CVE-2026-72179
In the Linux kernel, the following vulnerability has been resolved: riscv: cacheinfo: Fix node reference leak in populate_cache_leaves Currently, the while loop drops the reference to prev in each iteration.
Does this matter?
Not yet scored. NVD analysis is pending; check back once CVSS and EPSS values are published.
Description
In the Linux kernel, the following vulnerability has been resolved: riscv: cacheinfo: Fix node reference leak in populate_cache_leaves Currently, the while loop drops the reference to prev in each iteration. If the loop terminates early due to a break, the final of_node_put(np) correctly drops the reference to the current node. However, if the loop terminates naturally because np == NULL, calling of_node_put(np) is a no-op. This leaves the last valid node stored in prev without its reference dropped, resulting in a node reference leak. Fix this by changing the final `of_node_put(np)` to `of_node_put(prev)`.
- CVSS
- Not yet scored
- EPSS
- 0.21% probability · 11th percentile
- CISA KEV
- Not listed
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/2560c97f63bb99b26d9f19b23a4f66ea24c9dc14
- https://git.kernel.org/stable/c/36e4843fe39ea2f17f4de6d59fba26271916c184
- https://git.kernel.org/stable/c/51afb7da697b698996351740b4f39fb05ce2afd4
- https://git.kernel.org/stable/c/880ac50b0bfae06d7ab5f1843253adfb86aa173a
- https://git.kernel.org/stable/c/bf4a195f063b0a0805c1417f6aad1dd32ea48f0f
- https://git.kernel.org/stable/c/f322955d9a1c344ed943752f05aacea7bc22e025
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.