Memory leak in Linux kernel - CVE-2024-26887

Vulnerability identifier: #VU90001

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-26887

CWE-ID: CWE-401

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the btusb_recv_acl_mtk() function in drivers/bluetooth/btusb.c, within the btmtk_process_coredump() function in drivers/bluetooth/btmtk.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
Ubuntu
linux-image-kvm (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-virtual-hwe-24.04 (Ubuntu package)
linux-image-generic-lpae (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-generic-64k (Ubuntu package)
linux-image-generic-64k-hwe-24.04 (Ubuntu package)
linux-image-generic-hwe-24.04 (Ubuntu package)
linux-image-lowlatency-64k (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-6.8.0-35-lowlatency-64k (Ubuntu package)
linux-image-6.8.0-35-lowlatency (Ubuntu package)
linux-image-6.8.0-35-generic-64k (Ubuntu package)
linux-image-6.8.0-35-generic (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-6.8.0-1004-gke (Ubuntu package)
linux-image-6.8.0-1005-raspi (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-6.8.0-1006-oracle (Ubuntu package)
linux-image-6.8.0-1006-oracle-64k (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-oracle-64k (Ubuntu package)
linux-image-6.8.0-1006-oem (Ubuntu package)
linux-image-ibm-lts-24.04 (Ubuntu package)
linux-image-ibm-classic (Ubuntu package)
linux-image-ibm (Ubuntu package)
linux-image-6.8.0-1006-ibm (Ubuntu package)
linux-image-oem-24.04a (Ubuntu package)
linux-image-oem-24.04 (Ubuntu package)
linux-image-6.8.0-1008-azure (Ubuntu package)
linux-image-6.8.0-1008-azure-fde (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-azure-fde (Ubuntu package)

Install update from vendor's website.

Linux kernel - addressed in versions 6.6.23, 6.7.11, 6.8.2
linux-image-kvm (Ubuntu package) - update to 6.8.0-35.35
linux-image-virtual (Ubuntu package) - update to 6.8.0-35.35
linux-image-virtual-hwe-24.04 (Ubuntu package) - update to 6.8.0-35.35
linux-image-generic-lpae (Ubuntu package) - update to 6.8.0-35.35
linux-image-generic (Ubuntu package) - update to 6.8.0-35.35
linux-image-generic-64k (Ubuntu package) - update to 6.8.0-35.35
linux-image-generic-64k-hwe-24.04 (Ubuntu package) - update to 6.8.0-35.35
linux-image-generic-hwe-24.04 (Ubuntu package) - update to 6.8.0-35.35
linux-image-lowlatency-64k (Ubuntu package) - update to 6.8.0-35.35.1
linux-image-lowlatency (Ubuntu package) - update to 6.8.0-35.35.1
linux-image-6.8.0-35-lowlatency-64k (Ubuntu package) - update to 6.8.0-35.35.1
linux-image-6.8.0-35-lowlatency (Ubuntu package) - update to 6.8.0-35.35.1
linux-image-6.8.0-35-generic-64k (Ubuntu package) - update to 6.8.0-35.35+1
linux-image-6.8.0-35-generic (Ubuntu package) - update to 6.8.0-35.35+1
linux-image-gke (Ubuntu package) - update to 6.8.0-1004.7
linux-image-6.8.0-1004-gke (Ubuntu package) - update to 6.8.0-1004.7
linux-image-6.8.0-1005-raspi (Ubuntu package) - update to 6.8.0-1005.5
linux-image-raspi (Ubuntu package) - update to 6.8.0-1005.5
linux-image-6.8.0-1006-oracle (Ubuntu package) - update to 6.8.0-1006.6
linux-image-6.8.0-1006-oracle-64k (Ubuntu package) - update to 6.8.0-1006.6
linux-image-oracle (Ubuntu package) - update to 6.8.0-1006.6
linux-image-oracle-64k (Ubuntu package) - update to 6.8.0-1006.6
linux-image-6.8.0-1006-oem (Ubuntu package) - update to 6.8.0-1006.6
linux-image-ibm-lts-24.04 (Ubuntu package) - update to 6.8.0-1006.6
linux-image-ibm-classic (Ubuntu package) - update to 6.8.0-1006.6
linux-image-ibm (Ubuntu package) - update to 6.8.0-1006.6
linux-image-6.8.0-1006-ibm (Ubuntu package) - update to 6.8.0-1006.6
linux-image-oem-24.04a (Ubuntu package) - update to 6.8.0-1006.6+1
linux-image-oem-24.04 (Ubuntu package) - update to 6.8.0-1006.6+1
linux-image-6.8.0-1008-azure (Ubuntu package) - update to 6.8.0-1008.8
linux-image-6.8.0-1008-azure-fde (Ubuntu package) - update to 6.8.0-1008.8
linux-image-azure (Ubuntu package) - update to 6.8.0-1008.8
linux-image-azure-fde (Ubuntu package) - update to 6.8.0-1008.8

• https://git.kernel.org/stable/c/620b9e60e4b55fa55540ce852a0f3c9e6091dbbc
• https://git.kernel.org/stable/c/b10e6f6b160a60b98fb7476028f5a95405bbd725
• https://git.kernel.org/stable/c/b08bd8f02a24e2b82fece5ac51dc1c3d9aa6c404
• https://git.kernel.org/stable/c/79f4127a502c5905f04da1f20a7bbe07103fb77c
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.23
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.11
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.2

• Memory leak in Linux kernel bluetooth driver
• Ubuntu update for linux
• Ubuntu update for linux-oem-6.8
• Ubuntu update for linux-azure
• Ubuntu update for linux-oracle