diff options
Diffstat (limited to 'results/classifier/qwen3:32b/reasoning/syscall/1785203')
| -rw-r--r-- | results/classifier/qwen3:32b/reasoning/syscall/1785203 | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1785203 b/results/classifier/qwen3:32b/reasoning/syscall/1785203 new file mode 100644 index 000000000..584cdb578 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1785203 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user provided a bug report about QEMU crashing when mincore() is called with an invalid pointer. The error message mentions an assertion failure in the page_check_range function. The testcase uses mincore with a pointer that's likely out of the valid address space. + +Looking at the backtrace, the crash happens in page_check_range, which checks if the start address is within a certain limit (L1_MAP_ADDR_SPACE_BITS). The invalid pointer here is 0x00000010000000000, which is 1 << 40 (since 0x10000000000 is 1 followed by 40 zeros in hex). The assertion is checking if start is less than (1 << L1_MAP_ADDR_SPACE_BITS). If L1_MAP_ADDR_SPACE_BITS is smaller than 40, then this start address would be too big, causing the assertion to fail. + +The issue arises because the mincore syscall is passing an invalid address, which QEMU's user-mode emulation needs to handle. The problem isn't with the instruction itself but with how the syscall is processed. The crash occurs during the handling of the mincore syscall when QEMU checks the address range. Since the bug is triggered by a syscall with invalid parameters and the error is in the syscall handling code, this should be categorized under 'syscall'. +</think> + +syscall \ No newline at end of file |