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CVE-2026-43059

· Published 05/05/2026 16:16 · Modified 05/05/2026 16:16

Labels: CVE-2026-43059 2026-05-05416baaa9-dc9f-4396-8d5f-8c081fb06d67CVE-2026-43059

Essential information

Published
05/05/2026 16:16
Modified
05/05/2026 16:16
Author
Creator
CISA KEV
No
CWE

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix list corruption and UAF in command complete handlers Commit 302a1f674c00 ("Bluetooth: MGMT: Fix possible UAFs") introduced mgmt_pending_valid(), which not only validates the pending command but also unlinks it from the pending list if it is valid. This change in semantics requires updates to several completion handlers to avoid list corruption and memory safety issues. This patch addresses two left-over issues from the aforementioned rework: 1. In mgmt_add_adv_patterns_monitor_complete(), mgmt_pending_remove() is replaced with mgmt_pending_free() in the success path. Since mgmt_pending_valid() already unlinks the command at the beginning of the function, calling mgmt_pending_remove() leads to a double list_del() and subsequent list corruption/kernel panic. 2. In set_mesh_complete(), the use of mgmt_pending_foreach() in the error path is removed. Since the current command is already unlinked by mgmt_pending_valid(), this foreach loop would incorrectly target other pending mesh commands, potentially freeing them while they are still being processed concurrently (leading to UAFs). The redundant mgmt_cmd_status() is also simplified to use cmd->opcode directly.

NVD status

Status
Received — CVE has been recently published to the CVE List and has been received by the NVD.
Source
416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD
View on NVD

Affected products (CPE)

ProductCPE
linux / linux kernel cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*
bluetooth / bluetooth cpe:2.3:a:bluetooth:bluetooth:*:*:*:*:*:*:*:*

References