In the Linux kernel, the following vulnerability has been resolved:

lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc()

If we need to increase the tree depth, allocate a new node, and then
race with another thread that increased the tree depth before us, we'll
still have a preallocated node that might be used later.

If we then use that node for a new non-root node, it'll still have a
pointer to the old root instead of being zeroed - fix this by zeroing it
in the cmpxchg failure path.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00037.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel
Redhat
  • Enterprise Linux
  • Rhel Eus

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:6.11:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*
Package CPE Advisory Released Date
Red Hat Enterprise Linux 8
kernel-rt-0:4.18.0-553.27.1.rt7.368.el8_10 cpe:/a:redhat:enterprise_linux:8::nfv RHSA-2024:8870 2024-11-05T00:00:00Z
kernel-0:4.18.0-553.27.1.el8_10 cpe:/o:redhat:enterprise_linux:8 RHSA-2024:8856 2024-11-05T00:00:00Z
Red Hat Enterprise Linux 9
kernel-0:5.14.0-570.12.1.el9_6 cpe:/a:redhat:enterprise_linux:9 RHSA-2025:6966 2025-05-13T00:00:00Z
kernel-0:5.14.0-570.12.1.el9_6 cpe:/o:redhat:enterprise_linux:9 RHSA-2025:6966 2025-05-13T00:00:00Z
Red Hat Enterprise Linux 9.4 Extended Update Support
kernel-0:5.14.0-427.68.1.el9_4 cpe:/a:redhat:rhel_eus:9.4 RHSA-2025:7526 2025-05-14T00:00:00Z

No data.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/0f078f8ca93b28a34e20bd050f12cd4efeee7c0f cve-icon cve-icon
https://git.kernel.org/stable/c/0f27f4f445390cb7f73d4209cb2bf32834dc53da cve-icon cve-icon
https://git.kernel.org/stable/c/99418ec776a39609f50934720419e0b464ca2283 cve-icon cve-icon
https://git.kernel.org/stable/c/ad5ee9feebc2eb8cfc76ed74a2d6e55343b0e169 cve-icon cve-icon
https://git.kernel.org/stable/c/b2f11c6f3e1fc60742673b8675c95b78447f3dae cve-icon cve-icon
https://git.kernel.org/stable/c/d942e855324a60107025c116245095632476613e cve-icon cve-icon
https://git.kernel.org/stable/c/ebeff038744c498a036e7a92eb8e433ae0a386d7 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2024100906-CVE-2024-47668-6b53@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2024-47668 cve-icon
https://www.cve.org/CVERecord?id=CVE-2024-47668 cve-icon
History

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00027}

 epss

{'score': 0.00028}

Wed, 14 May 2025 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Eus
CPEs cpe:/a:redhat:rhel_eus:9.4
Vendors & Products Redhat rhel Eus

Wed, 14 May 2025 02:30:00 +0000

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

Wed, 06 Nov 2024 02:15:00 +0000

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

Wed, 23 Oct 2024 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Weaknesses CWE-362
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
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': 4.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'}

Fri, 11 Oct 2024 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

Thu, 10 Oct 2024 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Wed, 09 Oct 2024 14:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc() If we need to increase the tree depth, allocate a new node, and then race with another thread that increased the tree depth before us, we'll still have a preallocated node that might be used later. If we then use that node for a new non-root node, it'll still have a pointer to the old root instead of being zeroed - fix this by zeroing it in the cmpxchg failure path.
Title lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-05-04T09:36:49.171Z

Reserved: 2024-09-30T16:00:12.936Z

Link: CVE-2024-47668

cve-icon Vulnrichment

Updated: 2024-10-10T13:21:15.128Z

cve-icon NVD

Status : Analyzed

Published: 2024-10-09T15:15:15.513

Modified: 2024-10-23T15:30:00.057

Link: CVE-2024-47668

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-10-09T00:00:00Z

Links: CVE-2024-47668 - Bugzilla

cve-icon OpenCVE Enrichment

No data.