CVE-2026-98791

Source
https://cve.org/CVERecord?id=CVE-2026-98791
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98791.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-98791
Downstream
Published
2026-10-18T15:48:30Z
Modified
2026-10-20T02:30:17Z
Summary
net/mlx5e: Fix AF_XDP TX timestamp teardown NULL dereference
Details

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

net/mlx5e: Fix AF_XDP TX timestamp teardown NULL dereference

During XSK TX queue teardown, outstanding descriptors are completed without a CQE. If one requested a TX timestamp, the completion path passes that NULL CQE to mlx5e_xsk_fill_timestamp(), which dereferences it.

Return zero when no CQE is available, indicating that teardown did not produce a TX timestamp.

Database specific
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98791.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
ec706a860eba99bf934d59f74b5db90af44e882e
Fixed
fce70b6bf9f3261e887419a4e7caa25b80fa9d55
Fixed
f81d40e2eb69552334f510114f3e6edd0d43178b
Fixed
63df0ef4c6e3105589e6bb2e758ce611b0ada86c
Fixed
7b97273cbebe9dd4fddc457f0c4f2a124d0e3996

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98791.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.8.0
Fixed
6.12.113
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.56
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.2.10

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98791.json"