CVE-2024-21803: Possible UAF in bt_accept_poll in Linux kernel

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-01-30 · updated 2026-06-17
Weakness: CWE-416

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 products

Linux kernel: from 2.6.12.1 through 6.6.8; 2.6.12-rc2, 2.6.12-rc3, 2.6.12-rc4, 2.6.12-rc5, 2.6.12-rc6, 6.7-rc1 (+5)

References

https://bugzilla.openanolis.cn/show_bug.cgi?id=8081
https://bugzilla.openanolis.cn/show_bug.cgi?id=8081

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