Bug 2334832 (CVE-2024-56750) - CVE-2024-56750 kernel: erofs: fix blksize < PAGE_SIZE for file-backed mounts
Summary: CVE-2024-56750 kernel: erofs: fix blksize < PAGE_SIZE for file-backed mounts
Keywords:
Status: NEW
Alias: CVE-2024-56750
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-12-29 12:02 UTC by OSIDB Bzimport
Modified: 2024-12-30 03:33 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2024-12-29 12:02:55 UTC 
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.
Comment 1 Avinash Hanwate 2024-12-30 03:29:50 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024122927-CVE-2024-56750-db4d@gregkh/T
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