Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: media: az6007: Fix null-ptr-deref in az6007_i2c_xfer() In az6007_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 az6007_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()")
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected caa1a700ed2a06a831e6a7db5d9f213fc63caee3 before c6763fefa267f6e62595a6ac1f57815d99fc90b7; affected caa1a700ed2a06a831e6a7db5d9f213fc63caee3 before adcb73f8ce9aec48b1f85223f401c1574015d8d2; affected caa1a700ed2a06a831e6a7db5d9f213fc63caee3 before 991c77fe18c6f374bbf83376f8c42550aa565662; affected caa1a700ed2a06a831e6a7db5d9f213fc63caee3 before a9def3e9718a4dc756f48db147d42ec41a966240; affected caa1a700ed2a06a831e6a7db5d9f213fc63caee3 before 5b1ea100ad3695025969dc4693f307877fb688d6; affected caa1a700ed2a06a831e6a7db5d9f213fc63caee3 before 6ab7ea4e17d6a605d05308adf8f3408924770cba; affected caa1a700ed2a06a831e6a7db5d9f213fc63caee3 before a1110f19d4940e4185251d072cbb0ff51486a1e7; affected caa1a700ed2a06a831e6a7db5d9f213fc63caee3 before 1047f9343011f2cedc73c64829686206a7e9fc3f |
| Linux / Linux | affected 3.4; unaffected 0 before 3.4; unaffected 4.14.326 through 4.14.*; unaffected 4.19.295 through 4.19.*; unaffected 5.4.257 through 5.4.*; unaffected 5.10.197 through 5.10.*; unaffected 5.15.133 through 5.15.*; unaffected 6.1.55 through 6.1.*; unaffected 6.5.5 through 6.5.*; unaffected 6.6 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/c6763fefa267f6e62595a6ac1f57815d99fc90b7
- https://git.kernel.org/stable/c/adcb73f8ce9aec48b1f85223f401c1574015d8d2
- https://git.kernel.org/stable/c/991c77fe18c6f374bbf83376f8c42550aa565662
- https://git.kernel.org/stable/c/a9def3e9718a4dc756f48db147d42ec41a966240
- https://git.kernel.org/stable/c/5b1ea100ad3695025969dc4693f307877fb688d6
- https://git.kernel.org/stable/c/6ab7ea4e17d6a605d05308adf8f3408924770cba
- https://git.kernel.org/stable/c/a1110f19d4940e4185251d072cbb0ff51486a1e7
- https://git.kernel.org/stable/c/1047f9343011f2cedc73c64829686206a7e9fc3f
ADP enrichment
No English description supplied.
No references supplied.