CVE-2025-21988 Information

Description

In the Linux kernel the following vulnerability has been resolved:

fs/netfs/read_collect: add to next->prev_donated

If multiple subrequests donate data to the same ext\ request (depending on the subrequest completion order) each of them would overwrite the prev_donated field causing data corruption and a BUG() crash (\Can’t donate prior to front).

Reference

https://git.kernel.org/stable/c/e25cec3b76aba47a49138d2162fc809c6cd49c9e