CVE-2023-53591

CVE-2023-53591 affects the Linux kernel’s mlx5e offload path. The issue is a deadlock in the tc route query code when peer flows are created while holding the devcom rw semaphore. The patch refactors the code for lockless execution by making the devcom data pointer RCU-friendly, wrapping the pair...

kernel: net/mlx5e: Fix deadlock in tc route query code

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix deadlock in tc route query code Cited commit causes ABBA deadlock0 when peer flows are created while holding the devcom rw semaphore. Due to peer flows offload implementation the lock is taken much higher up the ca...