CVE-2024-40924

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This causes panic.\n\n[vsyrjala: Add TODO comment]\n(cherry picked from commit 51064d471c53dcc8eddd2333c3f1c1d9131ba36c)"}], "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 - Exploitation requires local access to the i915 DRM device node (`/dev/dri/card0`) via the ADDFB2 ioctl plus locally generated memory pressure and a suspend/resume cycle. There is no network-reachable path into `intel_dpt_create()`/`intel_dpt_resume()`.\nAC:L - The attacker controls every input: creating many DPT-backed framebuffers via ADDFB2 exhausts stolen memory to force the shrinkable shmem DPT path, anonymous memory allocation drives kswapd's `I915_SHRINK_ACTIVE` pass that evicts the DPT object, and logind lets an active local session initiate suspend/resume on demand, with unlimited retries.\nPR:L - An unprivileged local user with a graphical session holds an open primary DRM node (ADDFB2 has ioctl flags 0 \u2014 neither DRM_MASTER nor CAP_SYS_ADMIN is checked) and can allocate memory and request suspend; no root or capability is needed.\nUI:N - The bound framebuffer vma on the DPT vm's `bound_list` is the normal steady state of any running compositor, and the attacker can drive both the shrink and the suspend/resume itself via logind or the RTC wakealarm. No victim action is required.\nS:U - The dangling write and the resulting corruption are confined to the kernel's own address space and the same i915 device; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Corrupted/stale DPT page-table entries make the display engine fetch arbitrary physical pages for scanout, disclosing kernel and other-process memory, and the use-after-free write into reused vmalloc/ioremap space can be leveraged to expose memory contents.\nI:H - `dpt_insert_entries()` performs many 64-bit `writeq()` operations at an attacker-influenced index with attacker-influenced PTE values through a freed kernel mapping, a use-after-free/out-of-bounds write primitive usable for control-flow corruption once the VA range is reused.\nA:H - The fix commit states plainly that rewriting PTEs via the stale CPU mapping \"causes panic,\" and the related commit reports \"an immediate oops during hibernate,\" i.e. a full kernel crash on the resume path."}]}], "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_object.h"], "versions": [{"version": "0dc987b699ce4266450d407d6d79d41eab88c5d0", "lessThan": "327280149066f0e5f2e50356b5823f76dabfe86e", "status": "affected", "versionType": "git"}, {"version": "0dc987b699ce4266450d407d6d79d41eab88c5d0", "lessThan": "7a9883be3b98673333eec65c4a21cc18e60292eb", "status": "affected", "versionType": "git"}, {"version": "0dc987b699ce4266450d407d6d79d41eab88c5d0", "lessThan": "a2552020fb714ff357182c3c179abfac2289f84d", "status": "affected", "versionType": "git"}, {"version": "0dc987b699ce4266450d407d6d79d41eab88c5d0", "lessThan": "43e2b37e2ab660c3565d4cff27922bc70e79c3f1", "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_object.h"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.95", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.35", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.9.6", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10", "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": "6.0", "versionEndExcluding": "6.1.95"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.6.35"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.9.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.10"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/327280149066f0e5f2e50356b5823f76dabfe86e"}, {"url": "https://git.kernel.org/stable/c/7a9883be3b98673333eec65c4a21cc18e60292eb"}, {"url": "https://git.kernel.org/stable/c/a2552020fb714ff357182c3c179abfac2289f84d"}, {"url": "https://git.kernel.org/stable/c/43e2b37e2ab660c3565d4cff27922bc70e79c3f1"}], "title": "drm/i915/dpt: Make DPT object unshrinkable", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/327280149066f0e5f2e50356b5823f76dabfe86e", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/7a9883be3b98673333eec65c4a21cc18e60292eb", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/a2552020fb714ff357182c3c179abfac2289f84d", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/43e2b37e2ab660c3565d4cff27922bc70e79c3f1", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T21:57:53.715Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-40924", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T17:05:20.923051Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:33:03.482Z"}}]}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/i915/gem/i915_gem_object.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "327280149066f0e5f2e50356b5823f76dabfe86e", "status": "affected", "version": "0dc987b699ce4266450d407d6d79d41eab88c5d0", "versionType": "git"}, {"lessThan": "7a9883be3b98673333eec65c4a21cc18e60292eb", "status": "affected", "version": "0dc987b699ce4266450d407d6d79d41eab88c5d0", "versionType": "git"}, {"lessThan": "a2552020fb714ff357182c3c179abfac2289f84d", "status": "affected", "version": "0dc987b699ce4266450d407d6d79d41eab88c5d0", "versionType": "git"}, {"lessThan": "43e2b37e2ab660c3565d4cff27922bc70e79c3f1", "status": "affected", "version": "0dc987b699ce4266450d407d6d79d41eab88c5d0", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/i915/gem/i915_gem_object.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.0"}, {"lessThan": "6.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.95", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.35", "versionType": "semver"}, {"lessThanOrEqual": "6.9.*", "status": "unaffected", "version": "6.9.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.10", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "99A58421-1E52-4145-8F42-4FEF2DB3FDB7", "versionEndExcluding": "6.1.95", "versionStartIncluding": "6.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6F019D15-84C0-416B-8C57-7F51B68992F0", "versionEndExcluding": "6.6.35", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0ABBBA1D-F79D-4BDB-AA41-D1EDCC4A6975", "versionEndExcluding": "6.9.6", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*", "matchCriteriaId": "2EBB4392-5FA6-4DA9-9772-8F9C750109FA", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/dpt: Make DPT object unshrinkable\n\nIn some scenarios, the DPT object gets shrunk but\nthe actual framebuffer did not and thus its still\nthere on the DPT's vm->bound_list. Then it tries to\nrewrite the PTEs via a stale CPU mapping. This causes panic.\n\n[vsyrjala: Add TODO comment]\n(cherry picked from commit 51064d471c53dcc8eddd2333c3f1c1d9131ba36c)"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/i915/dpt: hacer que el objeto DPT no se pueda reducir. En algunos escenarios, el objeto DPT se reduce pero el framebuffer real no y, por lo tanto, sigue ah\u00ed en vm->bound_list del DPT. Luego intenta reescribir las PTE mediante una asignaci\u00f3n de CPU obsoleta. Esto provoca p\u00e1nico. [vsyrjala: Agregar comentario TODO] (seleccionado del commit 51064d471c53dcc8eddd2333c3f1c1d9131ba36c)"}], "id": "CVE-2024-40924", "lastModified": "2026-08-04T11:19:05.993", "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": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-40924", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T17:05:20.923051Z", "version": "2.0.3"}}]}, "published": "2024-07-12T13:15:15.277", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/327280149066f0e5f2e50356b5823f76dabfe86e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/43e2b37e2ab660c3565d4cff27922bc70e79c3f1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7a9883be3b98673333eec65c4a21cc18e60292eb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a2552020fb714ff357182c3c179abfac2289f84d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/327280149066f0e5f2e50356b5823f76dabfe86e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/43e2b37e2ab660c3565d4cff27922bc70e79c3f1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7a9883be3b98673333eec65c4a21cc18e60292eb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a2552020fb714ff357182c3c179abfac2289f84d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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{}