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().
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfoUpgrade python-perf-debuginfoUpgrade perf-debuginfoUpgrade kernelUpgrade kernel-headersUpgrade kernel-debuginfo-common-x86_64Upgrade bpftool-debuginfoUpgrade perfUpgrade kernel-develUpgrade kernel-livepatch-5.10.220-209.867Upgrade kernel-tools-debuginfoUpgrade kernel-tools-develUpgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64Upgrade bpftoolUpgrade python-perf | Dec 12, 2024 | Jul 16, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Jul 30, 2024 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernelUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernel-abi-stablelists | Oct 8, 2024 | Jul 16, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-tools-libsUpgrade kernel-toolsUpgrade python3-perfUpgrade bpftoolUpgrade kernelUpgrade kernel-abi-stablelists | Oct 9, 2024 | Jul 16, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade python3-perfUpgrade kernelUpgrade bpftoolUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernel-abi-stablelists | Nov 26, 2024 | Jul 16, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade kernel-tools-libsUpgrade kernel-toolsUpgrade python3-perfUpgrade kernel | 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-intel-iotg-5.15Upgrade linux-azure-fde-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 |
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