diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2000-11-28 03:58:46 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2000-11-28 03:58:46 +0000 |
| commit | b63ad0882a16a5d28003e57f2b0b81dee3fb322b (patch) | |
| tree | 0a343ce219e2b8b38a5d702d66032c57b83d9720 /arch/i386/kernel/i387.c | |
| parent | a9d7bff9a84dba79609a0002e5321b74c4d64c64 (diff) | |
Merge with 2.4.0-test11.
Diffstat (limited to 'arch/i386/kernel/i387.c')
| -rw-r--r-- | arch/i386/kernel/i387.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/i386/kernel/i387.c b/arch/i386/kernel/i387.c index c3d052e8a..3031432d0 100644 --- a/arch/i386/kernel/i387.c +++ b/arch/i386/kernel/i387.c @@ -442,6 +442,8 @@ int set_fpxregs( struct task_struct *tsk, struct user_fxsr_struct *buf ) if ( HAVE_FXSR ) { __copy_from_user( &tsk->thread.i387.fxsave, (void *)buf, sizeof(struct user_fxsr_struct) ); + /* mxcsr bit 6 and 31-16 must be zero for security reasons */ + tsk->thread.i387.fxsave.mxcsr &= 0xffbf; return 0; } else { return -EIO; |