CVE-2026-92491 PUBLISHED

firmware: arm_scmi: Roll back partial protocol table registration

Assigner: Linux
Reserved: 16.09.2026 Published: 17.09.2026 Updated: 17.09.2026

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

firmware: arm_scmi: Roll back partial protocol table registration

scmi_protocol_table_register() can leave earlier requests registered when a later entry in the same ID table fails. Each request retains a pointer to the driver's ID table, so a failed module load can leave a dangling pointer after the module storage is released.

Unrequest only the successfully registered prefix, in reverse order, before returning the failure. Leave the failed entry and the remaining entries untouched because matching requests can be owned by another driver.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 41714150f3d148fbcd7a947869c85531b53c50d4 to ee556d118b11c6f5b60a32c1e84f366b336ac7d7 (excl.)
  • affected from 2858f6e5f06440d6b9e9c3f57bc68915344830a9 to 3fa8cabd2d8ed80dd0b818ca7fd410b591392ff6 (excl.)
  • affected from 2858f6e5f06440d6b9e9c3f57bc68915344830a9 to 456856a34906475fcf4b23879237103770dc7ef2 (excl.)
  • affected from 2858f6e5f06440d6b9e9c3f57bc68915344830a9 to 826413b858ea2969e4c3e8197d0065efc47c6343 (excl.)
  • affected from 2858f6e5f06440d6b9e9c3f57bc68915344830a9 to 2224b622260ba590ab56ea1585d6bf7610be25b2 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.9 is affected
  • unaffected from 0 to 6.9 (excl.)
  • unaffected from 6.12.110 to 6.12.* (incl.)
  • unaffected from 6.18.52 to 6.18.* (incl.)
  • unaffected from 7.2.6 to 7.2.* (incl.)
  • unaffected from 7.3-rc1 to * (incl.)

References