Bug 2347650 (CVE-2022-49316) - CVE-2022-49316 kernel: NFSv4: Don't hold the layoutget locks across multiple RPC calls
Summary: CVE-2022-49316 kernel: NFSv4: Don't hold the layoutget locks across multiple ...
Keywords:
Status: NEW
Alias: CVE-2022-49316
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-02-26 03:01 UTC by OSIDB Bzimport
Modified: 2025-04-03 17:51 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-02-26 03:01:46 UTC 
In the Linux kernel, the following vulnerability has been resolved:

NFSv4: Don't hold the layoutget locks across multiple RPC calls

When doing layoutget as part of the open() compound, we have to be
careful to release the layout locks before we can call any further RPC
calls, such as setattr(). The reason is that those calls could trigger
a recall, which could deadlock.
Comment 1 Mauro Matteo Cascella 2025-02-26 12:59:59 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022636-CVE-2022-49316-3e10@gregkh/T
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