What’s Vulnerable › Vulnerabilities

CVE-2022-50824: tpm: tpm_tis: Add the missed acpi_put_table() to fix memory leak

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-30 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: tpm: tpm_tis: Add the missed acpi_put_table() to fix memory leak In check_acpi_tpm2(), we get the TPM2 table just to make sure the table is there, not used after the init, so the acpi_put_table() should be added to release the ACPI memory.

Affected products

• Linux kernel: 4.13 — fixed in 6.2

How to fix

Upgrade to a fixed version: Linux kernel 6.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3b6c822238da9ee8984803355601bcc603d49cb5
• https://git.kernel.org/stable/c/43135fb098126ef2cd6ed584900fd7bfa25f95ce
• https://git.kernel.org/stable/c/8bc6c10d3f389693410adb14b4e9deec01ff6334
• https://git.kernel.org/stable/c/db9622f762104459ff87ecdf885cc42c18053fd9
• https://git.kernel.org/stable/c/de667a2704ae799f697fd45cf4317623d8c79fb7
• https://git.kernel.org/stable/c/e027f3b9fabd2b410a4e6a7651e7a45b87019f23
• https://git.kernel.org/stable/c/e0d1cf8ef84bb14a673215699fb8acc187aa2c4a
• https://git.kernel.org/stable/c/e60fa800a32a693d672b1a091424d780278c4587

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