Description
In the Linux kernel, the following vulnerability has been resolved: tee: optee: Fix supplicant wait loop OP-TEE supplicant is a user-space daemon and it's possible for it be hung or crashed or killed in the middle of processing an OP-TEE RPC call. It becomes more complicated when there is incorrect shutdown ordering of the supplicant process vs the OP-TEE client application which can eventually lead to system hang-up waiting for the closure of the client application. Allow the client process waiting in kernel for supplicant response to be killed rather than indefinitely waiting in an unkillable state. Also, a normal uninterruptible wait should not have resulted in the hung-task watchdog getting triggered, but the endless loop would. This fixes issues observed during system reboot/shutdown when supplicant got hung for some reason or gets crashed/killed which lead to client getting hung in an unkillable state. It in turn lead to system being in hung up state requiring hard power off/on to recover.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2 to < 3eb4911364c764572e9db4ab900a57689a54e8ceaffected4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2 to < 0180cf0373f84fff61b16f8c062553a13dd7cfcaaffected4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2 to < c0a9a948159153be145f9471435695373904ee6daffected4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2 to < ec18520f5edc20a00c34a8c9fdd6507c355e880faffected4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2 to < d61cc1a435e6894bfb0dd3370c6f765d2d12825daffected4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2 to < fd9d2d6124c293e40797a080adf8a9c237efd8b8affected4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2 to < 21234efe2a8474a6d2d01ea9573319de7858ce44affected4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2 to < 70b0d6b0a199c5a3ee6c72f5e61681ed6f759612affected
Linux Linux
Default version status: affected
4.12affected0 to < 4.12unaffected5.4.291 to ≤ 5.4.*unaffected5.10.235 to ≤ 5.10.*unaffected5.15.179 to ≤ 5.15.*unaffected6.1.130 to ≤ 6.1.*unaffected6.6.80 to ≤ 6.6.*unaffected6.12.17 to ≤ 6.12.*unaffected6.13.5 to ≤ 6.13.*unaffected6.14 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/3eb4911364c764572e9db4ab900a57689a54e8ce ↗
- https://git.kernel.org/stable/c/0180cf0373f84fff61b16f8c062553a13dd7cfca ↗
- https://git.kernel.org/stable/c/c0a9a948159153be145f9471435695373904ee6d ↗
- https://git.kernel.org/stable/c/ec18520f5edc20a00c34a8c9fdd6507c355e880f ↗
- https://git.kernel.org/stable/c/d61cc1a435e6894bfb0dd3370c6f765d2d12825d ↗
- https://git.kernel.org/stable/c/fd9d2d6124c293e40797a080adf8a9c237efd8b8 ↗
- https://git.kernel.org/stable/c/21234efe2a8474a6d2d01ea9573319de7858ce44 ↗
- https://git.kernel.org/stable/c/70b0d6b0a199c5a3ee6c72f5e61681ed6f759612 ↗
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html ↗
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html ↗