CVE-2024-50077: Linux kernel · Bluetooth: ISO: Fix multiple init when debugfs is disabled
Source GCVE Database
Not known to be exploited · CVSS 5.5 Medium.
Data as of 29 Oct 2026, 23:31 UTC
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 29 Oct 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
AI-suggested
A fix for this vulnerability is available in the Linux kernel. Users should update to a kernel version that includes this patch. Since no vendor advisory or fixed versions are explicitly provided, check the Linux kernel changelogs or vendor updates for the patched kernel version. Until patched, avoid disabling debugfs if possible or restrict untrusted local access to prevent triggering the issue.
Description
CVE-2024-50077 is a vulnerability in the Linux kernel's Bluetooth ISO subsystem where an improper initialization sequence occurs if debugfs is disabled. This leads to duplicate initialization calls causing a kernel BUG and system crash. The issue arises because iso_init() returns early without setting a flag, allowing repeated initialization attempts that trigger a double list addition error and kernel panic.
References
- nvd.nist.gov/vuln/detail/CVE-2024-50077 (opens in a new tab)
- git.kernel.org/stable/c/8fb8e912afb4c47dec12ea9a5853e7a8db95816f (opens in a new tab)
- git.kernel.org/stable/c/a9b7b535ba192c6b77e6c15a4c82d853163eab8c (opens in a new tab)
- git.kernel.org/stable/c/adf1b179c2ff8073c24bf87e5a605fcc5a09798b (opens in a new tab)
- git.kernel.org/stable/c/fa4b832c5a6ec35023a1b997cf658c436619c752 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/01/msg00001.html (opens in a new tab)