CVE-2023-52915

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

media: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035_i2c_master_xfer

In af9035_i2c_master_xfer, msg is controlled by user. When msg[i].buf is null and msg[i].len is zero, former checks on msg[i].buf would be passed. Malicious data finally reach af9035_i2c_master_xfer. If accessing msg[i].buf[0] without sanity check, null ptr deref would happen. We add check on msg[i].len to prevent crash.

Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

VendorProductVersions
LinuxLinux>= 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273, < b2f54ed7739dfdf42c4df0a11131aad7c8635464; >= 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273, < fa58d9db5cad4bb7bb694b6837e3b96d87554f2b; >= 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273, < b49c6e5dd236787f13a062ec528d724169f11152; >= 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273, < 6c01ef65de0b321b2db1ef9abf8f1d15862b937e; >= 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273, < d9ef84a7c222497ecb5fdf93361c76931804825e; >= 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273, < 0143f282b15f7cedc0392ea10050fb6000fd16e6; >= 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273, < 41b7181a40af84448a2b144fb02d8bf32b7e9a23; >= 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273, < 7bf744f2de0a848fb1d717f5831b03db96feae89
LinuxLinux3.5

References

Timeline

Published
Sep 6, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

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