CVE-2022-50562: tpm: acpi: Call acpi_put_table() to fix memory leak

Deferred
AliasesUBUNTU-CVE-2022-50562DEBIAN-CVE-2022-50562
Published 22-10-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-50562 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 11.7% of scored vulnerabilities.

Priority
Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.21%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 4
RHSA-2023:6583RHSA-2023:7077SUSE-SU-2025:4111-1SUSE-SU-2025:4139-1SUSE-SU-2025:4149-1SUSE-SU-2025:4320-1

Timeline

  1. 22-10-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

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().

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.21% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: not stated in public data.

Ubuntu115 products
  • linuxAll versions (No fix recorded) | < 5.15.0-69.76
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1033.37
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.4-1
Linux1 product
  • linux≥ 0bfb23746052168620c5b52f49d8a47c3bb022fa, < 8ddc48068ac85740d3d5f9f3b0b323e733a35b33 | ≥ 0bfb23746052168620c5b52f49d8a47c3bb022fa, < 638cd298dfebce46919cbd6cf1884701215f506d | ≥ 0bfb23746052168620c5b52f49d8a47c3bb022fa, < 694a3d66f493afd77c704c6de91d9be4d6e004e4 | ≥ 0bfb23746052168620c5b52f49d8a47c3bb022fa, < bf31e3f8077af539feaf4e9bbf82e8eb51e7e5a8 | ≥ 0bfb23746052168620c5b52f49d8a47c3bb022fa, < 8740a12ca2e2959531ad253bac99ada338b33d80 | 4.18

3 vendors · 117 products

References

9 links