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Review reviewHigh

CVE-2025-38118

Linux Linux, linux kernel, debian linux

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix UAF on mgmt_remove_adv_monitor_complete This reworks MGMT_OP_REMOVE_ADV_MONITOR to not use mgmt_pending_add to avoid crashes like bellow: ================================================================== BUG: KASAN: slab-use-after-free in mgmt_remove_adv_monitor_complete+0xe5/0x540 net/bluetooth/mgmt.c:5406 Read of size 8 at addr ffff88801c53f318 by task kworker/u5:5/5341 CPU: 0 UID: 0 PID: 5341 Comm: kworker/u5:5 Not tainted 6.15.0-syzkaller-10402-g4cb6c8af8591 #0 PREEMPT(full) Hardware name: QEMU Sta...

CVSS
7.8
EPSS
0.16%
5.98% percentile
CISA KEV
Not listed
Published
2025.07.03
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.16%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix UAF on mgmt_remove_adv_monitor_complete This reworks MGMT_OP_REMOVE_ADV_MONITOR to not use mgmt_pending_add to avoid crashes like bellow: ================================================================== BUG: KASAN: slab-use-after-free in mgmt_remove_adv_monitor_complete+0xe5/0x540 net/bluetooth/mgmt.c:5406 Read of size 8 at addr ffff88801c53f318 by task kworker/u5:5/5341 CPU: 0 UID: 0 PID: 5341 Comm: kworker/u5:5 Not tainted 6.15.0-syzkaller-10402-g4cb6c8af8591 #0 PREEMPT(full) Hardware name: QEMU Sta...

Affected product and versions

Product
Linux Linux, linux kernel, debian linux
Affected versions
>= 66bd095ab5d408af106808cce302406542f70f65 < 3c9aba9cbdf163e2654be9f82d43ff8a04273962, >= 66bd095ab5d408af106808cce302406542f70f65 < 9f66b6531c2b4e996bb61720ee94adb4b2e8d1be, >= 66bd095ab5d408af106808cce302406542f70f65 < 9df3e5e7f7e4653fd9802878cedc36defc5ef42d, >= 66bd095ab5d408af106808cce302406542f70f65 < 32aa2fbe319f33b0318ec6f4fceb63879771a286, >= 66bd095ab5d408af106808cce302406542f70f65 < e6ed54e86aae9e4f7286ce8d5c73780f91b48d1c, >= 5.12, >= 5.12 < 6.1.142, >= 6.2 < 6.6.94, >= 6.7 < 6.12.34, >= 6.13 < 6.15.3, 6.16, 11.0
Fixed versions
6.1.142, 6.6.94, 6.12.34, 6.15.3

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel, debian linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-416
CVE-2025-38118 — Linux Linux, linux kernel, debian linux | SECUFOCUS NOW