Bug 2439926 (CVE-2026-23151) - CVE-2026-23151 kernel: Linux kernel: Memory leak in Bluetooth MGMT can lead to denial of service
Summary: CVE-2026-23151 kernel: Linux kernel: Memory leak in Bluetooth MGMT can lead t...
Keywords:
Status: NEW
Alias: CVE-2026-23151
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-14 17:03 UTC by OSIDB Bzimport
Modified: 2026-02-20 00:28 UTC (History)
0 users

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Description OSIDB Bzimport 2026-02-14 17:03:24 UTC
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().


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