CVE-2026-43055

Source
https://cve.org/CVERecord?id=CVE-2026-43055
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43055.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-43055
Downstream
Published
2026-05-01T14:15:48.139Z
Modified
2026-07-15T01:48:55.227509254Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
scsi: target: file: Use kzalloc_flex for aio_cmd
Details

In the Linux kernel, the following vulnerability has been resolved:

scsi: target: file: Use kzallocflex for aiocmd

The targetcorefile doesn't initialize the aiocmd->iocb for the kiwritestream. When a write command fdexecuterwaio() is executed, we may get a bogus kiwritestream value, causing unintended write failure status when checking iocb->kiwritestream > maxwritestreams in the block device.

Let's just use kzallocflex when allocating the aiocmd and let kiwritestream=0 to fix this issue.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43055.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
732f25a2895a8c1c54fb56544f0b1e23770ef4d7
Fixed
ce54802fe6bb78eb0feffc66fed6a45d41ffc3ab
Fixed
4eaff1728d0e69b95933412241bbccf4f797dba8
Fixed
01f784fc9d0ab2a6dac45ee443620e517cb2a19b

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43055.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.16.0
Fixed
6.18.22
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
6.19.12

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43055.json"