Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.50' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 68.472173][ T8516] ================================================================================ [ 68.482073][ T8516] UBSAN: array-index-out-of-bounds in arch/x86/kernel/uprobes.c:263:56 [ 68.490309][ T8516] index 4 is out of range for type 'insn_byte_t [4]' [ 68.498257][ T8516] CPU: 1 PID: 8516 Comm: syz-executor779 Not tainted 5.10.0-rc6-next-20201201-syzkaller #0 [ 68.508368][ T8516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.518405][ T8516] Call Trace: [ 68.521694][ T8516] dump_stack+0x107/0x163 [ 68.526005][ T8516] ubsan_epilogue+0xb/0x5a [ 68.530450][ T8516] __ubsan_handle_out_of_bounds.cold+0x62/0x6c [ 68.536590][ T8516] arch_uprobe_analyze_insn+0x8f3/0xa40 [ 68.542120][ T8516] ? push_emulate_op+0x270/0x270 [ 68.547060][ T8516] ? memcpy+0x39/0x60 [ 68.551041][ T8516] install_breakpoint.isra.0+0x6c4/0x7c0 [ 68.556662][ T8516] uprobe_mmap+0x5ec/0x1080 [ 68.561148][ T8516] ? do_raw_spin_unlock+0x171/0x230 [ 68.566339][ T8516] ? uprobe_apply+0x150/0x150 [ 68.570995][ T8516] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.577219][ T8516] mmap_region+0x56c/0x1790 [ 68.581712][ T8516] do_mmap+0xcff/0x11d0 [ 68.585852][ T8516] vm_mmap_pgoff+0x1b7/0x290 [ 68.590425][ T8516] ? randomize_stack_top+0x100/0x100 [ 68.595692][ T8516] ? __fget_files+0x288/0x3d0 [ 68.600364][ T8516] ksys_mmap_pgoff+0x444/0x580 [ 68.605109][ T8516] ? find_mergeable_anon_vma+0x240/0x240 [ 68.610728][ T8516] ? syscall_enter_from_user_mode+0x1d/0x50 [ 68.616610][ T8516] do_syscall_64+0x2d/0x70 [ 68.621007][ T8516] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 68.626887][ T8516] RIP: 0033:0x440379 [ 68.630939][ T8516] 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 [ 68.651224][ T8516] RSP: 002b:00007fff0bdb02b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 68.659621][ T8516] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440379 [ 68.667574][ T8516] RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020007000 [ 68.675614][ T8516] RBP: 00000000006ca018 R08: 0000000000000003 R09: 0000000000000000 [ 68.683563][ T8516] R10: 0000000000000412 R11: 0000000000000246 R12: 0000000000401b80 [ 68.691556][ T8516] R13: 0000000000401c10 R14: 0000000000000000 R15: 0000000000000000 [ 68.701421][ T8516] ================================================================================ [ 68.710716][ T8516] Kernel panic - not syncing: panic_on_warn set ... [ 68.717307][ T8516] CPU: 1 PID: 8516 Comm: syz-executor779 Not tainted 5.10.0-rc6-next-20201201-syzkaller #0 [ 68.727283][ T8516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.737332][ T8516] Call Trace: [ 68.740614][ T8516] dump_stack+0x107/0x163 [ 68.744933][ T8516] panic+0x306/0x73d [ 68.748830][ T8516] ? __warn_printk+0xf3/0xf3 [ 68.753415][ T8516] ? ubsan_epilogue+0x3e/0x5a [ 68.758080][ T8516] ubsan_epilogue+0x54/0x5a [ 68.762568][ T8516] __ubsan_handle_out_of_bounds.cold+0x62/0x6c [ 68.768723][ T8516] arch_uprobe_analyze_insn+0x8f3/0xa40 [ 68.774257][ T8516] ? push_emulate_op+0x270/0x270 [ 68.779200][ T8516] ? memcpy+0x39/0x60 [ 68.783191][ T8516] install_breakpoint.isra.0+0x6c4/0x7c0 [ 68.788821][ T8516] uprobe_mmap+0x5ec/0x1080 [ 68.793324][ T8516] ? do_raw_spin_unlock+0x171/0x230 [ 68.798766][ T8516] ? uprobe_apply+0x150/0x150 [ 68.803431][ T8516] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.809660][ T8516] mmap_region+0x56c/0x1790 [ 68.814158][ T8516] do_mmap+0xcff/0x11d0 [ 68.818303][ T8516] vm_mmap_pgoff+0x1b7/0x290 [ 68.822896][ T8516] ? randomize_stack_top+0x100/0x100 [ 68.828166][ T8516] ? __fget_files+0x288/0x3d0 [ 68.832833][ T8516] ksys_mmap_pgoff+0x444/0x580 [ 68.837581][ T8516] ? find_mergeable_anon_vma+0x240/0x240 [ 68.843200][ T8516] ? syscall_enter_from_user_mode+0x1d/0x50 [ 68.849083][ T8516] do_syscall_64+0x2d/0x70 [ 68.853485][ T8516] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 68.859360][ T8516] RIP: 0033:0x440379 [ 68.863242][ T8516] 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 [ 68.882834][ T8516] RSP: 002b:00007fff0bdb02b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 68.891236][ T8516] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440379 [ 68.899189][ T8516] RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020007000 [ 68.907143][ T8516] RBP: 00000000006ca018 R08: 0000000000000003 R09: 0000000000000000 [ 68.915108][ T8516] R10: 0000000000000412 R11: 0000000000000246 R12: 0000000000401b80 [ 68.923085][ T8516] R13: 0000000000401c10 R14: 0000000000000000 R15: 0000000000000000 [ 68.932068][ T8516] Kernel Offset: disabled [ 68.936468][ T8516] Rebooting in 86400 seconds..