Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: net: skb: Fixed the cross-cache free of KFENCE-alocated skb heads. The value of SKBSMALLHEADCACHESIZE is intentionally set to a non-power-of-2 value e.g., 704 on x8664 to avoid collisions with generic kmalloc bucket sizes. This...

SUSE CVE-2026-31429

In the Linux kernel, the following vulnerability has been resolved: net: skb: fix cross-cache free of KFENCE-allocated skb head SKBSMALLHEADCACHESIZE is intentionally set to a non-power-of-2 value e.g. 704 on x8664 to avoid collisions with generic kmalloc bucket sizes. This ensures that...

CVE-2026-31429 net: skb: fix cross-cache free of KFENCE-allocated skb head

In the Linux kernel, the following vulnerability has been resolved: net: skb: fix cross-cache free of KFENCE-allocated skb head SKBSMALLHEADCACHESIZE is intentionally set to a non-power-of-2 value e.g. 704 on x8664 to avoid collisions with generic kmalloc bucket sizes. This ensures that...

CVE-2026-31429

In the Linux kernel, the following vulnerability has been resolved: net: skb: fix cross-cache free of KFENCE-allocated skb head SKBSMALLHEADCACHESIZE is intentionally set to a non-power-of-2 value e.g. 704 on x8664 to avoid collisions with generic kmalloc bucket sizes. This ensures that...

CVE-2026-31429

Summary (supported): CVE-2026-31429 affects the Linux kernel, specifically a KFENCE interaction that caused a cross-cache free of KFENCE-allocated skb heads. The root cause was that kfence_ksize() could return the exact allocation size, leading to skb_end_offset matching SKB_SMALL_HEAD_HEADROOM a...

PT-2026-33746

Name of the Vulnerable Software and Affected Versions Linux kernel versions 6.3 through 6.12.81 Description A slab cross-cache free issue exists in the Linux kernel when KFENCE is enabled. The skb kfree head function uses skb end offset to distinguish between skb heads allocated from skb small he...