CVE-2024-42124 scsi: qedf: Make qedf_execute_tmf() non-preemptible

What is CVE-2024-42124?

CVE-2024-42124 is a medium-severity denial of service vulnerability in Linux kernel, published on 30 Jul 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

scsi: qedf: Make qedf_execute_tmf() non-preemptible

Stop calling smp_processor_id() from preemptible code in qedf_execute_tmf90. This results in BUG_ON() when running an RT kernel.

[ 659.343280] BUG: using smp_processor_id() in preemptible [00000000] code: sg_reset/3646 [ 659.343282] caller is qedf_execute_tmf+0x8b/0x360 [qedf]

Which versions are affected by CVE-2024-42124?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-42124?

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-2024-42124 being exploited?

There is no known exploitation of CVE-2024-42124 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-2024-42124, DEBIAN-CVE-2024-42124, GHSA-j3vc-53vj-555f, UBUNTU-CVE-2024-42124.