CVE-2026-98724
In the Linux kernel, the following vulnerability has been resolved: nvmet: pci-epf: reject too-short SGL segments The host controls an SGL segment's length.
Overview
CVE-2026-98724 is a known-severity vulnerability. It was published on October 18, 2026.
Technical description
In the Linux kernel, the following vulnerability has been resolved:
nvmet: pci-epf: reject too-short SGL segments
The host controls an SGL segment's length. A nonzero length smaller than
one SGL descriptor makes nr_descs zero, so
nvmet_pci_epf_get_sgl_segment() reads the type byte of sgls[-1] outside
the allocated buffer. If that byte contains a segment descriptor type,
the function also copies the preceding 16 bytes and returns a negative
descriptor count.
The read was reproduced in 3/3 KASAN boots with only the host transfer
mocked by a KUnit test:
BUG: KASAN: slab-out-of-bounds in nvmet_pci_epf_get_sgl_segment
Read of size 1 by task kunit_try_catch
Call Trace:
nvmet_pci_epf_get_sgl_segment
nvmet_pci_epf_short_sgl_test
Kernel panic - not syncing: KASAN: panic_on_warn set ...
Reject segments that cannot hold one descriptor before allocating or
transferring their contents.
Remediation
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
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Frequently asked questions
What is CVE-2026-98724?
CVE-2026-98724 is a known-severity vulnerability. It was published on October 18, 2026.
How severe is CVE-2026-98724?
CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.
How do I fix or remediate CVE-2026-98724?
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-98724?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-98724 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.