CVE-2024-53093 nvme-multipath: defer partition scanning

What is CVE-2024-53093?

CVE-2024-53093 is a high-severity denial of service vulnerability in Linux kernel, published on 21 Nov 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:

nvme-multipath: defer partition scanning

We need to suppress the partition scan from occuring within the controller's scan_work context. If a path error occurs here, the IO will wait until a path becomes available or all paths are torn down, but that action also occurs within scan_work, so it would deadlock. Defer the partion scan to a different context that does not block scan_work.

Which versions are affected by CVE-2024-53093?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-53093?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2024-53093 being exploited?

There is no known exploitation of CVE-2024-53093 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 AZL-54604, AZL-54632, BELL-CVE-2024-53093, DEBIAN-CVE-2024-53093, GHSA-rw6f-qwrg-vhvv, ROOT-OS-DEBIAN-11-CVE-2024-53093 and 2 more.