Tracker / CVE-2023-52462
CVE-2023-52462
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: bpf: fix check for attempt to corrupt spilled pointer When register is spilled onto a stack as a 1/2/4-byte register, we set slot_type[BPF_REG_SIZE - 1] (plus potentially few more below it, depending on actual spill size). So to check if some stack slot has spilled register we need to consult slot_type[7], not slot_type[0]. To avoid the need to remember and double-check this in the future, just use is_spilled_reg() helper.
Affected products and versions
| linux | linux_kernel · … → 5.10.209 |
|---|---|
| linux | linux_kernel · 5.11.0 → 5.15.148 |
| linux | linux_kernel · 5.16.0 → 6.1.75 |
| linux | linux_kernel · 6.2.0 → 6.6.14 |
| linux | linux_kernel · 6.7.0 → 6.7.2 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.