DEBIAN-CVE-2025-40255
- Source
- https://security-tracker.debian.org/tracker/CVE-2025-40255
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-40255.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-40255
- Upstream
- Published
- 2025-12-04T16:16:19.227Z
- Modified
- 2026-03-17T02:49:57.824581Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved: net: core: prevent NULL deref in generichwtstampioctllower() The ethtool tsconfig Netlink path can trigger a null pointer dereference. A call chain such as: tsconfigpreparedata() -> devgethwtstampphylib() -> vlanhwtstampget() -> generichwtstampgetlower() -> generichwtstampioctllower() results in generichwtstampioctllower() being called with kernelcfg->ifr as NULL. The generichwtstampioctllower() function does not expect a NULL ifr and dereferences it, leading to a system crash. Fix this by adding a NULL check for kernelcfg->ifr in generichwtstampioctl_lower(). If ifr is NULL, return -EINVAL.
- References
Affected packages
Debian:14 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed6.17.10-1
Affected versions
6.*
6.12.38-1
6.12.41-1
6.12.43-1~bpo12+1
6.12.43-1
6.12.48-1
6.12.57-1~bpo12+1
6.12.57-1
6.12.63-1~bpo12+1
6.12.63-1
6.12.69-1~bpo12+1
6.12.69-1
6.12.73-1~bpo12+1
6.12.73-1
6.12.74-1
6.12.74-2~bpo12+1
6.12.74-2
6.13~rc6-1~exp1
6.13~rc7-1~exp1
6.13.2-1~exp1
6.13.3-1~exp1
6.13.4-1~exp1
6.13.5-1~exp1
6.13.6-1~exp1
6.13.7-1~exp1
6.13.8-1~exp1
6.13.9-1~exp1
6.13.10-1~exp1
6.13.11-1~exp1
6.14.3-1~exp1
6.14.5-1~exp1
6.14.6-1~exp1
6.15~rc7-1~exp1
6.15-1~exp1
6.15.1-1~exp1
6.15.2-1~exp1
6.15.3-1~exp1
6.15.4-1~exp1
6.15.5-1~exp1
6.15.6-1~exp1
6.16~rc7-1~exp1
6.16-1~exp1
6.16.1-1~exp1
6.16.3-1~bpo13+1
6.16.3-1
6.16.5-1
6.16.6-1
6.16.7-1
6.16.8-1
6.16.9-1
6.16.10-1
6.16.11-1
6.16.12-1~bpo13+1
6.16.12-1
6.16.12-2
6.17.2-1~exp1
6.17.5-1~exp1
6.17.6-1
6.17.7-1
6.17.7-2
6.17.8-1~bpo13+1
6.17.8-1
6.17.9-1