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()")
from af4e067e1dcf926d9523dff11e46c45fd9fa9da2 before 98c12abb275b75a98ff62de9466d21e4daa98536; from af4e067e1dcf926d9523dff11e46c45fd9fa9da2 before 63d962ac7a52c0ff4cd09af2e284dce5e5955dfe; from af4e067e1dcf926d9523dff11e46c45fd9fa9da2 before 0c02eb70b1dd4ae9bb304ce6cdadbc6faba2b2e9; from af4e067e1dcf926d9523dff11e46c45fd9fa9da2 before c7e5ac737db25d7387fe517cb5207706782b6cf8; from af4e067e1dcf926d9523dff11e46c45fd9fa9da2 before 033b0c0780adee32dde218179e9bc51d2525108f; from af4e067e1dcf926d9523dff11e46c45fd9fa9da2 before abb6fd93e05e80668d2317fe1110bc99b05034c3; from af4e067e1dcf926d9523dff11e46c45fd9fa9da2 before e595ff350b2fd600823ee8491df7df693ae4b7c5; from af4e067e1dcf926d9523dff11e46c45fd9fa9da2 before f4ee84f27625ce1fdf41e8483fa0561a1b837d10
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.
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