net/mlx5e: Fix AF_XDP TX timestamp teardown NULL dereference
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.
CVE-2026-98791
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98791
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "ec706a860eba99bf934d59f74b5db90af44e882e",
"lessThan": "fce70b6bf9f3261e887419a4e7caa25b80fa9d55",
"versionType": "git"
},
{
"status": "affected",
"version": "ec706a860eba99bf934d59f74b5db90af44e882e",
"lessThan": "f81d40e2eb69552334f510114f3e6edd0d43178b",
"versionType": "git"
},
{
"status": "affected",
"version": "ec706a860eba99bf934d59f74b5db90af44e882e",
"lessThan": "63df0ef4c6e3105589e6bb2e758ce611b0ada86c",
"versionType": "git"
},
{
"status": "affected",
"version": "ec706a860eba99bf934d59f74b5db90af44e882e",
"lessThan": "7b97273cbebe9dd4fddc457f0c4f2a124d0e3996",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.8",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.113",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.56",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.10",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98791
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38719 · Revision 1
- Added to Heist Feed
- Publisher date