usb: dwc2: check return value after calling platform_get_resource()
Priority LOW 24CWE-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
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: dwc2: check return value after calling platform_get_resource() It will cause null-ptr-deref if platform_get_resource() returns NULL, we need check the return value.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00244 15th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 4.14.250, 4.19.210, 5.4.152 +3
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 | 4.11 and later | 4.14.250, 4.19.210, 5.4.152, 5.10.72, 5.14.11, 5.15 | Patch available | CNA |
- Linux VendorLinux Affected 4.11 and later Fixed in 4.14.250, 4.19.210, 5.4.152, 5.10.72, 5.14.11, 5.15 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 4.14.250; 4.15 to before 4.19.210; 4.20 to before 5.4.152; 5.5 to before 5.10.72; 5.11 to before 5.14.11 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:* | 5.15 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:* | 5.15 rc2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 4.14.250; 4.15 to before 4.19.210; 4.20 to before 5.4.152; 5.5 to before 5.10.72; 5.11 to before 5.14.11 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:* Versions 5.15 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:* Versions 5.15 rc2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.14.250, 4.19.210, 5.4.152, 5.10.72, 5.14.11, 5.15
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
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-2021-47409
- 2026-10-03 Alias added: GHSA-2pp7-rwqg-2gcx
References
Patch 6
- https://git.kernel.org/stable/c/4b7f4a0eb92bf37bea4cd838c7f83ea42823ca8b
- https://git.kernel.org/stable/c/a7182993dd8e09f96839ddc3ac54f9b37370d282
- https://git.kernel.org/stable/c/8b9c1c33e51d0959f2aec573dfbac0ffd3f5c0b7
- https://git.kernel.org/stable/c/2754fa3b73df7d0ae042f3ed6cfd9df9042f6262
- https://git.kernel.org/stable/c/337f00a0bc62d7cb7d10ec0b872c79009a1641df
- https://git.kernel.org/stable/c/856e6e8e0f9300befa87dde09edb578555c99a82
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- 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
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2021-47409 · CVE Program
- CVE-2021-47409 · NVD
- FIRST EPSS
- GHSA-2pp7-rwqg-2gcx · GitHub Advisory Database · CC BY 4.0
- CVE-2021-47409 · Red Hat security data · CC BY 4.0
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