CVE-2022-50562

Linux Kernel - Memory Leak in TPM ACPI Table Handling

Title source: llm
STIX 2.1

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().

Scores

EPSS 0.0020
EPSS Percentile 10.0%

Details

Status published
Products (16)
linux/Kernel 4.18.0 - 5.10.163linux
linux/Kernel 5.11.0 - 5.15.87linux
linux/Kernel 5.16.0 - 6.0.17linux
linux/Kernel 6.1.0 - 6.1.3linux
Linux/Linux < 4.18
Linux/Linux 0bfb23746052168620c5b52f49d8a47c3bb022fa - 638cd298dfebce46919cbd6cf1884701215f506d
Linux/Linux 0bfb23746052168620c5b52f49d8a47c3bb022fa - 694a3d66f493afd77c704c6de91d9be4d6e004e4
Linux/Linux 0bfb23746052168620c5b52f49d8a47c3bb022fa - 8740a12ca2e2959531ad253bac99ada338b33d80
Linux/Linux 0bfb23746052168620c5b52f49d8a47c3bb022fa - 8ddc48068ac85740d3d5f9f3b0b323e733a35b33
Linux/Linux 0bfb23746052168620c5b52f49d8a47c3bb022fa - bf31e3f8077af539feaf4e9bbf82e8eb51e7e5a8
... and 6 more
Published Oct 22, 2025
Tracked Since Feb 18, 2026