{"id":"CVE-2023-53444","state":"PUBLISHED","title":"drm/ttm: fix bulk_move corruption when adding a entry","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/ttm: fix bulk_move corruption when adding a entry\n\nWhen the resource is the first in the bulk_move range, adding it again\n(thus moving it to the tail) will corrupt the list since the first\npointer is not moved. This eventually lead to null pointer deref in\nttm_lru_bulk_move_del()","publishedAt":"2025-09-18T16:04:20.572Z","updatedAt":"2026-05-11T19:45:07.404Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"fee2ede155423b0f7a559050a39750b98fe9db69","status":"affected","lessThan":"70a3015683b007a0db4a1e858791b69afd45fc83","versionType":"git"},{"version":"fee2ede155423b0f7a559050a39750b98fe9db69","status":"affected","lessThan":"e7cf50e41bdc2d574056ebbfeaafc5f0e2562d5b","versionType":"git"},{"version":"fee2ede155423b0f7a559050a39750b98fe9db69","status":"affected","lessThan":"4481913607e58196c48a4fef5e6f45350684ec3c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/ttm/ttm_resource.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.19","versionType":"semver"},{"version":"6.1.42","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.4.7","status":"unaffected","lessThanOrEqual":"6.4.*","versionType":"semver"},{"version":"6.5","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/ttm/ttm_resource.c"]}],"references":["https://git.kernel.org/stable/c/70a3015683b007a0db4a1e858791b69afd45fc83","https://git.kernel.org/stable/c/e7cf50e41bdc2d574056ebbfeaafc5f0e2562d5b","https://git.kernel.org/stable/c/4481913607e58196c48a4fef5e6f45350684ec3c"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53444.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53444","state":"PUBLISHED","datePublished":"2025-09-18T16:04:20.572Z","dateUpdated":"2026-05-11T19:45:07.404Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-09-17T14:54:09.752Z"},"containers":{"cna":{"title":"drm/ttm: fix bulk_move corruption when adding a entry","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/ttm: fix bulk_move corruption when adding a entry\n\nWhen the resource is the first in the bulk_move range, adding it again\n(thus moving it to the tail) will corrupt the list since the first\npointer is not moved. This eventually lead to null pointer deref in\nttm_lru_bulk_move_del()"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"fee2ede155423b0f7a559050a39750b98fe9db69","status":"affected","lessThan":"70a3015683b007a0db4a1e858791b69afd45fc83","versionType":"git"},{"version":"fee2ede155423b0f7a559050a39750b98fe9db69","status":"affected","lessThan":"e7cf50e41bdc2d574056ebbfeaafc5f0e2562d5b","versionType":"git"},{"version":"fee2ede155423b0f7a559050a39750b98fe9db69","status":"affected","lessThan":"4481913607e58196c48a4fef5e6f45350684ec3c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/ttm/ttm_resource.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.19","versionType":"semver"},{"version":"6.1.42","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.4.7","status":"unaffected","lessThanOrEqual":"6.4.*","versionType":"semver"},{"version":"6.5","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/ttm/ttm_resource.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/70a3015683b007a0db4a1e858791b69afd45fc83"},{"url":"https://git.kernel.org/stable/c/e7cf50e41bdc2d574056ebbfeaafc5f0e2562d5b"},{"url":"https://git.kernel.org/stable/c/4481913607e58196c48a4fef5e6f45350684ec3c"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:45:07.404Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.1.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.4.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.5"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2023-53444","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-01-14T19:19:01.482255Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","lang":"en","type":"CWE","description":"CWE-476 NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-14T19:23:11.377Z"}}]}}}