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-rw-r--r--ipc/shm.c19
1 files changed, 16 insertions, 3 deletions
diff --git a/ipc/shm.c b/ipc/shm.c
index 1c2faf62bc73..809896851902 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -13,6 +13,8 @@
13 * Shared /dev/zero support, Kanoj Sarcar <kanoj@sgi.com> 13 * Shared /dev/zero support, Kanoj Sarcar <kanoj@sgi.com>
14 * Move the mm functionality over to mm/shmem.c, Christoph Rohland <cr@sap.com> 14 * Move the mm functionality over to mm/shmem.c, Christoph Rohland <cr@sap.com>
15 * 15 *
16 * support for audit of ipc object properties and permission changes
17 * Dustin Kirkland <dustin.kirkland@us.ibm.com>
16 */ 18 */
17 19
18#include <linux/config.h> 20#include <linux/config.h>
@@ -542,6 +544,10 @@ asmlinkage long sys_shmctl (int shmid, int cmd, struct shmid_ds __user *buf)
542 if(err) 544 if(err)
543 goto out_unlock; 545 goto out_unlock;
544 546
547 err = audit_ipc_obj(&(shp->shm_perm));
548 if (err)
549 goto out_unlock;
550
545 if (!capable(CAP_IPC_LOCK)) { 551 if (!capable(CAP_IPC_LOCK)) {
546 err = -EPERM; 552 err = -EPERM;
547 if (current->euid != shp->shm_perm.uid && 553 if (current->euid != shp->shm_perm.uid &&
@@ -594,6 +600,10 @@ asmlinkage long sys_shmctl (int shmid, int cmd, struct shmid_ds __user *buf)
594 if(err) 600 if(err)
595 goto out_unlock_up; 601 goto out_unlock_up;
596 602
603 err = audit_ipc_obj(&(shp->shm_perm));
604 if (err)
605 goto out_unlock_up;
606
597 if (current->euid != shp->shm_perm.uid && 607 if (current->euid != shp->shm_perm.uid &&
598 current->euid != shp->shm_perm.cuid && 608 current->euid != shp->shm_perm.cuid &&
599 !capable(CAP_SYS_ADMIN)) { 609 !capable(CAP_SYS_ADMIN)) {
@@ -627,12 +637,15 @@ asmlinkage long sys_shmctl (int shmid, int cmd, struct shmid_ds __user *buf)
627 err=-EINVAL; 637 err=-EINVAL;
628 if(shp==NULL) 638 if(shp==NULL)
629 goto out_up; 639 goto out_up;
630 if ((err = audit_ipc_perms(0, setbuf.uid, setbuf.gid,
631 setbuf.mode, &(shp->shm_perm))))
632 goto out_unlock_up;
633 err = shm_checkid(shp,shmid); 640 err = shm_checkid(shp,shmid);
634 if(err) 641 if(err)
635 goto out_unlock_up; 642 goto out_unlock_up;
643 err = audit_ipc_obj(&(shp->shm_perm));
644 if (err)
645 goto out_unlock_up;
646 err = audit_ipc_set_perm(0, setbuf.uid, setbuf.gid, setbuf.mode, &(shp->shm_perm));
647 if (err)
648 goto out_unlock_up;
636 err=-EPERM; 649 err=-EPERM;
637 if (current->euid != shp->shm_perm.uid && 650 if (current->euid != shp->shm_perm.uid &&
638 current->euid != shp->shm_perm.cuid && 651 current->euid != shp->shm_perm.cuid &&