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authorKawai, Hidehiro <hidehiro.kawai.ez@hitachi.com>2007-07-19 01:48:27 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-19 10:04:46 -0700
commit6c5d523826dc639df709ed0f88c5d2ce25379652 (patch)
treeef2fa8cb30266b3a9b047902794e78c583b099da /security
parent76fdbb25f963de5dc1e308325f0578a2f92b1c2d (diff)
coredump masking: reimplementation of dumpable using two flags
This patch changes mm_struct.dumpable to a pair of bit flags. set_dumpable() converts three-value dumpable to two flags and stores it into lower two bits of mm_struct.flags instead of mm_struct.dumpable. get_dumpable() behaves in the opposite way. [akpm@linux-foundation.org: export set_dumpable] Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: David Howells <dhowells@redhat.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'security')
-rw-r--r--security/commoncap.c2
-rw-r--r--security/dummy.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/security/commoncap.c b/security/commoncap.c
index 384379ede4fd..338606eb7238 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -148,7 +148,7 @@ void cap_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
if (bprm->e_uid != current->uid || bprm->e_gid != current->gid ||
!cap_issubset (new_permitted, current->cap_permitted)) {
- current->mm->dumpable = suid_dumpable;
+ set_dumpable(current->mm, suid_dumpable);
if (unsafe & ~LSM_UNSAFE_PTRACE_CAP) {
if (!capable(CAP_SETUID)) {
diff --git a/security/dummy.c b/security/dummy.c
index d6a112ce2975..19d813d5e083 100644
--- a/security/dummy.c
+++ b/security/dummy.c
@@ -130,7 +130,7 @@ static void dummy_bprm_free_security (struct linux_binprm *bprm)
static void dummy_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
{
if (bprm->e_uid != current->uid || bprm->e_gid != current->gid) {
- current->mm->dumpable = suid_dumpable;
+ set_dumpable(current->mm, suid_dumpable);
if ((unsafe & ~LSM_UNSAFE_PTRACE_CAP) && !capable(CAP_SETUID)) {
bprm->e_uid = current->uid;