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NVD / CVE Program· CNA Linux

CVE-2025-39835: xfs: do not propagate ENODATA disk errors into xattr code

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.17% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 157ddfb05961c68ab7d457a462822a698e4e4bf4, 39fc2742ca14f7fbc621ce9b43bcbd00248cb9a8, 90bae69c2959c39912f0c2f07a9a7894f3fc49f5; cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0 5.15.200.1-1.

Low priority for now. Upgrade to Linux Linux 157ddfb05961c68ab7d457a462822a698e4e4bf4, 39fc2742ca14f7fbc621ce9b43bcbd00248cb9a8, 90bae69c2959c39912f0c2f07a9a7894f3fc49f5; cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0 5.15.200.1-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: xfs: do not propagate ENODATA disk errors into xattr code ENODATA (aka ENOATTR) has a very specific meaning in the xfs xattr code; namely, that the requested attribute name could not be found. However, a medium error from disk may also return ENODATA. At best, this medium error may escape to userspace as "attribute not found" when in fact it's an IO (disk) error. At worst, we may oops in xfs_attr_leaf_get() when we do: error = xfs_attr_leaf_hasname(args, &bp); if (error == -ENOATTR) { xfs_trans_brelse(args->trans, bp); return error; } because an ENODATA/ENOATTR error from disk leaves us with a null bp, and the xfs_trans_brelse will then null-deref it. As discussed on the list, we really need to modify the lower level IO functions to trap all disk errors and ensure that we don't let unique errors like this leak up into higher xfs functions - many like this should be remapped to EIO. However, this patch directly addresses a reported bug in the xattr code, and should be safe to backport to stable kernels. A larger-scope patch to handle more unique errors at lower levels can follow later. (Note, prior to 07120f1abdff we did not oops, but we did return the wrong error code to userspace.)

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Sep 16, 2025
Updated
Oct 19, 2026
EPSS
0.1% · 6th percentile
CWE
—

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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  • when exploit code appears or is weaponized
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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel
debiandebian linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux11.0
  • linux linux kernel5.11 and later · before 5.15.191
  • linux linux kernel5.16 and later · before 6.1.150
  • linux linux kernel6.2 and later · before 6.6.104
  • linux linux kernel5.9 and later · before 5.10.242
  • linux linux kernel6.13 and later · before 6.16.5
  • linux linux kernel6.7 and later · before 6.12.45
  • linux linux kernel6.17

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 5.9affected
    • 07120f1abdff80f3d1351f733661abe28d609535 and later · before 157ddfb05961c68ab7d457a462822a698e4e4bf4affected · git
    • 07120f1abdff80f3d1351f733661abe28d609535 and later · before 90bae69c2959c39912f0c2f07a9a7894f3fc49f5affected · git
    • 07120f1abdff80f3d1351f733661abe28d609535 and later · before e358d4b6225e4c1eb208686a05e360ef8df59e07affected · git
    • 07120f1abdff80f3d1351f733661abe28d609535 and later · before d3cc7476b89fb45b7e00874f4f56f6b928467c60affected · git
    • 07120f1abdff80f3d1351f733661abe28d609535 and later · before dcdf36f1b67884c722abce9b8946e34ffb9f67c8affected · git
    • 07120f1abdff80f3d1351f733661abe28d609535 and later · before 39fc2742ca14f7fbc621ce9b43bcbd00248cb9a8affected · git
    • 07120f1abdff80f3d1351f733661abe28d609535 and later · before ae668cd567a6a7622bc813ee0bb61c42bed61ba7affected · git
    • before 5.9not affected · semver
    • 5.10.242 and later · up to and including 5.10.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.153-16.1.153-1
Debian:13linuxbefore 6.12.48-16.12.48-1
Debian:14linuxbefore 6.16.5-16.16.5-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2025-39833Sep 16, 2025 · mISDN: hfcpci: Fix warning when deleting uninitialized timer
    22Monitor
  • ← EarlierCVE-2025-39834Sep 16, 2025 · net/mlx5: HWS, Fix memory leak in hws_action_get_shared_stc_nic error flow
    22Monitor
  • Later →CVE-2025-39836Sep 16, 2025 · efi: stmm: Fix incorrect buffer allocation method
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux157ddfb05961c68ab7d457a462822a698e4e4bf4Vendor (CNA)
Linux Linux39fc2742ca14f7fbc621ce9b43bcbd00248cb9a8Vendor (CNA)
Linux Linux90bae69c2959c39912f0c2f07a9a7894f3fc49f5Vendor (CNA)
Linux Linuxae668cd567a6a7622bc813ee0bb61c42bed61ba7Vendor (CNA)
Linux Linuxd3cc7476b89fb45b7e00874f4f56f6b928467c60Vendor (CNA)
Linux Linuxdcdf36f1b67884c722abce9b8946e34ffb9f67c8Vendor (CNA)
Linux Linuxe358d4b6225e4c1eb208686a05e360ef8df59e07Vendor (CNA)
cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.05.15.200.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.153-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (9 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records