{"id":"CVE-2026-23019","summary":"net: marvell: prestera: fix NULL dereference on devlink_alloc() failure","details":"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.","modified":"2026-04-02T13:11:46.060668Z","published":"2026-01-31T11:39:03.179Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23019.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/325aea74be7e192b5c947c782da23b0d19a5fda2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/326a4b7e61d01db3507f71c8bb5e85362f607064"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3950054c9512add0cc79ab7e72b6d2f9f675e25b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8a4333b2818f0d853b43e139936c20659366e4a0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/94e070cd50790317fba7787ae6006934b7edcb6f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a428e0da1248c353557970848994f35fd3f005e2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23019.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23019"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"34dd1710f5a3c9a7dc78e1ff6de69a19d407db25"},{"fixed":"8a4333b2818f0d853b43e139936c20659366e4a0"},{"fixed":"325aea74be7e192b5c947c782da23b0d19a5fda2"},{"fixed":"94e070cd50790317fba7787ae6006934b7edcb6f"},{"fixed":"3950054c9512add0cc79ab7e72b6d2f9f675e25b"},{"fixed":"326a4b7e61d01db3507f71c8bb5e85362f607064"},{"fixed":"a428e0da1248c353557970848994f35fd3f005e2"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23019.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.10.0"},{"fixed":"5.15.198"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.161"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.121"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.66"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23019.json"}}],"schema_version":"1.7.5"}