CVE-2024-26808: netfilter: nft_chain_filter: handle NETDEV_UNREGISTER for inet/ingress basechain
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nftchainfilter: handle NETDEVUNREGISTER for inet/ingress basechain
Remove netdevice from inet/ingress basechain in case NETDEVUNREGISTER event is reported, otherwise a stale reference to netdevice remains in the hook list.
Other sources
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nftchainfilter: handle NETDEVUNREGISTER for inet/ingress basechain
The Linux kernel CVE team has assigned CVE-2024-26808 to this issue.
Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024040458-CVE-2024-26808-2df2@gregkh/T
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1 - Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 5.10.210 - Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 5.15.149 - Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 6.1.76 - Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 6.6.15 - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 6.7.3 - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 6.8
Event History
Frequently Asked Questions
What is the severity of CVE-2024-26808?
CVE-2024-26808 has been classified with a severity rating of medium.
How do I fix CVE-2024-26808?
To fix CVE-2024-26808, update the kernel to one of the patched versions listed in your distribution's advisory.
Which Linux kernel versions are affected by CVE-2024-26808?
CVE-2024-26808 affects multiple kernel versions including those before 5.10.210, 5.15.149, 6.1.76, and others as listed in the vulnerability report.
What impact does CVE-2024-26808 have on system security?
CVE-2024-26808 may allow an attacker to exploit the stale reference to netdevice in the ingress basechain, potentially compromising network functionalities.
Is there a workaround for CVE-2024-26808?
There are no recommended workarounds for CVE-2024-26808, and it is best mitigated by applying available patches.