DEBIAN-CVE-2021-47040
- Source
- https://security-tracker.debian.org/tracker/CVE-2021-47040
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47040.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2021-47040
- Upstream
- Published
- 2024-02-28T09:15:39Z
- Modified
- 2025-09-25T22:40:28Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved: iouring: fix overflows checks in provide buffers Colin reported before possible overflow and sign extension problems in ioprovidebuffersprep(). As Linus pointed out previous attempt did nothing useful, see d81269fecb8ce ("iouring: fix providebuffers sign extension"). Do that with help of check<op>overflow helpers. And fix struct ioprovidebuf::len type, as it doesn't make much sense to keep it signed.
- References
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:14 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source