CVE-2026-80520
ovpn: fix NULL dereference when killing missing key
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: ovpn: fix NULL dereference when killing missing key ovpn_crypto_kill_key assumes both crypto slots are populated and dereferences each slot before checking it. That is not guaranteed: a peer can have only one installed key, and the kill path may be asked to remove a key that is not present. Read each slot once while holding the crypto state lock, check for NULL before looking at key_id, and only replace the slot that actually matches.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 26, 2026 |
| Last Updated | Aug 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
89d3c0e4612afa1c6429ed68d298e35592fbe208 < a47a080d06ee9d94dc6a2da0fc2b9beeeedb92b3 89d3c0e4612afa1c6429ed68d298e35592fbe208 < acf32a5dff082044cf0fd9492f3c10b7357c15ee 89d3c0e4612afa1c6429ed68d298e35592fbe208 < 41d44ac7a61e2f74453af40d4fe1b82af9ea0ada
Linux / Linux
6.16