CVE-2026-46305

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46305", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.111Z", "datePublished": "2026-06-08T15:46:32.831Z", "dateUpdated": "2026-09-14T11:58:25.835Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-14T11:58:25.835Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc\n\nThe return value of kzalloc_flex() is used without\nensuring that the allocation succeeded, and the\npointer is dereferenced unconditionally.\n\nGuard the access to the allocated structure to\navoid a potential NULL pointer dereference if the\nallocation fails."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/staging/rtl8723bs/os_dep/osdep_service.c"], "versions": [{"version": "368f19a5ed15f396db4ec2182c1311a7fa4f993b", "lessThan": "7d4024037ee309a8f0cb86b4093d59da0e135db8", "status": "affected", "versionType": "git"}, {"version": "980cd426a25747daf8ed25e2a1904b2d26ffbb3d", "lessThan": "0a5f411becfb7c57aa89827213d31ef23a03d75a", "status": "affected", "versionType": "git"}, {"version": "980cd426a25747daf8ed25e2a1904b2d26ffbb3d", "lessThan": "bc851db06045a40c18233dd76ef0562d7f8bb6db", "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/staging/rtl8723bs/os_dep/osdep_service.c"], "versions": [{"version": "7.0", "status": "affected"}, {"version": "0", "lessThan": "7.0", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.7", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "7.0", "versionEndExcluding": "7.0.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.0", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/7d4024037ee309a8f0cb86b4093d59da0e135db8"}, {"url": "https://git.kernel.org/stable/c/0a5f411becfb7c57aa89827213d31ef23a03d75a"}, {"url": "https://git.kernel.org/stable/c/bc851db06045a40c18233dd76ef0562d7f8bb6db"}], "title": "staging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/staging/rtl8723bs/os_dep/osdep_service.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "7d4024037ee309a8f0cb86b4093d59da0e135db8", "status": "affected", "version": "368f19a5ed15f396db4ec2182c1311a7fa4f993b", "versionType": "git"}, {"lessThan": "0a5f411becfb7c57aa89827213d31ef23a03d75a", "status": "affected", "version": "980cd426a25747daf8ed25e2a1904b2d26ffbb3d", "versionType": "git"}, {"lessThan": "bc851db06045a40c18233dd76ef0562d7f8bb6db", "status": "affected", "version": "980cd426a25747daf8ed25e2a1904b2d26ffbb3d", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/staging/rtl8723bs/os_dep/osdep_service.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.0"}, {"lessThan": "7.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.7", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FD366C5A-E83E-40D3-BB82-BD3DEB7815B6", "versionEndExcluding": "7.0.7", "versionStartIncluding": "7.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*", "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc\n\nThe return value of kzalloc_flex() is used without\nensuring that the allocation succeeded, and the\npointer is dereferenced unconditionally.\n\nGuard the access to the allocated structure to\navoid a potential NULL pointer dereference if the\nallocation fails."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nstaging: rtl8723bs: os_dep: evitar la desreferencia de puntero NULL en rtw_cbuf_alloc\n\nEl valor de retorno de kzalloc_flex() se utiliza sin asegurar que la asignaci\u00f3n haya tenido \u00e9xito, y el puntero es desreferenciado incondicionalmente.\n\nProteger el acceso a la estructura asignada para evitar una potencial desreferencia de puntero NULL si la asignaci\u00f3n falla."}], "id": "CVE-2026-46305", "lastModified": "2026-09-14T12:17:42.407", "metrics": {"cvssMetricV31": [{"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"}]}, "published": "2026-06-08T17:16:49.253", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0a5f411becfb7c57aa89827213d31ef23a03d75a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7d4024037ee309a8f0cb86b4093d59da0e135db8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bc851db06045a40c18233dd76ef0562d7f8bb6db"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: staging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc", "id": "2486439", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2486439"}, "csaw": false, "cwe": "CWE-476", "details": ["A flaw was found in the Linux kernel, specifically within the `rtl8723bs` staging driver's `os_dep` module. The `rtw_cbuf_alloc` function does not properly validate the return value of a memory allocation, leading to an unconditional dereference of a potentially NULL pointer. This vulnerability could allow a local attacker to cause a denial of service (DoS) by triggering a system crash."], "name": "CVE-2026-46305", "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": "2026-06-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46305\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46305\nhttps://lore.kernel.org/linux-cve-announce/2026060800-CVE-2026-46305-d3f2@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[980cd426a25747daf8ed25e2a1904b2d26ffbb3d,0a5f411becfb7c57aa89827213d31ef23a03d75a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[980cd426a25747daf8ed25e2a1904b2d26ffbb3d,bc851db06045a40c18233dd76ef0562d7f8bb6db)"}}], "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": "7.0"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.7,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1-rc3,*]"}}], "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": "2026-06-08T18:45:26.860428+00:00", "updated": "2026-08-13T20:45:02.478811+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}