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Back to active CVEs
High · CVSS 7.5CVE-2026-43055

scsi: target: file: Use kzalloc_flex for aio_cmdCVE-2026-43055

Answer in brief

CVE-2026-43055 records a High severity (CVSS 7.5) vulnerability in scsi: target: file: Use kzalloc_flex for aio_cmd. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published May 1, 2026Updated Oct 16, 2026Source checked Oct 16, 2026First seen by HOL Oct 16, 2026Material review Oct 16, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.5
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=732f25a2895a8c1c54fb56544f0b1e23770ef4d7 <ce54802fe6bb78eb0feffc66fed6a45d41ffc3ab || >=732f25a2895a8c1c54fb56544f0b1e23770ef4d7 <4eaff1728d0e69b95933412241bbccf4f797dba8 || >=732f25a2895a8c1c54fb56544f0b1e23770ef4d7 <01f784fc9d0ab2a6dac45ee443620e517cb2a19bce54802fe6bb78eb0feffc66fed6a45d41ffc3ab, 4eaff1728d0e69b95933412241bbccf4f797dba8, 01f784fc9d0ab2a6dac45ee443620e517cb2a19b
Linux/Linuxgeneric6.16Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to ce54802fe6bb78eb0feffc66fed6a45d41ffc3ab if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    May 1, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 16, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 16, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

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Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 16, 2026
References
3 linked sources
Open source record