{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-53356", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.400Z", "datePublished": "2026-07-01T13:32:31.428Z", "dateUpdated": "2026-10-16T15:31:48.296Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:35:05.605Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/gem: Fix phys BO pread/pwrite with offset\n\nsg_page() returns struct page pointer not (void *) so the scaling\nof pread/pwrite is wrong for phys BO and wrong parts of BO would be\naccessed if non-zero offset is used.\n\nLast impacted platform with overlay or cursor planes using phys\nmapping was Gen3/945G/Lakeport.\n\n(cherry picked from commit 3e49a2f85070b2fb672c1e0fdba281a4ea3aebe6)" } ], "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 path is reached through local DRM/i915 ioctls, specifically GEM pread/pwrite on a phys-backed buffer object. It is not reachable from network, adjacent, or physical device input.\nAC:L - Once on an affected legacy i915 platform with a phys-backed cursor/overlay BO, a nonzero offset reliably triggers the bad scaled pointer arithmetic. There is no race or attacker-external timing condition.\nPR:L - The attacker needs local access to the DRM device and enough ordinary DRM/KMS access to create and pin a framebuffer-backed GEM object, but not real root or CAP_SYS_ADMIN. The pread/pwrite ioctls themselves are render-allowed.\nUI:N - No victim action is required after the attacker has local DRM access. The attacker can issue the needed ioctls directly.\nS:U - The vulnerability is a kernel memory access bug reachable from a kernel driver ioctl path. It does not cross a separate security authority such as a VM host boundary.\nC:H - The faulty phys BO pread path can copy out-of-bounds kernel memory back to userspace. This is a high confidentiality impact because it can disclose kernel memory beyond the intended buffer.\nI:H - The faulty phys BO pwrite path can copy attacker-controlled data out of bounds into kernel memory relative to the coherent allocation. This is kernel memory corruption and can plausibly be leveraged for privilege escalation.\nA:H - The out-of-bounds read/write can corrupt or access invalid kernel memory and cause an oops, panic, or hang. Repeated triggering is possible through local ioctls on the affected object." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/i915/gem/i915_gem_phys.c" ], "versions": [ { "version": "c6790dc22312f592c1434577258b31c48c72d52a", "lessThan": "40f738991058eb3e3530c3006a5bd6fd5e29f035", "status": "affected", "versionType": "git" }, { "version": "c6790dc22312f592c1434577258b31c48c72d52a", "lessThan": "1ec8fc63e9cdb22da54e48e536c9204020416fc6", "status": "affected", "versionType": "git" }, { "version": "c6790dc22312f592c1434577258b31c48c72d52a", "lessThan": "14469860e2e39b7095dcd658d2bad38a11110a68", "status": "affected", "versionType": "git" }, { "version": "c6790dc22312f592c1434577258b31c48c72d52a", "lessThan": "07c33be968d9e0cab6cba38c81850a09942fcb2e", "status": "affected", "versionType": "git" }, { "version": "c6790dc22312f592c1434577258b31c48c72d52a", "lessThan": "3bd168dd835b93a3862cd05b0d13c432b115f9d6", "status": "affected", "versionType": "git" }, { "version": "c6790dc22312f592c1434577258b31c48c72d52a", "lessThan": "32d4c5d328a3ff995420f4f85163e1e403f43628", "status": "affected", "versionType": "git" }, { "version": "c6790dc22312f592c1434577258b31c48c72d52a", "lessThan": "dd51a2eeb93bc6faa892ff9083911dd23f82c187", "status": "affected", "versionType": "git" }, { "version": "c6790dc22312f592c1434577258b31c48c72d52a", "lessThan": "d21ad938398bca695a511307de38a65889e3b354", "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/i915/gem/i915_gem_phys.c" ], "versions": [ { "version": "5.7", "status": "affected" }, { "version": "0", "lessThan": "5.7", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.259", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.210", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.176", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.143", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.94", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.36", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0.13", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1", "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": "5.7", "versionEndExcluding": "5.10.259" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "5.15.210" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "6.1.176" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "6.6.143" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "6.12.94" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "6.18.36" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "7.0.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "7.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/40f738991058eb3e3530c3006a5bd6fd5e29f035" }, { "url": "https://git.kernel.org/stable/c/1ec8fc63e9cdb22da54e48e536c9204020416fc6" }, { "url": "https://git.kernel.org/stable/c/14469860e2e39b7095dcd658d2bad38a11110a68" }, { "url": "https://git.kernel.org/stable/c/07c33be968d9e0cab6cba38c81850a09942fcb2e" }, { "url": "https://git.kernel.org/stable/c/3bd168dd835b93a3862cd05b0d13c432b115f9d6" }, { "url": "https://git.kernel.org/stable/c/32d4c5d328a3ff995420f4f85163e1e403f43628" }, { "url": "https://git.kernel.org/stable/c/dd51a2eeb93bc6faa892ff9083911dd23f82c187" }, { "url": "https://git.kernel.org/stable/c/d21ad938398bca695a511307de38a65889e3b354" } ], "title": "drm/i915/gem: Fix phys BO pread/pwrite with offset", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-10-15T01:23:21.482Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [ { "status": "affected", "version": "0", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html" } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2026-53356", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2026-10-16T15:28:39.314714Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T15:31:48.296Z" } } ] } }