CVE-2024-50205: ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size()
First published: Fri Nov 08 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size() The step variable is initialized to zero. It is changed in the loop, but if it's not changed it will remain zero. Add a variable check before the division. The observed behavior was introduced by commit 826b5de90c0b ("ALSA: firewire-lib: fix insufficient PCM rule for period/buffer size"), and it is difficult to show that any of the interval parameters will satisfy the snd_interval_test() condition with data from the amdtp_rate_table[] table. Found by Linux Verification Center (linuxtesting.org) with SVACE.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=4.20<5.4.285 | |
| Linux Kernel | >=5.5<5.10.229 | |
| Linux Kernel | >=5.11<5.15.170 | |
| Linux Kernel | >=5.16<6.1.115 | |
| Linux Kernel | >=6.2<6.6.59 | |
| Linux Kernel | >=6.7<6.11.6 | |
| Linux Kernel | =6.12-rc1 | |
| Linux Kernel | =6.12-rc2 | |
| Linux Kernel | =6.12-rc3 | |
| Linux Kernel | =6.12-rc4 |
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Reference Links
- https://git.kernel.org/stable/c/d575414361630b8b0523912532fcd7c79e43468c
- https://git.kernel.org/stable/c/5e431f85c87bbffd93a9830d5a576586f9855291
- https://git.kernel.org/stable/c/7d4eb9e22131ec154e638cbd56629195c9bcbe9a
- https://git.kernel.org/stable/c/d2826873db70a6719cdd9212a6739f3e6234cfc4
- https://git.kernel.org/stable/c/4bdc21506f12b2d432b1f2667e5ff4c75eee58e3
- https://git.kernel.org/stable/c/3452d39c4704aa12504e4190298c721fb01083c3
- https://git.kernel.org/stable/c/72cafe63b35d06b5cfbaf807e90ae657907858da
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-50205
- https://nvd.nist.gov/vuln/detail/CVE-2024-50205
- https://launchpad.net/bugs/cve/CVE-2024-50205
- https://security-tracker.debian.org/tracker/CVE-2024-50205
- https://ubuntu.com/security/CVE-2024-50205
Frequently Asked Questions
What is the severity of CVE-2024-50205?
CVE-2024-50205 has been classified as a low severity vulnerability.
How do I fix CVE-2024-50205?
To fix CVE-2024-50205, update your Linux kernel to a version that includes the patch for this vulnerability.
What versions of the Linux kernel are affected by CVE-2024-50205?
CVE-2024-50205 affects several versions of the Linux kernel ranging from 4.20 to 6.12-rc4.
What is the cause of CVE-2024-50205?
CVE-2024-50205 is caused by a division by zero issue in the ALSA firewire-lib module within the Linux kernel.
Is CVE-2024-50205 being actively exploited?
As of now, there is no indication that CVE-2024-50205 is being actively exploited in the wild.
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