CVE-2025-68741 (GCVE-0-2025-68741)
Vulnerability from cvelistv5
Published
2025-12-24 12:09
Modified
2026-08-05 12:11
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 875386b98857822b77ac7f95bdf367b70af5b78c
Version: 875386b98857822b77ac7f95bdf367b70af5b78c
Version: 875386b98857822b77ac7f95bdf367b70af5b78c
Version: 875386b98857822b77ac7f95bdf367b70af5b78c
Version: 875386b98857822b77ac7f95bdf367b70af5b78c
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