From: Nathan Scott <nathans@sgi.com>
Date: Tue, 1 Nov 2005 23:31:41 +0000 (+1100)
Subject: [XFS] Fix signedness issues in dquot ID handling, allowing uids/gids above
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c310ab6c071a688e5291028972d1ae8314f67536;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[XFS] Fix signedness issues in dquot ID handling, allowing uids/gids above
MAXINT

SGI-PV: 942528
SGI-Modid: xfs-linux:xfs-kern:23828a

Signed-off-by: Nathan Scott <nathans@sgi.com>
---

diff --git a/fs/xfs/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c
index e2e8d35fa4d0..9987977a4927 100644
--- a/fs/xfs/quota/xfs_dquot.c
+++ b/fs/xfs/quota/xfs_dquot.c
@@ -563,8 +563,7 @@ xfs_qm_dqtobp(
 	 */
 	if (dqp->q_blkno == (xfs_daddr_t) 0) {
 		/* We use the id as an index */
-		dqp->q_fileoffset = (xfs_fileoff_t) ((uint)id /
-						     XFS_QM_DQPERBLK(mp));
+		dqp->q_fileoffset = (xfs_fileoff_t)id / XFS_QM_DQPERBLK(mp);
 		nmaps = 1;
 		quotip = XFS_DQ_TO_QIP(dqp);
 		xfs_ilock(quotip, XFS_ILOCK_SHARED);
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
index 15e02e8a9d4f..4e397940b3a6 100644
--- a/fs/xfs/quota/xfs_qm_syscalls.c
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -109,10 +109,7 @@ xfs_qm_quotactl(
 	vfsp = bhvtovfs(bdp);
 	mp = XFS_VFSTOM(vfsp);
 
-	if (addr == NULL && cmd != Q_SYNC)
-		return XFS_ERROR(EINVAL);
-	if (id < 0 && cmd != Q_SYNC)
-		return XFS_ERROR(EINVAL);
+	ASSERT(addr != NULL);
 
 	/*
 	 * The following commands are valid even when quotaoff.
@@ -122,7 +119,7 @@ xfs_qm_quotactl(
 		/*
 		 * Truncate quota files. quota must be off.
 		 */
-		if (XFS_IS_QUOTA_ON(mp) || addr == NULL)
+		if (XFS_IS_QUOTA_ON(mp))
 			return XFS_ERROR(EINVAL);
 		if (vfsp->vfs_flag & VFS_RDONLY)
 			return XFS_ERROR(EROFS);
@@ -140,8 +137,6 @@ xfs_qm_quotactl(
 		 * QUOTAON - enabling quota enforcement.
 		 * Quota accounting must be turned on at mount time.
 		 */
-		if (addr == NULL)
-			return XFS_ERROR(EINVAL);
 		if (vfsp->vfs_flag & VFS_RDONLY)
 			return XFS_ERROR(EROFS);
 		return (xfs_qm_scall_quotaon(mp,
diff --git a/fs/xfs/xfs_quota.h b/fs/xfs/xfs_quota.h
index 32cb79752d5d..ed965883f702 100644
--- a/fs/xfs/xfs_quota.h
+++ b/fs/xfs/xfs_quota.h
@@ -42,7 +42,7 @@
  * uid_t and gid_t are hard-coded to 32 bits in the inode.
  * Hence, an 'id' in a dquot is 32 bits..
  */
-typedef __int32_t	xfs_dqid_t;
+typedef __uint32_t	xfs_dqid_t;
 
 /*
  * Eventhough users may not have quota limits occupying all 64-bits,