CVE-2026-43055

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-43055

Key Details

CVE	CVE-2026-43055
CVSS Score / Version	7.5 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
CVSS Prose	attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is none; integrity impact is none; 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:

scsi: target: file: Use kzalloc_flex for aio_cmd

The target_core_file doesn't initialize the aio_cmd->iocb for the

ki_write_stream. When a write command fd_execute_rw_aio() is executed,

we may get a bogus ki_write_stream value, causing unintended write

failure status when checking iocb->ki_write_stream > max_write_streams

in the block device.

Let's just use kzalloc_flex when allocating the aio_cmd and let

ki_write_stream=0 to fix this issue. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-43055
CVE	https://www.cve.org/CVERecord?id=CVE-2026-43055

Source

Reference

NVD

CVE