CVE-2022-48828 Affecting kernel-tools package, versions <0:4.18.0-305.138.1.el8_4
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Test your applications- Snyk ID SNYK-RHEL8-KERNELTOOLS-7682901
- published 14 Aug 2024
- disclosed 16 Jul 2024
Introduced: 16 Jul 2024
CVE-2022-48828 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-tools to version 0:4.18.0-305.138.1.el8_4 or higher.
This issue was patched in RHSA-2024:5266.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-tools package and not the kernel-tools package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
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().
References
- https://access.redhat.com/security/cve/CVE-2022-48828
- https://git.kernel.org/stable/c/38d02ba22e43b6fc7d291cf724bc6e3b7be6626b
- https://git.kernel.org/stable/c/8e0ecaf7a7e57b30284d6b3289cc436100fadc48
- https://git.kernel.org/stable/c/da22ca1ad548429d7822011c54cfe210718e0aa7
- https://git.kernel.org/stable/c/e6faac3f58c7c4176b66f63def17a34232a17b0e