CVE-2026-98251
In the Linux kernel, the following vulnerability has been resolved: openvswitch: avoid…
- Risk score
- 57/100
- CVSS
- 7.8 v3.1
- Exploit chance (30 days)
- 0.1%
- Published
- 6 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- In the Linux kernel, the following vulnerability has been resolved: openvswitch: avoid reallocating confirmed conntrack labels ovs_ct_get_conn_labels() adds the labels extension when a conntrack entry does not have one. Confirmed conntracks can be read locklessly, so adding an extension may reallocate and free the ext…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.8 high
- On your watchlist: linux kernel
References
- https://git.kernel.org/stable/c/05eab8dced6bf4d3009a6eeee16ddac99047dc83
- https://git.kernel.org/stable/c/2e6dd889c325abf23821e1459c3ffef59b7f0009
- https://git.kernel.org/stable/c/3f118c8217c109fd13ca61caa301d72c483897ef
- https://git.kernel.org/stable/c/4371d79ea74407fb992c985b1f94391e35bb8289
- https://git.kernel.org/stable/c/579d87ec1e1e85729a6cb2c25961e58beb78640c
- https://git.kernel.org/stable/c/7ff688aceada1160331a789385ea146f62fbddf7
- https://git.kernel.org/stable/c/8c9fcc6c33950d3db551af664d1fd3d998bfee56
- https://git.kernel.org/stable/c/d16f089bd700f45d720ce989d5495e1dc3be0cf8
Original description
In the Linux kernel, the following vulnerability has been resolved: openvswitch: avoid reallocating confirmed conntrack labels ovs_ct_get_conn_labels() adds the labels extension when a conntrack entry does not have one. Confirmed conntracks can be read locklessly, so adding an extension may reallocate and free the extension block while another CPU accesses it. Only add the extension for unconfirmed conntracks. A confirmed conntrack without labels now fails the caller's label operation instead of reallocating its extension storage.
Last activity 6 Oct 2026. Patch Forecast updates every hour.