{"id":"CVE-2026-23019","revision":"992c1f4a612e48ee92e4ee26846c2cbf","records":[{"revision":"992c1f4a612e48ee92e4ee26846c2cbf","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-23019","aliases":[],"title":"net: marvell: prestera: fix NULL dereference on devlink_alloc() failure","description":"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.","state":0,"publishedAt":"2026-01-31T11:39:03.179+00:00","modifiedAt":"2026-10-15T01:12:39.774+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/marvell/prestera/prestera_devlink.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"34dd1710f5a3c9a7dc78e1ff6de69a19d407db25\",\n                            \"lessThan\": \"8a4333b2818f0d853b43e139936c20659366e4a0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"34dd1710f5a3c9a7dc78e1ff6de69a19d407db25\",\n                            \"lessThan\": \"325aea74be7e192b5c947c782da23b0d19a5fda2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"34dd1710f5a3c9a7dc78e1ff6de69a19d407db25\",\n                            \"lessThan\": \"94e070cd50790317fba7787ae6006934b7edcb6f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"34dd1710f5a3c9a7dc78e1ff6de69a19d407db25\",\n                            \"lessThan\": \"3950054c9512add0cc79ab7e72b6d2f9f675e25b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"34dd1710f5a3c9a7dc78e1ff6de69a19d407db25\",\n                            \"lessThan\": \"326a4b7e61d01db3507f71c8bb5e85362f607064\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"34dd1710f5a3c9a7dc78e1ff6de69a19d407db25\",\n                            \"lessThan\": \"a428e0da1248c353557970848994f35fd3f005e2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/marvell/prestera/prestera_devlink.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.10\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.10\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.198\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.161\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.121\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.66\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.6\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/8a4333b2818f0d853b43e139936c20659366e4a0","https://git.kernel.org/stable/c/325aea74be7e192b5c947c782da23b0d19a5fda2","https://git.kernel.org/stable/c/94e070cd50790317fba7787ae6006934b7edcb6f","https://git.kernel.org/stable/c/3950054c9512add0cc79ab7e72b6d2f9f675e25b","https://git.kernel.org/stable/c/326a4b7e61d01db3507f71c8bb5e85362f607064","https://git.kernel.org/stable/c/a428e0da1248c353557970848994f35fd3f005e2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23019","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-23019","identifiers":["CVE-2026-23019"]},"retained":false,"historicalAffected":[]}],"coverage":[]}