CVE-2025-68741

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix improper freeing of purex item In qla2xxx_process_purls_iocb(), an item is allocated via qla27xx_copy_multiple_pkt(), which internally calls qla24xx_alloc_purex_item(). The qla24xx_alloc_purex_item() function may return a pre-allocated item from a per-adapter pool for small allocations, instead of dynamically allocating memory with kzalloc(). An error handling path in qla2xxx_process_purls_iocb() incorrectly uses kfree() to release the item. If the item was from the pre-allocated pool, calling kfree() on it is a bug that can lead to memory corruption. Fix this by using the correct deallocation function, qla24xx_free_purex_item(), which properly handles both dynamically allocated and pre-allocated items.

Predictions

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

References

• https://access.redhat.com/errata/RHSA-2026:19568
• https://access.redhat.com/errata/RHSA-2026:8921
• https://www.suse.com/security/cve/CVE-2025-68741.html
• https://security-tracker.debian.org/tracker/CVE-2025-68741
• https://access.redhat.com/errata/RHSA-2026:9131
• https://bugzilla.redhat.com/2425046
• https://bugzilla.redhat.com/2439947
• https://errata.almalinux.org/8/ALSA-2026-9131.html
• https://access.redhat.com/errata/RHSA-2026:9135
• https://errata.almalinux.org/8/ALSA-2026-9135.html
• https://bugzilla.redhat.com/2394648
• https://errata.almalinux.org/9/ALSA-2026-8921.html