CVE-2024-27019

medium

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get() nft_unregister_obj() can concurrent with __nft_obj_type_get(), and there is not any protection when iterate over nf_tables_objects list in __nft_obj_type_get(). Therefore, there is potential data-race of nf_tables_objects list entry. Use list_for_each_entry_rcu() to iterate over nf_tables_objects list in __nft_obj_type_get(), and use rcu_read_lock() in the caller nft_obj_type_get() to protect the entire type query process.

References

https://git.kernel.org/stable/c/df7c0fb8c2b9f9cac65659332581b19682a71349

https://git.kernel.org/stable/c/d78d867dcea69c328db30df665be5be7d0148484

https://git.kernel.org/stable/c/cade34279c2249eafe528564bd2e203e4ff15f88

https://git.kernel.org/stable/c/ad333578f736d56920e090d7db1f8dec891d815e

https://git.kernel.org/stable/c/4ca946b19caf655a08d5e2266d4d5526025ebb73

https://git.kernel.org/stable/c/379bf7257bc5f2a1b1ca8514e08a871b7bf6d920

Details

Source: Mitre, NVD

Published: 2024-05-01

Updated: 2024-06-16

Risk Information

CVSS v2

Base Score: 3.8

Vector: CVSS2#AV:L/AC:H/Au:S/C:C/I:N/A:N

Severity: Low

CVSS v3

Base Score: 4.7

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Severity: Medium