{"api_version":"1","generated_at":"2026-08-18T11:36:51+00:00","cve":"CVE-2026-68234","urls":{"html":"https://cve.report/CVE-2026-68234","api":"https://cve.report/api/cve/CVE-2026-68234.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-68234","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-68234"},"summary":{"title":"drm/amdgpu: fix bo->pin leaking in amdgpu_bo_create_reserved","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: fix bo->pin leaking in amdgpu_bo_create_reserved\n\namdgpu_bo_create_reserved() only allocates a new BO when\n*bo_ptr (struct amdgpu_bo **bo_ptr as input parameter) is\nNULL, it simply skips creation when *bo_ptr is non-NULL.\nBut it unconditionally reserves, pins, gart allocates\nand maps the BO afterwards.\n\nWhen the same non-NULL BO pointer is passed in again,\nfor example firmware buffers that live in adev and are\nre-loaded on every resume / cp_resume / start\nunder AMDGPU_FW_LOAD_DIRECT, amdgpu_bo_pin() just increases\npin_count unconditionally, however the matching teardown only unpins\nonce, so pin_count never drops to zero, so TTM is not able\nto move, swap or evict a BO, causing BO leaks.\n\nThis commit fixes this issue by only pinning the bo\nonce at creation, and repeated calls no longer\ntake additional pin references.\n\n(cherry picked from commit 3ddc0ae76202c447b6aec61e907b852bc94671cf)","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-10 13:20:11","updated_at":"2026-08-18 07:16:50"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/a2f895f3c852063258d62e9f74b081de07ca95df","name":"https://git.kernel.org/stable/c/a2f895f3c852063258d62e9f74b081de07ca95df","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ba7b6444097a73ccd3d3ac9e2be4ebb73d226460","name":"https://git.kernel.org/stable/c/ba7b6444097a73ccd3d3ac9e2be4ebb73d226460","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9743f60013273987abf415dc47474683d22aaee9","name":"https://git.kernel.org/stable/c/9743f60013273987abf415dc47474683d22aaee9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/51eeef1949c11d3dcb5f422a5d9b3f09ebe8a1bc","name":"https://git.kernel.org/stable/c/51eeef1949c11d3dcb5f422a5d9b3f09ebe8a1bc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2f390b4c83011452753fd84972f657d2b00a952b","name":"https://git.kernel.org/stable/c/2f390b4c83011452753fd84972f657d2b00a952b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68234","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68234","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 53766e5adac75872e9d413cdbfd0e47ae40701f9 51eeef1949c11d3dcb5f422a5d9b3f09ebe8a1bc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 53766e5adac75872e9d413cdbfd0e47ae40701f9 2f390b4c83011452753fd84972f657d2b00a952b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 53766e5adac75872e9d413cdbfd0e47ae40701f9 ba7b6444097a73ccd3d3ac9e2be4ebb73d226460 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 53766e5adac75872e9d413cdbfd0e47ae40701f9 9743f60013273987abf415dc47474683d22aaee9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 53766e5adac75872e9d413cdbfd0e47ae40701f9 a2f895f3c852063258d62e9f74b081de07ca95df git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.14","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.14 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.148 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.101 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.42 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.6 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"68234","cve":"CVE-2026-68234","epss":"0.001680000","percentile":"0.064830000","score_date":"2026-08-17","updated_at":"2026-08-18 00:11:47"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/amd/amdgpu/amdgpu_object.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"51eeef1949c11d3dcb5f422a5d9b3f09ebe8a1bc","status":"affected","version":"53766e5adac75872e9d413cdbfd0e47ae40701f9","versionType":"git"},{"lessThan":"2f390b4c83011452753fd84972f657d2b00a952b","status":"affected","version":"53766e5adac75872e9d413cdbfd0e47ae40701f9","versionType":"git"},{"lessThan":"ba7b6444097a73ccd3d3ac9e2be4ebb73d226460","status":"affected","version":"53766e5adac75872e9d413cdbfd0e47ae40701f9","versionType":"git"},{"lessThan":"9743f60013273987abf415dc47474683d22aaee9","status":"affected","version":"53766e5adac75872e9d413cdbfd0e47ae40701f9","versionType":"git"},{"lessThan":"a2f895f3c852063258d62e9f74b081de07ca95df","status":"affected","version":"53766e5adac75872e9d413cdbfd0e47ae40701f9","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/amd/amdgpu/amdgpu_object.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.14"},{"lessThan":"4.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.148","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.101","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.42","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.148","versionStartIncluding":"4.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.101","versionStartIncluding":"4.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.42","versionStartIncluding":"4.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.6","versionStartIncluding":"4.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"4.14","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: fix bo->pin leaking in amdgpu_bo_create_reserved\n\namdgpu_bo_create_reserved() only allocates a new BO when\n*bo_ptr (struct amdgpu_bo **bo_ptr as input parameter) is\nNULL, it simply skips creation when *bo_ptr is non-NULL.\nBut it unconditionally reserves, pins, gart allocates\nand maps the BO afterwards.\n\nWhen the same non-NULL BO pointer is passed in again,\nfor example firmware buffers that live in adev and are\nre-loaded on every resume / cp_resume / start\nunder AMDGPU_FW_LOAD_DIRECT, amdgpu_bo_pin() just increases\npin_count unconditionally, however the matching teardown only unpins\nonce, so pin_count never drops to zero, so TTM is not able\nto move, swap or evict a BO, causing BO leaks.\n\nThis commit fixes this issue by only pinning the bo\nonce at creation, and repeated calls no longer\ntake additional pin references.\n\n(cherry picked from commit 3ddc0ae76202c447b6aec61e907b852bc94671cf)"}],"providerMetadata":{"dateUpdated":"2026-08-18T06:55:44.440Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/51eeef1949c11d3dcb5f422a5d9b3f09ebe8a1bc"},{"url":"https://git.kernel.org/stable/c/2f390b4c83011452753fd84972f657d2b00a952b"},{"url":"https://git.kernel.org/stable/c/ba7b6444097a73ccd3d3ac9e2be4ebb73d226460"},{"url":"https://git.kernel.org/stable/c/9743f60013273987abf415dc47474683d22aaee9"},{"url":"https://git.kernel.org/stable/c/a2f895f3c852063258d62e9f74b081de07ca95df"}],"title":"drm/amdgpu: fix bo->pin leaking in amdgpu_bo_create_reserved","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-68234","datePublished":"2026-08-10T12:00:59.074Z","dateReserved":"2026-07-30T09:28:09.376Z","dateUpdated":"2026-08-18T06:55:44.440Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-10 13:20:11","lastModifiedDate":"2026-08-18 07:16:50","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"68234","Ordinal":"1","Title":"drm/amdgpu: fix bo->pin leaking in amdgpu_bo_create_reserved","CVE":"CVE-2026-68234","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"68234","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: fix bo->pin leaking in amdgpu_bo_create_reserved\n\namdgpu_bo_create_reserved() only allocates a new BO when\n*bo_ptr (struct amdgpu_bo **bo_ptr as input parameter) is\nNULL, it simply skips creation when *bo_ptr is non-NULL.\nBut it unconditionally reserves, pins, gart allocates\nand maps the BO afterwards.\n\nWhen the same non-NULL BO pointer is passed in again,\nfor example firmware buffers that live in adev and are\nre-loaded on every resume / cp_resume / start\nunder AMDGPU_FW_LOAD_DIRECT, amdgpu_bo_pin() just increases\npin_count unconditionally, however the matching teardown only unpins\nonce, so pin_count never drops to zero, so TTM is not able\nto move, swap or evict a BO, causing BO leaks.\n\nThis commit fixes this issue by only pinning the bo\nonce at creation, and repeated calls no longer\ntake additional pin references.\n\n(cherry picked from commit 3ddc0ae76202c447b6aec61e907b852bc94671cf)","Type":"Description","Title":"drm/amdgpu: fix bo->pin leaking in amdgpu_bo_create_reserved"}]}}}