linux: In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix ia_size underflow iattr::ia_size is a...
CVE-2022-48828 is fixed in 9 products on 1 platform, first by DEBIAN-CVE-2022-48828, released July 16, 2024. It is not reported as exploited. Patch Radar priority: Routine.
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().
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| kernel-uek · ol 8 | 0:5.4.17-2136.347.6.el7uek | ELSA-2025-20553 | Sep 9, 2025 |
| kernel-uek-container · ol 8 | 0:5.4.17-2136.347.6.el7uek | ELSA-2025-20553 | Sep 9, 2025 |
| kernel-uek-container-debug · ol 8 | 0:5.4.17-2136.347.6.el7uek | ELSA-2025-20553 | Sep 9, 2025 |
| kernel-uek-debug · ol 8 | 0:5.4.17-2136.347.6.el7uek | ELSA-2025-20553 | Sep 9, 2025 |
| kernel-uek-debug-devel · ol 8 | 0:5.4.17-2136.347.6.el7uek | ELSA-2025-20553 | Sep 9, 2025 |
| kernel-uek-devel · ol 8 | 0:5.4.17-2136.347.6.el7uek | ELSA-2025-20553 | Sep 9, 2025 |
| kernel-uek-doc · ol 8 | 0:5.4.17-2136.347.6.el7uek | ELSA-2025-20553 | Sep 9, 2025 |
| kernel-uek-tools · ol 8 | 0:5.4.17-2136.347.6.el7uek | ELSA-2025-20553 | Sep 9, 2025 |
| linux · Debian 12.15 (bookworm) | 5.16.10-1 | DEBIAN-CVE-2022-48828 | Jul 16, 2024 |
| linux · Debian 13.5 (trixie) | 5.16.10-1 | DEBIAN-CVE-2022-48828 | Jul 16, 2024 |
| linux · Debian 14 | 5.16.10-1 | DEBIAN-CVE-2022-48828 | Jul 16, 2024 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.