CVE-2026-53145

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The story thus far:\n\n5e28b7b94408 (\"drm: Set old handle to NULL before prime swap in\nchange_handle\") tried to fix a race condition between the gem_close and\ngem_change_handle ioctls, but got a few things wrong:\n\n- There's a confusion with the local variable handle, which is actually\n the new handle, and so the two-stage trick was actually applied to the\n wrong idr slot. 7164d78559b0 (\"drm/gem: fix race between\n change_handle and handle_delete\") tried to fix that by adding yet\n another code block, but forgot to add the error handling. Which meant\n we now have two paths, both kinda wrong.\n\n- dc366607c41c (\"drm: Replace old pointer to new idr\") tried to apply\n another fix, but inconsistently, again because of the handle confusion\n - this would be the right fix (kinda, somewhat, it's a mess) if we'd\n do the two-stage approach for the new handle. Except that wasn't the\n intent of the original fix.\n\nWe also didn't have an igt merged for the original ioctl, which is a big\nno-go. This was attempted to address off-list in the original bugfix,\nand amd QA people claimed the bug was fixed now. Very clearly that's not\nthe case. Here's my attempt to sort this out:\n\n- Rename the local variable to new_handle, the old aliasing with\n args->handle is just too dangerously confusing.\n\n- Merge the gem obj lookup with the two-stage idr_replace so that we\n avoid getting ourselves confused there.\n\n- This means we don't have a surplus temporary reference anymore, only\n an inherited from the idr. A concurrent gem_close on the new_handle\n could steal that. Fix that with the same two-stage approach\n create_tail uses. This is a bit overkill as documented in the comment,\n but I also don't trust my ability to understand this all correctly, so\n go with the established pattern we have from other ioctls instead for\n maximum paranoia.\n\n- Adjust error paths. I've tried to make the error and success paths\n common, because they are identical except for which handle is removed\n and on which we call idr_replace to (re)install the object again. But\n that made things messier to read, so I've left it at the more verbose\n version, which unfortunately hides the symmetry in the entire code\n flow a bit.\n\n- While at it, also replace the 7 space indent with 1 tab.\n\nAnd finally, because I flat out don't trust my abilities here at all\nanymore:\n\n- Disable the ioctl until we have the igt situation and everything else\n sorted out on-list and with full consensus.\n\nv2:\n\nSashiko noticed that I didn't handle the error path for idr_replace\ncorrectly, it must be checked with IS_ERR_OR_NULL like in\ngem_handle_delete. So yeah, definitely should just the existing paths\n1:1 because this is endless amounts of tricky.\n\nAlso add the Fixes: line for the original ioctl, I forgot that too."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable code is reached through the local DRM core ioctl DRM_IOCTL_GEM_CHANGE_HANDLE on a DRM device file, not through network or physical input. Render nodes expose this ioctl path to local userspace.\nAC:L - The bug is a race between GEM_CHANGE_HANDLE and GEM_CLOSE on attacker-controlled handles, and the attacker can drive both sides with concurrent ioctl calls. Repetition and handle selection are under attacker control.\nPR:L - The ioctl was registered with DRM_RENDER_ALLOW, so it does not require DRM master, authentication, or CAP_SYS_ADMIN on a render node. It requires local unprivileged access to the DRM device file.\nUI:N - No victim action is required after the attacker has local execution and device access. The attacker triggers the race directly with ioctl calls.\nS:U - The impact remains within the kernel security authority of the same host. This is not a VM escape, IOMMU bypass, or cross-scope boundary violation.\nC:H - The race can leave a dangling GEM object pointer in the per-file IDR, producing a use-after-free. Under the required kernel guidance, UAF memory corruption is scored as high confidentiality impact.\nI:H - The dangling drm_gem_object can be reused and later dereferenced through driver callbacks, making function pointer hijack or arbitrary kernel write/code execution defensible. Under the required kernel guidance, UAF is high integrity impact.\nA:H - The UAF and handle-count corruption can trigger kernel warnings, crashes, or panics through later GEM close/lookup paths. Kernel crash availability impact is high."}]}], "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", "drivers/gpu/drm/drm_ioctl.c"], "versions": [{"version": "672464dd53231509c9c771110798c56d4660e19e", "lessThan": "c0639ede2f24ac224b2079cd35ecd5fd8ad4e3cd", "status": "affected", "versionType": "git"}, {"version": "61bd96d3e5472c253f9c1ab77608f0c8aaa9d025", "lessThan": "1d9b93df7fc768228906e24220591ec1cddad391", "status": "affected", "versionType": "git"}, {"version": "5e28b7b94408897e41c63477aabc9e1db439bc8c", "lessThan": "1a4f03d22fb655e5f192244fb2c87d8066fcfca2", "status": "affected", "versionType": "git"}, {"version": "318b995cffcfcaa69a234d28123a3f4ae186a9df", "status": "affected", "versionType": "git"}, {"version": "38f12d0e10d83b66fa1466400d876a3a8da31542", "status": "affected", "versionType": "git"}, {"version": "0dfa42cfe4dbe114533480503934f43e33c1e83d", "status": "affected", "versionType": "git"}, {"version": "cde2c9257cbe8463b9dcf7b1075177b72b5fd938", "status": "affected", "versionType": "git"}]}, {"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", "drivers/gpu/drm/drm_ioctl.c"], "versions": [{"version": "6.18.32", "lessThan": "6.18.36", "status": "affected", "versionType": "semver"}, {"version": "7.0.9", "lessThan": "7.0.13", "status": "affected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18.32", "versionEndExcluding": "6.18.36"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.0.9", "versionEndExcluding": "7.0.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c0639ede2f24ac224b2079cd35ecd5fd8ad4e3cd"}, {"url": "https://git.kernel.org/stable/c/1d9b93df7fc768228906e24220591ec1cddad391"}, {"url": "https://git.kernel.org/stable/c/1a4f03d22fb655e5f192244fb2c87d8066fcfca2"}], "title": "drm/gem: Try to fix change_handle ioctl, attempt 4", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"affected": [{"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:10"], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:6"], "defaultStatus": "unknown", "packageName": "kernel", "product": "Red Hat Enterprise Linux 6", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:7"], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:7"], "defaultStatus": "affected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:8"], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:8"], "defaultStatus": "affected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:9"], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:9"], "defaultStatus": "affected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat"}], "datePublic": "2026-06-25T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "A flaw was found in the Linux kernel's Direct Rendering Manager (DRM) Graphics Execution Manager (GEM) subsystem. A race condition exists within the `change_handle` ioctl between `gem_close` and `gem_change_handle` operations. This could lead to incorrect handling of graphics memory, potentially resulting in system instability or unexpected behavior. The `change_handle` ioctl has been temporarily disabled to mitigate this issue."}], "metrics": [{"other": {"content": {"namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS"}], "problemTypes": [{"descriptions": [{"cweId": "CWE-367", "description": "Time-of-check Time-of-use (TOCTOU) Race Condition", "lang": "en", "type": "CWE"}]}], "references": [{"tags": ["vdb-entry", "x_refsource_REDHAT"], "url": "https://access.redhat.com/security/cve/CVE-2026-53145"}, {"name": "RHBZ#2492773", "tags": ["issue-tracking", "x_refsource_REDHAT"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492773"}, {"tags": ["x_sadp-csaf-vex"], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53145.json"}], "timeline": [{"lang": "en", "time": "2026-06-25T00:00:00.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-06-25T00:00:00.000Z", "value": "Made public."}], "title": "kernel: drm/gem: Try to fix change_handle ioctl, attempt 4", "x_adpType": "supplier", "x_generator": {"engine": "sadp-cli 1.0.0"}, "providerMetadata": {"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-07-15T00:44:51.168Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-53145", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:25:55.352520Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-367", "description": "CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T19:57:25.538Z"}}]}}

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Render nodes expose this ioctl path to local userspace.\nAC:L - The bug is a race between GEM_CHANGE_HANDLE and GEM_CLOSE on attacker-controlled handles, and the attacker can drive both sides with concurrent ioctl calls. Repetition and handle selection are under attacker control.\nPR:L - The ioctl was registered with DRM_RENDER_ALLOW, so it does not require DRM master, authentication, or CAP_SYS_ADMIN on a render node. It requires local unprivileged access to the DRM device file.\nUI:N - No victim action is required after the attacker has local execution and device access. The attacker triggers the race directly with ioctl calls.\nS:U - The impact remains within the kernel security authority of the same host. This is not a VM escape, IOMMU bypass, or cross-scope boundary violation.\nC:H - The race can leave a dangling GEM object pointer in the per-file IDR, producing a use-after-free. Under the required kernel guidance, UAF memory corruption is scored as high confidentiality impact.\nI:H - The dangling drm_gem_object can be reused and later dereferenced through driver callbacks, making function pointer hijack or arbitrary kernel write/code execution defensible. Under the required kernel guidance, UAF is high integrity impact.\nA:H - The UAF and handle-count corruption can trigger kernel warnings, crashes, or panics through later GEM close/lookup paths. 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The story thus far:\n\n5e28b7b94408 (\"drm: Set old handle to NULL before prime swap in\nchange_handle\") tried to fix a race condition between the gem_close and\ngem_change_handle ioctls, but got a few things wrong:\n\n- There's a confusion with the local variable handle, which is actually\n the new handle, and so the two-stage trick was actually applied to the\n wrong idr slot. 7164d78559b0 (\"drm/gem: fix race between\n change_handle and handle_delete\") tried to fix that by adding yet\n another code block, but forgot to add the error handling. Which meant\n we now have two paths, both kinda wrong.\n\n- dc366607c41c (\"drm: Replace old pointer to new idr\") tried to apply\n another fix, but inconsistently, again because of the handle confusion\n - this would be the right fix (kinda, somewhat, it's a mess) if we'd\n do the two-stage approach for the new handle. Except that wasn't the\n intent of the original fix.\n\nWe also didn't have an igt merged for the original ioctl, which is a big\nno-go. This was attempted to address off-list in the original bugfix,\nand amd QA people claimed the bug was fixed now. Very clearly that's not\nthe case. Here's my attempt to sort this out:\n\n- Rename the local variable to new_handle, the old aliasing with\n args->handle is just too dangerously confusing.\n\n- Merge the gem obj lookup with the two-stage idr_replace so that we\n avoid getting ourselves confused there.\n\n- This means we don't have a surplus temporary reference anymore, only\n an inherited from the idr. A concurrent gem_close on the new_handle\n could steal that. Fix that with the same two-stage approach\n create_tail uses. This is a bit overkill as documented in the comment,\n but I also don't trust my ability to understand this all correctly, so\n go with the established pattern we have from other ioctls instead for\n maximum paranoia.\n\n- Adjust error paths. I've tried to make the error and success paths\n common, because they are identical except for which handle is removed\n and on which we call idr_replace to (re)install the object again. But\n that made things messier to read, so I've left it at the more verbose\n version, which unfortunately hides the symmetry in the entire code\n flow a bit.\n\n- While at it, also replace the 7 space indent with 1 tab.\n\nAnd finally, because I flat out don't trust my abilities here at all\nanymore:\n\n- Disable the ioctl until we have the igt situation and everything else\n sorted out on-list and with full consensus.\n\nv2:\n\nSashiko noticed that I didn't handle the error path for idr_replace\ncorrectly, it must be checked with IS_ERR_OR_NULL like in\ngem_handle_delete. So yeah, definitely should just the existing paths\n1:1 because this is endless amounts of tricky.\n\nAlso add the Fixes: line for the original ioctl, I forgot that too."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.36", "versionStartIncluding": "6.18.32"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.0.13", "versionStartIncluding": "7.0.9"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:33:28.496Z"}}}, "cveMetadata": {"cveId": "CVE-2026-53145", "state": "PUBLISHED", "dateUpdated": "2026-10-19T19:57:25.538Z", "dateReserved": "2026-06-09T07:44:35.387Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-06-25T08:38:32.228Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943", "vulnerable": true}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D", "vulnerable": true}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "D65C2163-CFC2-4ABB-8F4E-CB09CEBD006C", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gem: Try to fix change_handle ioctl, attempt 4\n\n[airlied: just added some comments on how to reenable]\nOn-list because the cat is out of the bag and we're clearly not good\nenough to figure this out in private. The story thus far:\n\n5e28b7b94408 (\"drm: Set old handle to NULL before prime swap in\nchange_handle\") tried to fix a race condition between the gem_close and\ngem_change_handle ioctls, but got a few things wrong:\n\n- There's a confusion with the local variable handle, which is actually\n the new handle, and so the two-stage trick was actually applied to the\n wrong idr slot. 7164d78559b0 (\"drm/gem: fix race between\n change_handle and handle_delete\") tried to fix that by adding yet\n another code block, but forgot to add the error handling. Which meant\n we now have two paths, both kinda wrong.\n\n- dc366607c41c (\"drm: Replace old pointer to new idr\") tried to apply\n another fix, but inconsistently, again because of the handle confusion\n - this would be the right fix (kinda, somewhat, it's a mess) if we'd\n do the two-stage approach for the new handle. Except that wasn't the\n intent of the original fix.\n\nWe also didn't have an igt merged for the original ioctl, which is a big\nno-go. This was attempted to address off-list in the original bugfix,\nand amd QA people claimed the bug was fixed now. Very clearly that's not\nthe case. Here's my attempt to sort this out:\n\n- Rename the local variable to new_handle, the old aliasing with\n args->handle is just too dangerously confusing.\n\n- Merge the gem obj lookup with the two-stage idr_replace so that we\n avoid getting ourselves confused there.\n\n- This means we don't have a surplus temporary reference anymore, only\n an inherited from the idr. A concurrent gem_close on the new_handle\n could steal that. Fix that with the same two-stage approach\n create_tail uses. This is a bit overkill as documented in the comment,\n but I also don't trust my ability to understand this all correctly, so\n go with the established pattern we have from other ioctls instead for\n maximum paranoia.\n\n- Adjust error paths. I've tried to make the error and success paths\n common, because they are identical except for which handle is removed\n and on which we call idr_replace to (re)install the object again. But\n that made things messier to read, so I've left it at the more verbose\n version, which unfortunately hides the symmetry in the entire code\n flow a bit.\n\n- While at it, also replace the 7 space indent with 1 tab.\n\nAnd finally, because I flat out don't trust my abilities here at all\nanymore:\n\n- Disable the ioctl until we have the igt situation and everything else\n sorted out on-list and with full consensus.\n\nv2:\n\nSashiko noticed that I didn't handle the error path for idr_replace\ncorrectly, it must be checked with IS_ERR_OR_NULL like in\ngem_handle_delete. So yeah, definitely should just the existing paths\n1:1 because this is endless amounts of tricky.\n\nAlso add the Fixes: line for the original ioctl, I forgot that too."}], "id": "CVE-2026-53145", "lastModified": "2026-10-19T20:19:05.313", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-53145", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:25:55.352520Z", "version": "2.0.3"}}]}, "published": "2026-06-25T09:16:31.810", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1a4f03d22fb655e5f192244fb2c87d8066fcfca2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1d9b93df7fc768228906e24220591ec1cddad391"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c0639ede2f24ac224b2079cd35ecd5fd8ad4e3cd"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/security/cve/CVE-2026-53145"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "tags": ["Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492773"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "tags": ["Third Party Advisory"], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53145.json"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-367"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-367"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-367"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: drm/gem: Try to fix change_handle ioctl, attempt 4", "id": "2492773", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492773"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-367", "details": ["A flaw was found in the Linux kernel's Direct Rendering Manager (DRM) Graphics Execution Manager (GEM) subsystem. A race condition exists within the `change_handle` ioctl between `gem_close` and `gem_change_handle` operations. This could lead to incorrect handling of graphics memory, potentially resulting in system instability or unexpected behavior. The `change_handle` ioctl has been temporarily disabled to mitigate this issue."], "name": "CVE-2026-53145", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53145\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53145\nhttps://lore.kernel.org/linux-cve-announce/2026062545-CVE-2026-53145-8775@gregkh/T"], "threat_severity": "Important"}

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