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VULNERABILITIES

CVE-2022-48637 Details

Description

In the Linux kernel, the following vulnerability has been resolved: bnxt: prevent skb UAF after handing over to PTP worker When reading the timestamp is required bnxt_tx_int() hands over the ownership of the completed skb to the PTP worker. The skb should not be used afterwards, as the worker may run before the rest of our code and free the skb, leading to a use-after-free. Since dev_kfree_skb_any() accepts NULL make the loss of ownership more obvious and set skb to NULL.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA: kernel.orgCVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://git.kernel.org/stable/c/08483e4c0c83b221b8891434a04cec405dee94a6 kernel.orgPatch
https://git.kernel.org/stable/c/32afa1f23e42cc635ccf4c39f24514d03d1e8338 kernel.orgPatch
https://git.kernel.org/stable/c/c31f26c8f69f776759cbbdfb38e40ea91aa0dd65 kernel.orgPatch
https://git.kernel.org/stable/c/08483e4c0c83b221b8891434a04cec405dee94a6 CVEPatch
https://git.kernel.org/stable/c/32afa1f23e42cc635ccf4c39f24514d03d1e8338 CVEPatch

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-416Use After FreeCISA-ADP

Affected Products

ProductVersions
linux linux kernel
>= 5.14, < 5.15.71
>= 5.16, < 5.19.12
6.0 rc1
6.0 rc2
6.0 rc3

CPE

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0:rc5:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0:rc6:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

9 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2022-48637
NVD Published Date:
Apr 28, 2024
NVD Last Modified:
Aug 4, 2026
Source:
kernel.org
CVE-2022-48637 Details - Not Deferred