AZL-90572
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-90572.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-90572
- Upstream
- Published
- 2026-06-25T09:16:41Z
- Modified
- 2026-08-28T17:47:53Z
- Summary
- CVE-2026-53236 affecting package kernel for versions less than 6.6.143.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
tcp: restrict SO_ATTACH_FILTER to priv users
This patch restricts the use of SO_ATTACH_FILTER (cBPF) on TCP sockets to users with CAP_NET_ADMIN capability.
This blocks potential side-channel attack where an unprivileged application attaches a filter to leak TCP sequence/acknowledgment numbers.
- References