EUVD-2026-81984

In the Linux kernel, the following vulnerability has been resolved: ublk: validate auto buf reg before taking uringcmd With UBLKFAUTOBUFREG, invalid sqe-addr can fail after ublkfilliocmd has set UBLKIOFLAGACTIVE. The uringcmd is completed while the tag stays active, which can hang teardown. Split...

CVE-2026-90323

CVE-2026-90323 affects the ublk (Userspace Block) subsystem of the Linux kernel . When the UBLK_F_AUTO_BUF_REG flag is in use, an invalid sqe->addr can fail after ublk_fill_io_cmd() has already set UBLK_IO_FLAG_ACTIVE . This causes the uring_cmd to be completed while the tag remains active, wh...