CVE-2024-46697 nfsd: ensure that nfsd4_fattr_args.context is zeroed out

What is CVE-2024-46697?

CVE-2024-46697 is a critical vulnerability in Linux kernel, published on 13 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

nfsd: ensure that nfsd4_fattr_args.context is zeroed out

If nfsd4_encode_fattr4 ends up doing a "goto out" before we get to checking for the security label, then args.context will be set to uninitialized junk on the stack, which we'll then try to free. Initialize it early.

Weakness: CWE-665

Which versions are affected by CVE-2024-46697?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-46697?

Apply the vendor's patch.

Is CVE-2024-46697 being exploited?

There is no known exploitation of CVE-2024-46697 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2024-46697, DEBIAN-CVE-2024-46697, GHSA-prj2-h762-9j59, UBUNTU-CVE-2024-46697.