{"api_version":"1","generated_at":"2026-05-07T11:16:22+00:00","cve":"CVE-2026-23468","urls":{"html":"https://cve.report/CVE-2026-23468","api":"https://cve.report/api/cve/CVE-2026-23468.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-23468","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23468"},"summary":{"title":"drm/amdgpu: Limit BO list entry count to prevent resource exhaustion","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Limit BO list entry count to prevent resource exhaustion\n\nUserspace can pass an arbitrary number of BO list entries via the\nbo_number field. Although the previous multiplication overflow check\nprevents out-of-bounds allocation, a large number of entries could still\ncause excessive memory allocation (up to potentially gigabytes) and\nunnecessarily long list processing times.\n\nIntroduce a hard limit of 128k entries per BO list, which is more than\nsufficient for any realistic use case (e.g., a single list containing all\nbuffers in a large scene). This prevents memory exhaustion attacks and\nensures predictable performance.\n\nReturn -EINVAL if the requested entry count exceeds the limit\n\n(cherry picked from commit 688b87d39e0aa8135105b40dc167d74b5ada5332)","state":"PUBLISHED","assigner":"Linux","published_at":"2026-04-03 16:16:34","updated_at":"2026-05-07 06:16:03"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/5ce4a38e6c2488949e373d5066303f9c128db614","name":"https://git.kernel.org/stable/c/5ce4a38e6c2488949e373d5066303f9c128db614","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6270b1a5dab94665d7adce3dc78bc9066ed28bdd","name":"https://git.kernel.org/stable/c/6270b1a5dab94665d7adce3dc78bc9066ed28bdd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2723e6851309531ce61aed74e93a0cd268cc862a","name":"https://git.kernel.org/stable/c/2723e6851309531ce61aed74e93a0cd268cc862a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f462624a6e4b5f1ec2664c2c53e408b2f4fb53e9","name":"https://git.kernel.org/stable/c/f462624a6e4b5f1ec2664c2c53e408b2f4fb53e9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-23468","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23468","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 2723e6851309531ce61aed74e93a0cd268cc862a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 5ce4a38e6c2488949e373d5066303f9c128db614 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 f462624a6e4b5f1ec2664c2c53e408b2f4fb53e9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 6270b1a5dab94665d7adce3dc78bc9066ed28bdd git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.2","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.2 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.86 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.20 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.10 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"23468","cve":"CVE-2026-23468","epss":"0.000170000","percentile":"0.039750000","score_date":"2026-04-07","updated_at":"2026-04-08 00:03:39"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2723e6851309531ce61aed74e93a0cd268cc862a","status":"affected","version":"d38ceaf99ed015f2a0b9af3499791bd3a3daae21","versionType":"git"},{"lessThan":"5ce4a38e6c2488949e373d5066303f9c128db614","status":"affected","version":"d38ceaf99ed015f2a0b9af3499791bd3a3daae21","versionType":"git"},{"lessThan":"f462624a6e4b5f1ec2664c2c53e408b2f4fb53e9","status":"affected","version":"d38ceaf99ed015f2a0b9af3499791bd3a3daae21","versionType":"git"},{"lessThan":"6270b1a5dab94665d7adce3dc78bc9066ed28bdd","status":"affected","version":"d38ceaf99ed015f2a0b9af3499791bd3a3daae21","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.2"},{"lessThan":"4.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.86","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.20","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.86","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.20","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.10","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"4.2","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Limit BO list entry count to prevent resource exhaustion\n\nUserspace can pass an arbitrary number of BO list entries via the\nbo_number field. Although the previous multiplication overflow check\nprevents out-of-bounds allocation, a large number of entries could still\ncause excessive memory allocation (up to potentially gigabytes) and\nunnecessarily long list processing times.\n\nIntroduce a hard limit of 128k entries per BO list, which is more than\nsufficient for any realistic use case (e.g., a single list containing all\nbuffers in a large scene). This prevents memory exhaustion attacks and\nensures predictable performance.\n\nReturn -EINVAL if the requested entry count exceeds the limit\n\n(cherry picked from commit 688b87d39e0aa8135105b40dc167d74b5ada5332)"}],"providerMetadata":{"dateUpdated":"2026-05-07T04:35:04.390Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/2723e6851309531ce61aed74e93a0cd268cc862a"},{"url":"https://git.kernel.org/stable/c/5ce4a38e6c2488949e373d5066303f9c128db614"},{"url":"https://git.kernel.org/stable/c/f462624a6e4b5f1ec2664c2c53e408b2f4fb53e9"},{"url":"https://git.kernel.org/stable/c/6270b1a5dab94665d7adce3dc78bc9066ed28bdd"}],"title":"drm/amdgpu: Limit BO list entry count to prevent resource exhaustion","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-23468","datePublished":"2026-04-03T15:15:47.207Z","dateReserved":"2026-01-13T15:37:46.021Z","dateUpdated":"2026-05-07T04:35:04.390Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-03 16:16:34","lastModifiedDate":"2026-05-07 06:16:03","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"23468","Ordinal":"1","Title":"drm/amdgpu: Limit BO list entry count to prevent resource exhaus","CVE":"CVE-2026-23468","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"23468","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Limit BO list entry count to prevent resource exhaustion\n\nUserspace can pass an arbitrary number of BO list entries via the\nbo_number field. Although the previous multiplication overflow check\nprevents out-of-bounds allocation, a large number of entries could still\ncause excessive memory allocation (up to potentially gigabytes) and\nunnecessarily long list processing times.\n\nIntroduce a hard limit of 128k entries per BO list, which is more than\nsufficient for any realistic use case (e.g., a single list containing all\nbuffers in a large scene). This prevents memory exhaustion attacks and\nensures predictable performance.\n\nReturn -EINVAL if the requested entry count exceeds the limit\n\n(cherry picked from commit 688b87d39e0aa8135105b40dc167d74b5ada5332)","Type":"Description","Title":"drm/amdgpu: Limit BO list entry count to prevent resource exhaus"}]}}}