[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.191' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 79.029751][ T6550] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. [ 79.093434][ T6550] ------------[ cut here ]------------ [ 79.099010][ T6550] WARNING: CPU: 0 PID: 6550 at mm/util.c:597 kvmalloc_node+0x111/0x120 [ 79.107487][ T6550] Modules linked in: [ 79.111820][ T6550] CPU: 1 PID: 6550 Comm: syz-executor813 Not tainted 5.15.0-rc6-syzkaller #0 [ 79.120596][ T6550] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.130763][ T6550] RIP: 0010:kvmalloc_node+0x111/0x120 [ 79.136517][ T6550] Code: 01 00 00 00 4c 89 e7 e8 6d 18 0d 00 49 89 c5 e9 69 ff ff ff e8 60 91 d0 ff 41 89 ed 41 81 cd 00 20 01 00 eb 95 e8 4f 91 d0 ff <0f> 0b e9 4c ff ff ff 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 e8 36 [ 79.156284][ T6550] RSP: 0018:ffffc9000484f848 EFLAGS: 00010293 [ 79.162454][ T6550] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 79.170427][ T6550] RDX: ffff888021350000 RSI: ffffffff81a65bd1 RDI: 0000000000000003 [ 79.178548][ T6550] RBP: 0000000000400dc0 R08: 000000007fffffff R09: ffff8880b9c32a0b [ 79.186603][ T6550] R10: ffffffff81a65b8e R11: 000000000000003f R12: 00000000e0000000 [ 79.194631][ T6550] R13: 0000000000000000 R14: 00000000ffffffff R15: ffffc9000484fab0 [ 79.202665][ T6550] FS: 00005555559d3300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 79.211654][ T6550] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.218241][ T6550] CR2: 000056219616c188 CR3: 00000000702c0000 CR4: 00000000003526e0 [ 79.226274][ T6550] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.234309][ T6550] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.242424][ T6550] Call Trace: [ 79.245716][ T6550] kvm_page_track_create_memslot+0x50/0x110 [ 79.251710][ T6550] ? kvmalloc_node+0x69/0x120 [ 79.256432][ T6550] kvm_arch_prepare_memory_region+0x350/0x610 [ 79.262586][ T6550] kvm_set_memslot+0x172/0x1a40 [ 79.267455][ T6550] __kvm_set_memory_region+0xc1c/0x13d0 [ 79.273062][ T6550] ? kvm_delete_memslot+0x2b0/0x2b0 [ 79.278274][ T6550] ? __mutex_lock+0x21c/0x12f0 [ 79.283121][ T6550] ? mutex_lock_io_nested+0x1150/0x1150 [ 79.288703][ T6550] kvm_vm_ioctl+0x520/0x23d0 [ 79.293361][ T6550] ? tomoyo_path_number_perm+0x204/0x590 [ 79.299001][ T6550] ? lock_downgrade+0x6e0/0x6e0 [ 79.303906][ T6550] ? tomoyo_path_number_perm+0x441/0x590 [ 79.309550][ T6550] ? kfree+0xf3/0x550 [ 79.313586][ T6550] ? kvm_unregister_device_ops+0x90/0x90 [ 79.319238][ T6550] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 79.325536][ T6550] ? tomoyo_path_number_perm+0x24e/0x590 [ 79.331178][ T6550] ? tomoyo_execute_permission+0x4a0/0x4a0 [ 79.337045][ T6550] ? __sanitizer_cov_trace_switch+0x63/0xf0 [ 79.343015][ T6550] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 79.349267][ T6550] ? do_vfs_ioctl+0x132/0x15d0 [ 79.354078][ T6550] ? vfs_fileattr_set+0xbe0/0xbe0 [ 79.359123][ T6550] ? find_held_lock+0x2d/0x110 [ 79.364000][ T6550] ? btrfs_reset_sb_log_zones.cold+0x78/0xb6 [ 79.369999][ T6550] ? lock_downgrade+0x6e0/0x6e0 [ 79.374966][ T6550] ? lock_downgrade+0x6e0/0x6e0 [ 79.379869][ T6550] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 79.386247][ T6550] ? kvm_unregister_device_ops+0x90/0x90 [ 79.391959][ T6550] __x64_sys_ioctl+0x193/0x200 [ 79.396733][ T6550] do_syscall_64+0x35/0xb0 [ 79.401149][ T6550] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 79.407090][ T6550] RIP: 0033:0x7f74192b1029 [ 79.411575][ T6550] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 79.431444][ T6550] RSP: 002b:00007ffeaeb89728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 79.439894][ T6550] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f74192b1029 [ 79.447942][ T6550] RDX: 00000000200001c0 RSI: 000000004020ae46 RDI: 0000000000000004 [ 79.455987][ T6550] RBP: 00007f7419275010 R08: 0000000000000000 R09: 0000000000000000 [ 79.464019][ T6550] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f74192750a0 [ 79.472060][ T6550] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 79.480053][ T6550] Kernel panic - not syncing: panic_on_warn set ... [ 79.486619][ T6550] CPU: 1 PID: 6550 Comm: syz-executor813 Not tainted 5.15.0-rc6-syzkaller #0 [ 79.495385][ T6550] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.505441][ T6550] Call Trace: [ 79.508717][ T6550] dump_stack_lvl+0xcd/0x134 [ 79.513329][ T6550] panic+0x2b0/0x6dd [ 79.517245][ T6550] ? __warn_printk+0xf3/0xf3 [ 79.521845][ T6550] ? __warn.cold+0x1a/0x44 [ 79.526264][ T6550] ? kvmalloc_node+0x111/0x120 [ 79.531039][ T6550] __warn.cold+0x35/0x44 [ 79.535279][ T6550] ? kvmalloc_node+0x111/0x120 [ 79.540074][ T6550] report_bug+0x1bd/0x210 [ 79.544408][ T6550] handle_bug+0x3c/0x60 [ 79.548559][ T6550] exc_invalid_op+0x14/0x40 [ 79.553060][ T6550] asm_exc_invalid_op+0x12/0x20 [ 79.557914][ T6550] RIP: 0010:kvmalloc_node+0x111/0x120 [ 79.563287][ T6550] Code: 01 00 00 00 4c 89 e7 e8 6d 18 0d 00 49 89 c5 e9 69 ff ff ff e8 60 91 d0 ff 41 89 ed 41 81 cd 00 20 01 00 eb 95 e8 4f 91 d0 ff <0f> 0b e9 4c ff ff ff 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 e8 36 [ 79.582890][ T6550] RSP: 0018:ffffc9000484f848 EFLAGS: 00010293 [ 79.588961][ T6550] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 79.596925][ T6550] RDX: ffff888021350000 RSI: ffffffff81a65bd1 RDI: 0000000000000003 [ 79.604905][ T6550] RBP: 0000000000400dc0 R08: 000000007fffffff R09: ffff8880b9c32a0b [ 79.612869][ T6550] R10: ffffffff81a65b8e R11: 000000000000003f R12: 00000000e0000000 [ 79.620833][ T6550] R13: 0000000000000000 R14: 00000000ffffffff R15: ffffc9000484fab0 [ 79.628807][ T6550] ? kvmalloc_node+0xce/0x120 [ 79.633490][ T6550] ? kvmalloc_node+0x111/0x120 [ 79.638259][ T6550] ? kvmalloc_node+0x111/0x120 [ 79.643024][ T6550] kvm_page_track_create_memslot+0x50/0x110 [ 79.648924][ T6550] ? kvmalloc_node+0x69/0x120 [ 79.653603][ T6550] kvm_arch_prepare_memory_region+0x350/0x610 [ 79.659684][ T6550] kvm_set_memslot+0x172/0x1a40 [ 79.664546][ T6550] __kvm_set_memory_region+0xc1c/0x13d0 [ 79.670098][ T6550] ? kvm_delete_memslot+0x2b0/0x2b0 [ 79.675292][ T6550] ? __mutex_lock+0x21c/0x12f0 [ 79.680063][ T6550] ? mutex_lock_io_nested+0x1150/0x1150 [ 79.685734][ T6550] kvm_vm_ioctl+0x520/0x23d0 [ 79.690341][ T6550] ? tomoyo_path_number_perm+0x204/0x590 [ 79.695969][ T6550] ? lock_downgrade+0x6e0/0x6e0 [ 79.700820][ T6550] ? tomoyo_path_number_perm+0x441/0x590 [ 79.706450][ T6550] ? kfree+0xf3/0x550 [ 79.710437][ T6550] ? kvm_unregister_device_ops+0x90/0x90 [ 79.716089][ T6550] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 79.722345][ T6550] ? tomoyo_path_number_perm+0x24e/0x590 [ 79.727978][ T6550] ? tomoyo_execute_permission+0x4a0/0x4a0 [ 79.733974][ T6550] ? __sanitizer_cov_trace_switch+0x63/0xf0 [ 79.739873][ T6550] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 79.746152][ T6550] ? do_vfs_ioctl+0x132/0x15d0 [ 79.750928][ T6550] ? vfs_fileattr_set+0xbe0/0xbe0 [ 79.756119][ T6550] ? find_held_lock+0x2d/0x110 [ 79.760899][ T6550] ? btrfs_reset_sb_log_zones.cold+0x78/0xb6 [ 79.766898][ T6550] ? lock_downgrade+0x6e0/0x6e0 [ 79.771760][ T6550] ? lock_downgrade+0x6e0/0x6e0 [ 79.776628][ T6550] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 79.782965][ T6550] ? kvm_unregister_device_ops+0x90/0x90 [ 79.788620][ T6550] __x64_sys_ioctl+0x193/0x200 [ 79.793387][ T6550] do_syscall_64+0x35/0xb0 [ 79.797815][ T6550] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 79.803712][ T6550] RIP: 0033:0x7f74192b1029 [ 79.808123][ T6550] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 79.827734][ T6550] RSP: 002b:00007ffeaeb89728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 79.836154][ T6550] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f74192b1029 [ 79.844121][ T6550] RDX: 00000000200001c0 RSI: 000000004020ae46 RDI: 0000000000000004 [ 79.852099][ T6550] RBP: 00007f7419275010 R08: 0000000000000000 R09: 0000000000000000 [ 79.860081][ T6550] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f74192750a0 [ 79.868065][ T6550] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 79.876463][ T6550] Kernel Offset: disabled [ 79.880927][ T6550] Rebooting in 86400 seconds..