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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.

PUBLISHED Reserved 2025-10-01 | Published 2025-10-01 | Updated 2025-10-29 | Assigner Linux

Product status

Default status
unaffected

b886ee3e778ec2ad43e276fd378ab492cf6819b7 (git) before b2531936118deb3f479c4fa1bcd787b74b8faa6a
affected

b886ee3e778ec2ad43e276fd378ab492cf6819b7 (git) before f68876aeef96ef8b708ab10b9cb47ce0a5adb424
affected

b886ee3e778ec2ad43e276fd378ab492cf6819b7 (git) before 70d579aefa652a06af97e013e3fbbabbe5a43553
affected

b886ee3e778ec2ad43e276fd378ab492cf6819b7 (git) before c1fae027da61fe8e7eb99f7244297e81bc0f1e43
affected

b886ee3e778ec2ad43e276fd378ab492cf6819b7 (git) before 4b3cb1d108bfc2aebb0d7c8a52261a53cf7f5786
affected

Default status
affected

5.2
affected

Any version before 5.2
unaffected

5.15.112 (semver)
unaffected

6.1.29 (semver)
unaffected

6.2.16 (semver)
unaffected

6.3.3 (semver)
unaffected

6.4 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/b2531936118deb3f479c4fa1bcd787b74b8faa6a

git.kernel.org/...c/f68876aeef96ef8b708ab10b9cb47ce0a5adb424

git.kernel.org/...c/70d579aefa652a06af97e013e3fbbabbe5a43553

git.kernel.org/...c/c1fae027da61fe8e7eb99f7244297e81bc0f1e43

git.kernel.org/...c/4b3cb1d108bfc2aebb0d7c8a52261a53cf7f5786

cve.org (CVE-2023-53473)

nvd.nist.gov (CVE-2023-53473)

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