CVE-2026-23202

Medium

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.

Package Linux Kernel
Published 2026-02-14
Last modified 2026-03-19
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

5.5

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-476

CVE-2026-23202 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.17.13, 5.15.198, 6.1.160, 6.6.120, 6.12.63, 6.18.2 and later are affected. Fixed in 6.18, 5.15.200, 6.1.163, 6.6.124, 6.12.70, 6.18.10 and their respective stable series.

Affected from
≥ 6.17.13 ≥ 5.15.198 ≥ 6.1.160 ≥ 6.6.120 ≥ 6.12.63 ≥ 6.18.2
Fixed in
✓ 6.18 6.18.x ✓ 5.15.200 5.15.x ✓ 6.1.163 6.1.x ✓ 6.6.124 6.6.x ✓ 6.12.70 6.12.x ✓ 6.18.10 6.18.x

References

6 total
Showing 5 of 6 references View all on NVD

Frequently asked questions

  • What is CVE-2026-23202?

    CVE-2026-23202 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 6.17.13 onward and has been patched in 6.18, 5.15.200, 6.1.163 and others. CVE-2026-23202 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2026-23202?

    CVE-2026-23202 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2026-23202?

    Yes. CVE-2026-23202 has been patched. Fixed versions include 6.18, 5.15.200, 6.1.163 and others. If you are running Linux kernel 6.17.13 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-23202 actively exploited?

    No. CVE-2026-23202 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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