CVE-2026-31437 | Linux Kernel up to 6.18.20/6.19.10 fs/netfs/direct_write.c netfs_unbuffered_write null pointer dereference (WID-SEC-2026-1252)
A vulnerability categorized as critical has been discovered in Linux Kernel up to 6.18.20/6.19.10. This vulnerability affects the function netfs_unbuffered_write of the file fs/netfs/direct_write.c. Such manipulation leads to null pointer dereference.
This vulnerability is documented as CVE-2026-31437. The attack requires being on the local network. There is not any exploit available.
It is advisable to upgrade the affected component.