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| author | neel <neel@FreeBSD.org> | 2014-06-17 21:49:03 +0000 |
|---|---|---|
| committer | neel <neel@FreeBSD.org> | 2014-06-17 21:49:03 +0000 |
| commit | 13424f9f51add0a3df94b2ed4303d5f455209c60 (patch) | |
| tree | 92e05a040e6cf15520f6e7203c95bc1c24219ce8 | |
| parent | 652a2c3d9a45b8fbf725ab5be85182201c9b9477 (diff) | |
| download | FreeBSD-src-13424f9f51add0a3df94b2ed4303d5f455209c60.zip FreeBSD-src-13424f9f51add0a3df94b2ed4303d5f455209c60.tar.gz | |
MFC r266901
Allocate a zeroed LDT.
Failing to do this might result in the LDT appearing to run out of free
descriptors because of random junk in the descriptor's 'sd_type' field.
| -rw-r--r-- | sys/amd64/amd64/sys_machdep.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/amd64/amd64/sys_machdep.c b/sys/amd64/amd64/sys_machdep.c index 81ac0e3..36d9f08 100644 --- a/sys/amd64/amd64/sys_machdep.c +++ b/sys/amd64/amd64/sys_machdep.c @@ -465,7 +465,7 @@ user_ldt_alloc(struct proc *p, int force) new_ldt = malloc(sizeof(struct proc_ldt), M_SUBPROC, M_WAITOK); new_ldt->ldt_base = (caddr_t)kmem_malloc(kernel_arena, max_ldt_segment * sizeof(struct user_segment_descriptor), - M_WAITOK); + M_WAITOK | M_ZERO); if (new_ldt->ldt_base == NULL) { FREE(new_ldt, M_SUBPROC); mtx_lock(&dt_lock); |
