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416baaa9-dc9f-4396-8d5f-8c081fb06d67NVD:CVE-2022-48642

HistoryApr 28, 2024 - 1:15 p.m.

CVE-2022-48642

2024-04-2813:15:07

416baaa9-dc9f-4396-8d5f-8c081fb06d67

web.nvd.nist.gov

linux kernel

vulnerability

resolved

nf_tables

percpu memory leak

netfilter

chain stats

AI Score

7.4

Confidence

High

EPSS

Percentile

15.5%

JSON

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

netfilter: nf_tables: fix percpu memory leak at nf_tables_addchain()

It seems to me that percpu memory for chain stats started leaking since
commit 3bc158f8d0330f0a (“netfilter: nf_tables: map basechain priority to
hardware priority”) when nft_chain_offload_priority() returned an error.

References

git.kernel.org/stable/c/08d7524f366a886b99b1630a24a27dd6e0d7f852

git.kernel.org/stable/c/985b031667c3177b9e7fb9787b989628e4271714

git.kernel.org/stable/c/9a4d6dd554b86e65581ef6b6638a39ae079b17ac

git.kernel.org/stable/c/b043a525a3f5520abb676a7cd8f6328fdf959e88