In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix untrusted unsigned subtract
Fix the following Smatch static checker warning:
net/rxrpc/rxgk_app.c:65 rxgk_yfs_decode_ticket() warn: untrusted unsigned subtract. ticket_len - 10 * 4
by prechecking the length of what were trying to extract in two places in the token and decoding for a response packet.
Also use sizeof() on the struct were extracting rather specifying the size numerically to be consistent with the other related statements.