Tracker / CVE-2026-43171
CVE-2026-43171
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: EFI/CPER: don't dump the entire memory region The current logic at cper_print_fw_err() doesn't check if the error record length is big enough to handle offset. On a bad firmware, if the ofset is above the actual record, length -= offset will underflow, making it dump the entire memory. The end result can be: - the logic taking a lot of time dumping large regions of memory; - data disclosure due to the memory dumps; - an OOPS, if it tries to dump an unmapped memory region. Fix it by checking if the section length is too small before doing a hex dump. [ rjw: Subject tweaks ]
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 5.11 → 5.15.202 |
| linux | linux_kernel · 5.16 → 6.1.165 |
| linux | linux_kernel · 5.7 → 5.10.252 |
| linux | linux_kernel · 6.13 → 6.18.16 |
| linux | linux_kernel · 6.19 → 6.19.6 |
| linux | linux_kernel · 6.2 → 6.6.128 |
| linux | linux_kernel · 6.7 → 6.12.75 |
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.