diff options
Diffstat (limited to 'results/classifier/mode-deepseek-r1:32b/reasoning/user/1726394')
| -rw-r--r-- | results/classifier/mode-deepseek-r1:32b/reasoning/user/1726394 | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/results/classifier/mode-deepseek-r1:32b/reasoning/user/1726394 b/results/classifier/mode-deepseek-r1:32b/reasoning/user/1726394 new file mode 100644 index 00000000..5c361e52 --- /dev/null +++ b/results/classifier/mode-deepseek-r1:32b/reasoning/user/1726394 @@ -0,0 +1,17 @@ +<think> +Okay, I need to figure out whether this bug report about QEMU is related to user-mode or system-mode issues. The report mentions that when using prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, address), qemu-user passes it through unmodified but the third argument points to a BPF filter which causes an EFAULT error. The issue arises because the filter is architecture-specific and can't be easily rewritten, so returning an error like EINVAL might be the safest approach. + +First, I should understand what prctl does. PR_SET_SECCOMP sets up seccomp filters for a process, which is used to restrict system calls. SECCOMP_MODE_FILTER means using a BPF program to filter syscalls. The third argument is a pointer to this BPF program. + +QEMU has user-mode emulation, where it runs untrusted code in a sandboxed environment. If qemu-user isn't handling the seccomp setup correctly, that's within its own process space and doesn't involve higher privileges or system-level operations beyond what QEMU itself does. + +The problem here is about how QEMU handles system calls made by the emulated user-space programs. Since QEMU is a user-mode emulator, it deals with setting up environments for these processes without needing kernel-level privileges. The error EFAULT occurs because the BPF filter's address isn't accessible or valid in this context. + +The report suggests that since the filter is architecture-specific and can't be rewritten, returning an error like EINVAL would prevent issues. This approach keeps QEMU from crashing but might mean some features aren't available when seccomp isn't supported, which makes sense for a user-mode tool to handle gracefully. + +Considering system-mode issues usually involve higher privileges, device management, or kernel interactions. Here, it's more about how QEMU handles its own process and the emulated environment without needing deeper system access beyond standard user processes. + +So, this seems like a user-mode issue because it's about how QEMU manages its own sandboxed execution and handles system calls within that context. +</think> + +user \ No newline at end of file |