{"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":"2026-05-11T21:58:25.953Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:58:25.953Z"},"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","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"}]}]}],"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"}}}}