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Critical 9.8Published Sep 5, 2025

CVE-2025-38737cifs: Fix oops due to uninitialised variable

Updated under an hour ago ()

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
Not given
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Linux
NVD analysis
Modified
Record last updated
Aug 5, 2026
First seen by InfoSec Signals
Oct 19, 2026

Affected products

Affected products
Linux Linux
linux:linux (from the name)
from a2906d3316fc19bf0ade84618bb73eab604c447e before 4931fe2dbe1cc0e7d350a4b51b0b330e43971d98; from a2906d3316fc19bf0ade84618bb73eab604c447e before 6adaa9fae36f848afa7278945d725e197e33c496; from a2906d3316fc19bf0ade84618bb73eab604c447e before 453a6d2a68e54a483d67233c6e1e24c4095ee4be
CNA record
linux linux_kernel
linux:linux_kernel
from 6.12 before 6.12.44; from 6.13 before 6.16.4; 6.17; 6.17
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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