{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98949", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.382Z", "datePublished": "2026-10-23T12:19:08.946Z", "dateUpdated": "2026-10-23T12:19:08.946Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-23T12:19:08.946Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/imagination: Fix reference and vm_bo handling in remap()\n\nWhen a map overlaps part of an existing mapping, pvr_vm_gpuva_remap()\nsplits the mapping into prev/next parts covering what the request did\nnot take, instead of creating something new. It gets two things wrong.\n\n- A GEM reference is taken for each part but it's never needed and never\n dropped, so it leaks one reference per split (remap-next-in-2m in\n tests/imagination/pvr_vm_map.c):\n\n CRITICAL: 33558528 bytes of shmem still held after close\n\n- The parts still belong to the original object being split, but\n pvr_vm_gpuva_remap() links them to ctx->gpuvm_bo, the new object's\n vm_bo:\n\n prev_va --obj--> BO_A BO_B <--obj-- vm_bo (ctx->gpuvm_bo)\n \\___________link___________/ (mismatch: BO_A != BO_B)\n\n drm_gpuva_link() catches the mismatch:\n\n WARNING: drivers/gpu/drm/drm_gpuvm.c:2108 at drm_gpuva_link+0x2ec/0x310\n drm_WARN_ON(obj != vm_bo->obj)\n Call trace:\n drm_gpuva_link\n pvr_vm_gpuva_remap\n __drm_gpuvm_sm_map\n pvr_vm_map\n pvr_ioctl_vm_map\n\n Link them to op->remap.unmap->va->vm_bo instead.\n\nThe locking of the GPUVA lists of the other objects touched by a split is\nnot addressed here; it is handled by switching the GPUVM to immediate\nmode."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/imagination/pvr_vm.c"], "versions": [{"version": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11", "lessThan": "521cf8403a185a9d5790fe324bb43ba7ea85f51c", "status": "affected", "versionType": "git"}, {"version": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11", "lessThan": "9caa2eca5cc8372517ff36a83f321d4326abae93", "status": "affected", "versionType": "git"}, {"version": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11", "lessThan": "784356aa88b82035d70e9faeded49b70cddeb29e", "status": "affected", "versionType": "git"}, {"version": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11", "lessThan": "196d4d10c1b33ae176685ff42a9994a5952b1d0f", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/imagination/pvr_vm.c"], "versions": [{"version": "6.8", "status": "affected"}, {"version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.113", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.57", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.11", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.12.113"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.18.57"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.2.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/521cf8403a185a9d5790fe324bb43ba7ea85f51c"}, {"url": "https://git.kernel.org/stable/c/9caa2eca5cc8372517ff36a83f321d4326abae93"}, {"url": "https://git.kernel.org/stable/c/784356aa88b82035d70e9faeded49b70cddeb29e"}, {"url": "https://git.kernel.org/stable/c/196d4d10c1b33ae176685ff42a9994a5952b1d0f"}], "title": "drm/imagination: Fix reference and vm_bo handling in remap()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/imagination/pvr_vm.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "521cf8403a185a9d5790fe324bb43ba7ea85f51c", "status": "affected", "version": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11", "versionType": "git"}, {"lessThan": "9caa2eca5cc8372517ff36a83f321d4326abae93", "status": "affected", "version": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11", "versionType": "git"}, {"lessThan": "784356aa88b82035d70e9faeded49b70cddeb29e", "status": "affected", "version": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11", "versionType": "git"}, {"lessThan": "196d4d10c1b33ae176685ff42a9994a5952b1d0f", "status": "affected", "version": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/imagination/pvr_vm.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.8"}, {"lessThan": "6.8", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.113", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.57", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.11", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/imagination: Fix reference and vm_bo handling in remap()\n\nWhen a map overlaps part of an existing mapping, pvr_vm_gpuva_remap()\nsplits the mapping into prev/next parts covering what the request did\nnot take, instead of creating something new. It gets two things wrong.\n\n- A GEM reference is taken for each part but it's never needed and never\n dropped, so it leaks one reference per split (remap-next-in-2m in\n tests/imagination/pvr_vm_map.c):\n\n CRITICAL: 33558528 bytes of shmem still held after close\n\n- The parts still belong to the original object being split, but\n pvr_vm_gpuva_remap() links them to ctx->gpuvm_bo, the new object's\n vm_bo:\n\n prev_va --obj--> BO_A BO_B <--obj-- vm_bo (ctx->gpuvm_bo)\n \\___________link___________/ (mismatch: BO_A != BO_B)\n\n drm_gpuva_link() catches the mismatch:\n\n WARNING: drivers/gpu/drm/drm_gpuvm.c:2108 at drm_gpuva_link+0x2ec/0x310\n drm_WARN_ON(obj != vm_bo->obj)\n Call trace:\n drm_gpuva_link\n pvr_vm_gpuva_remap\n __drm_gpuvm_sm_map\n pvr_vm_map\n pvr_ioctl_vm_map\n\n Link them to op->remap.unmap->va->vm_bo instead.\n\nThe locking of the GPUVA lists of the other objects touched by a split is\nnot addressed here; it is handled by switching the GPUVM to immediate\nmode."}], "id": "CVE-2026-98949", "lastModified": "2026-10-23T13:17:16.037", "metrics": {}, "published": "2026-10-23T13:17:16.037", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/196d4d10c1b33ae176685ff42a9994a5952b1d0f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/521cf8403a185a9d5790fe324bb43ba7ea85f51c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/784356aa88b82035d70e9faeded49b70cddeb29e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9caa2eca5cc8372517ff36a83f321d4326abae93"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}