CVE-2025-71271

MEDIUM5.5

hfsplus: ensure sb->s_fs_info is always cleaned up

Published May 6, 2026

Modified 1 weeks ago

Details

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

hfsplus: ensure sb->s_fs_info is always cleaned up

When hfsplus was converted to the new mount api a bug was introduced by changing the allocation pattern of sb->s_fs_info. If setup_bdev_super() fails after a new superblock has been allocated by sget_fc(), but before hfsplus_fill_super() takes ownership of the filesystem-specific s_fs_info data it was leaked.

Fix this by freeing sb->s_fs_info in hfsplus_kill_super().

References

WEB

https://git.kernel.org/stable/c/0bcfebb83b5460d5be4e5c9dfb19cdaf3d4cb1db

WEB

https://git.kernel.org/stable/c/126fb0ce99431126b44a6c360192668c818f641f

WEB

https://git.kernel.org/stable/c/1e38d32bb04d85a2c81204a85a34878a497128c8

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2025-71271

CVSS Analysis

CVSS v3.1