CVE-2026-43289

{"id": "CVE-2026-43289", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-43289", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-06T15:33:32.901478Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "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": "f368aed4827bd4276c0e3664fb2cb815a8d7caf3", "lessThan": "027797595a108726f4a0a45d225f603b0ffbd22b", "versionType": "git"}, {"status": "affected", "version": "d38e051ec6fd8650b139d9bc4b0b8b261953b263", "lessThan": "1737d37ae1d2814e6cf0a1af87af3d41f0812b95", "versionType": "git"}, {"status": "affected", "version": "013027918a4efa807409fcb356009c117e4d181a", "lessThan": "f736032c638a33a243e9126e617788f763d648f9", "versionType": "git"}, {"status": "affected", "version": "8652d44f466ad5772e7d1756e9457046189b0dfc", "lessThan": "cfccd3b8c51bc57a8a6fcb2fd30453afae5bc0d2", "versionType": "git"}, {"status": "affected", "version": "8652d44f466ad5772e7d1756e9457046189b0dfc", "lessThan": "875355152b33436907c2a6d2ffad1431fa86c62b", "versionType": "git"}, {"status": "affected", "version": "8652d44f466ad5772e7d1756e9457046189b0dfc", "lessThan": "36eb314184a0ae74dd42914b47d2b9fc43be8034", "versionType": "git"}, {"status": "affected", "version": "8652d44f466ad5772e7d1756e9457046189b0dfc", "lessThan": "5226570bd252cea2e805a161cb0f75c204c3108a", "versionType": "git"}, {"status": "affected", "version": "8652d44f466ad5772e7d1756e9457046189b0dfc", "lessThan": "480e1d5c64bb14441f79f2eb9421d5e26f91ea3d", "versionType": "git"}, {"status": "affected", "version": "4947a0eb7d642b6048559857964966016ef3aa8b", "versionType": "git"}, {"status": "affected", "version": "b16bf76b382810257e3fb6278663a9d131b70197", "versionType": "git"}, {"status": "affected", "version": "cb1638618545182a01444b2b20a4ed6b9d2a8c8f", "versionType": "git"}, {"status": "affected", "version": "5.10.185", "lessThan": "5.10.252", "versionType": "semver"}, {"status": "affected", "version": "5.15.118", "lessThan": "5.15.202", "versionType": "semver"}, {"status": "affected", "version": "6.1.35", "lessThan": "6.1.165", "versionType": "semver"}, {"status": "affected", "version": "4.19.287", "lessThan": "4.20", "versionType": "semver"}, {"status": "affected", "version": "5.4.248", "lessThan": "5.5", "versionType": "semver"}, {"status": "affected", "version": "6.3.9", "lessThan": "6.4", "versionType": "semver"}], "programFiles": ["kernel/kexec_file.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.4"}, {"status": "unaffected", "version": "0", "lessThan": "6.4", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.252", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.202", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.165", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.128", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.75", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.16", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.6", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["kernel/kexec_file.c"], "defaultStatus": "affected"}]}], "published": "2026-05-08T14:16:35.867", "references": [{"url": "https://git.kernel.org/stable/c/027797595a108726f4a0a45d225f603b0ffbd22b", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/1737d37ae1d2814e6cf0a1af87af3d41f0812b95", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/36eb314184a0ae74dd42914b47d2b9fc43be8034", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/480e1d5c64bb14441f79f2eb9421d5e26f91ea3d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5226570bd252cea2e805a161cb0f75c204c3108a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/875355152b33436907c2a6d2ffad1431fa86c62b", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/cfccd3b8c51bc57a8a6fcb2fd30453afae5bc0d2", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f736032c638a33a243e9126e617788f763d648f9", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nkexec: derive purgatory entry from symbol\n\nkexec_load_purgatory() derives image->start by locating e_entry inside an\nSHF_EXECINSTR section. If the purgatory object contains multiple\nexecutable sections with overlapping sh_addr, the entrypoint check can\nmatch more than once and trigger a WARN.\n\nDerive the entry section from the purgatory_start symbol when present and\ncompute image->start from its final placement. Keep the existing e_entry\nfallback for purgatories that do not expose the symbol.\n\nWARNING: kernel/kexec_file.c:1009 at kexec_load_purgatory+0x395/0x3c0, CPU#10: kexec/1784\nCall Trace:\n <TASK>\n bzImage64_load+0x133/0xa00\n __do_sys_kexec_file_load+0x2b3/0x5c0\n do_syscall_64+0x81/0x610\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\n[me@linux.beauty: move helper to avoid forward declaration, per Baoquan]"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nkexec: derivar la entrada del purgatorio del s\u00edmbolo\n\nkexec_load_purgatory() deriva image -> start localizando e_entry dentro de una secci\u00f3n SHF_EXECINSTR. Si el objeto purgatorio contiene m\u00faltiples secciones ejecutables con sh_addr superpuestas, la comprobaci\u00f3n del punto de entrada puede coincidir m\u00e1s de una vez y activar una WARN.\n\nDerivar la secci\u00f3n de entrada del s\u00edmbolo purgatory_start cuando est\u00e9 presente y calcular image -> start a partir de su ubicaci\u00f3n final. Mantener la alternativa e_entry existente para los purgatorios que no exponen el s\u00edmbolo.\n\nADVERTENCIA: kernel/kexec_file.c:1009 en kexec_load_purgatory+0x395/0x3c0, CPU#10: kexec/1784\nTraza de Llamada:\n [TAREA]\n bzImage64_load+0x133/0xa00\n __do_sys_kexec_file_load+0x2b3/0x5c0\n do_syscall_64+0x81/0x610\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\n[me@linux.beauty: mover la funci\u00f3n auxiliar para evitar la declaraci\u00f3n anticipada, seg\u00fan Baoquan]"}], "lastModified": "2026-11-11T20:10:00.273", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5245350E-E545-446D-A6C0-2E989F3977CB", "versionEndExcluding": "4.20", "versionStartIncluding": "4.19.287"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DB73E6A2-799F-4F3F-A41F-D941488D5BBE", "versionEndExcluding": "5.5", "versionStartIncluding": "5.4.248"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8E1F0730-BAF8-4DD0-8073-01A6332378F0", "versionEndExcluding": "5.10.252", "versionStartIncluding": "5.10.185"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "33D0D77E-AD7A-466B-AD8C-882989B55DA0", "versionEndExcluding": "5.15.202", "versionStartIncluding": "5.15.118"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8E377CC8-FB48-457F-B230-4ED66CC1635A", "versionEndExcluding": "6.1.165", "versionStartIncluding": "6.1.35"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0F0AC27C-C1AB-49CF-A549-0BF7D8370313", "versionEndExcluding": "6.4", "versionStartIncluding": "6.3.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "ED949C60-54E9-4E38-BCA0-CA3FD1F24C5B", "versionEndExcluding": "6.6.128", "versionStartIncluding": "6.4.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BCE16369-98ED-41CF-8995-DFDC10B288D2", "versionEndExcluding": "6.12.75", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B", "versionEndExcluding": "6.18.16", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67", "versionEndExcluding": "6.19.6", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.4:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DE0B0BF6-0EEF-4FAD-927D-7A0DD77BEE75"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.4:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1D6CAA59-F0EF-4E0B-8C23-EC9535008572"}, {"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"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "02259FDA-961B-47BC-AE7F-93D7EC6E90C2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "58A9FEFF-C040-420D-8F0A-BFDAAA1DF258"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1D2315C0-D46F-4F85-9754-F9E5E11374A6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "512EE3A8-A590-4501-9A94-5D4B268D6138"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}