CVE-2026-72050: octeontx2-af: Free BPID bitmap on setup failure

Severity: unknown
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-15 · updated 2026-08-17

Description

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Free BPID bitmap on setup failure nix_setup_bpids() allocates bp->bpids with rvu_alloc_bitmap(), which uses a plain kcalloc(). If any of the following devm_kcalloc() allocations for the BPID mapping arrays fails, the function returns without freeing the bitmap. Free the BPID bitmap before returning from those error paths.

Affected products

Linux kernel: 6.9 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/19c148cb82d11bb7cc7d86038a94e608a297e63c
https://git.kernel.org/stable/c/36323f54cd323122a1be89ab2c316a6e55a94e30
https://git.kernel.org/stable/c/7a939b683a74bd7d7ce4e3b7f696b491c8d71af4
https://git.kernel.org/stable/c/d0c880c9f4051100517040d065caff60e913b659

Get alerted when CVE-2026-72050 or the next vulnerability affects your stack