CVE-2023-52915

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

State: Published
Severity: Not scored
Published: Sep 6, 2024
Updated: May 11, 2026
Reserved: Aug 21, 2024

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()")

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to before b2f54ed7739dfdf42c4df0a11131aad7c8635464Affected 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to before fa58d9db5cad4bb7bb694b6837e3b96d87554f2bAffected 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to before b49c6e5dd236787f13a062ec528d724169f11152Affected 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to before 6c01ef65de0b321b2db1ef9abf8f1d15862b937eAffected 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to before d9ef84a7c222497ecb5fdf93361c76931804825eAffected 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to before 0143f282b15f7cedc0392ea10050fb6000fd16e6Affected 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to before 41b7181a40af84448a2b144fb02d8bf32b7e9a23Affected 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to before 7bf744f2de0a848fb1d717f5831b03db96feae89Affected
LinuxLinux	3.5Affected before 3.5Not affected 4.14.326 through 4.14.Not affected 4.19.295 through 4.19.Not affected 5.4.257 through 5.4.Not affected 5.10.197 through 5.10.Not affected 5.15.133 through 5.15.Not affected 6.1.55 through 6.1.Not affected 6.5.5 through 6.5.*Not affected 6.6 and laterNot affected

Product

Versions

LinuxLinux

7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to before b2f54ed7739dfdf42c4df0a11131aad7c8635464Affected
7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to before fa58d9db5cad4bb7bb694b6837e3b96d87554f2bAffected
7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to before b49c6e5dd236787f13a062ec528d724169f11152Affected
7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to before 6c01ef65de0b321b2db1ef9abf8f1d15862b937eAffected
7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to before d9ef84a7c222497ecb5fdf93361c76931804825eAffected
7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to before 0143f282b15f7cedc0392ea10050fb6000fd16e6Affected
7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to before 41b7181a40af84448a2b144fb02d8bf32b7e9a23Affected
7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 to before 7bf744f2de0a848fb1d717f5831b03db96feae89Affected

LinuxLinux

3.5Affected
before 3.5Not affected
4.14.326 through 4.14.*Not affected
4.19.295 through 4.19.*Not affected
5.4.257 through 5.4.*Not affected
5.10.197 through 5.10.*Not affected
5.15.133 through 5.15.*Not affected
6.1.55 through 6.1.*Not affected
6.5.5 through 6.5.*Not affected
6.6 and laterNot affected

References

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