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CVE-2026-93274— pinctrl: bcm2835: Don't remove an unregistered GPIO chip

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux 内核中，已修复以下漏洞： pinctrl: bcm2835：不要移除未注册的 GPIO 芯片 如果 函数调用失败， 会在 注册 GPIO 芯片之前调用 。 这意味着在失败情况下， 为 NULL，从而导致在 函数内部发生空指针解引用。 移除对 的不必要函数调用。由于 GPIO 芯片尚未注册，因此不需要进行 GPIO 清理操作。如果不进行此修复，在注册失败时可能导致内核恐慌（kernel panic）。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.20% · P9

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 22

VendorProduct Version RangeStatus
Linux Linux ba696b470839d70c6b8290c1f798bac7fb2a584c< d428863ca8baa4e9eaf781266ac219b017dcf277 affected
79c6d4fa1be1fd0819c50ebb4dee101bbbc4d20e< f494cfc254cd509d7cbc44b843e0a6602a520a33 affected
266423e60ea1b953fcc0cd97f3dad85857e434d1< dd6b1919e41d1260259c4505777be565fb3a7efd affected
266423e60ea1b953fcc0cd97f3dad85857e434d1< 3b978fd0a3092b25561ac26bc1a87149fa981ddc affected
266423e60ea1b953fcc0cd97f3dad85857e434d1< b8535f5c77cc61352d02a0c038a280127a8b8208 affected
266423e60ea1b953fcc0cd97f3dad85857e434d1< 68ea6dd23b732081826c36033835468383487864 affected
266423e60ea1b953fcc0cd97f3dad85857e434d1< 727f043d699ab0d5d87122c2177f2b45fbe58d35 affected
266423e60ea1b953fcc0cd97f3dad85857e434d1< 32711f77db0641e57fd96fdc013bf1286b9f2514 affected
… +14 more rows
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I. Basic Information for CVE-2026-93274

Vulnerability Information
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Vulnerability Title
pinctrl: bcm2835: Don't remove an unregistered GPIO chip
Source: CVE Program / CVE List V5
Vulnerability 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
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux ba696b470839d70c6b8290c1f798bac7fb2a584c ~ d428863ca8baa4e9eaf781266ac219b017dcf277 -
Linux Linux 5.16 -

II. Public POCs for CVE-2026-93274

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III. Intelligence Information for CVE-2026-93274

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Patches & Fixes for CVE-2026-93274 (8)

Same Patch Batch · Linux · 2026-09-24 · 234 CVEs total

CVE-2026-93207 9.8 CRITICAL SUNRPC: Zero rpc_gss_wire_cred at svcauth_gss_decode_credbody() entry
CVE-2026-97413 9.8 CRITICAL RDMA/rtrs-srv: Fix integer underflow in process_read and process_write
CVE-2026-93228 9.1 CRITICAL svcrdma: Reject Write/Reply chunks with segcount 0
CVE-2026-93793 8.8 HIGH wifi: iwlwifi: mvm: validate TX_CMD response layout
CVE-2026-93799 8.8 HIGH wifi: iwlwifi: mvm: validate sta_id in BA window status notif
CVE-2026-93790 8.8 HIGH wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif
CVE-2026-93806 8.8 HIGH wifi: cfg80211: validate assoc response length before status and IE access
CVE-2026-97442 8.8 HIGH wifi: ath11k: fix invalid data access in ath11k_dp_rx_h_undecap_nwifi
CVE-2026-97509 8.8 HIGH thunderbolt: Keep XDomain reference during the lifetime of a service
CVE-2026-97409 8.8 HIGH nvme-fc: Do not cancel requests in io target before it is initialized
CVE-2026-93280 8.8 HIGH greybus: audio: bound the topology section sizes against the fetched size
CVE-2026-93284 8.8 HIGH drm/pagemap: dma-unmap pages before handling migration errors
CVE-2026-97451 8.4 HIGH ACPICA: Fix integer overflow in acpi_ex_opcode_3A_1T_1R() (mid_op)
CVE-2026-97452 8.4 HIGH ACPICA: Prevent adding invalid references
CVE-2026-97455 8.4 HIGH ACPICA: Fix use-after-free in acpi_ds_terminate_control_method()
CVE-2026-97450 8.4 HIGH ACPICA: validate handler object type in two places
CVE-2026-93827 8.4 HIGH virtio-fs: avoid double-free on failed queue setup
CVE-2026-97433 8.2 HIGH nvme: validate FDP configuration descriptor sizes
CVE-2026-93221 8.1 HIGH nfsd: convert nfsd_net boolean flags to unsigned long flags word
CVE-2026-93786 8.1 HIGH ksmbd: preserve VFS inherited POSIX ACL mask

Showing top 20 of 234 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-93274

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