{"id":"CVE-2024-57943","state":"PUBLISHED","title":"exfat: fix the new buffer was not zeroed before writing","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: fix the new buffer was not zeroed before writing\n\nBefore writing, if a buffer_head marked as new, its data must\nbe zeroed, otherwise uninitialized data in the page cache will\nbe written.\n\nSo this commit uses folio_zero_new_buffers() to zero the new\nbuffers before ->write_end().","publishedAt":"2025-01-21T12:18:11.195Z","updatedAt":"2026-05-11T21:01:07.399Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6630ea49103c3d45461e29b0f6eb0ce750aeb8f5","status":"affected","lessThan":"942c6f91ab8d82a41650e717940b4e577173762f","versionType":"git"},{"version":"6630ea49103c3d45461e29b0f6eb0ce750aeb8f5","status":"affected","lessThan":"98e2fb26d1a9eafe79f46d15d54e68e014d81d8c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/exfat/file.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.10","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/exfat/file.c"]}],"references":["https://git.kernel.org/stable/c/942c6f91ab8d82a41650e717940b4e577173762f","https://git.kernel.org/stable/c/98e2fb26d1a9eafe79f46d15d54e68e014d81d8c"],"weaknesses":["CWE-824"],"ingestedAt":"2026-10-29T20:08:12.933Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/57xxx/CVE-2024-57943.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-57943","state":"PUBLISHED","datePublished":"2025-01-21T12:18:11.195Z","dateUpdated":"2026-05-11T21:01:07.399Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-01-19T11:50:08.378Z"},"containers":{"cna":{"title":"exfat: fix the new buffer was not zeroed before writing","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: fix the new buffer was not zeroed before writing\n\nBefore writing, if a buffer_head marked as new, its data must\nbe zeroed, otherwise uninitialized data in the page cache will\nbe written.\n\nSo this commit uses folio_zero_new_buffers() to zero the new\nbuffers before ->write_end()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6630ea49103c3d45461e29b0f6eb0ce750aeb8f5","status":"affected","lessThan":"942c6f91ab8d82a41650e717940b4e577173762f","versionType":"git"},{"version":"6630ea49103c3d45461e29b0f6eb0ce750aeb8f5","status":"affected","lessThan":"98e2fb26d1a9eafe79f46d15d54e68e014d81d8c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/exfat/file.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.10","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/exfat/file.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/942c6f91ab8d82a41650e717940b4e577173762f"},{"url":"https://git.kernel.org/stable/c/98e2fb26d1a9eafe79f46d15d54e68e014d81d8c"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:01:07.399Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.12.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.13"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.8,"attackVector":"LOCAL","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"id":"CVE-2024-57943","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2025-10-01T19:52:43.533484Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-824","lang":"en","type":"CWE","description":"CWE-824 Access of Uninitialized Pointer"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T19:57:13.743Z"}}]}}}