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CVE-2026-72133

HIGHCVSS 8.4/10EPSS 0.21%

Last modified

CVE-2026-72133 is a high-severity vulnerability rated 8.4/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: spi: uniphier: Fix completion initialization order before devm_request_irq() The driver calls devm_request_irq() before initializing the completion used by the interrupt handler. Because the interrupt may occur immediately after devm_request_irq(), the handler may execute before init_completion(). This may result in calling complete() on an uninitialized completion, causing undefined behavior. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: spi: uniphier: Fix completion initialization order before devm_request_irq() The driver calls devm_request_irq() before initializing the completion used by the interrupt handler. Because the interrupt may occur immediately after devm_request_irq(), the handler may execute before init_completion(). This may result in calling complete() on an uninitialized completion, causing undefined behavior. This has been observed with KASAN. Fix this by initializing the completion before registering the IRQ.

Metrics

CVSS 3.1
8.4/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.21%

11.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177, < b9fcf0db433d79648ace74bc2b8b88f91e306304; >= 5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177, < 82a5746c4c9e94f6f816ec7edea6ddc24417c6a5; >= 5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177, < f4bb0a91f7badd6d15ac8d783a1169d9e1e95c17; >= 5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177, < 49f6705d80b5e6175d8435d9c72b66bd516a8e89; >= 5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177, < 8b5798ce0007874c14611b8ee4ce6c749855260e; >= 5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177, < d44b828eb551bd59ba9f22457825cc3db3a39fc1; >= 5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177, < 077a7bc1c32d3da9670c5e282ea3e5ac8a94be59; >= 5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177, < f3ad1c87d8201e54b66bd6072442f0b5d5a308ee
LinuxLinux4.19

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-72133?
In the Linux kernel, the following vulnerability has been resolved: spi: uniphier: Fix completion initialization order before devm_request_irq() The driver calls devm_request_irq() before initializing the completion used by the interrupt handler. Because the interrupt may occur immediately after devm_request_irq(), the handler may execute before init_completion(). This may result in calling complete() on an uninitialized completion, causing undefined behavior. This has been observed with KASAN. Fix this by initializing the completion before registering the IRQ.
How severe is CVE-2026-72133?
CVE-2026-72133 has a CVSS score of 8.4/10 (HIGH severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.
How do I fix CVE-2026-72133?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST