CVE-2024-21803

Possible UAF in bt_accept_poll in Linux kernel

HIGH
7.8
CVSS Score
Published: January 30, 2024 at 07:15 AM UTC
Updated: June 17, 2026 at 07:10 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

Use After Free vulnerability in Linux Linux kernel kernel on Linux, x86, ARM (bluetooth modules) allows Local Execution of Code. This vulnerability is associated with program files https://gitee.Com/anolis/cloud-kernel/blob/devel-5.10/net/bluetooth/af_bluetooth.C. This issue affects Linux kernel: from v2.6.12-rc2 before v6.8-rc1.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.6.12.1 ≤ v ≤ 6.6.8v2.6.12-rc2 ≤ v < v6.8-rc12.6.12 rc22.6.12 rc32.6.12 rc42.6.12 rc52.6.12 rc62.6.12-rc26.7 rc16.7 rc26.7 rc36.7 rc46.7 rc56.7 rc6
Affected range stops below v6.8-rc1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-416

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