{"id":"CVE-2024-56767","state":"PUBLISHED","title":"dmaengine: at_xdmac: avoid null_prt_deref in at_xdmac_prep_dma_memset","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: at_xdmac: avoid null_prt_deref in at_xdmac_prep_dma_memset\n\nThe at_xdmac_memset_create_desc may return NULL, which will lead to a\nnull pointer dereference. For example, the len input is error, or the\natchan->free_descs_list is empty and memory is exhausted. Therefore, add\ncheck to avoid this.","publishedAt":"2025-01-06T16:20:45.430Z","updatedAt":"2026-05-11T20:58:40.804Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b206d9a23ac71cb905f5fb6e0cd813406f89b678","status":"affected","lessThan":"3d229600c54e9e0909080ecaf1aab0642aefa5f0","versionType":"git"},{"version":"b206d9a23ac71cb905f5fb6e0cd813406f89b678","status":"affected","lessThan":"ed1a8aaa344522c0c349ac9042db27ad130ef913","versionType":"git"},{"version":"b206d9a23ac71cb905f5fb6e0cd813406f89b678","status":"affected","lessThan":"8d364597de9ce2a5f52714224bfe6c2e7a29b303","versionType":"git"},{"version":"b206d9a23ac71cb905f5fb6e0cd813406f89b678","status":"affected","lessThan":"fdba6d5e455388377ec7e82a5913ddfcc7edd93b","versionType":"git"},{"version":"b206d9a23ac71cb905f5fb6e0cd813406f89b678","status":"affected","lessThan":"e658f1c133b854b2ae799147301d82dddb8f3162","versionType":"git"},{"version":"b206d9a23ac71cb905f5fb6e0cd813406f89b678","status":"affected","lessThan":"54376d8d26596f98ed7432a788314bb9154bf3e3","versionType":"git"},{"version":"b206d9a23ac71cb905f5fb6e0cd813406f89b678","status":"affected","lessThan":"c43ec96e8d34399bd9dab2f2dc316b904892133f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/dma/at_xdmac.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.2","versionType":"semver"},{"version":"5.4.289","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.233","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.176","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.123","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.69","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.8","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":["drivers/dma/at_xdmac.c"]}],"references":["https://git.kernel.org/stable/c/3d229600c54e9e0909080ecaf1aab0642aefa5f0","https://git.kernel.org/stable/c/ed1a8aaa344522c0c349ac9042db27ad130ef913","https://git.kernel.org/stable/c/8d364597de9ce2a5f52714224bfe6c2e7a29b303","https://git.kernel.org/stable/c/fdba6d5e455388377ec7e82a5913ddfcc7edd93b","https://git.kernel.org/stable/c/e658f1c133b854b2ae799147301d82dddb8f3162","https://git.kernel.org/stable/c/54376d8d26596f98ed7432a788314bb9154bf3e3","https://git.kernel.org/stable/c/c43ec96e8d34399bd9dab2f2dc316b904892133f","https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html","https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:08:12.933Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/56xxx/CVE-2024-56767.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-56767","state":"PUBLISHED","datePublished":"2025-01-06T16:20:45.430Z","dateUpdated":"2026-05-11T20:58:40.804Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-12-29T11:26:39.762Z"},"containers":{"cna":{"title":"dmaengine: at_xdmac: avoid null_prt_deref in at_xdmac_prep_dma_memset","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: at_xdmac: avoid null_prt_deref in at_xdmac_prep_dma_memset\n\nThe at_xdmac_memset_create_desc may return NULL, which will lead to a\nnull pointer dereference. For example, the len input is error, or the\natchan->free_descs_list is empty and memory is exhausted. Therefore, add\ncheck to avoid this."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b206d9a23ac71cb905f5fb6e0cd813406f89b678","status":"affected","lessThan":"3d229600c54e9e0909080ecaf1aab0642aefa5f0","versionType":"git"},{"version":"b206d9a23ac71cb905f5fb6e0cd813406f89b678","status":"affected","lessThan":"ed1a8aaa344522c0c349ac9042db27ad130ef913","versionType":"git"},{"version":"b206d9a23ac71cb905f5fb6e0cd813406f89b678","status":"affected","lessThan":"8d364597de9ce2a5f52714224bfe6c2e7a29b303","versionType":"git"},{"version":"b206d9a23ac71cb905f5fb6e0cd813406f89b678","status":"affected","lessThan":"fdba6d5e455388377ec7e82a5913ddfcc7edd93b","versionType":"git"},{"version":"b206d9a23ac71cb905f5fb6e0cd813406f89b678","status":"affected","lessThan":"e658f1c133b854b2ae799147301d82dddb8f3162","versionType":"git"},{"version":"b206d9a23ac71cb905f5fb6e0cd813406f89b678","status":"affected","lessThan":"54376d8d26596f98ed7432a788314bb9154bf3e3","versionType":"git"},{"version":"b206d9a23ac71cb905f5fb6e0cd813406f89b678","status":"affected","lessThan":"c43ec96e8d34399bd9dab2f2dc316b904892133f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/dma/at_xdmac.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.2","versionType":"semver"},{"version":"5.4.289","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.233","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.176","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.123","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.69","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.8","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":["drivers/dma/at_xdmac.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/3d229600c54e9e0909080ecaf1aab0642aefa5f0"},{"url":"https://git.kernel.org/stable/c/ed1a8aaa344522c0c349ac9042db27ad130ef913"},{"url":"https://git.kernel.org/stable/c/8d364597de9ce2a5f52714224bfe6c2e7a29b303"},{"url":"https://git.kernel.org/stable/c/fdba6d5e455388377ec7e82a5913ddfcc7edd93b"},{"url":"https://git.kernel.org/stable/c/e658f1c133b854b2ae799147301d82dddb8f3162"},{"url":"https://git.kernel.org/stable/c/54376d8d26596f98ed7432a788314bb9154bf3e3"},{"url":"https://git.kernel.org/stable/c/c43ec96e8d34399bd9dab2f2dc316b904892133f"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T20:58:40.804Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"5.4.289"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"5.10.233"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"5.15.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.1.123"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.6.69"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.12.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.13"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T20:54:02.496Z"}}]}}}