In the Linux kernel, the following vulnerability has been resolved: leds: trigger: Unregister sysfs attributes before calling deactivate() Triggers which have trigger specific sysfs attributes typically store related data in trigger-data allocated by the activate() callback and freed by the deactivate() callback. Calling device_remove_groups() after calling deactivate() leaves a window where the sysfs attributes show/store functions could be called after deactivation and then operate on the just freed trigger-data. Move the device_remove_groups() call to before deactivate() to close this race window. This also makes the deactivation path properly do things in reverse order of the activation path which calls the activate() callback before calling device_add_groups().

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

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 partial

Affected Vendors & Products

Vendors Products
Redhat
  • Enterprise Linux

No data.

Package CPE Advisory Released Date
Red Hat Enterprise Linux 8
kernel-0:4.18.0-553.22.1.el8_10 cpe:/o:redhat:enterprise_linux:8 RHSA-2024:7000 2024-09-24T00:00:00Z
Red Hat Enterprise Linux 9
kernel-0:5.14.0-503.11.1.el9_5 cpe:/a:redhat:enterprise_linux:9 RHSA-2024:9315 2024-11-12T00:00:00Z
kernel-0:5.14.0-503.11.1.el9_5 cpe:/o:redhat:enterprise_linux:9 RHSA-2024:9315 2024-11-12T00:00:00Z
References
Link Providers
https://git.kernel.org/stable/c/0788a6f3523d3686a9eed5ea1e6fcce6841277b2 cve-icon cve-icon
https://git.kernel.org/stable/c/09c1583f0e10c918855d6e7540a79461a353e5d6 cve-icon cve-icon
https://git.kernel.org/stable/c/3fb6a9d67cfd812a547ac73ec02e1077c26c640d cve-icon cve-icon
https://git.kernel.org/stable/c/734ba6437e80dfc780e9ee9d95f912392d12b5ea cve-icon cve-icon
https://git.kernel.org/stable/c/c0dc9adf9474ecb7106e60e5472577375aedaed3 cve-icon cve-icon
https://git.kernel.org/stable/c/c3b7a650c8717aa89df318364609c86cbc040156 cve-icon cve-icon
https://git.kernel.org/stable/c/cb8aa9d2a4c8a15d6a43ccf901ef3d094aa60374 cve-icon cve-icon
https://git.kernel.org/stable/c/d1415125b701ef13370e2761f691ec632a5eb93a cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2024081727-CVE-2024-43830-3b85@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2024-43830 cve-icon
https://www.cve.org/CVERecord?id=CVE-2024-43830 cve-icon
History

Wed, 13 Nov 2024 02:30:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:enterprise_linux:9
cpe:/o:redhat:enterprise_linux:9

Tue, 24 Sep 2024 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/o:redhat:enterprise_linux:8
Vendors & Products Redhat
Redhat enterprise Linux

Tue, 17 Sep 2024 06:30:00 +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': 6.6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H'}

Wed, 11 Sep 2024 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Mon, 19 Aug 2024 19:15:00 +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

Mon, 19 Aug 2024 04:45:00 +0000

Type Values Removed Values Added
References

Sat, 17 Aug 2024 09:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: leds: trigger: Unregister sysfs attributes before calling deactivate() Triggers which have trigger specific sysfs attributes typically store related data in trigger-data allocated by the activate() callback and freed by the deactivate() callback. Calling device_remove_groups() after calling deactivate() leaves a window where the sysfs attributes show/store functions could be called after deactivation and then operate on the just freed trigger-data. Move the device_remove_groups() call to before deactivate() to close this race window. This also makes the deactivation path properly do things in reverse order of the activation path which calls the activate() callback before calling device_add_groups().
Title leds: trigger: Unregister sysfs attributes before calling deactivate()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-08-17T09:21:48.946Z

Updated: 2024-11-05T09:40:41.670Z

Reserved: 2024-08-17T09:11:59.273Z

Link: CVE-2024-43830

cve-icon Vulnrichment

Updated: 2024-09-11T12:42:23.154Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-08-17T10:15:08.857

Modified: 2024-08-19T12:59:59.177

Link: CVE-2024-43830

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-08-17T00:00:00Z

Links: CVE-2024-43830 - Bugzilla