[ 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... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.61' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 61.951343][ T6842] ================================================================== [ 61.959568][ T6842] BUG: KASAN: wild-memory-access in ip_setsockopt+0x46c/0x3c10 [ 61.967105][ T6842] Read of size 1 at addr 00000000ffffffff by task syz-executor396/6842 [ 61.975331][ T6842] [ 61.977658][ T6842] CPU: 1 PID: 6842 Comm: syz-executor396 Not tainted 5.8.0-syzkaller #0 [ 61.985967][ T6842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.996188][ T6842] Call Trace: [ 61.999463][ T6842] dump_stack+0x18f/0x20d [ 62.003781][ T6842] ? ip_setsockopt+0x46c/0x3c10 [ 62.008621][ T6842] ? ip_setsockopt+0x46c/0x3c10 [ 62.013463][ T6842] kasan_report.cold+0x5/0x37 [ 62.018147][ T6842] ? ip_setsockopt+0x46c/0x3c10 [ 62.022986][ T6842] check_memory_region+0x13d/0x180 [ 62.028087][ T6842] memcpy+0x20/0x60 [ 62.031878][ T6842] ip_setsockopt+0x46c/0x3c10 [ 62.036534][ T6842] ? ip_ra_control+0x560/0x560 [ 62.041290][ T6842] ? aa_sk_perm+0x316/0xaa0 [ 62.045773][ T6842] ? lock_acquire+0x1f1/0xad0 [ 62.050434][ T6842] ? __get_unused_fd_flags+0x60/0x60 [ 62.055700][ T6842] ? aa_af_perm+0x230/0x230 [ 62.060195][ T6842] ? __fd_install+0x1b4/0x600 [ 62.064856][ T6842] ? sock_common_recvmsg+0x1a0/0x1a0 [ 62.070128][ T6842] raw_setsockopt+0x205/0x250 [ 62.074792][ T6842] __sys_setsockopt+0x2ad/0x6d0 [ 62.079627][ T6842] ? __ia32_sys_recv+0x100/0x100 [ 62.084557][ T6842] ? __fd_install+0x1e6/0x600 [ 62.089236][ T6842] ? syscall_enter_from_user_mode+0x20/0x290 [ 62.095196][ T6842] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 62.101158][ T6842] __ia32_sys_setsockopt+0xb9/0x150 [ 62.106334][ T6842] ? syscall_enter_from_user_mode+0x20/0x290 [ 62.112295][ T6842] __do_fast_syscall_32+0x57/0x80 [ 62.117307][ T6842] do_fast_syscall_32+0x2f/0x70 [ 62.122330][ T6842] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 62.128645][ T6842] RIP: 0023:0xf7f90569 [ 62.132706][ T6842] Code: 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 62.152322][ T6842] RSP: 002b:00000000ffeb45ec EFLAGS: 00000296 ORIG_RAX: 000000000000016e [ 62.160752][ T6842] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 62.168726][ T6842] RDX: 0000000000000008 RSI: 00000000ffffffff RDI: 0000000000000001 [ 62.176702][ T6842] RBP: 0000000000000012 R08: 0000000000000000 R09: 0000000000000000 [ 62.184665][ T6842] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 62.192632][ T6842] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 62.200675][ T6842] ================================================================== [ 62.208718][ T6842] Disabling lock debugging due to kernel taint [ 62.215218][ T6842] Kernel panic - not syncing: panic_on_warn set ... [ 62.221817][ T6842] CPU: 1 PID: 6842 Comm: syz-executor396 Tainted: G B 5.8.0-syzkaller #0 [ 62.231521][ T6842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.241563][ T6842] Call Trace: [ 62.244829][ T6842] dump_stack+0x18f/0x20d [ 62.249136][ T6842] ? ip_setsockopt+0x420/0x3c10 [ 62.253961][ T6842] panic+0x2e3/0x75c [ 62.257842][ T6842] ? __warn_printk+0xf3/0xf3 [ 62.262451][ T6842] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 62.268595][ T6842] ? trace_hardirqs_on+0x55/0x220 [ 62.273599][ T6842] ? ip_setsockopt+0x46c/0x3c10 [ 62.278443][ T6842] ? ip_setsockopt+0x46c/0x3c10 [ 62.283279][ T6842] end_report+0x4d/0x53 [ 62.287430][ T6842] kasan_report.cold+0xd/0x37 [ 62.292093][ T6842] ? ip_setsockopt+0x46c/0x3c10 [ 62.297014][ T6842] check_memory_region+0x13d/0x180 [ 62.302304][ T6842] memcpy+0x20/0x60 [ 62.306092][ T6842] ip_setsockopt+0x46c/0x3c10 [ 62.310765][ T6842] ? ip_ra_control+0x560/0x560 [ 62.315603][ T6842] ? aa_sk_perm+0x316/0xaa0 [ 62.320094][ T6842] ? lock_acquire+0x1f1/0xad0 [ 62.324862][ T6842] ? __get_unused_fd_flags+0x60/0x60 [ 62.330142][ T6842] ? aa_af_perm+0x230/0x230 [ 62.334626][ T6842] ? __fd_install+0x1b4/0x600 [ 62.339281][ T6842] ? sock_common_recvmsg+0x1a0/0x1a0 [ 62.344542][ T6842] raw_setsockopt+0x205/0x250 [ 62.349227][ T6842] __sys_setsockopt+0x2ad/0x6d0 [ 62.354056][ T6842] ? __ia32_sys_recv+0x100/0x100 [ 62.358981][ T6842] ? __fd_install+0x1e6/0x600 [ 62.363721][ T6842] ? syscall_enter_from_user_mode+0x20/0x290 [ 62.369688][ T6842] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 62.375644][ T6842] __ia32_sys_setsockopt+0xb9/0x150 [ 62.380826][ T6842] ? syscall_enter_from_user_mode+0x20/0x290 [ 62.386779][ T6842] __do_fast_syscall_32+0x57/0x80 [ 62.391797][ T6842] do_fast_syscall_32+0x2f/0x70 [ 62.396630][ T6842] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 62.402940][ T6842] RIP: 0023:0xf7f90569 [ 62.406994][ T6842] Code: 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 62.426691][ T6842] RSP: 002b:00000000ffeb45ec EFLAGS: 00000296 ORIG_RAX: 000000000000016e [ 62.435476][ T6842] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 62.443429][ T6842] RDX: 0000000000000008 RSI: 00000000ffffffff RDI: 0000000000000001 [ 62.451387][ T6842] RBP: 0000000000000012 R08: 0000000000000000 R09: 0000000000000000 [ 62.459339][ T6842] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 62.467292][ T6842] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 62.476282][ T6842] Kernel Offset: disabled [ 62.480614][ T6842] Rebooting in 86400 seconds..