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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HAffected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 875386b98857822b77ac7f95bdf367b70af5b78c, < 4bccd506a1f1ab01d1f45b2a3effff6bedc73cf9; >= 875386b98857822b77ac7f95bdf367b70af5b78c, < 8e9f0a0717ba31d5842721627ade1e62d7aec012; >= 875386b98857822b77ac7f95bdf367b70af5b78c, < cfe3e2f768d248fd3d965d561d0768a56dd0b9f8; >= 875386b98857822b77ac7f95bdf367b70af5b78c, < 5fa1c8226b4532ad7011d295d3ab4ad45df105ae; >= 875386b98857822b77ac7f95bdf367b70af5b78c, < 78b1a242fe612a755f2158fd206ee6bb577d18ca |
| Linux | Linux | 6.6 |
References
- https://git.kernel.org/stable/c/4bccd506a1f1ab01d1f45b2a3effff6bedc73cf9
- https://git.kernel.org/stable/c/5fa1c8226b4532ad7011d295d3ab4ad45df105ae
- https://git.kernel.org/stable/c/78b1a242fe612a755f2158fd206ee6bb577d18ca
- https://git.kernel.org/stable/c/8e9f0a0717ba31d5842721627ade1e62d7aec012
- https://git.kernel.org/stable/c/cfe3e2f768d248fd3d965d561d0768a56dd0b9f8
Timeline
- Published
- Dec 24, 2025
- Last modified
- Oct 13, 2026
- NVD status
- Deferred