CVE-2024-46859: platform/x86: panasonic-laptop: Fix SINF array out of bounds accesses
First published: Fri Sep 27 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: platform/x86: panasonic-laptop: Fix SINF array out of bounds accesses The panasonic laptop code in various places uses the SINF array with index values of 0 - SINF_CUR_BRIGHT(0x0d) without checking that the SINF array is big enough. Not all panasonic laptops have this many SINF array entries, for example the Toughbook CF-18 model only has 10 SINF array entries. So it only supports the AC+DC brightness entries and mute. Check that the SINF array has a minimum size which covers all AC+DC brightness entries and refuse to load if the SINF array is smaller. For higher SINF indexes hide the sysfs attributes when the SINF array does not contain an entry for that attribute, avoiding show()/store() accessing the array out of bounds and add bounds checking to the probe() and resume() code accessing these.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=3.3<6.1.111 | |
| Linux Kernel | >=6.2<6.6.52 | |
| Linux Kernel | >=6.7<6.10.11 | |
| Linux Kernel | =6.11-rc1 | |
| Linux Kernel | =6.11-rc2 | |
| Linux Kernel | =6.11-rc3 | |
| Linux Kernel | =6.11-rc4 | |
| Linux Kernel | =6.11-rc5 | |
| Linux Kernel | =6.11-rc6 | |
| Linux Kernel | =6.11-rc7 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.13-1 |
| debian/linux-6.1 | 6.1.119-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/6821a82616f60aa72c5909b3e252ad97fb9f7e2a
- https://git.kernel.org/stable/c/9291fadbd2720a869b1d2fcf82305648e2e62a16
- https://git.kernel.org/stable/c/b38c19783286a71693c2194ed1b36665168c09c4
- https://git.kernel.org/stable/c/b7c2f692307fe704be87ea80d7328782b33c3cef
- https://git.kernel.org/stable/c/f52e98d16e9bd7dd2b3aef8e38db5cbc9899d6a4
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-46859
- https://nvd.nist.gov/vuln/detail/CVE-2024-46859
- https://launchpad.net/bugs/cve/CVE-2024-46859
- https://security-tracker.debian.org/tracker/CVE-2024-46859
- https://ubuntu.com/security/CVE-2024-46859
- https://git.kernel.org/linus/f52e98d16e9bd7dd2b3aef8e38db5cbc9899d6a4
Frequently Asked Questions
What is the severity of CVE-2024-46859?
CVE-2024-46859 is classified as a moderate severity vulnerability affecting the Linux kernel.
How do I fix CVE-2024-46859?
To fix CVE-2024-46859, update to the recommended versions of the Linux kernel as specified in the documentation.
Which versions of the Linux kernel are affected by CVE-2024-46859?
CVE-2024-46859 affects various versions of the Linux kernel between 3.3 and 6.11-rc7.
What is the nature of the vulnerability in CVE-2024-46859?
CVE-2024-46859 relates to out of bounds accesses in the SINF array used in the Panasonic laptop code within the Linux kernel.
Is there a specific version of the Linux kernel that resolves CVE-2024-46859?
Yes, updating to specific remedied versions like 6.1.123-1 or 6.12.11-1 will resolve CVE-2024-46859.
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