CVE-2023-54130

Summary

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

hfs/hfsplus: avoid WARN_ON() for sanity check, use proper error handling

Commit 55d1cbbbb29e ("hfs/hfsplus: use WARN_ON for sanity check") fixed a build warning by turning a comment into a WARN_ON(), but it turns out that syzbot then complains because it can trigger said warning with a corrupted hfs image.

The warning actually does warn about a bad situation, but we are much better off just handling it as the error it is. So rather than warn about us doing bad things, stop doing the bad things and return -EIO.

While at it, also fix a memory leak that was introduced by an earlier fix for a similar syzbot warning situation, and add a check for one case that historically wasn't handled at all (ie neither comment nor subsequent WARN_ON).

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxc886c10a6eddb99923b315f42bf63f448883ef9a < cc2164ada548addfa8ee215196661c3afe0c5154affected
LinuxLinux2344f17c0a89c181ab1a9fef57fd8c3bddfd6e30 < 82725be426bce0a425cc5e26fbad61ffd29cff03affected
LinuxLinux90103ccb6e60aa4efe48993d23d6a528472f2233 < da23752d9660ba7a8ca6c5768fd8776f67f59ee7affected
LinuxLinux4fd3a11804c8877ff11fec59c5c53f1635331e3e < be01f35efa876eb81cebab2cb0add068b7280ef4affected
LinuxLinux48d9e2e6de01ed35e965eb549758a837c07b601d < f10defb0be6ac42fb6a97b45920d32da6bd6fde8affected
LinuxLinux55d1cbbbb29e6656c662ee8f73ba1fc4777532eb < 90e019006644dad35862cb4aa270f561b0732066affected
LinuxLinux55d1cbbbb29e6656c662ee8f73ba1fc4777532eb < 45917be9f0af339a45b4619f31c902d37b8aed59affected
LinuxLinux55d1cbbbb29e6656c662ee8f73ba1fc4777532eb < cb7a95af78d29442b8294683eca4897544b8ef46affected
LinuxLinux8c40f2dbae603ef0bd21e87c63f54ec59fd88256affected
LinuxLinux367296925c7625c3969d2a78d7a3e1dee161beb5affected
LinuxLinux4.9.337 < 4.10affected
LinuxLinux5.16affected
LinuxLinux0 < 5.16unaffected
LinuxLinux6.0.19 <= 6.0.*unaffected
LinuxLinux6.1.5 <= 6.1.*unaffected
LinuxLinux6.2 <= *unaffected

Weaknesses

References