CVE-2023-54314
media: af9005: Fix null-ptr-deref in af9005_i2c_xfer
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: media: af9005: Fix null-ptr-deref in af9005_i2c_xfer In af9005_i2c_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 af9005_i2c_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()")
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.23
References 8
git.kernel.org
- stable/c/98c12abb275b75a98ff62de9466d21e4daa98536
- stable/c/63d962ac7a52c0ff4cd09af2e284dce5e5955dfe
- stable/c/0c02eb70b1dd4ae9bb304ce6cdadbc6faba2b2e9
- stable/c/c7e5ac737db25d7387fe517cb5207706782b6cf8
- stable/c/033b0c0780adee32dde218179e9bc51d2525108f
- stable/c/abb6fd93e05e80668d2317fe1110bc99b05034c3
- stable/c/e595ff350b2fd600823ee8491df7df693ae4b7c5
- stable/c/f4ee84f27625ce1fdf41e8483fa0561a1b837d10