CVE-2022-50562
Published Oct 22, 2025
Modified Apr 15, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: tpm: acpi: Call acpi_put_table() to fix memory leak The start and length of the event log area are obtained from TPM2 or TCPA table, so we call acpi_get_table() to get the ACPI information, but the acpi_get_table() should be coupled with acpi_put_table() to release the ACPI memory, add the acpi_put_table() properly to fix the memory leak. While we are at it, remove the redundant empty line at the end of the tpm_read_log_acpi().
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References
Other References
https://git.kernel.org/stable/c/638cd298dfebce46919cbd6cf1884701215f506d
https://git.kernel.org/stable/c/694a3d66f493afd77c704c6de91d9be4d6e004e4
https://git.kernel.org/stable/c/8740a12ca2e2959531ad253bac99ada338b33d80
https://git.kernel.org/stable/c/8ddc48068ac85740d3d5f9f3b0b323e733a35b33
https://git.kernel.org/stable/c/bf31e3f8077af539feaf4e9bbf82e8eb51e7e5a8
Frequently Asked Questions
What is CVE-2022-50562? +
In the Linux kernel, the following vulnerability has been resolved:
tpm: acpi: Call acpi_put_table() to fix memory leak
The start and length of the event log area are obtained from
TPM2 or TCPA table, so we call acpi_get_table() to get the
ACPI information, but the acpi_get_table() should be coupled with
acpi_put_table() to release the ACPI memory, add the acpi_put_table()
properly to fix the memory leak.
While we are at it, remove the redundant empty line at the
end of the tpm_read_log_acpi().
How do I check if I'm vulnerable to CVE-2022-50562? +
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.