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CVE-2021-47232 Details
Description
In the Linux kernel, the following vulnerability has been resolved: can: j1939: fix Use-after-Free, hold skb ref while in use This patch fixes a Use-after-Free found by the syzbot. The problem is that a skb is taken from the per-session skb queue, without incrementing the ref count. This leads to a Use-after-Free if the skb is taken concurrently from the session queue due to a CTS.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 28, 2024Exploitation: NoneAutomatable: NoTechnical Impact: Total
References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.4, < 5.4.128 >= 5.5, < 5.10.46 >= 5.11, < 5.12.13 5.13 rc1 5.13 rc2 5.13 rc3 5.13 rc4 5.13 rc5 5.13 rc6 |
CPE
Remediation
| |
Change History
8 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 4, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Apr 4, 2025 | Initial Analysis | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| Jul 3, 2024 | CVE Modified | CISA-ADP |
| May 28, 2024 | CVE Modified | kernel.org |
| May 21, 2024 | New CVE Received | kernel.org |