CVE-2024-56651: can: hi311x: hi3110_can_ist(): fix potential use-after-free
First published: Fri Dec 27 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: can: hi311x: hi3110_can_ist(): fix potential use-after-free The commit a22bd630cfff ("can: hi311x: do not report txerr and rxerr during bus-off") removed the reporting of rxerr and txerr even in case of correct operation (i. e. not bus-off). The error count information added to the CAN frame after netif_rx() is a potential use after free, since there is no guarantee that the skb is in the same state. It might be freed or reused. Fix the issue by postponing the netif_rx() call in case of txerr and rxerr reporting.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=4.14.291<4.15 | |
| Linux Kernel | >=4.19.256<4.20 | |
| Linux Kernel | >=5.4.211<5.5 | |
| Linux Kernel | >=5.10.137<5.11 | |
| Linux Kernel | >=5.15.61<5.16 | |
| Linux Kernel | >=5.18.18<5.19 | |
| Linux Kernel | >=5.19.2<5.20 | |
| Linux Kernel | >=6.0<6.1.120 | |
| Linux Kernel | >=6.2<6.6.66 | |
| Linux Kernel | >=6.7<6.12.5 | |
| Linux Kernel | =6.13-rc1 | |
| debian/linux | <=5.10.223-1<=5.10.234-1 | 6.1.129-1 6.1.133-1 6.12.21-1 6.12.22-1 |
| debian/linux-6.1 | 6.1.129-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/4ad77eb8f2e07bcfa0e28887d3c7dbb732d92cc1
- https://git.kernel.org/stable/c/1128022009444faf49359bd406cd665b177cb643
- https://git.kernel.org/stable/c/bc30b2fe8c54694f8ae08a5b8a5d174d16d93075
- https://git.kernel.org/stable/c/9ad86d377ef4a19c75a9c639964879a5b25a433b
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-56651
- https://nvd.nist.gov/vuln/detail/CVE-2024-56651
- https://launchpad.net/bugs/cve/CVE-2024-56651
- https://security-tracker.debian.org/tracker/CVE-2024-56651
- https://ubuntu.com/security/CVE-2024-56651
- https://git.kernel.org/linus/9ad86d377ef4a19c75a9c639964879a5b25a433b
Frequently Asked Questions
What is the severity of CVE-2024-56651?
CVE-2024-56651 is a critical vulnerability due to a potential use-after-free in the Linux kernel.
How do I fix CVE-2024-56651?
To fix CVE-2024-56651, update your Linux kernel to a version that addresses this vulnerability.
What versions of the Linux kernel are affected by CVE-2024-56651?
CVE-2024-56651 affects multiple versions of the Linux kernel, specifically from version 4.14.291 to 6.13-rc1.
Can CVE-2024-56651 lead to system stability issues?
Yes, CVE-2024-56651 can lead to system instability and exploitation due to the use-after-free vulnerability.
Is there a workaround for CVE-2024-56651?
There are no confirmed workarounds for CVE-2024-56651 other than applying the available patches.
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