416baaa9-dc9f-4396-8d5f-8c081fb06d67NVD:CVE-2021-47476CVE-2021-47476
In the Linux kernel, the following vulnerability has been resolved:
comedi: ni_usb6501: fix NULL-deref in command paths
The driver uses endpoint-sized USB transfer buffers but had no sanity
checks on the sizes. This can lead to zero-size-pointer dereferences or
overflowed transfer buffers in ni6501_port_command() and
ni6501_counter_command() if a (malicious) device has smaller max-packet
sizes than expected (or when doing descriptor fuzz testing).
Add the missing sanity checks to probe().
References
git.kernel.org/stable/c/4a9d43cb5d5f39fa39fc1da438517004cc95f7ea
git.kernel.org/stable/c/58478143771b20ab219937b1c30a706590a59224
git.kernel.org/stable/c/907767da8f3a925b060c740e0b5c92ea7dbec440
git.kernel.org/stable/c/aa39738423503825625853b643b9e99d11c23816
git.kernel.org/stable/c/b0156b7c9649d8f55a2ce3d3258509f1b2a181c3
git.kernel.org/stable/c/bc51111bf6e8e7b6cc94b133e4c291273a16acd1
git.kernel.org/stable/c/d6a727a681a39ae4f73081a9bedb45d14f95bdd1
git.kernel.org/stable/c/df7b1238f3b599a0b9284249772cdfd1ea83a632
git.kernel.org/stable/c/ef143dc0c3defe56730ecd3a9de7b3e1d7e557c1
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