Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2 before 3eb4911364c764572e9db4ab900a57689a54e8ce; affected 4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2 before 0180cf0373f84fff61b16f8c062553a13dd7cfca; affected 4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2 before c0a9a948159153be145f9471435695373904ee6d; affected 4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2 before ec18520f5edc20a00c34a8c9fdd6507c355e880f; affected 4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2 before d61cc1a435e6894bfb0dd3370c6f765d2d12825d; affected 4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2 before fd9d2d6124c293e40797a080adf8a9c237efd8b8; affected 4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2 before 21234efe2a8474a6d2d01ea9573319de7858ce44; affected 4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2 before 70b0d6b0a199c5a3ee6c72f5e61681ed6f759612 |
| Linux / Linux | affected 4.12; unaffected 0 before 4.12; unaffected 5.4.291 through 5.4.*; unaffected 5.10.235 through 5.10.*; unaffected 5.15.179 through 5.15.*; unaffected 6.1.130 through 6.1.*; unaffected 6.6.80 through 6.6.*; unaffected 6.12.17 through 6.12.*; unaffected 6.13.5 through 6.13.*; unaffected 6.14 through * |
CWE
No CWE identifiers supplied.
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
ADP enrichment
No English description supplied.