CVE-2026-43055

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

01/05/2026

Last modified:

07/05/2026

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&#39;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&#39;s just use kzalloc_flex when allocating the aio_cmd and let ki_write_stream=0 to fix this issue.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

7.50

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	6.16 (including)	6.18.22 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.19 (including)	6.19.12 (excluding)
cpe:2.3:o:linux:linux_kernel:7.0:rc1::::::
cpe:2.3:o:linux:linux_kernel:7.0:rc2::::::
cpe:2.3:o:linux:linux_kernel:7.0:rc3::::::
cpe:2.3:o:linux:linux_kernel:7.0:rc4::::::
cpe:2.3:o:linux:linux_kernel:7.0:rc5::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2026-43055

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools