CVE-2024-56567: ad7780: fix division by zero in ad7780_write_raw()
First published: Fri Dec 27 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: ad7780: fix division by zero in ad7780_write_raw() In the ad7780_write_raw() , val2 can be zero, which might lead to a division by zero error in DIV_ROUND_CLOSEST(). The ad7780_write_raw() is based on iio_info's write_raw. While val is explicitly declared that can be zero (in read mode), val2 is not specified to be non-zero.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=5.2<5.4.287 | |
| Linux Kernel | >=5.5<5.10.231 | |
| Linux Kernel | >=5.11<5.15.174 | |
| Linux Kernel | >=5.16<6.1.120 | |
| Linux Kernel | >=6.2<6.6.64 | |
| Linux Kernel | >=6.7<6.12.4 | |
| debian/linux | <=5.10.223-1 | 5.10.234-1 6.1.129-1 6.1.133-1 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/18fb33df1de83a014d7f784089f9b124facc157f
- https://git.kernel.org/stable/c/afc1e3c00b3f5f0b4f1bc3e974fb9803cb938a90
- https://git.kernel.org/stable/c/68e79b848196a0b0ec006009cc69da1f835d1ae8
- https://git.kernel.org/stable/c/022e13518ba6cc1b4fdd291f49e4f57b2d5718e0
- https://git.kernel.org/stable/c/7e3a8ea3d1ada7f707de5d9d504774b4191eab66
- https://git.kernel.org/stable/c/f25a9f1df1f6738acf1fa05595fb6060a2c08ff1
- https://git.kernel.org/stable/c/c174b53e95adf2eece2afc56cd9798374919f99a
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-56567
- https://nvd.nist.gov/vuln/detail/CVE-2024-56567
- https://launchpad.net/bugs/cve/CVE-2024-56567
- https://security-tracker.debian.org/tracker/CVE-2024-56567
- https://ubuntu.com/security/CVE-2024-56567
- https://git.kernel.org/linus/c174b53e95adf2eece2afc56cd9798374919f99a
Frequently Asked Questions
What is the severity of CVE-2024-56567?
CVE-2024-56567 is classified as a medium severity vulnerability due to the potential for a division by zero error in the Linux kernel.
How do I fix CVE-2024-56567?
To remediate CVE-2024-56567, update to a patched version of the Linux kernel, specifically 5.10.234-1, 6.1.128-1, or later.
Which Linux kernel versions are affected by CVE-2024-56567?
CVE-2024-56567 affects Linux kernel versions from 5.2 to 6.6, excluding the patched versions.
What components are impacted by CVE-2024-56567?
CVE-2024-56567 specifically impacts the ad7780 driver within the Linux kernel.
Is CVE-2024-56567 a remote or local vulnerability?
CVE-2024-56567 is primarily a local vulnerability, as it requires local access to exploit the division by zero error.
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