CVE-2023-54314
Unknown
Description
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()")
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedDec 30, 2025
First seenDec 30, 2025
How to fix
Update
- Linux Linux98c12abb275b75a98ff62de9466d21e4daa98536, 63d962ac7a52c0ff4cd09af2e284dce5e5955dfe, 0c02eb70b1dd4ae9bb304ce6cdadbc6faba2b2e9, c7e5ac737db25d7387fe517cb5207706782b6cf8, 033b0c0780adee32dde218179e9bc51d2525108f, abb6fd93e05e80668d2317fe1110bc99b05034c3, e595ff350b2fd600823ee8491df7df693ae4b7c5, f4ee84f27625ce1fdf41e8483fa0561a1b837d10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | af4e067e1dcf926d9523dff11e46c45fd9fa9da2 ≤ v < 98c12abb275b75a98ff62de9466d21e4daa98536, af4e067e1dcf926d9523dff11e46c45fd9fa9da2 ≤ v < 63d962ac7a52c0ff4cd09af2e284dce5e5955dfe, af4e067e1dcf926d9523dff11e46c45fd9fa9da2 ≤ v < 0c02eb70b1dd4ae9bb304ce6cdadbc6faba2b2e9, af4e067e1dcf926d9523dff11e46c45fd9fa9da2 ≤ v < c7e5ac737db25d7387fe517cb5207706782b6cf8, af4e067e1dcf926d9523dff11e46c45fd9fa9da2 ≤ v < 033b0c0780adee32dde218179e9bc51d2525108f, af4e067e1dcf926d9523dff11e46c45fd9fa9da2 ≤ v < abb6fd93e05e80668d2317fe1110bc99b05034c3, af4e067e1dcf926d9523dff11e46c45fd9fa9da2 ≤ v < e595ff350b2fd600823ee8491df7df693ae4b7c5, af4e067e1dcf926d9523dff11e46c45fd9fa9da2 ≤ v < f4ee84f27625ce1fdf41e8483fa0561a1b837d10, 2.6.23 | 98c12abb275b75a98ff62de9466d21e4daa98536, 63d962ac7a52c0ff4cd09af2e284dce5e5955dfe, 0c02eb70b1dd4ae9bb304ce6cdadbc6faba2b2e9, c7e5ac737db25d7387fe517cb5207706782b6cf8, 033b0c0780adee32dde218179e9bc51d2525108f, abb6fd93e05e80668d2317fe1110bc99b05034c3, e595ff350b2fd600823ee8491df7df693ae4b7c5, f4ee84f27625ce1fdf41e8483fa0561a1b837d10 |
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