In the Linux kernel, the following vulnerability has been resolved: nfsd: nfsd4_spo_must_allow() must check this is a v4 compound request If the request being processed is not a v4 compound request, then examining the cstate can have undefined results. This patch adds a check that the rpc procedure being executed (rq_procinfo) is the NFSPROC4_COMPOUND procedure.
https://git.kernel.org/stable/c/e7e943ddd1c6731812357a28e7954ade3a7d8517
https://git.kernel.org/stable/c/bf78a2706ce975981eb5167f2d3b609eb5d24c19
https://git.kernel.org/stable/c/b1d0323a09a29f81572c7391e0d80d78724729c9
https://git.kernel.org/stable/c/7a75a956692aa64211a9e95781af1ec461642de4
https://git.kernel.org/stable/c/64a723b0281ecaa59d31aad73ef8e408a84cb603
https://git.kernel.org/stable/c/425efc6b3292a3c79bfee4a1661cf043dcd9cf2f
https://git.kernel.org/stable/c/2c54bd5a380ebf646fb9efbc4ae782ff3a83a5af
https://git.kernel.org/stable/c/1244f0b2c3cecd3f349a877006e67c9492b41807