Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp
Summary
| CVE | CVE-2026-53071 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-06-24 17:17:20 UTC |
| Updated | 2026-06-30 03:20:54 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp l2cap_ecred_reconf_rsp() calls l2cap_chan_del() without holding l2cap_chan_lock(). Every other l2cap_chan_del() caller in the file acquires the lock first. A remote BLE device can send a crafted L2CAP ECRED reconfiguration response to corrupt the channel list while another thread is iterating it. Add l2cap_chan_hold() and l2cap_chan_lock() before l2cap_chan_del(), and l2cap_chan_unlock() and l2cap_chan_put() after, matching the pattern used in l2cap_ecred_conn_rsp() and l2cap_conn_del(). |
Risk And Classification
Primary CVSS: v3.1 7 HIGH from ADP
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.001460000 probability, percentile 0.042670000 (date 2026-06-30)
Problem Types: CWE-414 | CWE-414 Missing Lock Check
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | ADP | CVSS | 7 | HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Secondary | 8.8 | HIGH | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | Secondary | 7 | HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 8.8 | HIGH | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
HighPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 15f02b91056253e8cdc592888f431da0731337b8 96dca51715d86559ed6ed8028e5445cecb80f3ae git | Not specified |
| CNA | Linux | Linux | affected 15f02b91056253e8cdc592888f431da0731337b8 330b20ec97916961ee0e6c29c06bc0fa7c96e64c git | Not specified |
| CNA | Linux | Linux | affected 15f02b91056253e8cdc592888f431da0731337b8 0ccd75c51f620374086f359e906917676e699a1c git | Not specified |
| CNA | Linux | Linux | affected 15f02b91056253e8cdc592888f431da0731337b8 77a853aec710b2fdf41fa298ea3cbc9a4358f917 git | Not specified |
| CNA | Linux | Linux | affected 15f02b91056253e8cdc592888f431da0731337b8 fe1188abdae9b7a8199dcdfcf9244d5e5d61eb14 git | Not specified |
| CNA | Linux | Linux | affected 15f02b91056253e8cdc592888f431da0731337b8 dc89961b76f12aff47124c1df4bdb32a080f4d0c git | Not specified |
| CNA | Linux | Linux | affected 15f02b91056253e8cdc592888f431da0731337b8 5501d055a1ce3c747141e3955ba8cf034d193f3e git | Not specified |
| CNA | Linux | Linux | affected 15f02b91056253e8cdc592888f431da0731337b8 42776497cdbc9a665b384a6dcb85f0d4bd927eab git | Not specified |
| CNA | Linux | Linux | affected 5.7 | Not specified |
| CNA | Linux | Linux | unaffected 5.7 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.258 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.209 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.175 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.141 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.91 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.33 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0.10 7.0.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1 * original_commit_for_fix | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux 10 | Not specified | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux 8 | Not specified | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux 9 | Not specified | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux 6 | Not specified | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux 7 | Not specified | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/0ccd75c51f620374086f359e906917676e699a1c | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| access.redhat.com/security/cve/CVE-2026-53071 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | access.redhat.com | |
| git.kernel.org/stable/c/96dca51715d86559ed6ed8028e5445cecb80f3ae | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53071.json | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | security.access.redhat.com | |
| git.kernel.org/stable/c/dc89961b76f12aff47124c1df4bdb32a080f4d0c | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| bugzilla.redhat.com/show_bug.cgi | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | bugzilla.redhat.com | |
| git.kernel.org/stable/c/42776497cdbc9a665b384a6dcb85f0d4bd927eab | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/5501d055a1ce3c747141e3955ba8cf034d193f3e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/330b20ec97916961ee0e6c29c06bc0fa7c96e64c | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/77a853aec710b2fdf41fa298ea3cbc9a4358f917 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/fe1188abdae9b7a8199dcdfcf9244d5e5d61eb14 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| ADP | 2026-06-24T00:00:00.000Z | Reported to Red Hat. |
| ADP | 2026-06-24T00:00:00.000Z | Made public. |
There are currently no legacy QID mappings associated with this CVE.