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NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package realtime-kernel  (opens in a new tab)

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
1.75% (77th percentile)

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  • Snyk IDSNYK-RHEL10-REALTIMEKERNEL-9890577
  • published28 Apr 2025
  • disclosed1 Jan 2015
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Introduced: 1 Jan 2015

CVE-2015-7566  (opens in a new tab)
CWE-476  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream realtime-kernel package and not the realtime-kernel package as distributed by RHEL.

The clie_5_attach function in drivers/usb/serial/visor.c in the Linux kernel through 4.4.1 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by inserting a USB device that lacks a bulk-out endpoint.

References