CVE-2024-26809: netfilter: nft_set_pipapo: release elements in clone only from destroy path

Description

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nft_set_pipapo: release elements in clone only from destroy path

Clone already always provides a current view of the lookup table, use it
to destroy the set, otherwise it is possible to destroy elements twice.

This fix requires:

212ed75dc5fb ("netfilter: nf_tables: integrate pipapo into commit protocol")

which came after:

9827a0e6e23b ("netfilter: nft_set_pipapo: release elements in clone from abort path").

Classification

CVE ID: CVE-2024-26809

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 12.41% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://git.kernel.org/stable/c/b36b83297ff4910dfc8705402c8abffd4bbf8144
https://git.kernel.org/stable/c/362508506bf545e9ce18c72a2c48dcbfb891ab9c
https://git.kernel.org/stable/c/5ad233dc731ab64cdc47b84a5c1f78fff6c024af
https://git.kernel.org/stable/c/ff90050771412b91e928093ccd8736ae680063c2
https://git.kernel.org/stable/c/821e28d5b506e6a73ccc367ff792bd894050d48b
https://git.kernel.org/stable/c/9384b4d85c46ce839f51af01374062ce6318b2f2
https://git.kernel.org/stable/c/b0e256f3dd2ba6532f37c5c22e07cb07a36031ee

Timeline