Kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove()

Summary

A use-after-free flaw was found in the Linux kernel's netfilter in the way a user triggers the nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local user to crash the system or potentially escalate their privileges on the system.

Timeline

1. Jul 31, 2023, 4:22 PM UTCCVE published
2. Oct 14, 2026, 9:18 PM UTCRecord last updated

Affected versions

• kernel-rt

  Version range not reported

• kpatch-patch

  Version range not reported

• kernel

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• kernel

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• kernel-rt

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• kernel

  Version range not reported

• kpatch-patch

  Version range not reported

• kernel

  Version range not reported

• kernel

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• kernel-rt

  Version range not reported

• kernel

  Version range not reported

• kernel

  Version range not reported

• kpatch-patch

  Version range not reported

• kpatch-patch

  Version range not reported

• kernel

  Version range not reported

• kernel

  Version range not reported

• kernel-rt

  Version range not reported

• kpatch-patch

  Version range not reported

• kernel

  Version range not reported

• kernel-rt

  Version range not reported

• kpatch-patch

  Version range not reported

• kernel

  Version range not reported

• kernel

  Version range not reported

• kernel

  Version range not reported

• kernel-rt

  Version range not reported

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