media: staging/intel-ipu3: Fix set_fmt error handling
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · 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-131 and the CVSS impact.
Summary
In the Linux kernel, the following vulnerability has been resolved: media: staging/intel-ipu3: Fix set_fmt error handling If there in an error during a set_fmt, do not overwrite the previous sizes with the invalid config. Without this patch, v4l2-compliance ends up allocating 4GiB of RAM and causing the following OOPs [ 38.662975] ipu3-imgu 0000:00:05.0: swiotlb buffer is full (sz: 4096 bytes) [ 38.662980] DMA: Out of SW-IOMMU space for 4096 bytes at device 0000:00:05.0 [ 38.663010] general protection fault: 0000 [#1] PREEMPT SMP
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 | 5.2 and later | 5.4.118, 5.10.36, 5.11.20, 5.12.3, 5.13 | Patch available | CNA |
- Linux VendorLinux Affected 5.2 and later Fixed in 5.4.118, 5.10.36, 5.11.20, 5.12.3, 5.13 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.2.0 to before 5.4.118; 5.5.0 to before 5.10.36; 5.11.0 to before 5.11.20; 5.12.0 to before 5.12.3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.2.0 to before 5.4.118; 5.5.0 to before 5.10.36; 5.11.0 to before 5.11.20; 5.12.0 to before 5.12.3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.4.118, 5.10.36, 5.11.20, 5.12.3, 5.13
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
Not affected: 2 products
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2021-46943
- 2026-10-03 Alias added: GHSA-p45j-q5hm-cc64
References
Patch 5
- https://git.kernel.org/stable/c/a03fb1e8a110658215a4cefc3e2ad53279e496a6
- https://git.kernel.org/stable/c/c6b81b897f6f9445d57f8d47c4e060ec21556137
- https://git.kernel.org/stable/c/34892ea938387d83ffcfb7775ec55f0f80767916
- https://git.kernel.org/stable/c/6fb617e37a39db0a3eca4489431359d0bdf3b9bc
- https://git.kernel.org/stable/c/ad91849996f9dd79741a961fd03585a683b08356
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-2021-46943 · CVE Program
- CVE-2021-46943 · NVD
- FIRST EPSS
- GHSA-p45j-q5hm-cc64 · GitHub Advisory Database · CC BY 4.0
- CVE-2021-46943 · 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