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Fix off by one bug in LUKS2 keyslot max id allocation.

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This is almost impossible to hit bug. The max keyslot id is
checked in higher layer.
This commit is contained in:
Ondrej Kozina
2018-04-10 16:30:15 +02:00
committed by Milan Broz
parent 255c8e8ff4
commit 3616ee50c0
1 changed files with 1 additions and 1 deletions
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2
lib/luks2/luks2_keyslot_luks2.c
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@@ -400,7 +400,7 @@ int luks2_keyslot_alloc(struct crypt_device *cd,
if (keyslot == CRYPT_ANY_SLOT)
keyslot = LUKS2_keyslot_find_empty(hdr, "luks2");
if (keyslot < 0 || keyslot > LUKS2_KEYSLOTS_MAX)
if (keyslot < 0 || keyslot >= LUKS2_KEYSLOTS_MAX)
return -ENOMEM;
if (LUKS2_get_keyslot_jobj(hdr, keyslot)) {