CVE-2024-56750

erofs: fix blksize < PAGE_SIZE for file-backed mounts

Medium · published December 29, 2024

CVSS v3.1
5.5
EPSS
0%
Percentile
6.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00175 · 6.7th percentile
Published
2024-12-29T11:30Z
EPSS history
Timeline
  • 29 DEC 11:30Z
    erofs: fix blksize < PAGE_SIZE for file-backed mounts
    cvelistv5