CVE-2026-64148

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux45d76f492938cdc27ddadc16e1e75103f4cfbf56 < 3231aff8ab26111c54e630b1a200fc43a729dd14affected
LinuxLinux45d76f492938cdc27ddadc16e1e75103f4cfbf56 < 10ae3180095bbe2d378c5b1d6f2f2fd74dda3cc2affected
LinuxLinux45d76f492938cdc27ddadc16e1e75103f4cfbf56 < 784dd2bdc622ed3cc6ef8e113aa1852e252de36faffected
LinuxLinux45d76f492938cdc27ddadc16e1e75103f4cfbf56 < 560d559324169fe0583d54c475b5329550a86f71affected
LinuxLinux45d76f492938cdc27ddadc16e1e75103f4cfbf56 < 0e46b6635b03d29807f810c3b415c4755a3f958daffected
LinuxLinux6.4affected
LinuxLinux0 < 6.4unaffected
LinuxLinux6.6.142 <= 6.6.*unaffected
LinuxLinux6.12.92 <= 6.12.*unaffected
LinuxLinux6.18.34 <= 6.18.*unaffected
LinuxLinux7.0.11 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References