CVE-2026-43368

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43368", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:56.005Z", "datePublished": "2026-05-08T14:21:20.500Z", "dateUpdated": "2026-10-19T19:16:27.757Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:27:31.468Z"}, "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)"}], "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 i915 GEM shmem path is reached through local DRM ioctls and mmap faults on an i915 render device, not via network or adjacent protocols.\nAC:L - An attacker can create a large GEM object and fault/bind it through normal i915 paths; there is no race or victim-controlled timing requirement, and uncertainty about allocator state is scored toward the higher-severity low-complexity value.\nPR:L - The relevant GEM create and mmap ioctls are marked DRM_RENDER_ALLOW and are reachable by a local user with render-node access, without CAP_SYS_ADMIN or DRM master privileges.\nUI:N - No victim action is required after the attacker has local access to the DRM device; the attacker triggers object creation, page population, and mmap/GPU use directly.\nS:U - The impact remains within the kernel/i915 security authority and does not cross a VM, IOMMU, or separate administrative boundary by itself.\nC:H - The overflow corrupts scatterlist length metadata for a user-controlled large object, and later i915 CPU/GPU mapping paths can consume the truncated table and potentially walk/use attacker-groomable scatterlist metadata. Under the required uncertainty rule, this is treated as a high-impact kernel/GPU memory disclosure primitive.\nI:H - The malformed scatterlist can feed GPU page-table or remapping paths with incorrect DMA addresses, plausibly allowing writes through GPU mappings to unintended memory. Under the required uncertainty rule, this is treated as high integrity impact.\nA:H - At minimum the bug can cause premature scatterlist termination leading to kernel warnings/errors, BUG/OOPS-class failures, GPU faults, hangs, or very large unreleased backing-page leaks when triggered repeatedly."}]}], "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_shmem.c"], "versions": [{"version": "0b62af28f249b9c4036a05acfb053058dc02e2e2", "lessThan": "aeb7255531ba4a5c3a64938577170d08b78de399", "status": "affected", "versionType": "git"}, {"version": "0b62af28f249b9c4036a05acfb053058dc02e2e2", "lessThan": "1c956f0fccc26fefcbb507516c49d1db41c40471", "status": "affected", "versionType": "git"}, {"version": "0b62af28f249b9c4036a05acfb053058dc02e2e2", "lessThan": "eae4bf4107571283031db96ce132e951615e2ae4", "status": "affected", "versionType": "git"}, {"version": "0b62af28f249b9c4036a05acfb053058dc02e2e2", "lessThan": "21a301f12d18797bf889c15497f922edfdaece3a", "status": "affected", "versionType": "git"}, {"version": "0b62af28f249b9c4036a05acfb053058dc02e2e2", "lessThan": "029ae067431ab9d0fca479bdabe780fa436706ea", "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_shmem.c"], "versions": [{"version": "6.5", "status": "affected"}, {"version": "0", "lessThan": "6.5", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.130", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.78", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.19", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.9", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.5", "versionEndExcluding": "6.6.130"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.12.78"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.18.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.19.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/aeb7255531ba4a5c3a64938577170d08b78de399"}, {"url": "https://git.kernel.org/stable/c/1c956f0fccc26fefcbb507516c49d1db41c40471"}, {"url": "https://git.kernel.org/stable/c/eae4bf4107571283031db96ce132e951615e2ae4"}, {"url": "https://git.kernel.org/stable/c/21a301f12d18797bf889c15497f922edfdaece3a"}, {"url": "https://git.kernel.org/stable/c/029ae067431ab9d0fca479bdabe780fa436706ea"}], "title": "drm/i915: Fix potential overflow of shmem scatterlist length", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-43368", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:16:50.049391Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-190", "description": "CWE-190 Integer Overflow or Wraparound"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T19:16:27.757Z"}}]}}

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Under the required uncertainty rule, this is treated as a high-impact kernel/GPU memory disclosure primitive.\nI:H - The malformed scatterlist can feed GPU page-table or remapping paths with incorrect DMA addresses, plausibly allowing writes through GPU mappings to unintended memory. Under the required uncertainty rule, this is treated as high integrity impact.\nA:H - At minimum the bug can cause premature scatterlist termination leading to kernel warnings/errors, BUG/OOPS-class failures, GPU faults, hangs, or very large unreleased backing-page leaks when triggered repeatedly."}]}], "affected": [{"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"}], "references": [{"url": "https://git.kernel.org/stable/c/aeb7255531ba4a5c3a64938577170d08b78de399"}, {"url": "https://git.kernel.org/stable/c/1c956f0fccc26fefcbb507516c49d1db41c40471"}, {"url": "https://git.kernel.org/stable/c/eae4bf4107571283031db96ce132e951615e2ae4"}, {"url": "https://git.kernel.org/stable/c/21a301f12d18797bf889c15497f922edfdaece3a"}, {"url": "https://git.kernel.org/stable/c/029ae067431ab9d0fca479bdabe780fa436706ea"}], "x_generator": {"engine": "bippy-1.2.0"}, "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)"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.130", "versionStartIncluding": "6.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.78", "versionStartIncluding": "6.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.19", "versionStartIncluding": "6.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.19.9", "versionStartIncluding": "6.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.0", "versionStartIncluding": "6.5"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:27:31.468Z"}}}, "cveMetadata": {"cveId": "CVE-2026-43368", "state": "PUBLISHED", "dateUpdated": "2026-10-19T19:16:27.757Z", "dateReserved": "2026-05-01T14:12:56.005Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-05-08T14:21:20.500Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/i915/gem/i915_gem_shmem.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "aeb7255531ba4a5c3a64938577170d08b78de399", "status": "affected", "version": "0b62af28f249b9c4036a05acfb053058dc02e2e2", "versionType": "git"}, {"lessThan": "1c956f0fccc26fefcbb507516c49d1db41c40471", "status": "affected", "version": "0b62af28f249b9c4036a05acfb053058dc02e2e2", "versionType": "git"}, {"lessThan": "eae4bf4107571283031db96ce132e951615e2ae4", "status": "affected", "version": "0b62af28f249b9c4036a05acfb053058dc02e2e2", "versionType": "git"}, {"lessThan": "21a301f12d18797bf889c15497f922edfdaece3a", "status": "affected", "version": "0b62af28f249b9c4036a05acfb053058dc02e2e2", "versionType": "git"}, {"lessThan": "029ae067431ab9d0fca479bdabe780fa436706ea", "status": "affected", "version": "0b62af28f249b9c4036a05acfb053058dc02e2e2", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/i915/gem/i915_gem_shmem.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.5"}, {"lessThan": "6.5", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.130", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.78", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.19", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "424B60E1-5C36-40FF-9029-5E50093BEDA5", "versionEndExcluding": "6.6.130", "versionStartIncluding": "6.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "28D591F5-B196-4CC9-905C-DC80F116E7A8", "versionEndExcluding": "6.12.78", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D394AC60-6F28-435F-872A-CCDF384B8331", "versionEndExcluding": "6.18.19", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E825E7C3-FEAC-4FD3-8A81-78D7387948C9", "versionEndExcluding": "6.19.9", "versionStartIncluding": "6.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*", "matchCriteriaId": "4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*", "matchCriteriaId": "F666C8D8-6538-46D4-B318-87610DE64C34", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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)"}], "id": "CVE-2026-43368", "lastModified": "2026-11-11T20:10:00.273", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-43368", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:16:50.049391Z", "version": "2.0.3"}}]}, "published": "2026-05-08T15:16:47.840", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/029ae067431ab9d0fca479bdabe780fa436706ea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1c956f0fccc26fefcbb507516c49d1db41c40471"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/21a301f12d18797bf889c15497f922edfdaece3a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aeb7255531ba4a5c3a64938577170d08b78de399"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/eae4bf4107571283031db96ce132e951615e2ae4"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-190"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: drm/i915: Fix potential overflow of shmem scatterlist length", "id": "2468192", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468192"}, "csaw": false, "cwe": "CWE-190", "details": ["A flaw was found in the Linux kernel's graphics memory management (drm/i915) component. This vulnerability occurs when a large shared memory object's internal list of memory segments, called a scatterlist, is populated. If the total size of these segments exceeds 4 Gigabytes (GB), a numerical overflow can happen in the length calculation. This issue can cause applications using the affected memory to encounter unexpected errors, potentially leading to system instability or a denial of service."], "name": "CVE-2026-43368", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43368\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43368\nhttps://lore.kernel.org/linux-cve-announce/2026050828-CVE-2026-43368-83b4@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0b62af28f249b9c4036a05acfb053058dc02e2e2,aeb7255531ba4a5c3a64938577170d08b78de399)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0b62af28f249b9c4036a05acfb053058dc02e2e2,1c956f0fccc26fefcbb507516c49d1db41c40471)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0b62af28f249b9c4036a05acfb053058dc02e2e2,eae4bf4107571283031db96ce132e951615e2ae4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0b62af28f249b9c4036a05acfb053058dc02e2e2,21a301f12d18797bf889c15497f922edfdaece3a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0b62af28f249b9c4036a05acfb053058dc02e2e2,029ae067431ab9d0fca479bdabe780fa436706ea)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.5"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.5)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.130,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.78,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.19,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.9,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-08T16:15:12.712472+00:00", "updated": "2026-05-15T16:30:03.924868+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}