{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-53388", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-17T14:54:09.737Z", "datePublished": "2025-09-18T13:33:31.385Z", "dateUpdated": "2026-08-05T09:13:51.568Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:13:51.568Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/mediatek: Clean dangling pointer on bind error path\n\nmtk_drm_bind() can fail, in which case drm_dev_put() is called,\ndestroying the drm_device object. However a pointer to it was still\nbeing held in the private object, and that pointer would be passed along\nto DRM in mtk_drm_sys_prepare() if a suspend were triggered at that\npoint, resulting in a panic. Clean the pointer when destroying the\nobject in the error path to prevent this from happening." } ], "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 dangling pointer is created in mtk_drm_bind() in the local Mediatek SoC DRM driver and consumed by mtk_drm_sys_prepare() on system sleep; there is no network or adjacent-protocol path into this component-master bind/PM path.\nAC:L - Once mtk_drm_bind() has failed (including common deferred-probe EPROBE_DEFER failures while components assemble), private->drm remains a non-NULL freed pointer and the next system suspend deterministically enters drm_mode_config_helper_suspend() on that object with no race the attacker must win.\nPR:L - On the primary MediaTek deployments (phones, Chromebooks, embedded), an ordinary local user can be present while opportunistic/autosleep suspend runs the vulnerable prepare callback; reaching this path does not require capabilities that are only available in the init user namespace.\nUI:N - After the bind error leaves the dangling pointer, system autosuspend or an attacker-driven sleep transition invokes mtk_drm_sys_prepare() without any separate victim action such as opening a file or plugging a device.\nS:U - The use-after-free corrupts kernel heap state within the host kernel's security authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - drm_dev_put() frees the kzalloc'd drm_device while private->drm still references it; suspend then reads many fields through that object (poll state, client suspend, atomic state), so heap reuse yields a use-after-free read primitive.\nI:H - The same freed drm_device is walked by drm_mode_config_helper_suspend()/drm_atomic_helper_suspend(), so spraying the reclaimed slab provides write and control-flow hijack primitives typical of large-object kernel UAFs.\nA:H - The fix commit and related KASAN reports document a kernel panic/oops when the dangling drm_device pointer is used on suspend/shutdown, which is a full availability loss." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/mediatek/mtk_drm_drv.c" ], "versions": [ { "version": "119f5173628aa7a0c3cf9db83460d40709e8241d", "lessThan": "9a48f99aa7bea15e0b1d8b0040c46b4792eddf3b", "status": "affected", "versionType": "git" }, { "version": "119f5173628aa7a0c3cf9db83460d40709e8241d", "lessThan": "a161f1d92aabb3b8463f752bdc3474dc3a5ec0e5", "status": "affected", "versionType": "git" }, { "version": "119f5173628aa7a0c3cf9db83460d40709e8241d", "lessThan": "6a89ddee1686a8872384aaa9f0bcfa6b675acd86", "status": "affected", "versionType": "git" }, { "version": "119f5173628aa7a0c3cf9db83460d40709e8241d", "lessThan": "49cf87919daeeeeeb9e924c39bdd9203af434461", "status": "affected", "versionType": "git" }, { "version": "119f5173628aa7a0c3cf9db83460d40709e8241d", "lessThan": "7b551a501fa714890e55bae73efede1185728d72", "status": "affected", "versionType": "git" }, { "version": "119f5173628aa7a0c3cf9db83460d40709e8241d", "lessThan": "f3887c771576c5d740c5c5b8bf654a8ab8020b7d", "status": "affected", "versionType": "git" }, { "version": "119f5173628aa7a0c3cf9db83460d40709e8241d", "lessThan": "36aa8c61af55675ed967900fbe5deb32d776f051", "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/mediatek/mtk_drm_drv.c" ], "versions": [ { "version": "4.7", "status": "affected" }, { "version": "0", "lessThan": "4.7", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.276", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.235", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.173", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.99", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.16", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.2.3", "lessThanOrEqual": "6.2.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.3", "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": "4.7", "versionEndExcluding": "4.19.276" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "5.4.235" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "5.10.173" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "5.15.99" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.1.16" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.2.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.3" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/9a48f99aa7bea15e0b1d8b0040c46b4792eddf3b" }, { "url": "https://git.kernel.org/stable/c/a161f1d92aabb3b8463f752bdc3474dc3a5ec0e5" }, { "url": "https://git.kernel.org/stable/c/6a89ddee1686a8872384aaa9f0bcfa6b675acd86" }, { "url": "https://git.kernel.org/stable/c/49cf87919daeeeeeb9e924c39bdd9203af434461" }, { "url": "https://git.kernel.org/stable/c/7b551a501fa714890e55bae73efede1185728d72" }, { "url": "https://git.kernel.org/stable/c/f3887c771576c5d740c5c5b8bf654a8ab8020b7d" }, { "url": "https://git.kernel.org/stable/c/36aa8c61af55675ed967900fbe5deb32d776f051" } ], "title": "drm/mediatek: Clean dangling pointer on bind error path", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2023-53388", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2026-01-14T18:58:21.448763Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-14T19:03:05.206Z" } } ] } }