CVE-2025-68338
In the Linux kernel, the following vulnerability has been resolved: net: dsa: microchip: Don't free uninitialized ksz_irq If something goes wrong at setup, ksz_irq_free() can be called on uninitialized ksz_irq (for example when ksz_ptp_irq_setup() fails). It leads to freeing uninitialized IRQ numbers and/or domains. Use dsa_switch_for_each_user_port_continue_reverse() in the error path to iterate only over the fully initialized ports.
Affected versions
Linux kernel versions
6.3
and later are affected. Fixed in
6.12.61,
6.17.11,
6.18
and their respective stable series.
References
The following references provide additional information about CVE-2025-68338 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/25b62cc5b22c45face094ae3e8717258e46d1d19
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PatchKernel patch commithttps://git.kernel.org/stable/c/32abbcf4379a0f851d7eb9d4389e7bf5c64bf6c0
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PatchKernel patch commithttps://git.kernel.org/stable/c/9428654c827fa8d38b898135d26d39ee2d544246
Frequently asked questions
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What is CVE-2025-68338?
CVE-2025-68338 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.3 onward and has been patched in 6.12.61, 6.17.11 and 6.18. CVE-2025-68338 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-2025-68338?
Yes — CVE-2025-68338 has been patched. Fixed versions include 6.12.61, 6.17.11 and 6.18. If you are running Linux kernel 6.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-68338 actively exploited?
No — CVE-2025-68338 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.