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Vulnerability · Published Apr 17, 2024 · Assigned by Linux

CVE-2024-26910netfilter: ipset: fix performance regression in swap operation

Medium 4.7

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)4.7Medium
Exploit odds (30 days)0.2%top 93.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.82-1DEBIAN-CVE-2024-26910
Debian:13linux6.7.7-1DEBIAN-CVE-2024-26910
Debian:14linux6.7.7-1DEBIAN-CVE-2024-26910
Ubuntu:22.04:LTSlinux5.15.0-106.116UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-aws5.15.0-1061.67UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-aws-6.56.5.0-1023.23~22.04.1UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-azure5.15.0-1063.72UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-azure-6.56.5.0-1024.25~22.04.1UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1063.72.1UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-gcp5.15.0-1059.67UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-gcp-6.56.5.0-1024.26~22.04.1UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-gke5.15.0-1058.63UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1044.51UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-44.44~22.04.1UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-ibm5.15.0-1054.57UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1057.63UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-kvm5.15.0-1058.63UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-106.116UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-44.44.1~22.04.1UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1054.55UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1023.24UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1027.28UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-oracle5.15.0-1059.65UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1026.26~22.04.1UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-raspi5.15.0-1054.57UBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-26910
Ubuntu:22.04:LTSlinux-starfive-6.56.5.0-1017.18~22.04.1UBUNTU-CVE-2024-26910

Affected products (as reported)

VendorProductVersions
Linux Linux 427deb5ba5661c4ae1cfb35955d2e01bd5f3090a – before c7f2733e5011bfd136f1ca93497394d43aa76225e7152a138a5ac77439ff4e7a7533448a7d4c260d – before a24d5f2ac8ef702a58e55ec276aad29b4bd97e058bb930c3a1eacec1b14817f565ff81667c7c5dfa – before c2dc077d8f722a1c73a24e674f925602ee5ece49875ee3a09e27b7adb7006ca6d16faf7f33415aa5 – before 653bc5e6d9995d7d5f497c665b321875a626161c23c31036f862582f98386120aee55c9ae23d7899 – before b93a6756a01f4fd2f329a39216f9824c56a6639728628fa952fefc7f2072ce6e8016968cc452b1ba – before 970709a67696b100a57b33af1a3d75fc34b747eb28628fa952fefc7f2072ce6e8016968cc452b1ba – before 97f7cf1cd80eeed3b7c808b7c12463295c751001a12606e5ad0cee8f4ba3ec68561c4d6275d2df57
Linux Linux 6.7

References