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UBSAN: array-index-out-of-bounds in arch/x86/kernel/uprobes.c:263:36
index 4 is out of range for type 'insn_byte_t [4]'
CPU: 1 PID: 10042 Comm: syz-executor.3 Not tainted 5.10.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x137/0x1be lib/dump_stack.c:118
 ubsan_epilogue lib/ubsan.c:148 [inline]
 __ubsan_handle_out_of_bounds+0xdb/0x130 lib/ubsan.c:356
 is_prefix_bad arch/x86/kernel/uprobes.c:263 [inline]
 uprobe_init_insn arch/x86/kernel/uprobes.c:286 [inline]
 arch_uprobe_analyze_insn+0x1e7/0x12c0 arch/x86/kernel/uprobes.c:856
 prepare_uprobe kernel/events/uprobes.c:860 [inline]
 install_breakpoint+0x3f1/0x450 kernel/events/uprobes.c:903
 register_for_each_vma+0x9f3/0xbf0 kernel/events/uprobes.c:1071
 uprobe_apply+0xaa/0xf0 kernel/events/uprobes.c:1231
 uprobe_perf_open kernel/trace/trace_uprobe.c:1311 [inline]
 trace_uprobe_register+0x55f/0x670 kernel/trace/trace_uprobe.c:1463
 perf_trace_event_open kernel/trace/trace_event_perf.c:186 [inline]
 perf_trace_event_init+0x168/0x950 kernel/trace/trace_event_perf.c:208
 perf_uprobe_init+0x138/0x1a0 kernel/trace/trace_event_perf.c:336
 perf_uprobe_event_init+0xfe/0x180 kernel/events/core.c:9602
 perf_try_init_event+0x122/0x3a0 kernel/events/core.c:10919
 perf_init_event kernel/events/core.c:10971 [inline]
 perf_event_alloc+0xd91/0x2970 kernel/events/core.c:11249
 __do_sys_perf_event_open kernel/events/core.c:11744 [inline]
 __se_sys_perf_event_open+0x6ef/0x3fd0 kernel/events/core.c:11618
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45deb9
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fdcfaf9fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 0000000000024e40 RCX: 000000000045deb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080
RBP: 000000000119c018 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000119bfd4
R13: 00007ffd4d03184f R14: 00007fdcfafa09c0 R15: 000000000119bfd4
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