CVE-2026-90358

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-90358

Key Details

CVE	CVE-2026-90358
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; 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:

bpf, x86: Fix trampoline stack size for 128-bit arguments

btf_distill_func_proto() accepts a function argument up to 16 bytes, so a

128-bit scalar such as __int128 reaches the x86 trampoline with

arg_size == 16. But the current implementation assumes an __int128

argument only needs one register, so the register save area is

under-allocated and save_args() overwrites adjacent stack slots.

Compute the register count from arg_size for all arguments to fix it. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-90358
CVE	https://www.cve.org/CVERecord?id=CVE-2026-90358

Source

Reference

NVD

CVE