ALSA: hda/conexant: Fix missing error check for jack detection
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: hda/conexant: Fix missing error check for jack detection In cx_probe(), the return value of snd_hda_jack_detect_enable_callback() is ignored. This function returns a pointer, and if it fails (e.g., due to memory allocation failure), it returns an error pointer which must be checked using IS_ERR(). If the registration fails, the driver continues to probe, but the jack detection callback will not be registered. This can lead to a kernel crash later when the driver attempts to handle jack events or accesses the uninitialized structure. Check the return value using IS_ERR() and propagate the error via PTR_ERR() to the probe caller.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.15.149 to before 5.15.209; 6.1.77 to before 6.1.175; 6.6.16 to before 6.6.141; 6.7.4 to before 6.8 | 5.15.209, 6.1.175, 6.6.141, 6.8 | Patch available | CNA |
| Linux | Linux | 6.8 and later | 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1 | Patch available | CNA |
- Linux VendorLinux Affected 5.15.149 to before 5.15.209; 6.1.77 to before 6.1.175; 6.6.16 to before 6.6.141; 6.7.4 to before 6.8 Fixed in 5.15.209, 6.1.175, 6.6.141, 6.8 Patch available CNA
- Linux VendorLinux Affected 6.8 and later Fixed in 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.15.149 to before 5.15.209; 6.1.77 to before 6.1.175; 6.6.16 to before 6.6.141; 6.7.4 to before 6.12.91; 6.13 to before 6.18.33; 6.19 to before 7.0.10 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | 7.1 rc1 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.15.149 to before 5.15.209; 6.1.77 to before 6.1.175; 6.6.16 to before 6.6.141; 6.7.4 to before 6.12.91; 6.13 to before 6.18.33; 6.19 to before 7.0.10 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* Versions 7.1 rc1 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.209, 6.1.175, 6.6.141, 6.8
- Fix · CNA Linux (Linux) Fixed in 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 4 products
- 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-2026-53291
- 2026-10-03 Alias added: GHSA-7qh4-cc67-w444
- 2026-10-29 Affected versions changed · Red Hat
- 2026-11-06 CISA SSVC decision points changed
References
Patch 7
- https://git.kernel.org/stable/c/49c2c5924552e1d2f8b635dee663abebbb7cf63b
- https://git.kernel.org/stable/c/a2a33e87a2ffce3046c574d24eec4390c27c9365
- https://git.kernel.org/stable/c/d68f753d89f4ef6e410d7e8b7e8ab2fdde921b80
- https://git.kernel.org/stable/c/dd110cc00cf854a8ecd8d003127a4178c28574ea
- https://git.kernel.org/stable/c/f837c7b85143a7c54140ff41ad5c076b73cd9933
- https://git.kernel.org/stable/c/1da5c73f3793b224696617a2a21def7500ba18d6
- https://git.kernel.org/stable/c/b0e2333a231107adedd38c6fcfe1adc6162716fc
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- 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
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2026-53291 · CVE Program
- CVE-2026-53291 · NVD
- FIRST EPSS
- GHSA-7qh4-cc67-w444 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-53291 · 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