CVEvulnerability
CVE-2026-89886
- Status
- Received
- Published
- 2026-09-16
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
media: intel/ipu6: fix async notifier cleanup leak on parse error
isys_notifier_init() calls v4l2_async_nf_init() and then adds fwnode
remote subdevs in a loop with v4l2_async_nf_add_fwnode_remote(). If an
endpoint parse or add fails partway through the loop, it jumps to
err_parse and returns without calling v4l2_async_nf_cleanup(), leaking
every v4l2_async_connection already added to the notifier's waiting
list.
The register-failure path just below already cleans up correctly, and
the caller only tears the notifier down (isys_notifier_cleanup()) once
isys_notifier_init() has returned success. Clean up the notifier on the
parse error path too.
References
- https://git.kernel.org/stable/c/27b7997be552ee37b3e01beacfeb4131f1bebb5f git.kernel.org
- https://git.kernel.org/stable/c/abb1f808ceab5a3275f8a6b4e37cff17f9f781c1 git.kernel.org
- https://git.kernel.org/stable/c/dd5943aedbe4d7eb46158cb35078257733ac48b6 git.kernel.org
- https://git.kernel.org/stable/c/eee6069e4e9511e814a33a75e403f7e863f70394 git.kernel.org