Description
In the Linux kernel, the following vulnerability has been resolved:
ALSA: hda: Fix missing pointer check in hda_component_manager_init function
The __component_match_add function may assign the 'matchptr' pointer the value ERR_PTR(-ENOMEM), which will subsequently be dereferenced.
The call stack leading to the error looks like this:
hda_component_manager_init |-> component_match_add |-> component_match_add_release |-> __component_match_add ( ... ,**matchptr, ... ) |-> *matchptr = ERR_PTR(-ENOMEM); // assign |-> component_master_add_with_match( ... match) |-> component_match_realloc(match, match->num); // dereference
Add IS_ERR() check to prevent the crash.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Metrics
No CVSS score has been published yet.
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= ae7abe36e352eddf8e30d3b1ea3fb402514ba13b, < b044aa6ae63391ba40c93ca5d476d276cb17db1b; >= ae7abe36e352eddf8e30d3b1ea3fb402514ba13b, < 1c3f4b15eb1850558d7d4da74b98cffbb8121721; >= ae7abe36e352eddf8e30d3b1ea3fb402514ba13b, < 218a8504e62fc2c8a1fd12523346b7a2b9bd2474; >= ae7abe36e352eddf8e30d3b1ea3fb402514ba13b, < 47d1b9ca923b55c3f407788f1f15b04957e0e027; >= ae7abe36e352eddf8e30d3b1ea3fb402514ba13b, < 1cf11d80db5df805b538c942269e05a65bcaf5bc |
| Linux | Linux | 5.17 |
References
- https://git.kernel.org/stable/c/1c3f4b15eb1850558d7d4da74b98cffbb8121721
- https://git.kernel.org/stable/c/1cf11d80db5df805b538c942269e05a65bcaf5bc
- https://git.kernel.org/stable/c/218a8504e62fc2c8a1fd12523346b7a2b9bd2474
- https://git.kernel.org/stable/c/47d1b9ca923b55c3f407788f1f15b04957e0e027
- https://git.kernel.org/stable/c/b044aa6ae63391ba40c93ca5d476d276cb17db1b
Timeline
- Published
- Oct 30, 2025
- Last modified
- Oct 19, 2026
- NVD status
- Deferred