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Change History

In the Linux kernel, the following vulnerability has been resolved:

vduse: fix memory corruption in vduse_dev_ioctl()

The "config.offset" comes from the user.  There needs to a check to
prevent it being out of bounds.  The "config.offset" and
"dev->config_size" variables are both type u32.  So if the offset if
out of bounds then the "dev->config_size - config.offset" subtraction
results in a very high u32 value.  The out of bounds offset can result
in memory corruption.

kernel.org https://git.kernel.org/stable/c/e6c67560b4341914bec32ec536e931c22062af65 [No types assigned]

kernel.org https://git.kernel.org/stable/c/ff9f9c6e74848170fcb45c8403c80d661484c8c9 [No types assigned]