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CVE-2026-93274

Unknown

Last modified

CVE-2026-93274 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: pinctrl: bcm2835: Don't remove an unregistered GPIO chip If the devm_pinctrl_register() function fails, bcm2835_pinctrl_probe() calls gpiochip_remove() before gpiochip_add_data() has registered the GPIO chip. This means that upon failure the gpio_chip.gpiodev is NULL resulting in a null pointer dereference inside the gpiochip_remove() function. Remove the unnecessary function call to gpiochip_remove(). No GPIO cleanup is required because the GPIO chip has not yet been registered. Without this change there is potential for a kernel panic upon registration failure.

Description

In the Linux kernel, the following vulnerability has been resolved: pinctrl: bcm2835: Don't remove an unregistered GPIO chip If the devm_pinctrl_register() function fails, bcm2835_pinctrl_probe() calls gpiochip_remove() before gpiochip_add_data() has registered the GPIO chip. This means that upon failure the gpio_chip.gpiodev is NULL resulting in a null pointer dereference inside the gpiochip_remove() function. Remove the unnecessary function call to gpiochip_remove(). No GPIO cleanup is required because the GPIO chip has not yet been registered. Without this change there is potential for a kernel panic upon registration failure

Affected Software

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

VendorProductVersions
LinuxLinux>= ba696b470839d70c6b8290c1f798bac7fb2a584c, < d428863ca8baa4e9eaf781266ac219b017dcf277; >= 79c6d4fa1be1fd0819c50ebb4dee101bbbc4d20e, < f494cfc254cd509d7cbc44b843e0a6602a520a33; >= 266423e60ea1b953fcc0cd97f3dad85857e434d1, < dd6b1919e41d1260259c4505777be565fb3a7efd; >= 266423e60ea1b953fcc0cd97f3dad85857e434d1, < 3b978fd0a3092b25561ac26bc1a87149fa981ddc; >= 266423e60ea1b953fcc0cd97f3dad85857e434d1, < b8535f5c77cc61352d02a0c038a280127a8b8208; >= 266423e60ea1b953fcc0cd97f3dad85857e434d1, < 68ea6dd23b732081826c36033835468383487864; >= 266423e60ea1b953fcc0cd97f3dad85857e434d1, < 727f043d699ab0d5d87122c2177f2b45fbe58d35; >= 266423e60ea1b953fcc0cd97f3dad85857e434d1, < 32711f77db0641e57fd96fdc013bf1286b9f2514; 75278f1aff5e14c904d3503c6f836c42a7afb441; >= 5.10.89, < 5.10.270; >= 5.15.12, < 5.15.221; >= 5.4.175, < 5.5
LinuxLinux5.16

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-93274?
In the Linux kernel, the following vulnerability has been resolved: pinctrl: bcm2835: Don't remove an unregistered GPIO chip If the devm_pinctrl_register() function fails, bcm2835_pinctrl_probe() calls gpiochip_remove() before gpiochip_add_data() has registered the GPIO chip. This means that upon failure the gpio_chip.gpiodev is NULL resulting in a null pointer dereference inside the gpiochip_remove() function. Remove the unnecessary function call to gpiochip_remove(). No GPIO cleanup is required because the GPIO chip has not yet been registered. Without this change there is potential for a kernel panic upon registration failure
How severe is CVE-2026-93274?
Severity scoring for CVE-2026-93274 is pending analysis.
How do I fix CVE-2026-93274?
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