CVE-2025-71274

{"id": "CVE-2025-71274", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-71274", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:06:16.861984Z"}}], "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}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.0}]}, "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": "39e47767ec9b22f844c2a07c9d329256960d4021", "lessThan": "392c6b68334aa0e0ae9aba95c0a366bcb0d92f5d", "versionType": "git"}, {"status": "affected", "version": "39e47767ec9b22f844c2a07c9d329256960d4021", "lessThan": "d66b8074c555e8abb0ae19eea1c9f3635498bdde", "versionType": "git"}, {"status": "affected", "version": "39e47767ec9b22f844c2a07c9d329256960d4021", "lessThan": "47615557447185917afa432b7958f87583c417cb", "versionType": "git"}, {"status": "affected", "version": "39e47767ec9b22f844c2a07c9d329256960d4021", "lessThan": "90c8353f471821d7ccd4fe573a2402e056192494", "versionType": "git"}, {"status": "affected", "version": "39e47767ec9b22f844c2a07c9d329256960d4021", "lessThan": "7654e6e3cd6bdee9602f6063b3c670bd556d7e61", "versionType": "git"}, {"status": "affected", "version": "39e47767ec9b22f844c2a07c9d329256960d4021", "lessThan": "2e4a70f3c30910427e5ea848b799066d67b963d5", "versionType": "git"}, {"status": "affected", "version": "39e47767ec9b22f844c2a07c9d329256960d4021", "lessThan": "954557957177c3c13d7c655976665b1170da5e50", "versionType": "git"}, {"status": "affected", "version": "39e47767ec9b22f844c2a07c9d329256960d4021", "lessThan": "42023d4b6d2661a40ee2dcf7e1a3528a35c638ca", "versionType": "git"}], "programFiles": ["drivers/rpmsg/rpmsg_core.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.18"}, {"status": "unaffected", "version": "0", "lessThan": "4.18", "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": ["drivers/rpmsg/rpmsg_core.c"], "defaultStatus": "affected"}]}], "published": "2026-05-06T12:16:27.447", "references": [{"url": "https://git.kernel.org/stable/c/2e4a70f3c30910427e5ea848b799066d67b963d5", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/392c6b68334aa0e0ae9aba95c0a366bcb0d92f5d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/42023d4b6d2661a40ee2dcf7e1a3528a35c638ca", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/47615557447185917afa432b7958f87583c417cb", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7654e6e3cd6bdee9602f6063b3c670bd556d7e61", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/90c8353f471821d7ccd4fe573a2402e056192494", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/954557957177c3c13d7c655976665b1170da5e50", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d66b8074c555e8abb0ae19eea1c9f3635498bdde", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-362"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-362"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrpmsg: core: fix race in driver_override_show() and use core helper\n\nThe driver_override_show function reads the driver_override string\nwithout holding the device_lock. However, the store function modifies\nand frees the string while holding the device_lock. This creates a race\ncondition where the string can be freed by the store function while\nbeing read by the show function, leading to a use-after-free.\n\nTo fix this, replace the rpmsg_string_attr macro with explicit show and\nstore functions. The new driver_override_store uses the standard\ndriver_set_override helper. Since the introduction of\ndriver_set_override, the comments in include/linux/rpmsg.h have stated\nthat this helper must be used to set or clear driver_override, but the\nimplementation was not updated until now.\n\nBecause driver_set_override modifies and frees the string while holding\nthe device_lock, the new driver_override_show now correctly holds the\ndevice_lock during the read operation to prevent the race.\n\nAdditionally, since rpmsg_string_attr has only ever been used for\ndriver_override, removing the macro simplifies the code."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nrpmsg: core: corregir condici\u00f3n de carrera en driver_override_show() y usar la funci\u00f3n auxiliar del core\n\nLa funci\u00f3n driver_override_show lee la cadena driver_override sin mantener el device_lock. Sin embargo, la funci\u00f3n store modifica y libera la cadena mientras mantiene el device_lock. Esto crea una condici\u00f3n de carrera donde la cadena puede ser liberada por la funci\u00f3n store mientras es le\u00edda por la funci\u00f3n show, lo que lleva a un uso despu\u00e9s de liberaci\u00f3n.\n\nPara solucionar esto, reemplace la macro rpmsg_string_attr con funciones show y store expl\u00edcitas. La nueva driver_override_store utiliza la funci\u00f3n auxiliar est\u00e1ndar driver_set_override. Desde la introducci\u00f3n de driver_set_override, los comentarios en include/linux/rpmsg.h han indicado que esta funci\u00f3n auxiliar debe ser utilizada para establecer o borrar driver_override, pero la implementaci\u00f3n no fue actualizada hasta ahora.\n\nDebido a que driver_set_override modifica y libera la cadena mientras mantiene el device_lock, la nueva driver_override_show ahora mantiene correctamente el device_lock durante la operaci\u00f3n de lectura para prevenir la condici\u00f3n de carrera.\n\nAdem\u00e1s, dado que rpmsg_string_attr solo ha sido utilizada para driver_override, eliminar la macro simplifica el c\u00f3digo."}], "lastModified": "2026-10-19T19:17:18.423", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "90CED5DE-987F-4B30-AABF-64E292D6F3B5", "versionEndExcluding": "5.10.252", "versionStartIncluding": "4.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4002FC2B-1456-4666-B240-0EBF590C4671", "versionEndExcluding": "5.15.202", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "797C7F46-D0BE-4FB8-A502-C5EF8E6B6654", "versionEndExcluding": "6.1.165", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "851E9353-6C09-4CC9-877E-E09DB164A3C2", "versionEndExcluding": "6.6.128", "versionStartIncluding": "6.2"}, {"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"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}