{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-23155","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-01-11T14:28:41.514Z","datePublished":"2025-05-01T12:55:41.607Z","dateUpdated":"2026-05-11T21:14:00.995Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:14:00.995Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: stmmac: Fix accessing freed irq affinity_hint\n\nIn stmmac_request_irq_multi_msi(), a pointer to the stack variable\ncpu_mask is passed to irq_set_affinity_hint(). This value is stored in\nirq_desc->affinity_hint, but once stmmac_request_irq_multi_msi()\nreturns, the pointer becomes dangling.\n\nThe affinity_hint is exposed via procfs with S_IRUGO permissions,\nallowing any unprivileged process to read it. Accessing this stale\npointer can lead to:\n\n- a kernel oops or panic if the referenced memory has been released and\n  unmapped, or\n- leakage of kernel data into userspace if the memory is re-used for\n  other purposes.\n\nAll platforms that use stmmac with PCI MSI (Intel, Loongson, etc) are\naffected."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/stmicro/stmmac/stmmac_main.c"],"versions":[{"version":"8deec94c6040bb4a767f6e9456a0a44c7f2e713e","lessThan":"2fbf67ddb8a0d0efc00d2df496a9843ec318d48b","status":"affected","versionType":"git"},{"version":"8deec94c6040bb4a767f6e9456a0a44c7f2e713e","lessThan":"960dab23f6d405740c537d095f90a4ee9ddd9285","status":"affected","versionType":"git"},{"version":"8deec94c6040bb4a767f6e9456a0a44c7f2e713e","lessThan":"442312c2a90d60c7a5197246583fa91d9e579985","status":"affected","versionType":"git"},{"version":"8deec94c6040bb4a767f6e9456a0a44c7f2e713e","lessThan":"e148266e104fce396ad624079a6812ac3a9982ef","status":"affected","versionType":"git"},{"version":"8deec94c6040bb4a767f6e9456a0a44c7f2e713e","lessThan":"9e51a6a44e2c4de780a26e8fe110d708e806a8cd","status":"affected","versionType":"git"},{"version":"8deec94c6040bb4a767f6e9456a0a44c7f2e713e","lessThan":"c60d101a226f18e9a8f01bb4c6ca2b47dfcb15ef","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/stmicro/stmmac/stmmac_main.c"],"versions":[{"version":"5.13","status":"affected"},{"version":"0","lessThan":"5.13","status":"unaffected","versionType":"semver"},{"version":"6.1.164","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.117","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.36","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.13.12","lessThanOrEqual":"6.13.*","status":"unaffected","versionType":"semver"},{"version":"6.14.3","lessThanOrEqual":"6.14.*","status":"unaffected","versionType":"semver"},{"version":"6.15","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":"5.13","versionEndExcluding":"6.1.164"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.6.117"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.12.36"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.13.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.14.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.15"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2fbf67ddb8a0d0efc00d2df496a9843ec318d48b"},{"url":"https://git.kernel.org/stable/c/960dab23f6d405740c537d095f90a4ee9ddd9285"},{"url":"https://git.kernel.org/stable/c/442312c2a90d60c7a5197246583fa91d9e579985"},{"url":"https://git.kernel.org/stable/c/e148266e104fce396ad624079a6812ac3a9982ef"},{"url":"https://git.kernel.org/stable/c/9e51a6a44e2c4de780a26e8fe110d708e806a8cd"},{"url":"https://git.kernel.org/stable/c/c60d101a226f18e9a8f01bb4c6ca2b47dfcb15ef"}],"title":"net: stmmac: Fix accessing freed irq affinity_hint","x_generator":{"engine":"bippy-1.2.0"}}}}