CVE-2025-21758 The advisory has been revoked - it doesn't affect any version of package libperf (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CENTOS9-LIBPERF-9126314
- published5 Mar 2025
- disclosed27 Feb 2025
Introduced: 27 Feb 2025
CVE-2025-21758 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:9.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libperf package and not the libperf package as distributed by Centos.
In the Linux kernel, the following vulnerability has been resolved:
ipv6: mcast: add RCU protection to mld_newpack()
mld_newpack() can be called without RTNL or RCU being held.
Note that we no longer can use sock_alloc_send_skb() because ipv6.igmp_sk uses GFP_KERNEL allocations which can sleep.
Instead use alloc_skb() and charge the net->ipv6.igmp_sk socket under RCU protection.
References
- https://access.redhat.com/security/cve/CVE-2025-21758
- https://git.kernel.org/stable/c/1b91c597b0214b1b462eb627ec02658c944623f2
- https://git.kernel.org/stable/c/25195f9d5ffcc8079ad743a50c0409dbdc48d98a
- https://git.kernel.org/stable/c/a527750d877fd334de87eef81f1cb5f0f0ca3373
- https://git.kernel.org/stable/c/d60d493b0e65647e0335e6a7c4547abcea7df8e9
- https://git.kernel.org/stable/c/e8af3632a7f2da83e27b083f787bced1faba00b1
- https://git.kernel.org/stable/c/29fa42197f26a97cde29fa8c40beddf44ea5c8f3