CVE-2026-89906

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-89906

Key Details

CVE	CVE-2026-89906
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:

LoongArch: BPF: Refactor jump offset calculation in tail call

The old macro-based jmp_offset calculation derives the jump distance

from a stale prior-pass code stride, which can lead to wrong branch

offsets and soft lockups under extra JIT passes.

Fix this by calculating the offset directly on the absolute target:

"ctx->offset[insn + 1] - ctx->idx".

To avoid a false 16-bit range check abort during size estimation, add

a "ctx->image == NULL" guard to inject a safe dummy offset. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-89906
CVE	https://www.cve.org/CVERecord?id=CVE-2026-89906

Source

Reference

NVD

CVE