CVE-2026-72241: leds: uleds: Fix potential buffer overread

Severity: unknown
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-15 · updated 2026-08-17

Description

In the Linux kernel, the following vulnerability has been resolved: leds: uleds: Fix potential buffer overread The name string supplied by userspace is not guaranteed to be null-terminated, so using strchr() on it might result in a buffer overread. The same thing will happen when said string is used by the LED class device. Fix this by using strnchr() instead and explicitly check that the name string is properly null-terminated.

Affected products

Linux kernel: 4.10 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/263ccdd627caeda6e980ed3c6e32bb4fd6b380b1
https://git.kernel.org/stable/c/5ad6f6c9209e5777b896def9876708853ae26d0d
https://git.kernel.org/stable/c/5bb89e23729f3a59592d699a437bb001f24b8f67
https://git.kernel.org/stable/c/6dd51d84a9502553e58beade72823258871b8111
https://git.kernel.org/stable/c/8bf529571cca60fb8af65d6d034bdbbc99a9127c
https://git.kernel.org/stable/c/a84c59121dfdc7b324f72dc5012aa8fe5e7d2d7b
https://git.kernel.org/stable/c/a91ac9fdac7385cbc98aeae55b4e5302125497a2
https://git.kernel.org/stable/c/c19fe864f667afc49d1391d764e20b66555bcf7a

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