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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-72179

riscv: cacheinfo: Fix node reference leak in populate_cache_leaves

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Status
Published
Published
Updated
Assigning organization
Linux

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)`.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 94f9bf118f1e294b3f2092f8bde02860f5e3ea3f to < 2560c97f63bb99b26d9f19b23a4f66ea24c9dc14affected
  • 94f9bf118f1e294b3f2092f8bde02860f5e3ea3f to < 51afb7da697b698996351740b4f39fb05ce2afd4affected
  • 94f9bf118f1e294b3f2092f8bde02860f5e3ea3f to < 880ac50b0bfae06d7ab5f1843253adfb86aa173aaffected
  • 94f9bf118f1e294b3f2092f8bde02860f5e3ea3f to < f322955d9a1c344ed943752f05aacea7bc22e025affected
  • 94f9bf118f1e294b3f2092f8bde02860f5e3ea3f to < 36e4843fe39ea2f17f4de6d59fba26271916c184affected
  • 94f9bf118f1e294b3f2092f8bde02860f5e3ea3f to < bf4a195f063b0a0805c1417f6aad1dd32ea48f0faffected

Linux Linux

Default version status: affected

  • 5.0affected
  • 0 to < 5.0unaffected
  • 6.1.178 to ≤ 6.1.*unaffected
  • 6.6.145 to ≤ 6.6.*unaffected
  • 6.12.97 to ≤ 6.12.*unaffected
  • 6.18.40 to ≤ 6.18.*unaffected
  • 7.1.5 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References