CVE-2023-53220
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-53220
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53220.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-53220
- Downstream
- Published
- 2025-09-15T15:15:48Z
- Modified
- 2025-09-15T20:01:26Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
media: az6007: Fix null-ptr-deref in az6007i2cxfer()
In az6007i2cxfer, 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 az6007i2cxfer. 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 az6027i2cxfer()")
- References
-
- https://git.kernel.org/stable/c/1047f9343011f2cedc73c64829686206a7e9fc3f
- https://git.kernel.org/stable/c/5b1ea100ad3695025969dc4693f307877fb688d6
- https://git.kernel.org/stable/c/6ab7ea4e17d6a605d05308adf8f3408924770cba
- https://git.kernel.org/stable/c/991c77fe18c6f374bbf83376f8c42550aa565662
- https://git.kernel.org/stable/c/a1110f19d4940e4185251d072cbb0ff51486a1e7
- https://git.kernel.org/stable/c/a9def3e9718a4dc756f48db147d42ec41a966240
- https://git.kernel.org/stable/c/adcb73f8ce9aec48b1f85223f401c1574015d8d2
- https://git.kernel.org/stable/c/c6763fefa267f6e62595a6ac1f57815d99fc90b7