CVE-2023-53146
media: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer()
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer() In dw2102_i2c_transfer, 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 dw2102_i2c_transfer. 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 950e252cb469 ("[media] dw2102: limit messages to buffer size")
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.27
References 8
git.kernel.org
- stable/c/77cbd42d29de9ffc93d5529bab8813cde53af14c
- stable/c/ecbe6d011b95c7da59f014f8d26cb7245ed1e11e
- stable/c/beb9550494e7349f92b9eaa283256a5ad9b1c9be
- stable/c/97fdbdb750342cbc204befde976872fedb406ee6
- stable/c/903566208ae6bb9c0e7e54355ce75bf6cf72485d
- stable/c/08dfcbd03b2b7f918c4f87c6ff637054e510df74
- stable/c/fb28afab113a82b89ffec48c8155ec05b4f8cb5e
- stable/c/5ae544d94abc8ff77b1b9bf8774def3fa5689b5b