 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 [ 131.768119][ T6372] RSP: 002b:00007f11d24dc308 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed [ 131.776681][ T6372] RAX: ffffffffffffffda RBX: 00007f11d25b23e8 RCX: 00007f11d252a829 [ 131.784640][ T6372] RDX: 0000000000002001 RSI: 0000000000c00007 RDI: 0000000020012000 [ 131.792691][ T6372] RBP: 00007f11d25b23e0 R08: 0000000000000000 R09: 0000010000000002 [ 131.800646][ T6372] R10: 0000000000000000 R11: 0000000000000246 R12: 0000010000000002 [ 131.808605][ T6372] R13: 00007fffe3ef604f R14: 00007f11d24dc400 R15: 0000000000022000 [ 131.817422][ T6372] Kernel Offset: disabled [ 131.821742][ T6372] Rebooting in 86400 seconds..