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authorAlex Shi <alex.shi@linaro.org>2016-09-20 10:17:00 +0800
committerAlex Shi <alex.shi@linaro.org>2016-09-20 10:17:00 +0800
commitd2d693d1ba7d93ec7c5db8aca2da29a4c91f6782 (patch)
tree41920dcc166c491e7192eb1e3ba3861dff479abf /kernel/cred.c
parent573787341e57a73bf027c2ea3bdf18dc298ae0a0 (diff)
parent1d074db69c46d62ce82b331c2080e2fcb710bf4a (diff)
Merge remote-tracking branch 'lts/linux-4.4.y' into linux-linaro-lsk-v4.4
Conflicts: set ARM64_WORKAROUND_CAVIUM_27456 to 12 in arch/arm64/include/asm/cpufeature.h and add asm/memory.h in arch/arm64/kernel/entry.S
Diffstat (limited to 'kernel/cred.c')
-rw-r--r--kernel/cred.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/cred.c b/kernel/cred.c
index 71179a09c1d6..ff8606f77d90 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -689,6 +689,8 @@ EXPORT_SYMBOL(set_security_override_from_ctx);
*/
int set_create_files_as(struct cred *new, struct inode *inode)
{
+ if (!uid_valid(inode->i_uid) || !gid_valid(inode->i_gid))
+ return -EINVAL;
new->fsuid = inode->i_uid;
new->fsgid = inode->i_gid;
return security_kernel_create_files_as(new, inode);