ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size()

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Summary

CVECVE-2024-50205
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-11-08 06:15:16 UTC
Updated2026-05-12 13:16:19 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-369 | CWE-369 CWE-369 Divide By Zero

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1ADPDECLARED5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 826b5de90c0bca4e9de6231da9e1730480621588 d575414361630b8b0523912532fcd7c79e43468c git Not specified
CNA Linux Linux affected 826b5de90c0bca4e9de6231da9e1730480621588 5e431f85c87bbffd93a9830d5a576586f9855291 git Not specified
CNA Linux Linux affected 826b5de90c0bca4e9de6231da9e1730480621588 7d4eb9e22131ec154e638cbd56629195c9bcbe9a git Not specified
CNA Linux Linux affected 826b5de90c0bca4e9de6231da9e1730480621588 d2826873db70a6719cdd9212a6739f3e6234cfc4 git Not specified
CNA Linux Linux affected 826b5de90c0bca4e9de6231da9e1730480621588 4bdc21506f12b2d432b1f2667e5ff4c75eee58e3 git Not specified
CNA Linux Linux affected 826b5de90c0bca4e9de6231da9e1730480621588 3452d39c4704aa12504e4190298c721fb01083c3 git Not specified
CNA Linux Linux affected 826b5de90c0bca4e9de6231da9e1730480621588 72cafe63b35d06b5cfbaf807e90ae657907858da git Not specified
CNA Linux Linux affected 4.20 Not specified
CNA Linux Linux unaffected 4.20 semver Not specified
CNA Linux Linux unaffected 5.4.285 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.229 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.170 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.115 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.59 6.6.* semver Not specified
CNA Linux Linux unaffected 6.11.6 6.11.* semver Not specified
CNA Linux Linux unaffected 6.12 * original_commit_for_fix Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/d2826873db70a6719cdd9212a6739f3e6234cfc4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/03/msg00002.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
git.kernel.org/stable/c/d575414361630b8b0523912532fcd7c79e43468c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/72cafe63b35d06b5cfbaf807e90ae657907858da 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-265688.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/4bdc21506f12b2d432b1f2667e5ff4c75eee58e3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/5e431f85c87bbffd93a9830d5a576586f9855291 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/3452d39c4704aa12504e4190298c721fb01083c3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/01/msg00001.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
git.kernel.org/stable/c/7d4eb9e22131ec154e638cbd56629195c9bcbe9a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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