[ 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 '10.128.1.83' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 130.221083][ T6364] ===================================================== [ 130.228059][ T6364] BUG: KMSAN: uninit-value in mbind_range+0x1a46/0x1e80 [ 130.234998][ T6364] mbind_range+0x1a46/0x1e80 [ 130.239576][ T6364] do_mbind+0xf42/0x15f0 [ 130.243808][ T6364] __se_sys_mbind+0x437/0xb80 [ 130.248558][ T6364] __x64_sys_mbind+0x19d/0x200 [ 130.253347][ T6364] do_syscall_64+0x54/0xd0 [ 130.257748][ T6364] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 130.263657][ T6364] [ 130.265969][ T6364] Uninit was created at: [ 130.270202][ T6364] kmem_cache_alloc+0x751/0xff0 [ 130.275035][ T6364] do_mbind+0x912/0x15f0 [ 130.279265][ T6364] __se_sys_mbind+0x437/0xb80 [ 130.283927][ T6364] __x64_sys_mbind+0x19d/0x200 [ 130.288679][ T6364] do_syscall_64+0x54/0xd0 [ 130.293078][ T6364] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 130.298957][ T6364] ===================================================== [ 130.305873][ T6364] Disabling lock debugging due to kernel taint [ 130.312012][ T6364] Kernel panic - not syncing: panic_on_kmsan set ... [ 130.318663][ T6364] CPU: 0 PID: 6364 Comm: syz-executor762 Tainted: G B 5.15.0-rc2-syzkaller #0 [ 130.328794][ T6364] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 130.338835][ T6364] Call Trace: [ 130.342105][ T6364] dump_stack_lvl+0x1ff/0x28e [ 130.346777][ T6364] dump_stack+0x25/0x28 [ 130.350917][ T6364] panic+0x44f/0xdeb [ 130.354802][ T6364] ? add_taint+0x187/0x210 [ 130.359392][ T6364] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 130.365532][ T6364] kmsan_report+0x2ee/0x300 [ 130.370023][ T6364] ? __msan_warning+0xd7/0x150 [ 130.374772][ T6364] ? mbind_range+0x1a46/0x1e80 [ 130.379520][ T6364] ? do_mbind+0xf42/0x15f0 [ 130.383922][ T6364] ? __se_sys_mbind+0x437/0xb80 [ 130.388763][ T6364] ? __x64_sys_mbind+0x19d/0x200 [ 130.393684][ T6364] ? do_syscall_64+0x54/0xd0 [ 130.398256][ T6364] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 130.404315][ T6364] __msan_warning+0xd7/0x150 [ 130.408894][ T6364] mbind_range+0x1a46/0x1e80 [ 130.413477][ T6364] do_mbind+0xf42/0x15f0 [ 130.417717][ T6364] ? __msan_memset+0x105/0x150 [ 130.422470][ T6364] __se_sys_mbind+0x437/0xb80 [ 130.427136][ T6364] __x64_sys_mbind+0x19d/0x200 [ 130.431887][ T6364] do_syscall_64+0x54/0xd0 [ 130.436286][ T6364] ? syscall_exit_to_user_mode+0xa4/0xc0 [ 130.441902][ T6364] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 130.447781][ T6364] RIP: 0033:0x7f576b1a7829 [ 130.452179][ T6364] 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 [ 130.471768][ T6364] RSP: 002b:00007f576b159308 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed [ 130.480164][ T6364] RAX: ffffffffffffffda RBX: 00007f576b22f3e8 RCX: 00007f576b1a7829 [ 130.488116][ T6364] RDX: 0000000000002001 RSI: 0000000000c00007 RDI: 0000000020012000 [ 130.496069][ T6364] RBP: 00007f576b22f3e0 R08: 0000000000000000 R09: 0000010000000002 [ 130.504024][ T6364] R10: 0000000000000000 R11: 0000000000000246 R12: 0000010000000002 [ 130.511976][ T6364] R13: 00007ffe3cf9029f R14: 00007f576b159400 R15: 0000000000022000 [ 130.520212][ T6364] Kernel Offset: disabled [ 130.524523][ T6364] Rebooting in 86400 seconds..