CVE-2024-56590

Bluetooth: hci_core: Fix not checking skb length on hci_acldata_packet

MEDIUM

5.5

CVSS Score

Published: December 27, 2024 at 02:50 PM UTC

Updated: August 5, 2026 at 12:05 PM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.3%

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_core: Fix not checking skb length on hci_acldata_packet This fixes not checking if skb really contains an ACL header otherwise the code may attempt to access some uninitilized/invalid memory past the valid skb->data.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v < 5.15.1742.6.12 ≤ v < 5.15.1742.6.12 ≤ v < 6.1.1202.6.12 ≤ v < 6.12.52.6.12 ≤ v < 6.132.6.12 ≤ v < 6.6.665.16 ≤ v < 6.1.1206.2 ≤ v < 6.6.666.7 ≤ v < 6.12.51da177e4c3f41524e886b7f1b8a0c1fc7321cac2 2.6.12

Vendor states this is fixed in 219960a48771b35a3857a491b955c31d6c33d581 (fixed)

Vendor states this is fixed in 3fe288a8214e7dd784d1f9b7c9e448244d316b47 (fixed)

Vendor states this is fixed in 559b1c7ac2e212a23b3833d3baf3bd957771d02e (fixed)

Vendor states this is fixed in 5e50d12cc6e95e1fde08f5db6992b616f714b0fb (fixed)

Vendor states this is fixed in 93a6160dc198ffe5786da8bd8588cfd17f53b29a (fixed)

Vendor states this is fixed in 2.6.12 (unaffected)

Vendor states this is fixed in 5.15.174 (unaffected)

Vendor states this is fixed in 6.1.120 (unaffected)

Vendor states this is fixed in 6.12.5 (unaffected)

Vendor states this is fixed in 6.13 (unaffected)

Vendor states this is fixed in 6.6.66 (unaffected)