ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2026-64312

crypto: pcrypt - restore callback for non-parallel fallback

Published Jul 25, 2026 · catalog updated Oct 26, 2026 · crypto: pcrypt - restore

Last checked Nov 1, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-64312. EPSS is 0.50%. Act only if a listed version of crypto: pcrypt - restore is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (crypto: pcrypt - restore).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.50%
Remediation
Not established
Affected products
Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - restore callback for non-parallel fallback pcrypt installs pcrypt_aead_done() on the child AEAD request before trying to submit it through padata. If padata_do_parallel() returns -EBUSY, pcrypt falls back to calling the child AEAD directly. That fallback must not keep the padata completion callback. Otherwise an asynchronous completion runs pcrypt_aead_done() even though the request was never enrolled in padata. Restore the original request callback and callback data before calling the child AEAD directly. This keeps the fallback path aligned with a direct AEAD request while leaving the parallel path unchanged.

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.

  • Linux Kernel0 → 5.10.261; 5.11.0 → 5.15.212; 5.16.0 → 6.1.178

How to fix CVE-2026-64312

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-2026-64312. EPSS is 0.50%. Act only if a listed version of crypto: pcrypt - restore is installed.

Which versions are affected?

Compare what you have installed with Kernel 0 → 5.10.261; 5.11.0 → 5.15.212; 5.16.0 → 6.1.178. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.50%. 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. Jul 25, 2026 · OpenSSF OSV / OSV Scanner

    Detected

    In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - restore callback for non-parallel fallback pcrypt installs pcrypt_aead_done() on the child AEAD request before trying to submit it through padata. If padata_do_parallel() returns -EBUSY, pcrypt falls back to calling the child AEAD directly. That fallback must not keep the padata completion callback. Otherwise an a

  2. Oct 26, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    Kernel fixed in 5.10.261; Kernel fixed in 5.15.212; Kernel fixed in 6.1.178; Kernel fixed in 6.6.145

  3. Oct 26, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    Kernel fixed in 5.10.261; 5.11.0

  4. Oct 26, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - restore callback for non-parallel fallback pcrypt installs pcrypt_aead_done() on the child AEAD request before trying to submit it through padata. If padata_do_parallel() returns -EBUSY, pcrypt falls back to calling the child AEAD directly. That fallback must not keep the padata completion callback. Otherwise an a

Sources

References

Freshness

Last verified in this catalog Nov 1, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • BSI CERT-BundOct 27, 2026
  • OpenSSF OSV / OSV ScannerOct 26, 2026
  • CVE.orgOct 26, 2026