CVE-2022-50562

tpm: acpi: Call acpi_put_table() to fix memory leak

N/A
Published: October 22, 2025 at 01:23 PM UTC
Updated: June 17, 2026 at 05:23 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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().

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.18 ≤ v < 5.10.1634.18 ≤ v < 5.15.874.18 ≤ v < 6.0.174.18 ≤ v < 6.1.34.18 ≤ v < 6.20bfb23746052168620c5b52f49d8a47c3bb022fa4.18
Vendor states this is fixed in 638cd298dfebce46919cbd6cf1884701215f506d (fixed)
Vendor states this is fixed in 694a3d66f493afd77c704c6de91d9be4d6e004e4 (fixed)
Vendor states this is fixed in 8740a12ca2e2959531ad253bac99ada338b33d80 (fixed)
Vendor states this is fixed in 8ddc48068ac85740d3d5f9f3b0b323e733a35b33 (fixed)
Vendor states this is fixed in bf31e3f8077af539feaf4e9bbf82e8eb51e7e5a8 (fixed)
Vendor states this is fixed in 4.18 (unaffected)
Vendor states this is fixed in 5.10.163 (unaffected)
Vendor states this is fixed in 5.15.87 (unaffected)
Vendor states this is fixed in 6.0.17 (unaffected)
Vendor states this is fixed in 6.1.3 (unaffected)
Vendor states this is fixed in 6.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusDEFERRED

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