High · CVSS 7.8CVE-2022-48816

SUNRPC: lock against ->sock changing during sysfs readCVE-2022-48816

Answer in brief

CVE-2022-48816 records a High severity (CVSS 7.8) vulnerability in SUNRPC: lock against ->sock changing during sysfs read. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 16, 2024Updated Oct 3, 2026Source checked Nov 3, 2026First seen by HOL Aug 4, 2026Material review Oct 3, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.8
Exploitation: Not marked as known exploited
Affected software: 7 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 7.8. 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.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
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

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=a8482488a7d6d320f63a9ee1912dbb5ae5b80a61 <fdc42287ae3f8a35cc2098307f52d7864b4bc8ed \|\| >=a8482488a7d6d320f63a9ee1912dbb5ae5b80a61 <9482ab4540f5bcc869b44c067ae99b5fca16bd07 \|\| >=a8482488a7d6d320f63a9ee1912dbb5ae5b80a61 <b49ea673e119f59c71645e2f65b3ccad857c90ee \|\| 21a2be1a5145d072deedc7cdc5b2d17380abea75 \|\| 77876473912d1bf1ed16bffa1674e5ff0f499f25 \|\| >=5.10.67 <5.11 \|\| >=5.13.19 <5.14	fdc42287ae3f8a35cc2098307f52d7864b4bc8ed, 9482ab4540f5bcc869b44c067ae99b5fca16bd07, b49ea673e119f59c71645e2f65b3ccad857c90ee, 5.11, 5.14
Linux/Linuxgeneric	5.14	Not reported
Linux/Linuxgeneric	>=21a2be1a5145d072deedc7cdc5b2d17380abea75 <cd366b9091a3e6ed8229e4b908e895d20b527dc0 \|\| >=a8482488a7d6d320f63a9ee1912dbb5ae5b80a61 <fdc42287ae3f8a35cc2098307f52d7864b4bc8ed \|\| >=a8482488a7d6d320f63a9ee1912dbb5ae5b80a61 <9482ab4540f5bcc869b44c067ae99b5fca16bd07 \|\| >=a8482488a7d6d320f63a9ee1912dbb5ae5b80a61 <b49ea673e119f59c71645e2f65b3ccad857c90ee \|\| 77876473912d1bf1ed16bffa1674e5ff0f499f25 \|\| >=5.10.67 <5.10.271 \|\| >=5.13.19 <5.14	cd366b9091a3e6ed8229e4b908e895d20b527dc0, fdc42287ae3f8a35cc2098307f52d7864b4bc8ed, 9482ab4540f5bcc869b44c067ae99b5fca16bd07, b49ea673e119f59c71645e2f65b3ccad857c90ee, 5.10.271, 5.14

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to fdc42287ae3f8a35cc2098307f52d7864b4bc8ed; Linux/Linux to cd366b9091a3e6ed8229e4b908e895d20b527dc0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jul 16, 2024
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 4, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: lock against ->sock changing during sysfs read ->sock can be set to NULL asynchronously unless ->recv_mutex is held. So it is important to hold that mutex. Otherwise a sysfs read can trigger an oops. Commit 17f09d3f619a ("SUNRPC: Check if the xprt is connected before handling sysfs reads") appears to attempt to fix this problem, but it only narrows the race window.

Quoted source text, attributed separately from HOL analysis.

MongoDB C Driver Modern GridFS mongoc_gridfs_bucket_download_to_stream() Aborts Application on Malformed GridFS MetadataAlso CWE-476