Bug 2347723 (CVE-2022-49280) - CVE-2022-49280 kernel: NFSD: prevent underflow in nfssvc_decode_writeargs()
Summary: CVE-2022-49280 kernel: NFSD: prevent underflow in nfssvc_decode_writeargs()
Keywords:
Status: NEW
Alias: CVE-2022-49280
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: 2025-02-26 03:04 UTC by OSIDB Bzimport
Modified: 2025-02-26 15:48 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2025-02-26 03:04:29 UTC 
In the Linux kernel, the following vulnerability has been resolved:

NFSD: prevent underflow in nfssvc_decode_writeargs()

Smatch complains:

	fs/nfsd/nfsxdr.c:341 nfssvc_decode_writeargs()
	warn: no lower bound on 'args->len'

Change the type to unsigned to prevent this issue.
Comment 1 Avinash Hanwate 2025-02-26 11:28:04 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022631-CVE-2022-49280-8de2@gregkh/T
Comment 4 Avinash Hanwate 2025-02-26 15:47:59 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022631-CVE-2022-49280-8de2@gregkh/T
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