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().

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*

No data.

References
Link Providers
https://git.kernel.org/stable/c/a6968f7a367f128d120447360734344d5a3d5336 cve-icon cve-icon
https://git.kernel.org/stable/c/a9564d84ed9f6ee71017d062d0d2182154294a4b cve-icon cve-icon
https://git.kernel.org/stable/c/aec36b98a1bbaa84bfd8299a306e4c12314af626 cve-icon cve-icon
https://git.kernel.org/stable/c/b7f3b5d70c834f49f7d87a2f2ed1c6284d9a0322 cve-icon cve-icon
https://git.kernel.org/stable/c/d7c5d79e50be6e06b669141e3db1f977a0dd4e8e cve-icon cve-icon
https://git.kernel.org/stable/c/e3e0e067d5b34e4a68e3cc55f8eebc413f56f8ed cve-icon cve-icon
https://git.kernel.org/stable/c/fb7a5115422fbd6a4d505e8844f1ef5529f10489 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025022652-CVE-2022-49053-a1fe@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-49053 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-49053 cve-icon
History

Mon, 24 Mar 2025 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel

Tue, 04 Mar 2025 03:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Thu, 27 Feb 2025 18:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

 cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Thu, 27 Feb 2025 01:45:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Wed, 26 Feb 2025 02:15:00 +0000

Type Values Removed Values Added
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().
Title scsi: target: tcmu: Fix possible page UAF
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-02-26T01:54:26.806Z

Updated: 2025-02-27T18:02:30.241Z

Reserved: 2025-02-26T01:49:39.242Z

Link: CVE-2022-49053

cve-icon Vulnrichment

Updated: 2025-02-27T17:59:27.457Z

cve-icon NVD

Status : Analyzed

Published: 2025-02-26T07:00:42.563

Modified: 2025-03-24T17:43:58.983

Link: CVE-2022-49053

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-02-26T00:00:00Z

Links: CVE-2022-49053 - Bugzilla