CVE-2023-52915 (GCVE-0-2023-52915)

Vulnerability from cvelistv5 – Published: 2024-09-06 09:07 – Updated: 2026-01-05 10:17
VLAI?
Title
media: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035_i2c_master_xfer
Summary
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()")
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 , < b2f54ed7739dfdf42c4df0a11131aad7c8635464 (git)
Affected: 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 , < fa58d9db5cad4bb7bb694b6837e3b96d87554f2b (git)
Affected: 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 , < b49c6e5dd236787f13a062ec528d724169f11152 (git)
Affected: 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 , < 6c01ef65de0b321b2db1ef9abf8f1d15862b937e (git)
Affected: 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 , < d9ef84a7c222497ecb5fdf93361c76931804825e (git)
Affected: 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 , < 0143f282b15f7cedc0392ea10050fb6000fd16e6 (git)
Affected: 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 , < 41b7181a40af84448a2b144fb02d8bf32b7e9a23 (git)
Affected: 7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273 , < 7bf744f2de0a848fb1d717f5831b03db96feae89 (git)
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    Linux Linux Affected: 3.5
Unaffected: 0 , < 3.5 (semver)
Unaffected: 4.14.326 , ≤ 4.14.* (semver)
Unaffected: 4.19.295 , ≤ 4.19.* (semver)
Unaffected: 5.4.257 , ≤ 5.4.* (semver)
Unaffected: 5.10.197 , ≤ 5.10.* (semver)
Unaffected: 5.15.133 , ≤ 5.15.* (semver)
Unaffected: 6.1.55 , ≤ 6.1.* (semver)
Unaffected: 6.5.5 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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