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Diffstat (limited to 'results/classifier/zero-shot-user-mode/instruction/1773743')
| -rw-r--r-- | results/classifier/zero-shot-user-mode/instruction/1773743 | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/results/classifier/zero-shot-user-mode/instruction/1773743 b/results/classifier/zero-shot-user-mode/instruction/1773743 new file mode 100644 index 000000000..5055b19e7 --- /dev/null +++ b/results/classifier/zero-shot-user-mode/instruction/1773743 @@ -0,0 +1,27 @@ +instruction: 0.521 +runtime: 0.250 +syscall: 0.229 + + + +qemu-user -g xxx -E LD_PROFILE=xxx segfault + +Here is two simple steps to reproduce the bug: + +$ qemu-x86_64 -E LD_PROFILE=libc.so.6 -E LD_PROFILE_OUTPUT=. -g 12345 -L / /bin/ls + +(libc.so and /bin/ls might change on your system, in this case we just need a binary with a profilable needed library) + +In a other window launch: + +$ gdb +(gdb) target remote :12345 +(gdb) c + +At this point qemu will segfault. + +It seems this problem is appends when sigprof passed to gdb. +One way I have found to bypass this: +patch gdbstub.c gdb_handlesig and ignore sig if +sig == TARGET_SIGPROF +(which means now I can't catch sigprof on gdb anymore) \ No newline at end of file |