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().
CVSS
No CVSS.
References
Configurations
No configuration.
History
No history.
Information
Published : 2024-07-16 12:15
Updated : 2024-07-16 13:43
NVD link : CVE-2022-48828
Mitre link : CVE-2022-48828
CVE.ORG link : CVE-2022-48828
JSON object : View
Products Affected
No product.
CWE
No CWE.