CVE-2022-49053

Feb. 27, 2025, 6:15 p.m.

7.8
High

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: target: tcmu: Fix possible page UAF tcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not take refcount properly and just returns page pointer. When tcmu_try_get_data_page() returns, the returned page may have been freed by tcmu_blocks_release(). We need to get_page() under cmdr_lock to avoid concurrent tcmu_blocks_release().

Product(s) Impacted

Product Versions
Linux Kernel
  • []

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-416
Use After Free
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.

References

https://git.kernel.org/stable/c/a6968f7a367f128d120447360734344d5a3d5336
https://git.kernel.org/stable/c/a9564d84ed9f6ee71017d062d0d2182154294a4b
https://git.kernel.org/stable/c/aec36b98a1bbaa84bfd8299a306e4c12314af626
https://git.kernel.org/stable/c/b7f3b5d70c834f49f7d87a2f2ed1c6284d9a0322
https://git.kernel.org/stable/c/d7c5d79e50be6e06b669141e3db1f977a0dd4e8e
https://git.kernel.org/stable/c/e3e0e067d5b34e4a68e3cc55f8eebc413f56f8ed
https://git.kernel.org/stable/c/fb7a5115422fbd6a4d505e8844f1ef5529f10489

Tags

416baaa9-dc9f-4396-8d5f-8c081fb06d67
CWE-416
2025-02-26
CVE-2022-49053

CVSS Score

7.8 / 10

CVSS Data - 3.1

  • Attack Vector: LOCAL
  • Attack Complexity: LOW
  • Privileges Required: LOW
  • Scope: UNCHANGED
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: HIGH

    • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

    View Vector String

Timeline

Published: Feb. 26, 2025, 7 a.m.
Last Modified: Feb. 27, 2025, 6:15 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

416baaa9-dc9f-4396-8d5f-8c081fb06d67

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.