Bug 2345213 (CVE-2025-21699) - CVE-2025-21699 kernel: gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag
Summary: CVE-2025-21699 kernel: gfs2: Truncate address space when flipping GFS2_DIF_JD...
Keywords:
Status: NEW
Alias: CVE-2025-21699
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-02-12 14:04 UTC by OSIDB Bzimport
Modified: 2025-02-17 11:05 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-02-12 14:04:49 UTC 
In the Linux kernel, the following vulnerability has been resolved:

gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag

Truncate an inode's address space when flipping the GFS2_DIF_JDATA flag:
depending on that flag, the pages in the address space will either use
buffer heads or iomap_folio_state structs, and we cannot mix the two.
Comment 1 Robb Gatica 2025-02-12 20:47:47 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025021202-CVE-2025-21699-029f@gregkh/T
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