CVE-2024-26910
What it is
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix performance regression in swap operation The patch "netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test", commit 28628fa9 fixes a race condition. But the synchronize_rcu() added to the swap function unnecessarily slows it down: it can safely be moved to destroy and use call_rcu() instead. Eric Dumazet pointed out that simply calling the destroy functions as rcu callback does not work: sets with timeout use garbage collectors which need cancelling at destroy which can wait. Therefore the destroy functions are split into two: cancelling garbage collectors safely at executing the command received by netlink and moving the remaining part only into the rcu callback.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 4.7 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-362 · Race condition
- Record status
- Modified
Affected
- Linux Kernel < 5.4.269
- Linux Kernel < 5.10.210
- Linux Kernel < 5.15.149
- Linux Kernel < 6.1.79
- Linux Kernel < 6.6.18
- Linux Kernel < 6.7.6
Attack profile CVSS 3.1 · 4.7
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2024-26910.md and follow it. Check whether this project is affected by CVE-2024-26910. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/653bc5e6d9995d7d5f497c665b321875a626161c
- https://git.kernel.org/stable/c/970709a67696b100a57b33af1a3d75fc34b747eb
- https://git.kernel.org/stable/c/97f7cf1cd80eeed3b7c808b7c12463295c751001
- https://git.kernel.org/stable/c/a24d5f2ac8ef702a58e55ec276aad29b4bd97e05
- https://git.kernel.org/stable/c/b93a6756a01f4fd2f329a39216f9824c56a66397
- https://git.kernel.org/stable/c/c2dc077d8f722a1c73a24e674f925602ee5ece49
- https://git.kernel.org/stable/c/c7f2733e5011bfd136f1ca93497394d43aa76225
- https://git.kernel.org/stable/c/653bc5e6d9995d7d5f497c665b321875a626161c
- https://git.kernel.org/stable/c/970709a67696b100a57b33af1a3d75fc34b747eb
- https://git.kernel.org/stable/c/97f7cf1cd80eeed3b7c808b7c12463295c751001
References
- https://git.kernel.org/stable/c/653bc5e6d9995d7d5f497c665b321875a626161c
- https://git.kernel.org/stable/c/970709a67696b100a57b33af1a3d75fc34b747eb
- https://git.kernel.org/stable/c/97f7cf1cd80eeed3b7c808b7c12463295c751001
- https://git.kernel.org/stable/c/a24d5f2ac8ef702a58e55ec276aad29b4bd97e05
- https://git.kernel.org/stable/c/b93a6756a01f4fd2f329a39216f9824c56a66397
- https://git.kernel.org/stable/c/c2dc077d8f722a1c73a24e674f925602ee5ece49
- https://git.kernel.org/stable/c/c7f2733e5011bfd136f1ca93497394d43aa76225
- https://git.kernel.org/stable/c/653bc5e6d9995d7d5f497c665b321875a626161c
- https://git.kernel.org/stable/c/970709a67696b100a57b33af1a3d75fc34b747eb
- https://git.kernel.org/stable/c/97f7cf1cd80eeed3b7c808b7c12463295c751001
- https://git.kernel.org/stable/c/a24d5f2ac8ef702a58e55ec276aad29b4bd97e05
- https://git.kernel.org/stable/c/b93a6756a01f4fd2f329a39216f9824c56a66397
- https://git.kernel.org/stable/c/c2dc077d8f722a1c73a24e674f925602ee5ece49
- https://git.kernel.org/stable/c/c7f2733e5011bfd136f1ca93497394d43aa76225
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html