{"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":"2026-08-05T12:35:05.605Z"},"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"}}}}