Bug 2440655 (CVE-2025-71230)

Summary: CVE-2025-71230 kernel: hfs: ensure sb->s_fs_info is always cleaned up
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2026-02-18 16:02:33 UTC 
In the Linux kernel, the following vulnerability has been resolved:

hfs: ensure sb->s_fs_info is always cleaned up

When hfs 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
hfs_fill_super() takes ownership of the filesystem-specific s_fs_info
data it was leaked.

Fix this by freeing sb->s_fs_info in hfs_kill_super().
Comment 1 Alexander B 2026-02-18 18:05:23 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026021804-CVE-2025-71230-8e25@gregkh/T