Vulnerability Information
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Vulnerability Title
media: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035_i2c_master_xfer
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035_i2c_master_xfer In af9035_i2c_master_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 af9035_i2c_master_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()")
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux kernel 安全漏洞
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于dvb-usb-v2驱动中的af9035_i2c_master_xfer函数对msg[i].buf未进行充分检查，当msg[i].buf为null且msg[i].len为零时，会导致空指针解引用错误。
CVSS Information
N/A
Vulnerability Type
N/A