CVE-2026-98689: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Don't access a DP tunnel after its DPRX read was canceled tb_dp_dprx_work() checks ->dprx_canceled before it takes tb->lock so it misses a tb_dp_dprx_stop() that could not cancel the already running work. It then polls the DPRX capabilities and runs the callback for a tunnel that has already been torn down while the domain is suspending or going away. This can be hit by cancelling the DPRX read from outside the ordered tb->wq: During suspend tb_disconnect_and_release_dp() does just this and with a later patch tb_stop() will do it as well. The latter in combination with the Apple NHI where the DPRX read never completed is how I hit this. Check the flag with tb->lock held instead and check it again in tb_dp_tunnel_active() because the callback runs after the lock has been dropped again. Also clear the flag in tb_dp_dprx_start() so that it only ever describes the work that is currently in flight.

Засегнати продукти

• Linux Linux: d6d458d42e1e1544a18f37f1d5c840e00d5261b9 преди 405a969c0b3356639116db89ab367be1d64b77c0; d6d458d42e1e1544a18f37f1d5c840e00d5261b9 преди 2c2fd6a7fd5e1218db7e17336fc1a0393b6949e6; d6d458d42e1e1544a18f37f1d5c840e00d5261b9 преди 419fa32fa5bc2d7fb9d0d15d5630b1c1090808b3
• Linux Linux: 6.14; преди 6.14; 6.18.56 до 6.18.*; 7.2.10 до 7.2.*; 7.3 до *

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-98689
• https://nvd.nist.gov/vuln/detail/CVE-2026-98689
• https://git.kernel.org/stable/c/405a969c0b3356639116db89ab367be1d64b77c0
• https://git.kernel.org/stable/c/2c2fd6a7fd5e1218db7e17336fc1a0393b6949e6
• https://git.kernel.org/stable/c/419fa32fa5bc2d7fb9d0d15d5630b1c1090808b3