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CVE-2026-64521— pinctrl: meson: amlogic-a4: fix deadlock issue

AI Predicted 4.7 Difficulty: Moderate EPSS 0.21% · P11

Possible ATT&CK Techniques 1AI

T1564.004 · NTFS File Attributes

Affected Version Matrix 8

VendorProductVersion RangeStatus
LinuxLinux6e9be3abb78c2f6c97a51070004a5165702f0ed9< e917713f013423069782ff554935c7a5d4266783affected
6e9be3abb78c2f6c97a51070004a5165702f0ed9< 744ac926c0e55267a10b49b5b72582afef4ad49faffected
6e9be3abb78c2f6c97a51070004a5165702f0ed9< e72ce029810390eb987a036fb2c8a5da9a23b685affected
6.15affected
< 6.15unaffected
6.18.34≤ 6.18.*unaffected
7.0.11≤ 7.0.*unaffected
7.1≤ *unaffected
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I. Basic Information for CVE-2026-64521

Vulnerability Information
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Vulnerability Title
pinctrl: meson: amlogic-a4: fix deadlock issue
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: pinctrl: meson: amlogic-a4: fix deadlock issue Accessing the pinconf-pins sysfs node may deadlock. pinconf_pins_show() holds pctldev->mutex, and the platform driver calls pinctrl_find_gpio_range_from_pin(), which tries to acquire the same mutex again, leading to a deadlock. Use pinctrl_find_gpio_range_from_pin_nolock() to fix this issue.
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 6e9be3abb78c2f6c97a51070004a5165702f0ed9 ~ e917713f013423069782ff554935c7a5d4266783 -
LinuxLinux 6.15 -

II. Public POCs for CVE-2026-64521

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III. Intelligence Information for CVE-2026-64521

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Patches & Fixes for CVE-2026-64521 (3)

Same Patch Batch · Linux · 2026-07-25 · 274 CVEs total

CVE-2026-64340USB: legousbtower: fix use-after-free on disconnect race
CVE-2026-64358media: mtk-jpeg: cancel workqueue on release for supported platforms only
CVE-2026-64356xfs: fix memory leak in xfs_dqinode_metadir_create()
CVE-2026-64354bpf: Validate BTF repeated field counts before expansion
CVE-2026-64355bpf: Reject fragmented frames in devmap
CVE-2026-64352bpf: Allow LPM map access from sleepable BPF programs
CVE-2026-64353bpf: Keep dynamic inner array lookups nullable
CVE-2026-64351net: usb: kalmia: bound RX frame length in kalmia_rx_fixup()
CVE-2026-64350usb: cdnsp: fix stream context array leak in cdnsp_alloc_stream_info()
CVE-2026-64349usb: dwc3: fix dwc3_readl() and dwc3_writel() calls in dwc3_ulpi_setup()
CVE-2026-64348usb: free iso schedules on failed submit
CVE-2026-64347usb: gadget: composite: fix dead empty check in the USB_DT_OTG handler
CVE-2026-64346usb: gadget: udc: Fix use-after-free in gadget_match_driver
CVE-2026-64345usb: gadget: f_printer: take kref only for successful open
CVE-2026-64344USB: idmouse: fix use-after-free on disconnect race
CVE-2026-64343USB: ldusb: fix use-after-free on disconnect race
CVE-2026-64341USB: iowarrior: fix use-after-free on disconnect race
CVE-2026-64342USB: iowarrior: fix use-after-free on disconnect
CVE-2026-64331usbip: vudc: fix NULL deref in vep_dequeue()
CVE-2026-64328usb: gadget: f_fs: Fix DMA fence leak

Showing top 20 of 274 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-64521

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