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Vulnerabilities

Vulnerability · CVE-2025-38737

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix oops due to uninitialised variable Fix smb3_init_transform_rq() to initialise buffer to NULL before ca

Published Sep 5, 2025 · catalog updated Oct 19, 2026 · Linux Linux

Check this week

CVE-2025-38737 is not in CISA KEV. FIRST estimates a 38.00% chance of exploitation in the next 30 days. Check whether you run Linux Linux.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
38.00%
Remediation
Version ranges on file
Affected products
cpe linux/linux kernel · vendor Linux Linux a2906d3316fc19bf0ade84618bb73eab604c447e <6adaa9fae36f848afa7278945d725e197e33c496

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix oops due to uninitialised variable Fix smb3_init_transform_rq() to initialise buffer to NULL before calling netfs_alloc_folioq_buffer() as netfs assumes it can append to the buffer it is given. Setting it to NULL means it should start a fresh buffer, but the value is currently undefined.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe linux/linux kernel6.17
  • vendor Linux Linux a2906d3316fc19bf0ade84618bb73eab604c447e <6adaa9fae36f848afa7278945d725e197e33c496a2906d3316fc19bf0ade84618bb73eab604c447e <6adaa9fae36f848afa7278945d725e197e33c496

How to fix CVE-2025-38737

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-38737 is not in CISA KEV. FIRST estimates a 38.00% chance of exploitation in the next 30 days. Check whether you run Linux Linux.

Which versions are affected?

Compare what you have installed with linux/linux kernel 6.17; Linux Linux a2906d3316fc19bf0ade84618bb73eab604c447e <6adaa9fae36f848afa7278945d725e197e33c496 a2906d3316fc19bf0ade84618bb73eab604c447e <6adaa9fae36f848afa7278945d725e197e33c496. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-908: Use of Uninitialized Resource. EPSS 38.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 5, 2025 · NIST NVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: cifs: Fix oops due to uninitialised variable Fix smb3_init_transform_rq() to initialise buffer to NULL before calling netfs_alloc_folioq_buffer() as netfs assumes it can append to the buffer it is given. Setting it to NULL means it should start a fresh buffer, but the value is currently undefined.

  2. Oct 19, 2026 · NIST NVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: cifs: Fix oops due to uninitialised variable Fix smb3_init_transform_rq() to initialise buffer to NULL before calling netfs_alloc_folioq_buffer() as netfs assumes it can append to the buffer it is given. Setting it to NULL means it should start a fresh buffer, but the value is currently undefined.

Sources

  • CVE.orgVulnerability recordCVE-2025-38737

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-31552

    In the Linux kernel, the following vulnerability has been resolved: cifs: Fix oops due to uninitialised variable Fix smb3_init_transform_rq() to initialise buffer to NULL before calling netfs_alloc_folioq_buffer() as netfs assumes it can append to the buffer it is given. Setting

    euvd.enisa.europa.eu
  • NIST NVDVulnerability recordCVE-2025-38737

    In the Linux kernel, the following vulnerability has been resolved: cifs: Fix oops due to uninitialised variable Fix smb3_init_transform_rq() to initialise buffer to NULL before calling netfs_alloc_folioq_buffer() as netfs assumes it can append to the buffer it is given. Setti

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 19, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.