Answer in brief
CVE-2022-48828 records a Critical severity (CVSS 9.1) vulnerability in NFSD: Fix ia_size underflow. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d2211e6e34d0755f35e2f8c22d81999fa81cfc71 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <38d02ba22e43b6fc7d291cf724bc6e3b7be6626b || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8e0ecaf7a7e57b30284d6b3289cc436100fadc48 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <da22ca1ad548429d7822011c54cfe210718e0aa7 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e6faac3f58c7c4176b66f63def17a34232a17b0e | d2211e6e34d0755f35e2f8c22d81999fa81cfc71, 38d02ba22e43b6fc7d291cf724bc6e3b7be6626b, 8e0ecaf7a7e57b30284d6b3289cc436100fadc48, da22ca1ad548429d7822011c54cfe210718e0aa7, e6faac3f58c7c4176b66f63def17a34232a17b0e |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
Jul 16, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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().
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2022-48828 records a Critical severity (CVSS 9.1) vulnerability in NFSD: Fix ia_size underflow. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d2211e6e34d0755f35e2f8c22d81999fa81cfc71 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <38d02ba22e43b6fc7d291cf724bc6e3b7be6626b || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8e0ecaf7a7e57b30284d6b3289cc436100fadc48 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <da22ca1ad548429d7822011c54cfe210718e0aa7 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e6faac3f58c7c4176b66f63def17a34232a17b0e | d2211e6e34d0755f35e2f8c22d81999fa81cfc71, 38d02ba22e43b6fc7d291cf724bc6e3b7be6626b, 8e0ecaf7a7e57b30284d6b3289cc436100fadc48, da22ca1ad548429d7822011c54cfe210718e0aa7, e6faac3f58c7c4176b66f63def17a34232a17b0e |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
Jul 16, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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().
Quoted source text, attributed separately from HOL analysis.