CVE-2026-92491
Published Sep 17, 2026
Description
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.
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References
Other References
https://git.kernel.org/stable/c/2224b622260ba590ab56ea1585d6bf7610be25b2
https://git.kernel.org/stable/c/3fa8cabd2d8ed80dd0b818ca7fd410b591392ff6
https://git.kernel.org/stable/c/456856a34906475fcf4b23879237103770dc7ef2
https://git.kernel.org/stable/c/826413b858ea2969e4c3e8197d0065efc47c6343
https://git.kernel.org/stable/c/ee556d118b11c6f5b60a32c1e84f366b336ac7d7
Frequently Asked Questions
What is CVE-2026-92491? +
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.
How do I check if I'm vulnerable to CVE-2026-92491? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.