CVE-2026-64168

Summary

In the Linux kernel, the following vulnerability has been resolved:

spi: sprd: fix error pointer deref after DMA setup failure

The driver falls back to PIO mode if DMA setup fails during probe.

Make sure to check the dma.enabled flag before trying to release the DMA channels also on late probe errors to avoid dereferencing an error pointer (or attempting to release a channel a second time).

This issue was flagged by Sashiko when reviewing a devres allocation conversion patch.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux386119bc7be9fa5114ced0274a22a943df890b4b < be74e276111f3c23b8e040c8c5e308f67a573addaffected
LinuxLinux386119bc7be9fa5114ced0274a22a943df890b4b < a8f233fb0c7be29b97cd249f64120bf35ce72805affected
LinuxLinux386119bc7be9fa5114ced0274a22a943df890b4b < 0cdea166c1a07c200caf9d0b722224fca43b23aeaffected
LinuxLinux386119bc7be9fa5114ced0274a22a943df890b4b < 450c319dd04d0eeff4184889768f7ada826a2e35affected
LinuxLinux386119bc7be9fa5114ced0274a22a943df890b4b < b6f1acf4e57ccf708cdc0cb70f5bb5b65162963baffected
LinuxLinux386119bc7be9fa5114ced0274a22a943df890b4b < be409d2bbe9ca7da7b05cc7dde7499bc481f0766affected
LinuxLinux386119bc7be9fa5114ced0274a22a943df890b4b < c33b4496e95d04722055446c0a31213639438536affected
LinuxLinux386119bc7be9fa5114ced0274a22a943df890b4b < 3d67fffb74267772d461c02c67f1eff893ad547daffected
LinuxLinux5.1affected
LinuxLinux0 < 5.1unaffected
LinuxLinux5.10.258 <= 5.10.*unaffected
LinuxLinux5.15.209 <= 5.15.*unaffected
LinuxLinux6.1.175 <= 6.1.*unaffected
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