Bug 2426070 (CVE-2023-54297) - CVE-2023-54297 kernel: btrfs: zoned: fix memory leak after finding block group with super blocks
Summary: CVE-2023-54297 kernel: btrfs: zoned: fix memory leak after finding block grou...
Keywords:
Status: NEW
Alias: CVE-2023-54297
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
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Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-30 13:06 UTC by OSIDB Bzimport
Modified: 2025-12-31 11:28 UTC (History)
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Description OSIDB Bzimport 2025-12-30 13:06:36 UTC
In the Linux kernel, the following vulnerability has been resolved:

btrfs: zoned: fix memory leak after finding block group with super blocks

At exclude_super_stripes(), if we happen to find a block group that has
super blocks mapped to it and we are on a zoned filesystem, we error out
as this is not supposed to happen, indicating either a bug or maybe some
memory corruption for example. However we are exiting the function without
freeing the memory allocated for the logical address of the super blocks.
Fix this by freeing the logical address.


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