ALSA: hda: Fix missing pointer check in hda_component_manager_init function
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.189, 6.6.158, 6.12.59, 6.17.5, 6.18
Vendor assessments
Red Hat
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2025-40097
- 2026-10-03 Alias added: GHSA-9cqx-9fcv-mjx8
- 2026-10-03 Fix available: Linux/Linux@1c3f4b15eb1850558d7d4da74b98cffbb8121721, Linux/[email protected], Linux/[email protected] +1 · CNA
- 2026-10-03 2 new references · CNA
References
Other 5
- https://git.kernel.org/stable/c/b044aa6ae63391ba40c93ca5d476d276cb17db1b
- https://git.kernel.org/stable/c/1c3f4b15eb1850558d7d4da74b98cffbb8121721
- https://git.kernel.org/stable/c/218a8504e62fc2c8a1fd12523346b7a2b9bd2474
- https://git.kernel.org/stable/c/47d1b9ca923b55c3f407788f1f15b04957e0e027
- https://git.kernel.org/stable/c/1cf11d80db5df805b538c942269e05a65bcaf5bc
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- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2025-40097 · CVE Program
- CVE-2025-40097 · NVD
- FIRST EPSS
- GHSA-9cqx-9fcv-mjx8 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-40097 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences