CVE-2024-39464: media: v4l: async: Fix notifier list entry init
First published: Tue Jun 25 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: media: v4l: async: Fix notifier list entry init struct v4l2_async_notifier has several list_head members, but only waiting_list and done_list are initialized. notifier_entry was kept 'zeroed' leading to an uninitialized list_head. This results in a NULL-pointer dereference if csi2_async_register() fails, e.g. node for remote endpoint is disabled, and returns -ENOTCONN. The following calls to v4l2_async_nf_unregister() results in a NULL pointer dereference. Add the missing list head initializer.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=6.6<6.6.34 | |
| Linux Linux kernel | >=6.7<6.9.5 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
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Reference Links
- https://git.kernel.org/stable/c/44f6d619c30f0c65fcdd2b6eba70fdb4460d87ad
- https://git.kernel.org/stable/c/6d8acd02c4c6a8f917eefac1de2e035521ca119d
- https://git.kernel.org/stable/c/a80d1da923f671c1e6a14e8417cd2f117b27a442
- https://git.kernel.org/linus/6d8acd02c4c6a8f917eefac1de2e035521ca119d
- https://security-tracker.debian.org/tracker/CVE-2024-39464
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-39464
- https://nvd.nist.gov/vuln/detail/CVE-2024-39464
- https://launchpad.net/bugs/cve/CVE-2024-39464
- https://ubuntu.com/security/CVE-2024-39464
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