[ 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 '10.128.0.183' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 121.810444][ T6375] ===================================================== [ 121.817430][ T6375] BUG: KMSAN: uninit-value in mbind_range+0x1a46/0x1e80 [ 121.824361][ T6375] mbind_range+0x1a46/0x1e80 [ 121.828937][ T6375] do_mbind+0xf42/0x15f0 [ 121.833176][ T6375] __se_sys_mbind+0x437/0xb80 [ 121.837834][ T6375] __x64_sys_mbind+0x19d/0x200 [ 121.842577][ T6375] do_syscall_64+0x54/0xd0 [ 121.846973][ T6375] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 121.852851][ T6375] [ 121.855154][ T6375] Uninit was created at: [ 121.859381][ T6375] kmem_cache_alloc+0x751/0xff0 [ 121.864259][ T6375] do_mbind+0x912/0x15f0 [ 121.868507][ T6375] __se_sys_mbind+0x437/0xb80 [ 121.873166][ T6375] __x64_sys_mbind+0x19d/0x200 [ 121.877914][ T6375] do_syscall_64+0x54/0xd0 [ 121.882331][ T6375] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 121.888217][ T6375] ===================================================== [ 121.895123][ T6375] Disabling lock debugging due to kernel taint [ 121.901294][ T6375] Kernel panic - not syncing: panic_on_kmsan set ... [ 121.907946][ T6375] CPU: 1 PID: 6375 Comm: syz-executor129 Tainted: G B 5.15.0-rc2-syzkaller #0 [ 121.918077][ T6375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 121.928115][ T6375] Call Trace: [ 121.931380][ T6375] dump_stack_lvl+0x1ff/0x28e [ 121.936045][ T6375] dump_stack+0x25/0x28 [ 121.940182][ T6375] panic+0x44f/0xdeb [ 121.944060][ T6375] ? add_taint+0x187/0x210 [ 121.948464][ T6375] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 121.954610][ T6375] kmsan_report+0x2ee/0x300 [ 121.959114][ T6375] ? __msan_warning+0xd7/0x150 [ 121.963872][ T6375] ? mbind_range+0x1a46/0x1e80 [ 121.968625][ T6375] ? do_mbind+0xf42/0x15f0 [ 121.973024][ T6375] ? __se_sys_mbind+0x437/0xb80 [ 121.977858][ T6375] ? __x64_sys_mbind+0x19d/0x200 [ 121.982779][ T6375] ? do_syscall_64+0x54/0xd0 [ 121.987347][ T6375] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 121.993406][ T6375] __msan_warning+0xd7/0x150 [ 121.997983][ T6375] mbind_range+0x1a46/0x1e80 [ 122.002568][ T6375] do_mbind+0xf42/0x15f0 [ 122.006858][ T6375] ? __msan_memset+0x105/0x150 [ 122.011628][ T6375] __se_sys_mbind+0x437/0xb80 [ 122.016301][ T6375] __x64_sys_mbind+0x19d/0x200 [ 122.021056][ T6375] do_syscall_64+0x54/0xd0 [ 122.025456][ T6375] ? syscall_exit_to_user_mode+0xa4/0xc0 [ 122.031071][ T6375] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 122.036949][ T6375] RIP: 0033:0x7f611522e829 [ 122.041346][ T6375] 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 [ 122.060935][ T6375] RSP: 002b:00007f61151e0308 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed [ 122.069332][ T6375] RAX: ffffffffffffffda RBX: 00007f61152b63e8 RCX: 00007f611522e829 [ 122.077329][ T6375] RDX: 0000000000002001 RSI: 0000000000c00007 RDI: 0000000020012000 [ 122.085278][ T6375] RBP: 00007f61152b63e0 R08: 0000000000000000 R09: 0000010000000002 [ 122.093273][ T6375] R10: 0000000000000000 R11: 0000000000000246 R12: 0000010000000002 [ 122.101221][ T6375] R13: 00007ffcc34c6a1f R14: 00007f61151e0400 R15: 0000000000022000 [ 122.110529][ T6375] Kernel Offset: disabled [ 122.114925][ T6375] Rebooting in 86400 seconds..