{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46215", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.105Z", "datePublished": "2026-05-28T09:40:32.050Z", "dateUpdated": "2026-05-28T09:40:32.050Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-28T09:40:32.050Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: Set old handle to NULL before prime swap in change_handle\n\nThere was a potential race condition in change_handle. The ioctl\nbriefly had a single object with two idr entries; a concurrent\ngem_close could delete the object and remove one of the handles\nwhile leaving the other one dangling, which could subsequently\nbe dereferenced for a use-after-free.\n\nTo fix this, do the same dance that gem_close itself does.\n(f6cd7daecff5 drm: Release driver references to handle before making it available again)\nFirst idr_replace the old handle to NULL. Later, if the prime\noperations are successful, actually close it.\n\ncreate_tail required a similar dance to avoid a similar problem.\n(bd46cece51a3 drm/gem: Fix race in drm_gem_handle_create_tail())\nIt idr_allocs the new handle with NULL, then swaps in the correct\nobject later to avoid races. We don't need to do that here, since\nthe only operations that could race are drm_prime, and\nchange_handle holds the prime lock for the entire duration.\n\nv2: cleanups of error paths"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/drm_gem.c"], "versions": [{"version": "53096728b8910c6916ecc6c46a5abc5c678b58d9", "lessThan": "672464dd53231509c9c771110798c56d4660e19e", "status": "affected", "versionType": "git"}, {"version": "53096728b8910c6916ecc6c46a5abc5c678b58d9", "lessThan": "61bd96d3e5472c253f9c1ab77608f0c8aaa9d025", "status": "affected", "versionType": "git"}, {"version": "53096728b8910c6916ecc6c46a5abc5c678b58d9", "lessThan": "5e28b7b94408897e41c63477aabc9e1db439bc8c", "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/drm_gem.c"], "versions": [{"version": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.32", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.9", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1-rc3", "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": "6.18", "versionEndExcluding": "6.18.32"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.0.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.1-rc3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/672464dd53231509c9c771110798c56d4660e19e"}, {"url": "https://git.kernel.org/stable/c/61bd96d3e5472c253f9c1ab77608f0c8aaa9d025"}, {"url": "https://git.kernel.org/stable/c/5e28b7b94408897e41c63477aabc9e1db439bc8c"}], "title": "drm: Set old handle to NULL before prime swap in change_handle", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: Set old handle to NULL before prime swap in change_handle\n\nThere was a potential race condition in change_handle. The ioctl\nbriefly had a single object with two idr entries; a concurrent\ngem_close could delete the object and remove one of the handles\nwhile leaving the other one dangling, which could subsequently\nbe dereferenced for a use-after-free.\n\nTo fix this, do the same dance that gem_close itself does.\n(f6cd7daecff5 drm: Release driver references to handle before making it available again)\nFirst idr_replace the old handle to NULL. Later, if the prime\noperations are successful, actually close it.\n\ncreate_tail required a similar dance to avoid a similar problem.\n(bd46cece51a3 drm/gem: Fix race in drm_gem_handle_create_tail())\nIt idr_allocs the new handle with NULL, then swaps in the correct\nobject later to avoid races. We don't need to do that here, since\nthe only operations that could race are drm_prime, and\nchange_handle holds the prime lock for the entire duration.\n\nv2: cleanups of error paths"}], "id": "CVE-2026-46215", "lastModified": "2026-05-28T13:44:01.663", "metrics": {}, "published": "2026-05-28T10:16:37.147", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5e28b7b94408897e41c63477aabc9e1db439bc8c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/61bd96d3e5472c253f9c1ab77608f0c8aaa9d025"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/672464dd53231509c9c771110798c56d4660e19e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{}

{"created": "2026-05-28T13:15:22.415033+00:00", "updated": "2026-05-28T13:15:22.415045+00:00", "vendors": []}