In the Linux kernel, the following vulnerability has been resolved: ALSA: core: Fix NULL module pointer assignment at card init The commit 81033c6b584b (ALSA: core: Warn on empty module) introduced a WARN_ON() for a NULL module pointer passed at snd_card object creation, and it also wraps the code around it with \'#ifdef MODULE\'. This works in most cases, but the devils are always in details. MODULE is defined when the target code (i.e. the sound core) is built as a module; but this doesn\'t mean that the caller is also built-in or not. Namely, when only the sound core is built-in (CONFIG_SND=y) while the driver is a module (CONFIG_SND_USB_AUDIO=m), the passed module pointer is ignored even if it\'s non-NULL, and card->module remains as NULL. This would result in the missing module reference up/down at the device open/close, leading to a race with the code execution after the module removal. For addressing the bug, move the assignment of card->module again out of ifdef. The WARN_ON() is still wrapped with ifdef because the module can be really NULL when all sound drivers are built-in. Note that we keep \'ifdef MODULE\' for WARN_ON(), otherwise it would lead to a false-positive NULL module check. Admittedly it won\'t catch perfectly, i.e. no check is performed when CONFIG_SND=y. But, it\'s no real problem as it\'s only for debugging, and the condition is pretty rare.
Find out more about CVE-2024-38605 from the MITRE-CVE dictionary and NIST NVD
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| Product Name | Status | Defect | Fixed | Downloads |
|---|---|---|---|---|
| Linux | ||||
| Wind River Linux LTS 17 | Requires LTSS | -- | -- | -- |
| Wind River Linux 8 | Requires LTSS | -- | -- | -- |
| Wind River Linux 9 | Requires LTSS | -- | -- | -- |
| Wind River Linux 7 | Requires LTSS | -- | -- | -- |
| Wind River Linux LTS 21 | Investigate | -- | -- | -- |
| Wind River Linux LTS 22 | Fixed |
LIN1022-9399 |
10.22.33.17 | -- |
| Wind River Linux LTS 18 | Requires LTSS | -- | -- | -- |
| Wind River Linux LTS 19 | Investigate | -- | -- | -- |
| Wind River Linux CD release | N/A | -- | -- | -- |
| Wind River Linux 6 | Requires LTSS | -- | -- | -- |
| Wind River Linux LTS 23 | Fixed |
LIN1023-6689 |
10.23.30.12 | -- |
| VxWorks | ||||
| VxWorks 7 | Not Vulnerable | -- | -- | -- |
| VxWorks 6.9 | Not Vulnerable | -- | -- | -- |
| Helix Virtualization Platform Cert Edition | ||||
| Helix Virtualization Platform Cert Edition | Not Vulnerable | -- | -- | -- |
| eLxr | ||||
| eLxr 12 | Fixed | -- | 6.1.94-1 | -- |
| Product Name | Status | Defect | Fixed | Downloads |
|---|
