FKIE_CVE-2026-93274
Vulnerability from fkie_nvd - Published: 2026-09-24 16:17 - Updated: 2026-09-24 16:17
Severity
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
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/pinctrl/bcm/pinctrl-bcm2835.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "d428863ca8baa4e9eaf781266ac219b017dcf277",
"status": "affected",
"version": "ba696b470839d70c6b8290c1f798bac7fb2a584c",
"versionType": "git"
},
{
"lessThan": "f494cfc254cd509d7cbc44b843e0a6602a520a33",
"status": "affected",
"version": "79c6d4fa1be1fd0819c50ebb4dee101bbbc4d20e",
"versionType": "git"
},
{
"lessThan": "dd6b1919e41d1260259c4505777be565fb3a7efd",
"status": "affected",
"version": "266423e60ea1b953fcc0cd97f3dad85857e434d1",
"versionType": "git"
},
{
"lessThan": "3b978fd0a3092b25561ac26bc1a87149fa981ddc",
"status": "affected",
"version": "266423e60ea1b953fcc0cd97f3dad85857e434d1",
"versionType": "git"
},
{
"lessThan": "b8535f5c77cc61352d02a0c038a280127a8b8208",
"status": "affected",
"version": "266423e60ea1b953fcc0cd97f3dad85857e434d1",
"versionType": "git"
},
{
"lessThan": "68ea6dd23b732081826c36033835468383487864",
"status": "affected",
"version": "266423e60ea1b953fcc0cd97f3dad85857e434d1",
"versionType": "git"
},
{
"lessThan": "727f043d699ab0d5d87122c2177f2b45fbe58d35",
"status": "affected",
"version": "266423e60ea1b953fcc0cd97f3dad85857e434d1",
"versionType": "git"
},
{
"lessThan": "32711f77db0641e57fd96fdc013bf1286b9f2514",
"status": "affected",
"version": "266423e60ea1b953fcc0cd97f3dad85857e434d1",
"versionType": "git"
},
{
"status": "affected",
"version": "75278f1aff5e14c904d3503c6f836c42a7afb441",
"versionType": "git"
},
{
"lessThan": "5.10.270",
"status": "affected",
"version": "5.10.89",
"versionType": "semver"
},
{
"lessThan": "5.15.221",
"status": "affected",
"version": "5.15.12",
"versionType": "semver"
},
{
"lessThan": "5.5",
"status": "affected",
"version": "5.4.175",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/pinctrl/bcm/pinctrl-bcm2835.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.16"
},
{
"lessThan": "5.16",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.270",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.221",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3-rc1",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: bcm2835: Don\u0027t remove an unregistered GPIO chip\n\nIf the devm_pinctrl_register() function fails,\nbcm2835_pinctrl_probe() calls gpiochip_remove()\nbefore gpiochip_add_data() has registered the GPIO chip.\n\nThis means that upon failure the gpio_chip.gpiodev\n is NULL resulting in a null pointer dereference\ninside the gpiochip_remove() function.\n\nRemove the unnecessary function call to gpiochip_remove().\nNo GPIO cleanup is required because the GPIO chip\nhas not yet been registered. Without this change there\nis potential for a kernel panic upon registration failure"
}
],
"id": "CVE-2026-93274",
"lastModified": "2026-09-24T16:17:24.527",
"metrics": {},
"published": "2026-09-24T16:17:24.527",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/32711f77db0641e57fd96fdc013bf1286b9f2514"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/3b978fd0a3092b25561ac26bc1a87149fa981ddc"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/68ea6dd23b732081826c36033835468383487864"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/727f043d699ab0d5d87122c2177f2b45fbe58d35"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/b8535f5c77cc61352d02a0c038a280127a8b8208"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/d428863ca8baa4e9eaf781266ac219b017dcf277"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/dd6b1919e41d1260259c4505777be565fb3a7efd"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/f494cfc254cd509d7cbc44b843e0a6602a520a33"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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