In the Linux kernel, the following vulnerability has been resolved:
net/sched: fix pedit partial COW leading to page cache corruption
tcf_pedit_act() computes the COW range for skb_ensure_writable()
once before the key loop using tcfp_off_max_hint, but the hint does
not account for the runtime header offset added by typed keys. This
can leave part of the write region un-COW'd.
Fix by moving skb_ensure_writable() inside the per-key loop where
the actual write offset is known, and add overflow checking on the
offset arithmetic. For negative offsets (e.g. Ethernet header edits
at ingress), use skb_cow() to COW the headroom instead. Guard
offset_valid() against INT_MIN, where negation is undefined.
References
Configurations
Configuration 1 (hide)
|
History
No history.
Information
Published : 2026-06-16 08:16
Updated : 2026-09-02 13:17
NVD link : CVE-2026-46331
Mitre link : CVE-2026-46331
CVE.ORG link : CVE-2026-46331
JSON object : View
Products Affected
linux
- linux_kernel
