CVE-2024-56531
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-56531
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-56531.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-56531
- Downstream
- Related
- Published
- 2024-12-27T14:11:14.161Z
- Modified
- 2025-11-28T02:34:20.367697Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- ALSA: caiaq: Use snd_card_free_when_closed() at disconnection
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ALSA: caiaq: Use sndcardfreewhenclosed() at disconnection
The USB disconnect callback is supposed to be short and not too-long waiting. OTOH, the current code uses sndcardfree() at disconnection, but this waits for the close of all used fds, hence it can take long. It eventually blocks the upper layer USB ioctls, which may trigger a soft lockup.
An easy workaround is to replace sndcardfree() with sndcardfreewhenclosed(). This variant returns immediately while the release of resources is done asynchronously by the card device release at the last close.
This patch also splits the code to the disconnect and the free phases; the former is called immediately at the USB disconnect callback while the latter is called from the card destructor.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56531.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/237f3faf0177bdde728fa3106d730d806436aa4d
- https://git.kernel.org/stable/c/3993edf44d3df7b6e8c753eac6ac8783473fcbab
- https://git.kernel.org/stable/c/4507a8b9b30344c5ddd8219945f446d47e966a6d
- https://git.kernel.org/stable/c/4dd821dcbfcecf7af6a08370b0b217cde2818acf
- https://git.kernel.org/stable/c/a3f9314752dbb6f6aa1f0f2b4c58243bda800738
- https://git.kernel.org/stable/c/b04dcbb7f7b1908806b7dc22671cdbe78ff2b82c
- https://git.kernel.org/stable/c/cadf1d8e9ddcd74584ec961aeac14ac549b261d8
- https://git.kernel.org/stable/c/dd0de8cb708951cebf727aa045e8242ba651bb52
- https://git.kernel.org/stable/c/ebad462eec93b0f701dfe4de98990e7355283801
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56531.json
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
- https://nvd.nist.gov/vuln/detail/CVE-2024-56531
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced523f1dce37434a9a6623bf46e7893e2b4b10ac3cFixed3993edf44d3df7b6e8c753eac6ac8783473fcbabFixedebad462eec93b0f701dfe4de98990e7355283801Fixed4dd821dcbfcecf7af6a08370b0b217cde2818acfFixedcadf1d8e9ddcd74584ec961aeac14ac549b261d8Fixed237f3faf0177bdde728fa3106d730d806436aa4dFixed4507a8b9b30344c5ddd8219945f446d47e966a6dFixeddd0de8cb708951cebf727aa045e8242ba651bb52Fixeda3f9314752dbb6f6aa1f0f2b4c58243bda800738Fixedb04dcbb7f7b1908806b7dc22671cdbe78ff2b82c
Linux / Kernel
Package
- Name
- Kernel
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced2.6.22Fixed4.19.325
- Type
- ECOSYSTEM
- Events
-
Introduced4.20.0Fixed5.4.287
- Type
- ECOSYSTEM
- Events
-
Introduced5.5.0Fixed5.10.231
- Type
- ECOSYSTEM
- Events
-
Introduced5.11.0Fixed5.15.174
- Type
- ECOSYSTEM
- Events
-
Introduced5.16.0Fixed6.1.120
- Type
- ECOSYSTEM
- Events
-
Introduced6.2.0Fixed6.6.64
- Type
- ECOSYSTEM
- Events
-
Introduced6.7.0Fixed6.11.11
- Type
- ECOSYSTEM
- Events
-
Introduced6.12.0Fixed6.12.2