CVE-2026-31777 PUBLISHED

ALSA: ctxfi: Check the error for index mapping

Assigner: Linux
Reserved: 09.03.2026 Published: 01.05.2026 Updated: 02.05.2026

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

ALSA: ctxfi: Check the error for index mapping

The ctxfi driver blindly assumed a proper value returned from daio_device_index(), but it's not always true. Add a proper error check to deal with the error from the function.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 8cc72361481f00253f1e468ade5795427386d593 to d4d3b8cbb70a2de247cbfe99bdb232aef9ed59bc (excl.)
  • affected from 8cc72361481f00253f1e468ade5795427386d593 to 277c6960d4ddb94d16198afd70c92c3d4593d131 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 2.6.31 is affected
  • unaffected from 0 to 2.6.31 (excl.)
  • unaffected from 6.19.12 to 6.19.* (incl.)
  • unaffected from 7.0 to * (incl.)

References