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Vulnerabilities

Vulnerability · CVE-2025-68821

In the Linux kernel, the following vulnerability has been resolved: fuse: fix readahead reclaim deadlock Commit e26ee4efbc79 ("fuse: allocate ff->release_args only if release is ne

Published Jan 13, 2026 · catalog updated May 23, 2026 · Linux Linux

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-68821. EPSS is 0.21%. Act only if a listed version of Linux Linux is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
None0.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.21%
Remediation
Version ranges on file
Affected products
vendor Linux Linux 7d38aa079ed859b73f4460aab89c7619b04963b8 <4703bc0e8cd3409acb1476a70cb5b7ff943cf39a

In the Linux kernel, the following vulnerability has been resolved: fuse: fix readahead reclaim deadlock Commit e26ee4efbc79 ("fuse: allocate ff->release_args only if release is needed") skips allocating ff->release_args if the server does not implement open. However in doing so, fuse_prepare_release() now skips grabbing the reference on the inode, which makes it possible for an inode to be evicted from the dcache while there are inflight readahead requests. This causes a deadlock if the server triggers reclaim while servicing the readahead request and reclaim attempts to evict the inode of th

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.

  • vendor Linux Linux 7d38aa079ed859b73f4460aab89c7619b04963b8 <4703bc0e8cd3409acb1476a70cb5b7ff943cf39a7d38aa079ed859b73f4460aab89c7619b04963b8 <4703bc0e8cd3409acb1476a70cb5b7ff943cf39a

How to fix CVE-2025-68821

  • Upgrade

    CVE-2025-68821 lists a fix boundary at 4703bc0e8cd3409acb1476a70cb5b7ff943cf39a. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in 7d38aa079ed859b73f4460aab89c7619b04963b8 <4703bc0e8cd3409acb1476a70cb5b7ff943cf39a

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

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

Should you patch?

No confirmed exploitation is on record for CVE-2025-68821. EPSS is 0.21%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux 7d38aa079ed859b73f4460aab89c7619b04963b8 <4703bc0e8cd3409acb1476a70cb5b7ff943cf39a 7d38aa079ed859b73f4460aab89c7619b04963b8 <4703bc0e8cd3409acb1476a70cb5b7ff943cf39a. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.21%. 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. Jan 13, 2026 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: fuse: fix readahead reclaim deadlock Commit e26ee4efbc79 ("fuse: allocate ff->release_args only if release is needed") skips allocating ff->release_args if the server does not implement open. However in doing so, fuse_prepare_release() now skips grabbing the reference on the inode, which makes it possible for an inode to be evicte

  2. May 23, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: fuse: fix readahead reclaim deadlock Commit e26ee4efbc79 ("fuse: allocate ff->release_args only if release is needed") skips allocating ff->release_args if the server does not implement open. However in doing so, fuse_prepare_release() now skips grabbing the reference on the inode, which makes it possible for an inode to be evicte

Sources

  • CVE.orgVulnerability recordCVE-2025-68821

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-68821

    30-day exploitation probability 0.21%

    first.org
  • EUVDVulnerability recordEUVD-2026-2272

    In the Linux kernel, the following vulnerability has been resolved: fuse: fix readahead reclaim deadlock Commit e26ee4efbc79 ("fuse: allocate ff->release_args only if release is needed") skips allocating ff->release_args if the server does not implement open. However in doing so,

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 29, 2026
  • FIRST EPSSOct 29, 2026
  • EUVDOct 29, 2026