CVE-2025-68338

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxcc13ab18b201ab630f03511060ba289b70052959 < 9428654c827fa8d38b898135d26d39ee2d544246affected
LinuxLinuxcc13ab18b201ab630f03511060ba289b70052959 < 32abbcf4379a0f851d7eb9d4389e7bf5c64bf6c0affected
LinuxLinuxcc13ab18b201ab630f03511060ba289b70052959 < 25b62cc5b22c45face094ae3e8717258e46d1d19affected
LinuxLinux6.3affected
LinuxLinux0 < 6.3unaffected
LinuxLinux6.12.61 <= 6.12.*unaffected
LinuxLinux6.17.11 <= 6.17.*unaffected
LinuxLinux6.18 <= *unaffected

Weaknesses

References