CVE-2024-50205: Linux kernel · ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size()
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium · fixed in 5.4.0-1142.152~18.04.1 : update Linux kernel when convenient.
Data as of 29 Oct 2026, 22:34 UTC
- Patch
- Available – fixed in 5.4.0-1142.152~18.04.1, 5.4.0-1145.152~18.04.1, 5.4.0-1143.152~18.04.1 +84
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 8 Nov 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Patches and advisories
- ubuntu.com/security/notices/USN-7276-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7277-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7288-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7289-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7291-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7288-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7289-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7293-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7294-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7295-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7289-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7305-1 (opens in a new tab)
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azure-6.11pkg:deb/ubuntu/linux-azure-6.11?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azure-nvidiapkg:deb/ubuntu/linux-azure-nvidia?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
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.
References
- ubuntu.com/security/CVE-2024-50205 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2024-50205 (opens in a new tab)
- git.kernel.org/linus/72cafe63b35d06b5cfbaf807e90ae657907858da (opens in a new tab)
- git.kernel.org/stable/c/7d4eb9e22131ec154e638cbd56629195c9bcbe9a (opens in a new tab)
- git.kernel.org/stable/c/d2826873db70a6719cdd9212a6739f3e6234cfc4 (opens in a new tab)
- git.kernel.org/stable/c/4bdc21506f12b2d432b1f2667e5ff4c75eee58e3 (opens in a new tab)
- git.kernel.org/stable/c/3452d39c4704aa12504e4190298c721fb01083c3 (opens in a new tab)
- git.kernel.org/stable/c/72cafe63b35d06b5cfbaf807e90ae657907858da (opens in a new tab)
- git.kernel.org/stable/c/d575414361630b8b0523912532fcd7c79e43468c (opens in a new tab)
- git.kernel.org/stable/c/5e431f85c87bbffd93a9830d5a576586f9855291 (opens in a new tab)
- ubuntu.com/security/notices/USN-7276-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7277-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7288-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7289-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7291-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7288-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7289-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7293-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7294-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7295-1 (opens in a new tab)