The Linux kernel driver for Microchip sparx5 fails to release PSFP stream gate, flow meter, and stream filter resources when a flower configuration step fails. The bug causes a persistent kernel resource leak, which can accumulate over time and potentially exhaust kernel memory or other scarce resources, leading to system instability or a crash.

Linux kernel implementations that include the Microchip sparx5 network driver, regardless of specific kernel version, are susceptible until the driver incorporates the described cleanup fix.

Because the failure path is triggered during PSFP flower configuration, an attacker would need to be able to induce repeated configuration failures, which is inferred to require either privileged system access or the ability to craft network traffic that engages this particular driver function. The exact likelihood of exploitation is not quantified—EPSS is not available, no CVSS score was provided, and the vulnerability is not listed in CISA KEV. The potential impact is a denial‑of‑service condition through resource exhaustion if an attacker successfully triggers the error path repeatedly.