# CVE-2022-48945: media: vivid: fix compose size exceed boundary

> A boundary check error in the Linux kernel vivid driver allows a local attacker to cause a kernel crash via a page fault.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 23 Sep 2024
- **Updated:** 5 Aug 2026
- **Also known as:** DEBIAN-CVE-2022-48945, GHSA-g3vj-v55c-g2x7, UBUNTU-CVE-2022-48945

## What is CVE-2022-48945?

CVE-2022-48945 is a high-severity memory corruption vulnerability in Linux kernel, published on 23 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In the Linux kernel, the following vulnerability has been resolved:

media: vivid: fix compose size exceed boundary

syzkaller found a bug:

 BUG: unable to handle page fault for address: ffffc9000a3b1000
 #PF: supervisor write access in kernel mode
 #PF: error_code(0x0002) - not-present page
 PGD 100000067 P4D 100000067 PUD 10015f067 PMD 1121ca067 PTE 0
 Oops: 0002 [#1] PREEMPT SMP
 CPU: 0 PID: 23489 Comm: vivid-000-vid-c Not tainted 6.1.0-rc1+ #512
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
 RIP: 0010:memcpy_erms+0x6/0x10
[...]
 Call Trace:
  <TASK>
  ? tpg_fill_plane_buffer+0x856/0x15b0
  vivid_fillbuff+0x8ac/0x1110
  vivid_thread_vid_cap_tick+0x361/0xc90
  vivid_thread_vid_cap+0x21a/0x3a0
  kthread+0x143/0x180
  ret_from_fork+0x1f/0x30
  </TASK>

This is because we forget to check boundary after adjust compose->height
int V4L2_SEL_TGT_CROP case. Add v4l2_rect_map_inside() to fix this problem
for this case.

## Which versions are affected by CVE-2022-48945?

It affects 1 product.


Products: Linux kernel.

## How do I fix CVE-2022-48945?

Apply the vendor's patch.

## Is CVE-2022-48945 being exploited?

There is no known exploitation of CVE-2022-48945 in the wild and no public exploit code.

## Other vulnerabilities in Linux kernel

- [CVE-2026-53266](https://insights.sbomify.com/CVE-2026-53266/): Linux Kernel Out-of-Bounds Write (high 8.8, exploited in the wild)
- [CVE-2013-6282](https://insights.sbomify.com/CVE-2013-6282/): Linux Kernel Improper Input Validation (high 8.8, exploited in the wild)
- [CVE-2022-0185](https://insights.sbomify.com/CVE-2022-0185/): Linux Kernel Heap-Based Buffer Overflow (high 8.4, exploited in the wild)
- [CVE-2013-2094](https://insights.sbomify.com/CVE-2013-2094/): Linux Kernel Privilege Escalation (high 8.4, exploited in the wild)
- [CVE-2026-53362](https://insights.sbomify.com/CVE-2026-53362/): Linux Kernel Unspecified (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-48945 and fix it if it is affected.

What it is: CVE-2022-48945 is a high-severity memory corruption vulnerability in Linux kernel, published on 23 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-48945 in the wild and no public exploit code.

Affected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-48945/ (Markdown: https://insights.sbomify.com/CVE-2022-48945/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-48945
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-48945
- OSV: https://osv.dev/vulnerability/CVE-2022-48945

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-48945/
Summaries are generated and may contain mistakes; the official description above is the record.