{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72179","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-09T03:40:39.910Z","datePublished":"2026-08-15T05:53:42.980Z","dateUpdated":"2026-08-17T05:09:41.910Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-17T05:09:41.910Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: cacheinfo: Fix node reference leak in populate_cache_leaves\n\nCurrently, the while loop drops the reference to prev in each iteration.\nIf the loop terminates early due to a break, the final of_node_put(np)\ncorrectly drops the reference to the current node.\n\nHowever, if the loop terminates naturally because np == NULL, calling\nof_node_put(np) is a no-op. This leaves the last valid node stored in\nprev without its reference dropped, resulting in a node reference leak.\n\nFix this by changing the final `of_node_put(np)` to `of_node_put(prev)`."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/riscv/kernel/cacheinfo.c"],"versions":[{"version":"94f9bf118f1e294b3f2092f8bde02860f5e3ea3f","lessThan":"2560c97f63bb99b26d9f19b23a4f66ea24c9dc14","status":"affected","versionType":"git"},{"version":"94f9bf118f1e294b3f2092f8bde02860f5e3ea3f","lessThan":"51afb7da697b698996351740b4f39fb05ce2afd4","status":"affected","versionType":"git"},{"version":"94f9bf118f1e294b3f2092f8bde02860f5e3ea3f","lessThan":"880ac50b0bfae06d7ab5f1843253adfb86aa173a","status":"affected","versionType":"git"},{"version":"94f9bf118f1e294b3f2092f8bde02860f5e3ea3f","lessThan":"f322955d9a1c344ed943752f05aacea7bc22e025","status":"affected","versionType":"git"},{"version":"94f9bf118f1e294b3f2092f8bde02860f5e3ea3f","lessThan":"36e4843fe39ea2f17f4de6d59fba26271916c184","status":"affected","versionType":"git"},{"version":"94f9bf118f1e294b3f2092f8bde02860f5e3ea3f","lessThan":"bf4a195f063b0a0805c1417f6aad1dd32ea48f0f","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/riscv/kernel/cacheinfo.c"],"versions":[{"version":"5.0","status":"affected"},{"version":"0","lessThan":"5.0","status":"unaffected","versionType":"semver"},{"version":"6.1.178","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.145","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.97","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.40","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2560c97f63bb99b26d9f19b23a4f66ea24c9dc14"},{"url":"https://git.kernel.org/stable/c/51afb7da697b698996351740b4f39fb05ce2afd4"},{"url":"https://git.kernel.org/stable/c/880ac50b0bfae06d7ab5f1843253adfb86aa173a"},{"url":"https://git.kernel.org/stable/c/f322955d9a1c344ed943752f05aacea7bc22e025"},{"url":"https://git.kernel.org/stable/c/36e4843fe39ea2f17f4de6d59fba26271916c184"},{"url":"https://git.kernel.org/stable/c/bf4a195f063b0a0805c1417f6aad1dd32ea48f0f"}],"title":"riscv: cacheinfo: Fix node reference leak in populate_cache_leaves","x_generator":{"engine":"bippy-1.2.0"}}}}