CVE-2024-56750

erofs: fix blksize < PAGE_SIZE for file-backed mounts

State: Published
Severity: 5.5 Medium
Published: Dec 29, 2024
Updated: May 11, 2026
Reserved: Dec 29, 2024

Read the record on cve.org

Description

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

erofs: fix blksize < PAGE_SIZE for file-backed mounts

Adjust sb->s_blocksize{,_bits} directly for file-backed mounts when the fs block size is smaller than PAGE_SIZE.

Previously, EROFS used sb_set_blocksize(), which caused a panic if bdev-backed mounts is not used.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	fb176750266a3d7f42ebdcf28e8ba40350b27847 to before 679d8537e5748241c71ac97a6b6dc919eae31716Affected fb176750266a3d7f42ebdcf28e8ba40350b27847 to before bae0854160939a64a092516ff1b2f221402b843bAffected
LinuxLinux	6.12Affected before 6.12Not affected 6.12.2 through 6.12.*Not affected 6.13 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.