[[0;32m OK [0m] Started Getty on tty2.
[[0;32m OK [0m] Started Serial Getty on ttyS0.
[[0;32m OK [0m] Started Getty on tty1.
[[0;32m OK [0m] Reached target Login Prompts.
[[0;32m OK [0m] Reached target Multi-User System.
[[0;32m OK [0m] Reached target Graphical Interface.
Starting Update UTMP about System Runlevel Changes...
[[0;32m OK [0m] Started Update UTMP about System Runlevel Changes.
Starting Load/Save RF Kill Switch Status...
[[0;32m OK [0m] Started Load/Save RF Kill Switch Status.
Debian GNU/Linux 9 syzkaller ttyS0
Warning: Permanently added '10.128.0.52' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [ 60.804201][ T6870] ================================================================================
[ 60.813649][ T6870] UBSAN: array-index-out-of-bounds in arch/x86/kernel/uprobes.c:263:56
[ 60.821916][ T6870] index 4 is out of range for type 'insn_byte_t [4]'
[ 60.830406][ T6870] CPU: 0 PID: 6870 Comm: syz-executor876 Not tainted 5.9.0-rc5-syzkaller #0
[ 60.839162][ T6870] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 60.849223][ T6870] Call Trace:
[ 60.852517][ T6870] dump_stack+0x198/0x1fd
[ 60.856843][ T6870] ubsan_epilogue+0xb/0x5a
[ 60.861248][ T6870] __ubsan_handle_out_of_bounds.cold+0x62/0x6c
[ 60.867406][ T6870] arch_uprobe_analyze_insn+0x8f4/0xa40
[ 60.872962][ T6870] ? default_abort_op+0x110/0x110
[ 60.877991][ T6870] ? memcpy+0x39/0x60
[ 60.881964][ T6870] install_breakpoint.isra.0+0x6c4/0x7c0
[ 60.887723][ T6870] uprobe_mmap+0x5ec/0x1080
[ 60.892216][ T6870] ? do_raw_spin_unlock+0x171/0x230
[ 60.897408][ T6870] ? uprobe_apply+0x150/0x150
[ 60.902093][ T6870] mmap_region+0x5cf/0x1780
[ 60.906591][ T6870] do_mmap+0xcf9/0x11d0
[ 60.910740][ T6870] vm_mmap_pgoff+0x195/0x200
[ 60.915322][ T6870] ? randomize_stack_top+0x100/0x100
[ 60.920599][ T6870] ksys_mmap_pgoff+0x444/0x580
[ 60.925355][ T6870] ? find_mergeable_anon_vma+0x240/0x240
[ 60.930977][ T6870] ? syscall_enter_from_user_mode+0x1d/0x60
[ 60.936866][ T6870] ? check_preemption_disabled+0x50/0x130
[ 60.942577][ T6870] ? syscall_enter_from_user_mode+0x1d/0x60
[ 60.948509][ T6870] do_syscall_64+0x2d/0x70
[ 60.953055][ T6870] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 60.958952][ T6870] RIP: 0033:0x440379
[ 60.962849][ T6870] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[ 60.982483][ T6870] RSP: 002b:00007ffc6ed13058 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
[ 60.990948][ T6870] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440379
[ 60.999027][ T6870] RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020007000
[ 61.007003][ T6870] RBP: 00000000006ca018 R08: 0000000000000003 R09: 0000000000000000
[ 61.014989][ T6870] R10: 0000000000000412 R11: 0000000000000246 R12: 0000000000401b80
[ 61.022952][ T6870] R13: 0000000000401c10 R14: 0000000000000000 R15: 0000000000000000
[ 61.031344][ T6870] ================================================================================
[ 61.040830][ T6870] Kernel panic - not syncing: panic_on_warn set ...
[ 61.047429][ T6870] CPU: 0 PID: 6870 Comm: syz-executor876 Not tainted 5.9.0-rc5-syzkaller #0
[ 61.056081][ T6870] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 61.066139][ T6870] Call Trace:
[ 61.069445][ T6870] dump_stack+0x198/0x1fd
[ 61.073910][ T6870] panic+0x382/0x7fb
[ 61.077820][ T6870] ? __warn_printk+0xf3/0xf3
[ 61.082424][ T6870] ? ubsan_epilogue+0x3e/0x5a
[ 61.087100][ T6870] ? ubsan_epilogue+0x35/0x5a
[ 61.091768][ T6870] ubsan_epilogue+0x54/0x5a
[ 61.096276][ T6870] __ubsan_handle_out_of_bounds.cold+0x62/0x6c
[ 61.102848][ T6870] arch_uprobe_analyze_insn+0x8f4/0xa40
[ 61.108394][ T6870] ? default_abort_op+0x110/0x110
[ 61.113426][ T6870] ? memcpy+0x39/0x60
[ 61.117421][ T6870] install_breakpoint.isra.0+0x6c4/0x7c0
[ 61.123056][ T6870] uprobe_mmap+0x5ec/0x1080
[ 61.127553][ T6870] ? do_raw_spin_unlock+0x171/0x230
[ 61.132790][ T6870] ? uprobe_apply+0x150/0x150
[ 61.137474][ T6870] mmap_region+0x5cf/0x1780
[ 61.141970][ T6870] do_mmap+0xcf9/0x11d0
[ 61.147509][ T6870] vm_mmap_pgoff+0x195/0x200
[ 61.152130][ T6870] ? randomize_stack_top+0x100/0x100
[ 61.157439][ T6870] ksys_mmap_pgoff+0x444/0x580
[ 61.162196][ T6870] ? find_mergeable_anon_vma+0x240/0x240
[ 61.167844][ T6870] ? syscall_enter_from_user_mode+0x1d/0x60
[ 61.173729][ T6870] ? check_preemption_disabled+0x50/0x130
[ 61.179455][ T6870] ? syscall_enter_from_user_mode+0x1d/0x60
[ 61.185367][ T6870] do_syscall_64+0x2d/0x70
[ 61.189777][ T6870] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 61.195688][ T6870] RIP: 0033:0x440379
[ 61.199574][ T6870] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[ 61.219185][ T6870] RSP: 002b:00007ffc6ed13058 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
[ 61.227616][ T6870] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440379
[ 61.235576][ T6870] RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020007000
[ 61.243549][ T6870] RBP: 00000000006ca018 R08: 0000000000000003 R09: 0000000000000000
[ 61.251529][ T6870] R10: 0000000000000412 R11: 0000000000000246 R12: 0000000000401b80
[ 61.259502][ T6870] R13: 0000000000401c10 R14: 0000000000000000 R15: 0000000000000000
[ 61.268720][ T6870] Kernel Offset: disabled
[ 61.273132][ T6870] Rebooting in 86400 seconds..