{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-42231","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-07-30T07:40:12.251Z","datePublished":"2024-07-30T07:47:11.409Z","dateUpdated":"2025-05-04T09:24:39.735Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T09:24:39.735Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: zoned: fix calc_available_free_space() for zoned mode\n\ncalc_available_free_space() returns the total size of metadata (or\nsystem) block groups, which can be allocated from unallocated disk\nspace. The logic is wrong on zoned mode in two places.\n\nFirst, the calculation of data_chunk_size is wrong. We always allocate\none zone as one chunk, and no partial allocation of a zone. So, we\nshould use zone_size (= data_sinfo->chunk_size) as it is.\n\nSecond, the result \"avail\" may not be zone aligned. Since we always\nallocate one zone as one chunk on zoned mode, returning non-zone size\naligned bytes will result in less pressure on the async metadata reclaim\nprocess.\n\nThis is serious for the nearly full state with a large zone size device.\nAllowing over-commit too much will result in less async reclaim work and\nend up in ENOSPC. We can align down to the zone size to avoid that."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/space-info.c"],"versions":[{"version":"cb6cbab79055ca207ad88bc54226b48ececdcef0","lessThan":"8548903b1999bba02a2b894ad750ab8eb1f40307","status":"affected","versionType":"git"},{"version":"cb6cbab79055ca207ad88bc54226b48ececdcef0","lessThan":"64d2c847ba380e07b9072d65a50aa6469d2aa43f","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/space-info.c"],"versions":[{"version":"6.7","status":"affected"},{"version":"0","lessThan":"6.7","status":"unaffected","versionType":"semver"},{"version":"6.9.9","lessThanOrEqual":"6.9.*","status":"unaffected","versionType":"semver"},{"version":"6.10","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":"6.7","versionEndExcluding":"6.9.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.10"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/8548903b1999bba02a2b894ad750ab8eb1f40307"},{"url":"https://git.kernel.org/stable/c/64d2c847ba380e07b9072d65a50aa6469d2aa43f"}],"title":"btrfs: zoned: fix calc_available_free_space() for zoned mode","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T04:54:32.610Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/8548903b1999bba02a2b894ad750ab8eb1f40307","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/64d2c847ba380e07b9072d65a50aa6469d2aa43f","tags":["x_transferred"]}]},{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-42231","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T16:14:20.817500Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-09-11T17:34:32.740Z"}}]}}