CVE-2026-43055

HIGH

scsi: target: file: Use kzalloc_flex for aio_cmd

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 7.5
EPSS 0.0005
EPSS Percentile 15.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (10)
Linux/Linux < 6.16
Linux/Linux 6.16
Linux/Linux 6.18.22 - 6.18.*
Linux/Linux 6.19.12 - 6.19.*
Linux/Linux 7.0
Linux/Linux 732f25a2895a8c1c54fb56544f0b1e23770ef4d7 - 01f784fc9d0ab2a6dac45ee443620e517cb2a19b
Linux/Linux 732f25a2895a8c1c54fb56544f0b1e23770ef4d7 - 4eaff1728d0e69b95933412241bbccf4f797dba8
Linux/Linux 732f25a2895a8c1c54fb56544f0b1e23770ef4d7 - ce54802fe6bb78eb0feffc66fed6a45d41ffc3ab
linux/linux_kernel 7.0 rc1 (5 CPE variants)
linux/linux_kernel 6.16 - 6.18.22
Published May 01, 2026
Tracked Since May 01, 2026