A memory leak in the bnxt_re_create_srq() function in drivers/infiniband/hw/bnxt_re/ib_verbs.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering copy to udata failures, aka CID-4a9d46a9fe14. Upstream commit: https://github.com/torvalds/linux/commit/4a9d46a9fe14401f21df69cea97c62396d5fb053
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1775725]
This is fixed for Fedora in the 5.3.13 stable kernel update.
Statement: This issue is rated as having Moderate impact because local attacker is needed in order to trigger it.
Mitigation: In order to mitigate this issue it is possible to prevent the affected code from being loaded by blacklisting the kernel module bnxt_re. For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278 .