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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-06 16:43:19 +0000 |
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| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-06 16:43:19 +0000 |
| commit | 238ec2b7cc1557d6f34c33cc482e4d0cd3e266dd (patch) | |
| tree | cd8a1b75ba7b3543eb7fe6857f408e7be4d9fd0b /results/classifier/deepseek-r1:32b/reasoning/instruction/1904210 | |
| parent | 96049c939b1916d80532630d63c14e04d5244f1d (diff) | |
| download | qemu-analysis-238ec2b7cc1557d6f34c33cc482e4d0cd3e266dd.tar.gz qemu-analysis-238ec2b7cc1557d6f34c33cc482e4d0cd3e266dd.zip | |
add results
Diffstat (limited to 'results/classifier/deepseek-r1:32b/reasoning/instruction/1904210')
| -rw-r--r-- | results/classifier/deepseek-r1:32b/reasoning/instruction/1904210 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/results/classifier/deepseek-r1:32b/reasoning/instruction/1904210 b/results/classifier/deepseek-r1:32b/reasoning/instruction/1904210 new file mode 100644 index 000000000..13ae53fd9 --- /dev/null +++ b/results/classifier/deepseek-r1:32b/reasoning/instruction/1904210 @@ -0,0 +1,15 @@ +<think> +Okay, I'm trying to figure out what category this bug falls into. The user provided some logs from two different QEMU versions and described an issue where their binary crashes with SIGILL despite having a registered signal handler. + +First, looking at the logs, in version 2.5.0, after reading the input 'flag{', it writes "wrong!" and then calls _llseek with some invalid parameters, leading to an exit. But in version 2.11.1, after the same input, QEMU throws a SIGILL signal which isn't caught, causing a core dump. + +The problem seems related to how QEMU handles illegal instructions. The binary triggers an illegal instruction at address 0x10a68. In older QEMU (2.5.0), it doesn't reach that point because the program exits early. But in 2.11.1, the signal isn't being caught properly. + +The user mentioned that the binary has a SIGILL handler registered, so when the illegal instruction occurs, it should call this handler instead of crashing. However, QEMU is not passing this correctly, leading to an uncaught signal. + +This sounds like an issue with how signals are handled in the emulator, specifically the SIGILL signal which is related to instructions that the CPU can't execute. So the bug is about handling an instruction-related error, making it fall under the 'instruction' category. +</think> + +The bug report describes a situation where the QEMU emulator incorrectly handles the SIGILL signal, leading to a crash despite the program having registered a handler for this signal. The issue arises during the execution of an illegal instruction in the binary, which should have been caught by the registered handler but instead causes QEMU to terminate. + +**Answer:** instruction \ No newline at end of file |