[ 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 '10.128.0.187' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 137.325366][ T8227] ===================================================== [ 137.332343][ T8227] BUG: KMSAN: uninit-value in mbind_range+0x1cd5/0x2100 [ 137.332692][ T8227] mbind_range+0x1cd5/0x2100 [ 137.332692][ T8227] do_mbind+0xf4f/0x15a0 [ 137.332692][ T8227] __x64_sys_mbind+0x473/0x4f0 [ 137.332692][ T8227] do_syscall_64+0x55/0xc0 [ 137.332692][ T8227] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 137.332692][ T8227] [ 137.332692][ T8227] Uninit was created at: [ 137.332692][ T8227] kmsan_internal_poison_memory+0x56/0xc0 [ 137.332692][ T8227] kmsan_slab_alloc+0xf5/0x160 [ 137.332692][ T8227] kmem_cache_alloc+0x70e/0x1050 [ 137.332692][ T8227] do_mbind+0x8d5/0x15a0 [ 137.332692][ T8227] __x64_sys_mbind+0x473/0x4f0 [ 137.332692][ T8227] do_syscall_64+0x55/0xc0 [ 137.332692][ T8227] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 137.332692][ T8227] ===================================================== [ 137.332692][ T8227] Disabling lock debugging due to kernel taint [ 137.332692][ T8227] Kernel panic - not syncing: panic_on_kmsan set ... [ 137.332692][ T8227] CPU: 0 PID: 8227 Comm: syz-executor384 Tainted: G B 5.13.0-syzkaller #0 [ 137.332692][ T8227] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 137.332692][ T8227] Call Trace: [ 137.332692][ T8227] dump_stack+0x25a/0x2f6 [ 137.332692][ T8227] panic+0x4c7/0xe98 [ 137.332692][ T8227] ? add_taint+0x187/0x210 [ 137.332692][ T8227] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 137.332692][ T8227] kmsan_report+0x2ee/0x300 [ 137.332692][ T8227] ? __msan_warning+0xd7/0x150 [ 137.332692][ T8227] ? mbind_range+0x1cd5/0x2100 [ 137.332692][ T8227] ? do_mbind+0xf4f/0x15a0 [ 137.332692][ T8227] ? __x64_sys_mbind+0x473/0x4f0 [ 137.332692][ T8227] ? do_syscall_64+0x55/0xc0 [ 137.332692][ T8227] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 137.332692][ T8227] ? find_vma+0xa6/0x380 [ 137.332692][ T8227] __msan_warning+0xd7/0x150 [ 137.332692][ T8227] mbind_range+0x1cd5/0x2100 [ 137.332692][ T8227] do_mbind+0xf4f/0x15a0 [ 137.332692][ T8227] ? do_syscall_64+0x55/0xc0 [ 137.332692][ T8227] __x64_sys_mbind+0x473/0x4f0 [ 137.332692][ T8227] do_syscall_64+0x55/0xc0 [ 137.332692][ T8227] ? asm_exc_page_fault+0x8/0x30 [ 137.332692][ T8227] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 137.332692][ T8227] RIP: 0033:0x7f574750b829 [ 137.332692][ T8227] 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 [ 137.332692][ T8227] RSP: 002b:00007f57474bd308 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed [ 137.332692][ T8227] RAX: ffffffffffffffda RBX: 00007f57475933e8 RCX: 00007f574750b829 [ 137.332692][ T8227] RDX: 0000000000002004 RSI: 0000000000800000 RDI: 0000000020001000 [ 137.332692][ T8227] RBP: 00007f57475933e0 R08: 0000000000000000 R09: 0000000000000000 [ 137.332692][ T8227] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f57475933ec [ 137.332692][ T8227] R13: 00007ffffb9af35f R14: 00007f57474bd400 R15: 0000000000022000 [ 137.332692][ T8227] Kernel Offset: disabled [ 137.332692][ T8227] Rebooting in 86400 seconds..