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A memory leak vulnerability was identified and resolved in the Linux kernel's x86 platform driver toshiba_haps. The issue involved improper handling of allocated memory in the add and remove routines, causing memory leaks. This vulnerability affects the linux-aws kernel versions prior to certain 5.15.x releases. The issue has been fixed by updating the kernel to versions that use devm_kzalloc() for memory allocation to prevent leaks. This vulnerability is part of a broader set of Linux kernel security fixes addressing multiple subsystems. No known exploits are reported in the wild for this specific issue.

CVE-2026-23176 addresses memory leaks in the Linux kernel's toshiba_haps driver on x86 platforms. The toshiba_haps_add() function leaks the allocated haps object if an error occurs after allocation, and toshiba_haps_remove() fails to free the allocated object before clearing its pointer, resulting in unreachable allocated memory. The fix involves using devm_kzalloc() for memory allocation to ensure proper cleanup. This vulnerability affects linux-aws kernel versions prior to 5.15.0-1111.118~20.04.1, 5.15.0-1116.125~20.04.1, 5.15.0-1111.121~20.04.1, and 5.15.0-185.195~20.04.1. The vendor advisory from Ubuntu confirms that a patch is available and recommends updating to fixed kernel versions. The vulnerability is rated medium severity and no exploits are known in the wild.

Detailed information about UBUNTU-CVE-2026-23176 affecting null linux-aws. Get real-time updates, technical details, and mitigation strategies.

UBUNTU-CVE-2026-23176 - Live Threat Intelligence - Threat Radar | OffSeq.com

Linux aws: In the Linux kernel, the following vulnerability has been resolved: platform/x86: toshiba_haps: Fix memory leaks in add/remove routines… (CVE-2026-23176)

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