[ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ 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... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.220' (ECDSA) to the list of known hosts. syzkaller login: [ 66.729900][ T6901] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 67.038141][ T7028] ------------[ cut here ]------------ [ 67.043680][ T7028] WARNING: CPU: 0 PID: 7028 at fs/read_write.c:440 __kernel_read+0x80e/0xa10 [ 67.053105][ T7028] Modules linked in: [ 67.057034][ T7028] CPU: 0 PID: 7028 Comm: syz-executor458 Not tainted 5.9.0-rc5-next-20200921-syzkaller #0 [ 67.067464][ T7028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.077807][ T7028] RIP: 0010:__kernel_read+0x80e/0xa10 [ 67.083482][ T7028] Code: 8a e8 c6 97 12 02 31 ff 89 c3 89 c6 e8 2b ac b3 ff 85 db 0f 85 6e 3b 55 06 49 c7 c5 ea ff ff ff e9 bd fd ff ff e8 b2 af b3 ff <0f> 0b 49 c7 c5 ea ff ff ff e9 aa fd ff ff e8 9f af b3 ff 48 89 ea [ 67.103188][ T7028] RSP: 0018:ffffc90006027b38 EFLAGS: 00010293 [ 67.109364][ T7028] RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff81c1715b [ 67.117420][ T7028] RDX: ffff888091eba480 RSI: ffffffff81c1787e RDI: 0000000000000005 [ 67.125454][ T7028] RBP: 000000000008801c R08: 0000000000000001 R09: ffff888091ebad88 [ 67.133497][ T7028] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a16710c0 [ 67.141575][ T7028] R13: 0000000000000001 R14: ffffc90006027d08 R15: ffff8880a1671144 [ 67.149693][ T7028] FS: 00007efcd60f1700(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 [ 67.158710][ T7028] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.165353][ T7028] CR2: 0000000020000000 CR3: 00000000a2dc5000 CR4: 00000000001506f0 [ 67.173451][ T7028] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.181506][ T7028] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.189644][ T7028] Call Trace: [ 67.193022][ T7028] ? fsnotify+0x1040/0x1040 [ 67.197635][ T7028] ? __do_sys_copy_file_range+0x410/0x410 [ 67.203443][ T7028] ? security_file_permission+0x248/0x560 [ 67.209259][ T7028] kernel_read+0x52/0x70 [ 67.213517][ T7028] kernel_read_file+0x2e5/0x620 [ 67.218505][ T7028] ? free_bprm+0x2e0/0x2e0 [ 67.222942][ T7028] kernel_read_file_from_fd+0x56/0xa0 [ 67.228390][ T7028] __do_sys_finit_module+0xe6/0x190 [ 67.233608][ T7028] ? __do_sys_init_module+0x1f0/0x1f0 [ 67.239084][ T7028] ? lock_acquire+0x1f2/0xaa0 [ 67.243799][ T7028] ? lock_is_held_type+0xbb/0xf0 [ 67.248806][ T7028] ? check_preemption_disabled+0x50/0x130 [ 67.254631][ T7028] ? syscall_enter_from_user_mode+0x1d/0x60 [ 67.260774][ T7028] do_syscall_64+0x2d/0x70 [ 67.265197][ T7028] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.271188][ T7028] RIP: 0033:0x44a639 [ 67.275180][ T7028] Code: e8 bc b4 02 00 48 83 c4 18 c3 0f 1f 80 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 0f 83 4b cc fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.295162][ T7028] RSP: 002b:00007efcd60f0db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 67.303709][ T7028] RAX: ffffffffffffffda RBX: 00000000006dbc68 RCX: 000000000044a639 [ 67.311835][ T7028] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 67.319912][ T7028] RBP: 00000000006dbc60 R08: 00007efcd60f1700 R09: 0000000000000000 [ 67.327964][ T7028] R10: 00007efcd60f1700 R11: 0000000000000246 R12: 00000000006dbc6c [ 67.335952][ T7028] R13: 00007ffd3d8928ef R14: 00007efcd60f19c0 R15: 0000000000000001 [ 67.344277][ T7028] Kernel panic - not syncing: panic_on_warn set ... [ 67.350960][ T7028] CPU: 0 PID: 7028 Comm: syz-executor458 Not tainted 5.9.0-rc5-next-20200921-syzkaller #0 [ 67.360837][ T7028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.370881][ T7028] Call Trace: [ 67.374165][ T7028] dump_stack+0x198/0x1fb [ 67.378481][ T7028] panic+0x382/0x7fb [ 67.382357][ T7028] ? __warn_printk+0xf3/0xf3 [ 67.386931][ T7028] ? __warn.cold+0x1d/0xbb [ 67.391352][ T7028] ? __warn.cold+0x14/0xbb [ 67.395758][ T7028] ? __kernel_read+0x80e/0xa10 [ 67.400526][ T7028] __warn.cold+0x38/0xbb [ 67.404750][ T7028] ? __kernel_read+0x80e/0xa10 [ 67.409495][ T7028] report_bug+0x1bd/0x210 [ 67.413812][ T7028] handle_bug+0x38/0x90 [ 67.417951][ T7028] exc_invalid_op+0x14/0x40 [ 67.422440][ T7028] asm_exc_invalid_op+0x12/0x20 [ 67.427336][ T7028] RIP: 0010:__kernel_read+0x80e/0xa10 [ 67.432730][ T7028] Code: 8a e8 c6 97 12 02 31 ff 89 c3 89 c6 e8 2b ac b3 ff 85 db 0f 85 6e 3b 55 06 49 c7 c5 ea ff ff ff e9 bd fd ff ff e8 b2 af b3 ff <0f> 0b 49 c7 c5 ea ff ff ff e9 aa fd ff ff e8 9f af b3 ff 48 89 ea [ 67.452326][ T7028] RSP: 0018:ffffc90006027b38 EFLAGS: 00010293 [ 67.458533][ T7028] RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff81c1715b [ 67.466495][ T7028] RDX: ffff888091eba480 RSI: ffffffff81c1787e RDI: 0000000000000005 [ 67.474586][ T7028] RBP: 000000000008801c R08: 0000000000000001 R09: ffff888091ebad88 [ 67.482552][ T7028] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a16710c0 [ 67.490523][ T7028] R13: 0000000000000001 R14: ffffc90006027d08 R15: ffff8880a1671144 [ 67.498500][ T7028] ? __kernel_read+0xeb/0xa10 [ 67.503160][ T7028] ? __kernel_read+0x80e/0xa10 [ 67.507957][ T7028] ? __kernel_read+0x80e/0xa10 [ 67.512719][ T7028] ? fsnotify+0x1040/0x1040 [ 67.517206][ T7028] ? __do_sys_copy_file_range+0x410/0x410 [ 67.524492][ T7028] ? security_file_permission+0x248/0x560 [ 67.530199][ T7028] kernel_read+0x52/0x70 [ 67.534430][ T7028] kernel_read_file+0x2e5/0x620 [ 67.539709][ T7028] ? free_bprm+0x2e0/0x2e0 [ 67.544111][ T7028] kernel_read_file_from_fd+0x56/0xa0 [ 67.549473][ T7028] __do_sys_finit_module+0xe6/0x190 [ 67.554658][ T7028] ? __do_sys_init_module+0x1f0/0x1f0 [ 67.560019][ T7028] ? lock_acquire+0x1f2/0xaa0 [ 67.564700][ T7028] ? lock_is_held_type+0xbb/0xf0 [ 67.569622][ T7028] ? check_preemption_disabled+0x50/0x130 [ 67.575339][ T7028] ? syscall_enter_from_user_mode+0x1d/0x60 [ 67.581218][ T7028] do_syscall_64+0x2d/0x70 [ 67.585621][ T7028] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.591494][ T7028] RIP: 0033:0x44a639 [ 67.595387][ T7028] Code: e8 bc b4 02 00 48 83 c4 18 c3 0f 1f 80 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 0f 83 4b cc fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.615138][ T7028] RSP: 002b:00007efcd60f0db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 67.623541][ T7028] RAX: ffffffffffffffda RBX: 00000000006dbc68 RCX: 000000000044a639 [ 67.631622][ T7028] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 67.639588][ T7028] RBP: 00000000006dbc60 R08: 00007efcd60f1700 R09: 0000000000000000 [ 67.647548][ T7028] R10: 00007efcd60f1700 R11: 0000000000000246 R12: 00000000006dbc6c [ 67.655507][ T7028] R13: 00007ffd3d8928ef R14: 00007efcd60f19c0 R15: 0000000000000001 [ 67.664964][ T7028] Kernel Offset: disabled [ 67.669383][ T7028] Rebooting in 86400 seconds..