ALSA: jack: Access input_dev under mutex
Priority LOW 25CWE-476Published · Updated
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: 5 fixed, 3 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: jack: Access input_dev under mutex It is possible when using ASoC that input_dev is unregistered while calling snd_jack_report, which causes NULL pointer dereference. In order to prevent this serialize access to input_dev using mutex lock.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00272 19th percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.9.318, 4.14.283, 4.19.247 +6Red Hat: 2 advisoriesRed Hat: 5 fixed, 3 without a fix
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 | 3.13 and later | 4.9.318, 4.14.283, 4.19.247, 5.4.198, 5.10.121, 5.15.46, 5.17.14, 5.18.3, 5.19 | Patch available | CNA |
- Linux VendorLinux Affected 3.13 and later Fixed in 4.9.318, 4.14.283, 4.19.247, 5.4.198, 5.10.121, 5.15.46, 5.17.14, 5.18.3, 5.19 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 4.9.318; 4.10 to before 4.14.283; 4.15 to before 4.19.247; 4.20 to before 5.4.198; 5.5 to before 5.10.121; 5.11 to before 5.15.46; 5.16 to before 5.17.14; 5.18 to before 5.18.3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 4.9.318; 4.10 to before 4.14.283; 4.15 to before 4.19.247; 4.20 to before 5.4.198; 5.5 to before 5.10.121; 5.11 to before 5.15.46; 5.16 to before 5.17.14; 5.18 to before 5.18.3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.9.318, 4.14.283, 4.19.247, 5.4.198, 5.10.121, 5.15.46, 5.17.14, 5.18.3, 5.19
Red Hat 2 advisories
- RHSA-2022:8267 Released 2022-11-15 · Red Hat rating Moderatekernel security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-162.6.1.el9_1
- Red Hat Enterprise Linux AppStream (v. 9) kernel-debug-devel-5.14.0-162.6.1.el9_1, kernel-debug-devel-matched-5.14.0-162.6.1.el9_1, kernel-devel-5.14.0-162.6.1.el9_1 +5
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-5.14.0-162.6.1.el9_1, kernel-5.14.0-162.6.1.el9_1, kernel-abi-stablelists-5.14.0-162.6.1.el9_1 +14
- RHSA-2022:7683 Released 2022-11-08 · Red Hat rating Moderatekernel security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-425.3.1.el8
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-425.3.1.el8, kernel-4.18.0-425.3.1.el8, kernel-abi-stablelists-4.18.0-425.3.1.el8 +19
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2022:7683 |
| Red Hat CodeReady Linux Builder (v. 9) | Fixed | RHSA-2022:8267 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2022:8267 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2022:7683 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2022:8267 |
Not affected: 2 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2022-49538
- 2026-10-03 Alias added: GHSA-qfpm-q7vw-vgqq
References
Patch 9
- https://git.kernel.org/stable/c/74bab3bcf422593c582e47130aa8eb41ebb2dc09
- https://git.kernel.org/stable/c/8487a88136d54a1a4d3f26f1399685db648ab879
- https://git.kernel.org/stable/c/c093b62c40027c21d649c5534ad7aa3605a99b00
- https://git.kernel.org/stable/c/f68bed124c7699e23ffb4ce4fcc84671e9193cde
- https://git.kernel.org/stable/c/e2b8681769f6e205382f026b907d28aa5ec9d59a
- https://git.kernel.org/stable/c/5cc6f623f4818c7d7e9e966a45ebf324901ca9c5
- https://git.kernel.org/stable/c/9e6a73b0c0f2014eb89249fb1640c5a3d58221c4
- https://git.kernel.org/stable/c/582aea6084cc59fec881204f026816d1219f2348
- https://git.kernel.org/stable/c/1b6a6fc5280e97559287b61eade2d4b363e836f2
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Sources
- CVE-2022-49538 · CVE Program
- CVE-2022-49538 · NVD
- FIRST EPSS
- GHSA-qfpm-q7vw-vgqq · GitHub Advisory Database · CC BY 4.0
- CVE-2022-49538 · 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