What’s Vulnerable › Vulnerabilities

CVE-2023-1989: Kernel: use after free bug in btsdio_remove due to race condition

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-04-11 · updated 2026-10-01
• Weakness: CWE-416

Description

A use-after-free flaw was found in btsdio_remove in drivers\bluetooth\btsdio.c in the Linux Kernel. A call to btsdio_remove with an unfinished job may cause a race problem which leads to a UAF on hdev devices.

Affected products

• Debian Linux: 10.0, 12.0
• Linux kernel: from 2.6.24 before 4.14.312; from 4.15 before 4.19.280; from 4.20 before 5.4.240; from 5.5 before 5.10.177; from 5.11 before 5.15.105; from 5.16 before 6.1.22 — fixed in 4.14.312, 4.19.280, 5.10.177, 5.15.105, 5.4.240, 6.1.22
• NetApp H300S: all versions
• NetApp H410C: all versions
• NetApp H410S: all versions
• NetApp H500S: all versions
• NetApp H700S: all versions

How to fix

Upgrade to a fixed version: Linux kernel 4.14.312, 4.19.280, 5.10.177, 5.15.105. Check the vendor advisory for mitigations.

References

• https://access.redhat.com/errata/RHSA-2023:6583
• https://access.redhat.com/errata/RHSA-2023:6901
• https://access.redhat.com/errata/RHSA-2023:7077
• https://access.redhat.com/errata/RHSA-2024:0724
• https://access.redhat.com/errata/RHSA-2024:4740
• https://access.redhat.com/security/cve/CVE-2023-1989
• https://bugzilla.redhat.com/show_bug.cgi?id=2185945
• https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=f132c2d13088
• https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=f132c2d13088
• https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
• https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
• https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html

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