CVE-2026-98029

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-98029

Key Details

CVE	CVE-2026-98029
CVSS Score / Version	7.0 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is high; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

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

eth: nfp: bound the ntuple rule dump by the caller's buffer size

nfp_net_get_fs_loc() dumps every entry of nn->fs.list into rule_locs[]

without consulting cmd->rule_cnt, which is how many entries the caller

had room for. ETHTOOL_GRXCLSRLALL requires no CAP_NET_ADMIN and the

ioctl sizes the buffer from the rule_cnt userspace passes in, so once an

admin has installed flow steering rules any user can ask for fewer slots

than there are rules and run off the end of the allocation. A rule_cnt

of 0 leaves the buffer pointer NULL and the walk dereferences it.

Bail out with -EMSGSIZE when the buffer fills up, the way the other

ntuple capable drivers do, and report how many locations were filled so

a shrinking rule list does not leave the caller reading stale slots. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-98029
CVE	https://www.cve.org/CVERecord?id=CVE-2026-98029

Source

Reference

NVD

CVE