In the Linux kernel, the following vulnerability has been resolved:
NFSv4: Fix incorrect argument passed to nfs4_delete_lease() in nfs4_add_lease()
When nfs4_add_lease() races with a delegation return, it calls
nfs4_delete_lease() to clean up. Previously, it passed priv,
which can legitimately be NULL. Passing a NULL priv eventually
leads to a NULL pointer dereference in generic_setlease().
Ссылки 4
https://git.kernel.org/stable/c/468e458ffde907ba19acd2102ca1fbb8f6fbede2
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d148a652d52fd6aee96daf798922eb800ebb3018
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d179ff22cd8514f966966fd9ad425dcbb98e1ada
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ff7244faa13b23e9acfad9df0438f0b44b338f62
416baaa9-dc9f-4396-8d5f-8c081fb06d67