CVE-2025-68741
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.
Affected versions
Linux kernel versions
6.6
and later are affected. Fixed in
6.6.120,
6.12.63,
6.17.13,
6.18.2,
6.19
and their respective stable series.
References
The following references provide additional information about CVE-2025-68741 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/4bccd506a1f1ab01d1f45b2a3effff6bedc73cf9
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PatchKernel patch commithttps://git.kernel.org/stable/c/5fa1c8226b4532ad7011d295d3ab4ad45df105ae
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PatchKernel patch commithttps://git.kernel.org/stable/c/78b1a242fe612a755f2158fd206ee6bb577d18ca
Frequently asked questions
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What is CVE-2025-68741?
CVE-2025-68741 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.6 onward and has been patched in 6.6.120, 6.12.63, 6.17.13 and others. CVE-2025-68741 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2025-68741?
Yes — CVE-2025-68741 has been patched. Fixed versions include 6.6.120, 6.12.63, 6.17.13 and others. If you are running Linux kernel 6.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-68741 actively exploited?
No — CVE-2025-68741 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.