Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved:
pds_core: fix error handling in pdsc_devcmd_wait
Fix two cases where pdsc_devcmd_wait() returns stale success from the completion register instead of an error:
-
FW crash: If firmware stops running, the wait loop breaks early with running=false. The condition “if ((!done || timeout) && running)” is false, so error handling is bypassed and stale status is returned. Check !running first and return -ENXIO.
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Timeout: If a command times out, err is set to -ETIMEDOUT but then overwritten by pdsc_err_to_errno(status) which reads stale status. Return -ETIMEDOUT immediately after cleaning up.
Both errors now propagate to pdsc_devcmd_locked() which queues health_work for recovery.
Details
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| Ubuntu 24.04 | Planned | — |