CVE-2025-38694
Description
In the Linux kernel, the following vulnerability has been resolved: media: dvb-frontends: dib7090p: fix null-ptr-deref in dib7090p_rw_on_apb() In dib7090p_rw_on_apb, msg is controlled by user. When msg[0].buf is null and msg[0].len is zero, former checks on msg[0].buf would be passed. If accessing msg[0].buf[2] without sanity check, null pointer deref would happen. We add check on msg[0].len to prevent crash. Similar issue occurs when access msg[1].buf[0] and msg[1].buf[1]. Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 6.1.153-1 |
| debian | bullseye | fixed | 5.10.244-1 |
| debian | forky | fixed | 6.16.3-1 |
| debian | sid | fixed | 6.16.3-1 |
| debian | trixie | fixed | 6.12.43-1 |
| linux-kernel | affected | 5.4.297 | |
| debian | 11.0 | affected | |
References
- https://git.kernel.org/stable/c/09906650484a09b3a4d4b3d3065395856810becd
- https://git.kernel.org/stable/c/0bb32863426afe0badac25c28d59021f211d0f48
- https://git.kernel.org/stable/c/19eb5d8e6aa1169d368a4d69aae5572950deb89d
- https://git.kernel.org/stable/c/529fd5593b721e6f4370c591f5086649ed149ff6
- https://git.kernel.org/stable/c/a0f744d6cdde81d7382e183f77a4080a39b206cd
- https://git.kernel.org/stable/c/bc07cae4f36bb18d5b6a9ed835c1278ca44ec82e
- https://git.kernel.org/stable/c/c33280d6bd668dbdc5a5f07887cc63a52ab4789c
- https://git.kernel.org/stable/c/ce5cac69b2edac3e3246fee03e8f4c2a1075238b
- https://git.kernel.org/stable/c/ce8b7c711b9c4f040b5419729d0972db8e374324
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
- https://www.suse.com/security/cve/CVE-2025-38694.html
- https://security-tracker.debian.org/tracker/CVE-2025-38694
CWEs
CWE-476
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.