Description
In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Fix RSS context delete logic We need to free the corresponding RSS context VNIC in FW everytime an RSS context is deleted in driver. Commit 667ac333dbb7 added a check to delete the VNIC in FW only when netif_running() is true to help delete RSS contexts with interface down. Having that condition will make the driver leak VNICs in FW whenever close() happens with active RSS contexts. On the subsequent open(), as part of RSS context restoration, we will end up trying to create extra VNICs for which we did not make any reservation. FW can fail this request, thereby making us lose active RSS contexts. Suppose an RSS context is deleted already and we try to process a delete request again, then the HWRM functions will check for validity of the request and they simply return if the resource is already freed. So, even for delete-when-down cases, netif_running() check is not necessary. Remove the netif_running() condition check when deleting an RSS context.
Product status
667ac333dbb7e265b3f5bc4bc94e236f64682c86 (git) before 348a5f8d06c7bdf954e13c17ad5f80b59a075604
667ac333dbb7e265b3f5bc4bc94e236f64682c86 (git) before 079986d6db1f8e3d50c55f400cf998ac9690d2c8
667ac333dbb7e265b3f5bc4bc94e236f64682c86 (git) before 9a9b89eea4a9cc7726702946ff688d716962fabd
667ac333dbb7e265b3f5bc4bc94e236f64682c86 (git) before e123d9302d223767bd910bfbcfe607bae909f8ac
6.11
Any version before 6.11
6.12.75 (semver)
6.18.16 (semver)
6.19.6 (semver)
7.0 (original_commit_for_fix)
References
git.kernel.org/...c/348a5f8d06c7bdf954e13c17ad5f80b59a075604
git.kernel.org/...c/079986d6db1f8e3d50c55f400cf998ac9690d2c8
git.kernel.org/...c/9a9b89eea4a9cc7726702946ff688d716962fabd
git.kernel.org/...c/e123d9302d223767bd910bfbcfe607bae909f8ac