{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-26630","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-19T14:20:24.135Z","datePublished":"2024-03-13T15:50:32.480Z","dateUpdated":"2026-05-11T20:01:07.405Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T20:01:07.405Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm: cachestat: fix folio read-after-free in cache walk\n\nIn cachestat, we access the folio from the page cache's xarray to compute\nits page offset, and check for its dirty and writeback flags.  However, we\ndo not hold a reference to the folio before performing these actions,\nwhich means the folio can concurrently be released and reused as another\nfolio/page/slab.\n\nGet around this altogether by just using xarray's existing machinery for\nthe folio page offsets and dirty/writeback states.\n\nThis changes behavior for tmpfs files to now always report zeroes in their\ndirty and writeback counters.  This is okay as tmpfs doesn't follow\nconventional writeback cache behavior: its pages get \"cleaned\" during\nswapout, after which they're no longer resident etc."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/filemap.c"],"versions":[{"version":"cf264e1329fb0307e044f7675849f9f38b44c11a","lessThan":"ba60fdf75e89ea762bb617be578dc47f27655117","status":"affected","versionType":"git"},{"version":"cf264e1329fb0307e044f7675849f9f38b44c11a","lessThan":"fe7e008e0ce728252e4ec652cceebcc62211657c","status":"affected","versionType":"git"},{"version":"cf264e1329fb0307e044f7675849f9f38b44c11a","lessThan":"3a75cb05d53f4a6823a32deb078de1366954a804","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/filemap.c"],"versions":[{"version":"6.5","status":"affected"},{"version":"0","lessThan":"6.5","status":"unaffected","versionType":"semver"},{"version":"6.6.21","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.7.9","lessThanOrEqual":"6.7.*","status":"unaffected","versionType":"semver"},{"version":"6.8","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":"6.5","versionEndExcluding":"6.6.21"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.7.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.8"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ba60fdf75e89ea762bb617be578dc47f27655117"},{"url":"https://git.kernel.org/stable/c/fe7e008e0ce728252e4ec652cceebcc62211657c"},{"url":"https://git.kernel.org/stable/c/3a75cb05d53f4a6823a32deb078de1366954a804"}],"title":"mm: cachestat: fix folio read-after-free in cache walk","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-26630","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-03-13T19:45:46.313433Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:49:39.851Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T00:07:19.749Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/ba60fdf75e89ea762bb617be578dc47f27655117","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/fe7e008e0ce728252e4ec652cceebcc62211657c","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/3a75cb05d53f4a6823a32deb078de1366954a804","tags":["x_transferred"]}]}]}}