CVE-2026-23151

Summary

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: MGMT: Fix memory leak in set_ssp_complete

Fix memory leak in set_ssp_complete() where mgmt_pending_cmd structures are not freed after being removed from the pending list.

Commit 302a1f674c00 ("Bluetooth: MGMT: Fix possible UAFs") replaced mgmt_pending_foreach() calls with individual command handling but missed adding mgmt_pending_free() calls in both error and success paths of set_ssp_complete(). Other completion functions like set_le_complete() were fixed correctly in the same commit.

This causes a memory leak of the mgmt_pending_cmd structure and its associated parameter data for each SSP command that completes.

Add the missing mgmt_pending_free(cmd) calls in both code paths to fix the memory leak. Also fix the same issue in set_advertising_complete().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux0b60eb04b8524e1b4b3f07fea0d16fda9a677d9a < d7e42dc47beb48851bc0008c1e1b79126de9d975affected
LinuxLinuxd71b98f253b079cbadc83266383f26fe7e9e103b < 1850a558d116d7e3e2ef36d06a56f59b640cc214affected
LinuxLinux302a1f674c00dd5581ab8e493ef44767c5101aab < 3b6318505378828ee415d6ef678db6a74c077504affected
LinuxLinux302a1f674c00dd5581ab8e493ef44767c5101aab < 1b9c17fd0a7fdcbe69ec5d6fe8e50bc5ed7f01f2affected
LinuxLinux87a1f16f07c6c43771754075e08f45b41d237421affected
LinuxLinux6.12.59 < 6.12.69affected
LinuxLinux6.16.10 < 6.17affected
LinuxLinux6.17affected
LinuxLinux0 < 6.17unaffected
LinuxLinux6.12.69 <= 6.12.*unaffected
LinuxLinux6.18.9 <= 6.18.*unaffected
LinuxLinux6.19 <= *unaffected

Weaknesses

References