CVE-2026-64082

The CVE-2026-64082 issue affects the Linux kernel on riscv where uninitialized cregs data could be written to a task’s pt_regs during error paths. Specifically, compat_riscv_gpr_set() and compat_restore_sigcontext() call cregs_to_regs() unconditionally, even when user_regset_copyin() or __copy_fr...

CVE-2026-64082 riscv: Fix register corruption from uninitialized cregs on error

In the Linux kernel, the following vulnerability has been resolved: riscv: Fix register corruption from uninitialized cregs on error compatriscvgprset calls cregstoregs unconditionally, even when userregsetcopyin fails. Since cregs is an uninitialized stack variable, a copyin failure causes...

PT-2026-61399

In the Linux kernel, the following vulnerability has been resolved: riscv: Fix register corruption from uninitialized cregs on error compat riscv gpr set calls cregs to regs unconditionally, even when user regset copyin fails. Since cregs is an uninitialized stack variable, a copyin failure cause...