Riskcovery

CVE-2023-53473

ext4: improve error handling from ext4_dirhash()

State
Published
Severity
7.8 High
Published
Oct 1, 2025
Updated
Oct 15, 2026
Reserved
Oct 1, 2025

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

ext4: improve error handling from ext4_dirhash()

The ext4_dirhash() will *almost* never fail, especially when the hash tree feature was first introduced. However, with the addition of support of encrypted, casefolded file names, that function can most certainly fail today.

So make sure the callers of ext4_dirhash() properly check for failures, and reflect the errors back up to their callers.

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • b886ee3e778ec2ad43e276fd378ab492cf6819b7 to before b2531936118deb3f479c4fa1bcd787b74b8faa6aAffected
  • b886ee3e778ec2ad43e276fd378ab492cf6819b7 to before f68876aeef96ef8b708ab10b9cb47ce0a5adb424Affected
  • b886ee3e778ec2ad43e276fd378ab492cf6819b7 to before 70d579aefa652a06af97e013e3fbbabbe5a43553Affected
  • b886ee3e778ec2ad43e276fd378ab492cf6819b7 to before c1fae027da61fe8e7eb99f7244297e81bc0f1e43Affected
  • b886ee3e778ec2ad43e276fd378ab492cf6819b7 to before 4b3cb1d108bfc2aebb0d7c8a52261a53cf7f5786Affected
LinuxLinux
  • 5.2Affected
  • before 5.2Not affected
  • 5.15.112 through 5.15.*Not affected
  • 6.1.29 through 6.1.*Not affected
  • 6.2.16 through 6.2.*Not affected
  • 6.3.3 through 6.3.*Not affected
  • 6.4 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.