In the Linux kernel, the following vulnerability has been resolved:
ref_tracker: implement use-after-free detection
Whenever ref_tracker_dir_init() is called, mark the struct ref_tracker_dir as dead.
Test the dead status from ref_tracker_alloc() and ref_tracker_free()
This should detect buggy dev_put()/dev_hold() happening too late in netdevice dismantle process.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | debian-upgrade-linux | Feb 27, 2025 | Feb 27, 2025 | |
| Redhat_linux | — | no-fix-redhat-rpm-package | Jul 9, 2025 | Feb 26, 2025 |
| Ubuntu | no-fix-ubuntu-package | Jun 26, 2025 | Feb 26, 2025 |
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