CVE-2025-68741 - scsi: qla2xxx: Fix improper freeing of purex item

CVE-2025-68741 - scsi: qla2xxx: Fix improper freeing of purex item

https://cvefeed.io/rssfeed/latest.atom / Wed, 12/24/2025 - 16:54
CVE ID : CVE-2025-68741
Published : Dec. 24, 2025, 1:16 p.m. | 1 hour, 34 minutes ago
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.
Severity: 0.0 | NA
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