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 Details
- CVSS 3.1 Base Score: 9.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade perf-debuginfoUpgrade python-perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade kernel-headersUpgrade kernelUpgrade python-perfUpgrade kernel-livepatch-5.10.220-209.867Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-debuginfoUpgrade kernel-tools-develUpgrade kernel-toolsUpgrade perfUpgrade bpftoolUpgrade kernel-devel | Dec 12, 2024 | Jul 16, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Jul 30, 2024 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade kernelUpgrade kernel-tools-libsUpgrade kernel-tools | Oct 8, 2024 | Jul 16, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-tools-libsUpgrade bpftoolUpgrade kernel-toolsUpgrade python3-perfUpgrade kernelUpgrade kernel-abi-stablelists | Oct 9, 2024 | Jul 16, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade python3-perfUpgrade kernelUpgrade kernel-tools-libsUpgrade bpftoolUpgrade kernel-abi-stablelistsUpgrade kernel-tools | Nov 26, 2024 | Jul 16, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade python3-perfUpgrade kernelUpgrade kernel-tools-libsUpgrade kernel-tools | Oct 8, 2024 | Jul 16, 2024 |
| Oracle_linux | — | Upgrade kernel-uek | Sep 11, 2025 | Jul 16, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jul 16, 2024 |
| Ubuntu | — | Upgrade linux-azure-fde-5.15Upgrade linux-intel-iotg-5.15 | Nov 19, 2024 | Jul 16, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Jul 16, 2024 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub