CVE-2026-64148

Description

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: 1. 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. 2. 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.

References

• https://git.kernel.org/stable/c/0e46b6635b03d29807f810c3b415c4755a3f958d
• https://git.kernel.org/stable/c/10ae3180095bbe2d378c5b1d6f2f2fd74dda3cc2
• https://git.kernel.org/stable/c/3231aff8ab26111c54e630b1a200fc43a729dd14
• https://git.kernel.org/stable/c/560d559324169fe0583d54c475b5329550a86f71
• https://git.kernel.org/stable/c/784dd2bdc622ed3cc6ef8e113aa1852e252de36f