{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23019", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:45.940Z", "datePublished": "2026-01-31T11:39:03.179Z", "dateUpdated": "2026-01-31T11:39:03.179Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-01-31T11:39:03.179Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: marvell: prestera: fix NULL dereference on devlink_alloc() failure\n\ndevlink_alloc() may return NULL on allocation failure, but\nprestera_devlink_alloc() unconditionally calls devlink_priv() on\nthe returned pointer.\n\nThis leads to a NULL pointer dereference if devlink allocation fails.\nAdd a check for a NULL devlink pointer and return NULL early to avoid\nthe crash."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/marvell/prestera/prestera_devlink.c"], "versions": [{"version": "34dd1710f5a3c9a7dc78e1ff6de69a19d407db25", "lessThan": "8a4333b2818f0d853b43e139936c20659366e4a0", "status": "affected", "versionType": "git"}, {"version": "34dd1710f5a3c9a7dc78e1ff6de69a19d407db25", "lessThan": "325aea74be7e192b5c947c782da23b0d19a5fda2", "status": "affected", "versionType": "git"}, {"version": "34dd1710f5a3c9a7dc78e1ff6de69a19d407db25", "lessThan": "94e070cd50790317fba7787ae6006934b7edcb6f", "status": "affected", "versionType": "git"}, {"version": "34dd1710f5a3c9a7dc78e1ff6de69a19d407db25", "lessThan": "3950054c9512add0cc79ab7e72b6d2f9f675e25b", "status": "affected", "versionType": "git"}, {"version": "34dd1710f5a3c9a7dc78e1ff6de69a19d407db25", "lessThan": "326a4b7e61d01db3507f71c8bb5e85362f607064", "status": "affected", "versionType": "git"}, {"version": "34dd1710f5a3c9a7dc78e1ff6de69a19d407db25", "lessThan": "a428e0da1248c353557970848994f35fd3f005e2", "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/net/ethernet/marvell/prestera/prestera_devlink.c"], "versions": [{"version": "5.10", "status": "affected"}, {"version": "0", "lessThan": "5.10", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.198", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.161", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.121", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.66", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.6", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19-rc5", "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": "5.10", "versionEndExcluding": "5.15.198"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.1.161"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.6.121"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.12.66"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.18.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.19-rc5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8a4333b2818f0d853b43e139936c20659366e4a0"}, {"url": "https://git.kernel.org/stable/c/325aea74be7e192b5c947c782da23b0d19a5fda2"}, {"url": "https://git.kernel.org/stable/c/94e070cd50790317fba7787ae6006934b7edcb6f"}, {"url": "https://git.kernel.org/stable/c/3950054c9512add0cc79ab7e72b6d2f9f675e25b"}, {"url": "https://git.kernel.org/stable/c/326a4b7e61d01db3507f71c8bb5e85362f607064"}, {"url": "https://git.kernel.org/stable/c/a428e0da1248c353557970848994f35fd3f005e2"}], "title": "net: marvell: prestera: fix NULL dereference on devlink_alloc() failure", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: marvell: prestera: fix NULL dereference on devlink_alloc() failure\n\ndevlink_alloc() may return NULL on allocation failure, but\nprestera_devlink_alloc() unconditionally calls devlink_priv() on\nthe returned pointer.\n\nThis leads to a NULL pointer dereference if devlink allocation fails.\nAdd a check for a NULL devlink pointer and return NULL early to avoid\nthe crash."}], "id": "CVE-2026-23019", "lastModified": "2026-01-31T12:16:05.207", "metrics": {}, "published": "2026-01-31T12:16:05.207", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/325aea74be7e192b5c947c782da23b0d19a5fda2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/326a4b7e61d01db3507f71c8bb5e85362f607064"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3950054c9512add0cc79ab7e72b6d2f9f675e25b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8a4333b2818f0d853b43e139936c20659366e4a0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/94e070cd50790317fba7787ae6006934b7edcb6f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a428e0da1248c353557970848994f35fd3f005e2"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}