diff options
Diffstat (limited to 'ipc/shm.c')
-rw-r--r-- | ipc/shm.c | 19 |
1 files changed, 16 insertions, 3 deletions
@@ -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 && |