CVE-2024-47749: RDMA/cxgb4: Added NULL check for lookup_atid
First published: Mon Oct 21 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: RDMA/cxgb4: Added NULL check for lookup_atid The lookup_atid() function can return NULL if the ATID is invalid or does not exist in the identifier table, which could lead to dereferencing a null pointer without a check in the `act_establish()` and `act_open_rpl()` functions. Add a NULL check to prevent null pointer dereferencing. Found by Linux Verification Center (linuxtesting.org) with SVACE.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=2.6.35<5.10.227 | |
| Linux Kernel | >=5.11<5.15.168 | |
| Linux Kernel | >=5.16<6.1.113 | |
| Linux Kernel | >=6.2<6.6.54 | |
| Linux Kernel | >=6.7<6.10.13 | |
| Linux Kernel | >=6.11<6.11.2 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
| debian/linux-6.1 | 6.1.119-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/0d50ae281a1712b9b2ca72830a96b8f11882358d
- https://git.kernel.org/stable/c/39cb9f39913566ec5865581135f3e8123ad1aee1
- https://git.kernel.org/stable/c/4e1fe68d695af367506ea3c794c5969630f21697
- https://git.kernel.org/stable/c/54aaa3ed40972511e423b604324b881425b9ff1e
- https://git.kernel.org/stable/c/b11318dc8a1ec565300bb1a9073095af817cc508
- https://git.kernel.org/stable/c/b12e25d91c7f97958341538c7dc63ee49d01548f
- https://git.kernel.org/stable/c/b9c94c8ba5a713817cffd74c4bacc05187469624
- https://git.kernel.org/stable/c/dd598ac57dcae796cb58551074660c39b43fb155
- https://git.kernel.org/stable/c/e766e6a92410ca269161de059fff0843b8ddd65f
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-47749
- https://nvd.nist.gov/vuln/detail/CVE-2024-47749
- https://launchpad.net/bugs/cve/CVE-2024-47749
- https://security-tracker.debian.org/tracker/CVE-2024-47749
- https://ubuntu.com/security/CVE-2024-47749
- https://git.kernel.org/linus/e766e6a92410ca269161de059fff0843b8ddd65f
Frequently Asked Questions
What is the severity of CVE-2024-47749?
The severity of CVE-2024-47749 is high due to the potential for null pointer dereference in the Linux kernel.
How do I fix CVE-2024-47749?
To fix CVE-2024-47749, update your Linux kernel to a version that includes the relevant security patches, such as versions 6.1.123-1 or later.
Which Linux kernel versions are affected by CVE-2024-47749?
CVE-2024-47749 affects Linux kernel versions between 2.6.35 and 6.11.2.
What is the nature of the vulnerability in CVE-2024-47749?
CVE-2024-47749 is a null pointer dereference vulnerability that occurs in the lookup_atid() function of the RDMA/cxgb4 component in the Linux kernel.
Is CVE-2024-47749 specific to any Linux distribution?
CVE-2024-47749 is relevant across multiple Linux distributions, including Debian, which provides specific package updates to address the vulnerability.
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