security: check for kstrdup() failure in lsm_append()
lsm_append() should return -ENOMEM if memory allocation failed.
Fixes: d69dece5f5
("LSM: Add /sys/kernel/security/lsm")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: James Morris <james.morris@microsoft.com>
zero-colors
parent
83a68a0679
commit
87ea584332
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@ -118,6 +118,8 @@ static int lsm_append(char *new, char **result)
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if (*result == NULL) {
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if (*result == NULL) {
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*result = kstrdup(new, GFP_KERNEL);
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*result = kstrdup(new, GFP_KERNEL);
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if (*result == NULL)
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return -ENOMEM;
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} else {
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} else {
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/* Check if it is the last registered name */
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/* Check if it is the last registered name */
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if (match_last_lsm(*result, new))
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if (match_last_lsm(*result, new))
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