CVE-2026-43368

{"id": "CVE-2026-43368", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-43368", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:16:50.049391Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"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"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "0b62af28f249b9c4036a05acfb053058dc02e2e2", "lessThan": "aeb7255531ba4a5c3a64938577170d08b78de399", "versionType": "git"}, {"status": "affected", "version": "0b62af28f249b9c4036a05acfb053058dc02e2e2", "lessThan": "1c956f0fccc26fefcbb507516c49d1db41c40471", "versionType": "git"}, {"status": "affected", "version": "0b62af28f249b9c4036a05acfb053058dc02e2e2", "lessThan": "eae4bf4107571283031db96ce132e951615e2ae4", "versionType": "git"}, {"status": "affected", "version": "0b62af28f249b9c4036a05acfb053058dc02e2e2", "lessThan": "21a301f12d18797bf889c15497f922edfdaece3a", "versionType": "git"}, {"status": "affected", "version": "0b62af28f249b9c4036a05acfb053058dc02e2e2", "lessThan": "029ae067431ab9d0fca479bdabe780fa436706ea", "versionType": "git"}], "programFiles": ["drivers/gpu/drm/i915/gem/i915_gem_shmem.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.5"}, {"status": "unaffected", "version": "0", "lessThan": "6.5", "versionType": "semver"}, {"status": "unaffected", "version": "6.6.130", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.78", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.19", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.9", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/gpu/drm/i915/gem/i915_gem_shmem.c"], "defaultStatus": "affected"}]}], "published": "2026-05-08T15:16:47.840", "references": [{"url": "https://git.kernel.org/stable/c/029ae067431ab9d0fca479bdabe780fa436706ea", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/1c956f0fccc26fefcbb507516c49d1db41c40471", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/21a301f12d18797bf889c15497f922edfdaece3a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/aeb7255531ba4a5c3a64938577170d08b78de399", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/eae4bf4107571283031db96ce132e951615e2ae4", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-190"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: Fix potential overflow of shmem scatterlist length\n\nWhen a scatterlists table of a GEM shmem object of size 4 GB or more is\npopulated with pages allocated from a folio, unsigned int .length\nattribute of a scatterlist may get overflowed if total byte length of\npages allocated to that single scatterlist happens to reach or cross the\n4GB limit. As a consequence, users of the object may suffer from hitting\nunexpected, premature end of the object's backing pages.\n\n[278.780187] ------------[ cut here ]------------\n[278.780377] WARNING: CPU: 1 PID: 2326 at drivers/gpu/drm/i915/i915_mm.c:55 remap_sg+0x199/0x1d0 [i915]\n...\n[278.780654] CPU: 1 UID: 0 PID: 2326 Comm: gem_mmap_offset Tainted: G S U 6.17.0-rc1-CI_DRM_16981-ged823aaa0607+ #1 PREEMPT(voluntary)\n[278.780656] Tainted: [S]=CPU_OUT_OF_SPEC, [U]=USER\n[278.780658] Hardware name: Intel Corporation Meteor Lake Client Platform/MTL-P LP5x T3 RVP, BIOS MTLPFWI1.R00.3471.D91.2401310918 01/31/2024\n[278.780659] RIP: 0010:remap_sg+0x199/0x1d0 [i915]\n...\n[278.780786] Call Trace:\n[278.780787] <TASK>\n[278.780788] ? __apply_to_page_range+0x3e6/0x910\n[278.780795] ? __pfx_remap_sg+0x10/0x10 [i915]\n[278.780906] apply_to_page_range+0x14/0x30\n[278.780908] remap_io_sg+0x14d/0x260 [i915]\n[278.781013] vm_fault_cpu+0xd2/0x330 [i915]\n[278.781137] __do_fault+0x3a/0x1b0\n[278.781140] do_fault+0x322/0x640\n[278.781143] __handle_mm_fault+0x938/0xfd0\n[278.781150] handle_mm_fault+0x12c/0x300\n[278.781152] ? lock_mm_and_find_vma+0x4b/0x760\n[278.781155] do_user_addr_fault+0x2d6/0x8e0\n[278.781160] exc_page_fault+0x96/0x2c0\n[278.781165] asm_exc_page_fault+0x27/0x30\n...\n\nThat issue was apprehended by the author of a change that introduced it,\nand potential risk even annotated with a comment, but then never addressed.\n\nWhen adding folio pages to a scatterlist table, take care of byte length\nof any single scatterlist not exceeding max_segment.\n\n(cherry picked from commit 06249b4e691a75694c014a61708c007fb5755f60)"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/i915: Correcci\u00f3n de un posible desbordamiento de la longitud de scatterlist de shmem\n\nCuando una tabla de scatterlists de un objeto GEM shmem de tama\u00f1o 4 GB o m\u00e1s es poblada con p\u00e1ginas asignadas desde un folio, el atributo unsigned int .length de una scatterlist puede desbordarse si la longitud total en bytes de las p\u00e1ginas asignadas a esa \u00fanica scatterlist llega o supera el l\u00edmite de 4 GB. Como consecuencia, los usuarios del objeto pueden sufrir al encontrar un final inesperado y prematuro de las p\u00e1ginas de respaldo del objeto.\n\n[278.780187] ------------[ cortar aqu\u00ed ]------------\n[278.780377] ADVERTENCIA: CPU: 1 PID: 2326 en drivers/gpu/drm/i915/i915_mm.c:55 remap_sg+0x199/0x1d0 [i915]\n...\n[278.780654] CPU: 1 UID: 0 PID: 2326 Comm: gem_mmap_offset Tainted: G S U 6.17.0-rc1-CI_DRM_16981-ged823aaa0607+ #1 PREEMPT(voluntary)\n[278.780656] Tainted: [S]=CPU_FUERA_DE_ESPECIFICACI\u00d3N, [U]=USUARIO\n[278.780658] Nombre del hardware: Intel Corporation Meteor Lake Client Platform/MTL-P LP5x T3 RVP, BIOS MTLPFWI1.R00.3471.D91.2401310918 01/31/2024\n[278.780659] RIP: 0010:remap_sg+0x199/0x1d0 [i915]\n...\n[278.780786] Traza de Llamada:\n[278.780787] [TAREA]\n[278.780788] ? __apply_to_page_range+0x3e6/0x910\n[278.780795] ? __pfx_remap_sg+0x10/0x10 [i915]\n[278.780906] apply_to_page_range+0x14/0x30\n[278.780908] remap_io_sg+0x14d/0x260 [i915]\n[278.781013] vm_fault_cpu+0xd2/0x330 [i915]\n[278.781137] __do_fault+0x3a/0x1b0\n[278.781140] do_fault+0x322/0x640\n[278.781143] __handle_mm_fault+0x938/0xfd0\n[278.781150] handle_mm_fault+0x12c/0x300\n[278.781152] ? lock_mm_and_find_vma+0x4b/0x760\n[278.781155] do_user_addr_fault+0x2d6/0x8e0\n[278.781160] exc_page_fault+0x96/0x2c0\n[278.781165] asm_exc_page_fault+0x27/0x30\n...\n\nEse problema fue detectado por el autor de un cambio que lo introdujo, y el riesgo potencial incluso anotado con un comentario, pero luego nunca abordado.\n\nAl a\u00f1adir p\u00e1ginas de folio a una tabla de scatterlist, aseg\u00farese de que la longitud en bytes de cualquier scatterlist individual no exceda max_segment.\n\n(seleccionado de la confirmaci\u00f3n 06249b4e691a75694c014a61708c007fb5755f60)"}], "lastModified": "2026-11-11T20:10:00.273", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "424B60E1-5C36-40FF-9029-5E50093BEDA5", "versionEndExcluding": "6.6.130", "versionStartIncluding": "6.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "28D591F5-B196-4CC9-905C-DC80F116E7A8", "versionEndExcluding": "6.12.78", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D394AC60-6F28-435F-872A-CCDF384B8331", "versionEndExcluding": "6.18.19", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E825E7C3-FEAC-4FD3-8A81-78D7387948C9", "versionEndExcluding": "6.19.9", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F666C8D8-6538-46D4-B318-87610DE64C34"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}