CVE-2026-43055

HighCVSS 7.5/10Last modified Oct 19, 2026

Description

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-457

Affected software

No affected versions have been published.

Timeline

Published
May 1, 2026
Last modified
Oct 19, 2026
NVD status
Modified

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CVE-2026-43055: High severity, CVSS 7.5 | Vulnix