What’s Vulnerable › Vulnerabilities

CVE-2025-68302: net: sxgbe: fix potential NULL dereference in sxgbe_rx()

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-16 · updated 2026-10-13

Description

In the Linux kernel, the following vulnerability has been resolved: net: sxgbe: fix potential NULL dereference in sxgbe_rx() Currently, when skb is null, the driver prints an error and then dereferences skb on the next line. To fix this, let's add a 'break' after the error message to switch to sxgbe_rx_refill(), which is similar to the approach taken by the other drivers in this particular case, e.g. calxeda with xgmac_rx(). Found during a code review.

Affected products

• Linux kernel: 3.15 — fixed in 6.18

How to fix

Upgrade to a fixed version: Linux kernel 6.18. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/18ef3ad1bb57dcf1a9ee61736039aedccf670b21
• https://git.kernel.org/stable/c/45b5b4ddb8d6bea5fc1625ff6f163bbb125d49cc
• https://git.kernel.org/stable/c/46e5332126596a2ca791140feab18ce1fc1a3c86
• https://git.kernel.org/stable/c/7fd789d6ea4915034eb6bcb72f6883c8151083e5
• https://git.kernel.org/stable/c/88f46c0be77bfe45830ac33102c75be7c34ac3f3
• https://git.kernel.org/stable/c/ac171c3c755499c9f87fe30b920602255f8b5648
• https://git.kernel.org/stable/c/f5bce28f6b9125502abec4a67d68eabcd24b3b17

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