CVE-2026-93274
N/A
Summary
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
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | ba696b470839d70c6b8290c1f798bac7fb2a584c < d428863ca8baa4e9eaf781266ac219b017dcf277 | affected |
| Linux | Linux | 79c6d4fa1be1fd0819c50ebb4dee101bbbc4d20e < f494cfc254cd509d7cbc44b843e0a6602a520a33 | affected |
| Linux | Linux | 266423e60ea1b953fcc0cd97f3dad85857e434d1 < dd6b1919e41d1260259c4505777be565fb3a7efd | affected |
| Linux | Linux | 266423e60ea1b953fcc0cd97f3dad85857e434d1 < 3b978fd0a3092b25561ac26bc1a87149fa981ddc | affected |
| Linux | Linux | 266423e60ea1b953fcc0cd97f3dad85857e434d1 < b8535f5c77cc61352d02a0c038a280127a8b8208 | affected |
| Linux | Linux | 266423e60ea1b953fcc0cd97f3dad85857e434d1 < 68ea6dd23b732081826c36033835468383487864 | affected |
| Linux | Linux | 266423e60ea1b953fcc0cd97f3dad85857e434d1 < 727f043d699ab0d5d87122c2177f2b45fbe58d35 | affected |
| Linux | Linux | 266423e60ea1b953fcc0cd97f3dad85857e434d1 < 32711f77db0641e57fd96fdc013bf1286b9f2514 | affected |
| Linux | Linux | 75278f1aff5e14c904d3503c6f836c42a7afb441 | affected |
| Linux | Linux | 5.10.89 < 5.10.270 | affected |
| Linux | Linux | 5.15.12 < 5.15.221 | affected |
| Linux | Linux | 5.4.175 < 5.5 | affected |
| Linux | Linux | 5.16 | affected |
| Linux | Linux | 0 < 5.16 | unaffected |
| Linux | Linux | 5.10.270 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.221 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.188 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.157 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.110 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.52 <= 6.18.* | unaffected |
| Linux | Linux | 7.2.6 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/d428863ca8baa4e9eaf781266ac219b017dcf277
- https://git.kernel.org/stable/c/f494cfc254cd509d7cbc44b843e0a6602a520a33
- https://git.kernel.org/stable/c/dd6b1919e41d1260259c4505777be565fb3a7efd
- https://git.kernel.org/stable/c/3b978fd0a3092b25561ac26bc1a87149fa981ddc
- https://git.kernel.org/stable/c/b8535f5c77cc61352d02a0c038a280127a8b8208
- https://git.kernel.org/stable/c/68ea6dd23b732081826c36033835468383487864
- https://git.kernel.org/stable/c/727f043d699ab0d5d87122c2177f2b45fbe58d35
- https://git.kernel.org/stable/c/32711f77db0641e57fd96fdc013bf1286b9f2514
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.