Kernel Panic in Linux Due to skb_linearize in Skb Operations by Linux Foundation
CVE-2025-38165
What is CVE-2025-38165?
A vulnerability in the Linux kernel's socket memory management has been identified that can lead to a kernel panic. Specifically, this issue is triggered when executing skb_linearize due to improper handling of socket buffer (skb) operations during heavy data aggregation under specific conditions. When the --rx-strp parameter is set to 100000, the data exceeds allowable limits, causing the panic assertion BUG_ON(skb_shared(skb)) to fail. The fix involves careful adjustment of skb_get operations to prevent this state from occurring, ensuring more stable networking functionality.
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Affected Version(s)
Linux 65ad600b9bde68d2d28709943ab00b51ca8f0a1d < 4dba44333a11522df54b49aa1f2edfaf6ce35fc7
Linux 923877254f002ae87d441382bb1096d9e773d56d < 9718ba6490732dbe70190d42c21deb1440834402
Linux a454d84ee20baf7bd7be90721b9821f73c7d23d9