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authorLinus Torvalds <torvalds@linux-foundation.org>2019-02-20 09:09:33 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-02-20 09:09:33 -0800
commit1f5a018c5b15c2e3e519ae8ca9bfb03a00384448 (patch)
treec6b61a0ed94f7e2c32450c6ac802d9b2a3446bcc /lib
parent40e196a906d969fd10d885c692d2674b3d657006 (diff)
parent7c1857bdbdf1e4c541e45eab477ee23ed4333ea4 (diff)
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Merge branch 'fixes-v5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull keys fixes from James Morris: - Handle quotas better, allowing full quota to be reached. - Fix the creation of shortcuts in the assoc_array internal representation when the index key needs to be an exact multiple of the machine word size. - Fix a dependency loop between the request_key contruction record and the request_key authentication key. The construction record isn't really necessary and can be dispensed with. - Set the timestamp on a new key rather than leaving it as 0. This would ordinarily be fine - provided the system clock is never set to a time before 1970 * 'fixes-v5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: keys: Timestamp new keys keys: Fix dependency loop between construction record and auth key assoc_array: Fix shortcut creation KEYS: allow reaching the keys quotas exactly
Diffstat (limited to 'lib')
-rw-r--r--lib/assoc_array.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/assoc_array.c b/lib/assoc_array.c
index c6659cb37033..59875eb278ea 100644
--- a/lib/assoc_array.c
+++ b/lib/assoc_array.c
@@ -768,9 +768,11 @@ all_leaves_cluster_together:
new_s0->index_key[i] =
ops->get_key_chunk(index_key, i * ASSOC_ARRAY_KEY_CHUNK_SIZE);
- blank = ULONG_MAX << (level & ASSOC_ARRAY_KEY_CHUNK_MASK);
- pr_devel("blank off [%zu] %d: %lx\n", keylen - 1, level, blank);
- new_s0->index_key[keylen - 1] &= ~blank;
+ if (level & ASSOC_ARRAY_KEY_CHUNK_MASK) {
+ blank = ULONG_MAX << (level & ASSOC_ARRAY_KEY_CHUNK_MASK);
+ pr_devel("blank off [%zu] %d: %lx\n", keylen - 1, level, blank);
+ new_s0->index_key[keylen - 1] &= ~blank;
+ }
/* This now reduces to a node splitting exercise for which we'll need
* to regenerate the disparity table.