Huawei EulerOS: CVE-2022-48828: kernel security update

Huawei EulerOS: CVE-2022-48828: kernel security update

Severity

4

CVSS

(AV:L/AC:M/Au:N/C:P/I:P/A:P)

Published

07/16/2024

Created

10/09/2024

Added

10/08/2024

Modified

01/13/2025

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().

Solution(s)

• huawei-euleros-2_0_sp10-upgrade-kernel
• huawei-euleros-2_0_sp10-upgrade-kernel-abi-stablelists
• huawei-euleros-2_0_sp10-upgrade-kernel-tools
• huawei-euleros-2_0_sp10-upgrade-kernel-tools-libs
• huawei-euleros-2_0_sp10-upgrade-python3-perf

References

• https://attackerkb.com/topics/cve-2022-48828
• CVE - 2022-48828
• EulerOS-SA-2024-2888