CVE-2023-53473

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxb886ee3e778ec2ad43e276fd378ab492cf6819b7 < b2531936118deb3f479c4fa1bcd787b74b8faa6aaffected
LinuxLinuxb886ee3e778ec2ad43e276fd378ab492cf6819b7 < f68876aeef96ef8b708ab10b9cb47ce0a5adb424affected
LinuxLinuxb886ee3e778ec2ad43e276fd378ab492cf6819b7 < 70d579aefa652a06af97e013e3fbbabbe5a43553affected
LinuxLinuxb886ee3e778ec2ad43e276fd378ab492cf6819b7 < c1fae027da61fe8e7eb99f7244297e81bc0f1e43affected
LinuxLinuxb886ee3e778ec2ad43e276fd378ab492cf6819b7 < 4b3cb1d108bfc2aebb0d7c8a52261a53cf7f5786affected
LinuxLinux5.2affected
LinuxLinux0 < 5.2unaffected
LinuxLinux5.15.112 <= 5.15.*unaffected
LinuxLinux6.1.29 <= 6.1.*unaffected
LinuxLinux6.2.16 <= 6.2.*unaffected
LinuxLinux6.3.3 <= 6.3.*unaffected
LinuxLinux6.4 <= *unaffected

Weaknesses

References