CVE-2025-38694

media: dvb-frontends: dib7090p: fix null-ptr-deref in dib7090p_rw_on_apb()

State: Published
Severity: Not scored
Published: Sep 4, 2025
Updated: May 12, 2026
Reserved: Apr 16, 2025

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()")

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	713d54a8bd812229410a1902cd9b332a2a27af9f to before bc07cae4f36bb18d5b6a9ed835c1278ca44ec82eAffected 713d54a8bd812229410a1902cd9b332a2a27af9f to before ce8b7c711b9c4f040b5419729d0972db8e374324Affected 713d54a8bd812229410a1902cd9b332a2a27af9f to before 529fd5593b721e6f4370c591f5086649ed149ff6Affected 713d54a8bd812229410a1902cd9b332a2a27af9f to before c33280d6bd668dbdc5a5f07887cc63a52ab4789cAffected 713d54a8bd812229410a1902cd9b332a2a27af9f to before 09906650484a09b3a4d4b3d3065395856810becdAffected 713d54a8bd812229410a1902cd9b332a2a27af9f to before 0bb32863426afe0badac25c28d59021f211d0f48Affected 713d54a8bd812229410a1902cd9b332a2a27af9f to before a0f744d6cdde81d7382e183f77a4080a39b206cdAffected 713d54a8bd812229410a1902cd9b332a2a27af9f to before 19eb5d8e6aa1169d368a4d69aae5572950deb89dAffected 713d54a8bd812229410a1902cd9b332a2a27af9f to before ce5cac69b2edac3e3246fee03e8f4c2a1075238bAffected
LinuxLinux	2.6.39Affected before 2.6.39Not affected 5.4.297 through 5.4.Not affected 5.10.241 through 5.10.Not affected 5.15.190 through 5.15.Not affected 6.1.149 through 6.1.Not affected 6.6.103 through 6.6.Not affected 6.12.43 through 6.12.Not affected 6.15.11 through 6.15.Not affected 6.16.2 through 6.16.Not affected 6.17 and laterNot affected

Product

Versions

LinuxLinux

713d54a8bd812229410a1902cd9b332a2a27af9f to before bc07cae4f36bb18d5b6a9ed835c1278ca44ec82eAffected
713d54a8bd812229410a1902cd9b332a2a27af9f to before ce8b7c711b9c4f040b5419729d0972db8e374324Affected
713d54a8bd812229410a1902cd9b332a2a27af9f to before 529fd5593b721e6f4370c591f5086649ed149ff6Affected
713d54a8bd812229410a1902cd9b332a2a27af9f to before c33280d6bd668dbdc5a5f07887cc63a52ab4789cAffected
713d54a8bd812229410a1902cd9b332a2a27af9f to before 09906650484a09b3a4d4b3d3065395856810becdAffected
713d54a8bd812229410a1902cd9b332a2a27af9f to before 0bb32863426afe0badac25c28d59021f211d0f48Affected
713d54a8bd812229410a1902cd9b332a2a27af9f to before a0f744d6cdde81d7382e183f77a4080a39b206cdAffected
713d54a8bd812229410a1902cd9b332a2a27af9f to before 19eb5d8e6aa1169d368a4d69aae5572950deb89dAffected
713d54a8bd812229410a1902cd9b332a2a27af9f to before ce5cac69b2edac3e3246fee03e8f4c2a1075238bAffected

LinuxLinux

2.6.39Affected
before 2.6.39Not affected
5.4.297 through 5.4.*Not affected
5.10.241 through 5.10.*Not affected
5.15.190 through 5.15.*Not affected
6.1.149 through 6.1.*Not affected
6.6.103 through 6.6.*Not affected
6.12.43 through 6.12.*Not affected
6.15.11 through 6.15.*Not affected
6.16.2 through 6.16.*Not affected
6.17 and laterNot affected

References

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