CVE-2022-48779
net: mscc: ocelot: fix use-after-free in ocelot_vlan_del()
- State
- Published
- Severity
- 7.8 High
- Published
- Jul 16, 2024
- Updated
- Aug 5, 2026
- Reserved
- Jun 20, 2024
Description
In the Linux kernel, the following vulnerability has been resolved:
net: mscc: ocelot: fix use-after-free in ocelot_vlan_del()
ocelot_vlan_member_del() will free the struct ocelot_bridge_vlan, so if this is the same as the port's pvid_vlan which we access afterwards, what we're accessing is freed memory.
Fix the bug by determining whether to clear ocelot_port->pvid_vlan prior to calling ocelot_vlan_member_del().
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Linux |
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
LinuxLinux |
|
LinuxLinux |
|
References
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