Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/mana: Fix mana_destroy_wq_obj() cleanup in mana_ib_create_qp_rss() Sashiko points out there are two bugs here in the error unwind flow, both related to how the WQ table is unwound. First there is a double i-- on the first failure path due to the while loop having a i--, remove it. Second if mana_ib_install_cq_cb() fails then mana_create_wq_obj() is not undone due to the above i--.

References 4

• git.kernel.org https://git.kernel.org/stable/c/34ecf795692ee57c393109f4a24ccc313091e137
• git.kernel.org https://git.kernel.org/stable/c/8f23eb6c50f1a4bf32fc4d62cfb9fc39e8e586cf
• git.kernel.org https://git.kernel.org/stable/c/9a05a6798177e44dfbe18393be2c1ebb89ab06fd
• git.kernel.org https://git.kernel.org/stable/c/bb9cb36eaefa4dcb7c0d9f7a01e5c739abdd53a8

Remediation