CVE-2024-46691
- Source
- https://cve.org/CVERecord?id=CVE-2024-46691
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-46691.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-46691
- Downstream
BELL (1)
DEBIAN (1)
OESA (1)
SUSE (6)
- Related
- Published
- 2024-09-13T05:29:20Z
- Modified
- 2026-10-20T10:30:27Z
- Summary
- usb: typec: ucsi: Move unregister out of atomic section
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
usb: typec: ucsi: Move unregister out of atomic section
Commit '9329933699b3 ("soc: qcom: pmic_glink: Make client-lock non-sleeping")' moved the pmic_glink client list under a spinlock, as it is accessed by the rpmsg/glink callback, which in turn is invoked from IRQ context.
This means that ucsi_unregister() is now called from atomic context, which isn't feasible as it's expecting a sleepable context. An effort is under way to get GLINK to invoke its callbacks in a sleepable context, but until then lets schedule the unregistration.
A side effect of this is that ucsi_unregister() can now happen after the remote processor, and thereby the communication link with it, is gone. pmic_glink_send() is amended with a check to avoid the resulting NULL pointer dereference. This does however result in the user being informed about this error by the following entry in the kernel log:
ucsi_glink.pmic_glink_ucsi pmic_glink.ucsi.0: failed to send UCSI write request: -5
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46691.json" }- References
-
- https://git.kernel.org/stable/c/095b0001aefddcd9361097c971b7debc84e72714
- https://git.kernel.org/stable/c/11bb2ffb679399f99041540cf662409905179e3a
- https://git.kernel.org/stable/c/1e3769aa0946c2b6e509c06d7a0aa9b955eaef9e
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46691.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-46691
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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
-
Introducedfbadcde1572f6b00e1e343d8b24ec8bf7f3ec08dFixed1e3769aa0946c2b6e509c06d7a0aa9b955eaef9e
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced9329933699b32d467a99befa20415c4b2172389aFixed095b0001aefddcd9361097c971b7debc84e72714Fixed11bb2ffb679399f99041540cf662409905179e3a
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.6.33Fixed6.6.130
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.8.12Fixed6.9
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.9.3Fixed6.10
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8d62ab7d89a4906385ea8c11a4b2475578bec0f0
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbd54d7c8e76d235b4a70be3a545eb13f5ac531e4