In the Linux kernel, the following vulnerability has been resolved: net: ethernet: fix potential use-after-free in ec_bhf_remove static void ec_bhf_remove(struct pci_dev *dev) { ... struct ec_bhf_priv *priv = netdev_priv(net_dev); unregister_netdev(net_dev); free_netdev(net_dev); pci_iounmap(dev, priv->dma_io); pci_iounmap(dev, priv->io); ... } priv is netdev private data, but it is used after free_netdev(). It can cause use-after-free when accessing priv pointer. So, fix it by moving free_netdev() after pci_iounmap() calls.

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 partial

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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc6:*:*:*:*:*:*

No data.

References
Link Providers
https://git.kernel.org/stable/c/0260916843cc74f3906acf8b6f256693e01530a2 cve-icon cve-icon
https://git.kernel.org/stable/c/19f88ca68ccf8771276a606765239b167654f84a cve-icon cve-icon
https://git.kernel.org/stable/c/1cafc540b7bf1b6a5a77dc000205fe337ef6eba6 cve-icon cve-icon
https://git.kernel.org/stable/c/95deeb29d831e2fae608439e243e7a520611e7ea cve-icon cve-icon
https://git.kernel.org/stable/c/9cca0c2d70149160407bda9a9446ce0c29b6e6c6 cve-icon cve-icon
https://git.kernel.org/stable/c/b1ad283755095a4b9d1431aeb357d7df1a33d3bb cve-icon cve-icon
https://git.kernel.org/stable/c/d11d79e52ba080ee567cb7d7eb42a5ade60a8130 cve-icon cve-icon
https://git.kernel.org/stable/c/db2bc3cfd2bc01621014d4f17cdfc74611f339c8 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2024052140-CVE-2021-47235-1fb6@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2021-47235 cve-icon
https://www.cve.org/CVERecord?id=CVE-2021-47235 cve-icon
History

Mon, 30 Dec 2024 19:30:00 +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:5.13:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc6:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
Metrics 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'}

 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'}

Mon, 04 Nov 2024 12:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-21T14:19:37.070Z

Updated: 2025-05-04T07:06:51.851Z

Reserved: 2024-04-10T18:59:19.531Z

Link: CVE-2021-47235

cve-icon Vulnrichment

Updated: 2024-08-04T05:32:07.501Z

cve-icon NVD

Status : Analyzed

Published: 2024-05-21T15:15:12.777

Modified: 2024-12-30T19:06:05.170

Link: CVE-2021-47235

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-05-21T00:00:00Z

Links: CVE-2021-47235 - Bugzilla