---
id: CVE-2026-23202
title: 'spi: tegra210-quad: Protect curr_xfer in tegra_qspi_combined_seq_xfer'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  spi: tegra210-quad: Protect curr_xfer in tegra_qspi_combined_seq_xfer

  The curr_xfer field is read by the IRQ handler without holding the lock
  to check if a transfer is…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 88db8bb7ed1bb474618acdf05ebd4f0758d244e2 <
    9fa4262a80f751d14a6a39d2c03f57db68da2618
  - >-
    Linux >= 83309dd551cfd60a5a1a98d9cab19f435b44d46d <
    762e2ce71c8f0238e9eaf05d14da803d9a24422f
  - >-
    Linux >= c934e40246da2c5726d14e94719c514e30840df8 <
    712cde8d916889e282727cdf304a43683adf899e
  - >-
    Linux >= 551060efb156c50fe33799038ba8145418cfdeef <
    6fd446178a610a48e80e5c5b487b0707cd01daac
  - >-
    Linux >= 01bbf25c767219b14c3235bfa85906b8d2cb8fbc <
    3bc293d5b56502068481478842f57b3d96e432c7
  - >-
    Linux >= b4e002d8a7cee3b1d70efad0e222567f92a73000 <
    bf4528ab28e2bf112c3a2cdef44fd13f007781cd
  - Linux bb0c58be84f907285af45657c1d4847b960a12bf
  - Linux >= 6.17.13 < 6.18
  - Linux >= 5.15.198 < 5.15.200
  - Linux >= 6.1.160 < 6.1.163
  - Linux >= 6.6.120 < 6.6.124
  - Linux >= 6.12.63 < 6.12.70
  - Linux >= 6.18.2 < 6.18.10
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-06-10T20:41:13.077528Z'
published: '2026-02-14'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T18:35:38.384Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-23202'
references:
  - url: 'https://git.kernel.org/stable/c/9fa4262a80f751d14a6a39d2c03f57db68da2618'
  - url: 'https://git.kernel.org/stable/c/762e2ce71c8f0238e9eaf05d14da803d9a24422f'
  - url: 'https://git.kernel.org/stable/c/712cde8d916889e282727cdf304a43683adf899e'
  - url: 'https://git.kernel.org/stable/c/6fd446178a610a48e80e5c5b487b0707cd01daac'
  - url: 'https://git.kernel.org/stable/c/3bc293d5b56502068481478842f57b3d96e432c7'
  - url: 'https://git.kernel.org/stable/c/bf4528ab28e2bf112c3a2cdef44fd13f007781cd'
tags:
  - cve.org
epss: 0.0013
epssPercentile: 0.02333
ingestedAt: '2026-10-19T19:38:06.501Z'
---

## Overview

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

spi: tegra210-quad: Protect curr_xfer in tegra_qspi_combined_seq_xfer

The curr_xfer field is read by the IRQ handler without holding the lock
to check if a transfer is in progress. When clearing curr_xfer in the
combined sequence transfer loop, protect it with the spinlock to prevent
a race with the interrupt handler.

Protect the curr_xfer clearing at the exit path of
tegra_qspi_combined_seq_xfer() with the spinlock to prevent a race
with the interrupt handler that reads this field.

Without this protection, the IRQ handler could read a partially updated
curr_xfer value, leading to NULL pointer dereference or use-after-free.

## Affected

- `Linux >= 88db8bb7ed1bb474618acdf05ebd4f0758d244e2 < 9fa4262a80f751d14a6a39d2c03f57db68da2618`
- `Linux >= 83309dd551cfd60a5a1a98d9cab19f435b44d46d < 762e2ce71c8f0238e9eaf05d14da803d9a24422f`
- `Linux >= c934e40246da2c5726d14e94719c514e30840df8 < 712cde8d916889e282727cdf304a43683adf899e`
- `Linux >= 551060efb156c50fe33799038ba8145418cfdeef < 6fd446178a610a48e80e5c5b487b0707cd01daac`
- `Linux >= 01bbf25c767219b14c3235bfa85906b8d2cb8fbc < 3bc293d5b56502068481478842f57b3d96e432c7`
- `Linux >= b4e002d8a7cee3b1d70efad0e222567f92a73000 < bf4528ab28e2bf112c3a2cdef44fd13f007781cd`
- `Linux bb0c58be84f907285af45657c1d4847b960a12bf`
- `Linux >= 6.17.13 < 6.18`
- `Linux >= 5.15.198 < 5.15.200`
- `Linux >= 6.1.160 < 6.1.163`
- `Linux >= 6.6.120 < 6.6.124`
- `Linux >= 6.12.63 < 6.12.70`
- `Linux >= 6.18.2 < 6.18.10`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.