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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-48828 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix ia_size underflow iattr::ia_size is a loff_t, which is a signed 64-bit type. NFSv3 and NFSv4 both define file size as an unsigned 64-bit type. Thus there is a range of valid file size values an NFS client can send that is already larger than Linux can handle. Currently decode_fattr4() dumps a full u64 value into ia_size. If that value happens to be larger than S64_MAX, then ia_size underflows. I'm about to fix up the NFSv3 behavior as well, so let's catch the underflow in the common code path: nfsd_setattr().


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/38d02ba22e43b6fc7d291cf724bc6e3b7be6626b CVE, kernel.org Patch 
https://git.kernel.org/stable/c/8e0ecaf7a7e57b30284d6b3289cc436100fadc48 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/d2211e6e34d0755f35e2f8c22d81999fa81cfc71 kernel.org Patch 
https://git.kernel.org/stable/c/da22ca1ad548429d7822011c54cfe210718e0aa7 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/e6faac3f58c7c4176b66f63def17a34232a17b0e CVE, kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-191 Integer Underflow (Wrap or Wraparound) cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-48828
NVD Published Date:
07/16/2024
NVD Last Modified:
09/25/2025
Source:
kernel.org