Description
In the Linux kernel, the following vulnerability has been resolved: net: marvell: prestera: fix NULL dereference on devlink_alloc() failure devlink_alloc() may return NULL on allocation failure, but prestera_devlink_alloc() unconditionally calls devlink_priv() on the returned pointer. This leads to a NULL pointer dereference if devlink allocation fails. Add a check for a NULL devlink pointer and return NULL early to avoid the crash.
Product status
34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 (git) before 8a4333b2818f0d853b43e139936c20659366e4a0
34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 (git) before 325aea74be7e192b5c947c782da23b0d19a5fda2
34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 (git) before 94e070cd50790317fba7787ae6006934b7edcb6f
34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 (git) before 3950054c9512add0cc79ab7e72b6d2f9f675e25b
34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 (git) before 326a4b7e61d01db3507f71c8bb5e85362f607064
34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 (git) before a428e0da1248c353557970848994f35fd3f005e2
5.10
Any version before 5.10
5.15.198 (semver)
6.1.161 (semver)
6.6.121 (semver)
6.12.66 (semver)
6.18.6 (semver)
6.19 (original_commit_for_fix)
References
git.kernel.org/...c/8a4333b2818f0d853b43e139936c20659366e4a0
git.kernel.org/...c/325aea74be7e192b5c947c782da23b0d19a5fda2
git.kernel.org/...c/94e070cd50790317fba7787ae6006934b7edcb6f
git.kernel.org/...c/3950054c9512add0cc79ab7e72b6d2f9f675e25b
git.kernel.org/...c/326a4b7e61d01db3507f71c8bb5e85362f607064
git.kernel.org/...c/a428e0da1248c353557970848994f35fd3f005e2