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Verified Commit e9347fb1 authored by android-t1's avatar android-t1 Committed by Ahmed Harhash
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Integrate security patch 2023-02-05-CVE-2022-0850 

Change-Id: I4ba5550cb914215dcfa6700126de4fa274ca8cc2
parent 4f65d715

fs/ext4/extents.c

+3 −0
Original line number Diff line number Diff line
@@ -862,6 +862,7 @@ int ext4_ext_tree_init(handle_t *handle, struct inode *inode) 
	eh->eh_entries = 0;

	eh->eh_magic = EXT4_EXT_MAGIC;

	eh->eh_max = cpu_to_le16(ext4_ext_space_root(inode, 0));

	eh->eh_generation = 0;

	ext4_mark_inode_dirty(handle, inode);

	return 0;

}
@@ -1118,6 +1119,7 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode, 
	neh->eh_max = cpu_to_le16(ext4_ext_space_block(inode, 0));

	neh->eh_magic = EXT4_EXT_MAGIC;

	neh->eh_depth = 0;

	neh->eh_generation = 0;



	/* move remainder of path[depth] to the new leaf */

	if (unlikely(path[depth].p_hdr->eh_entries !=
@@ -1195,6 +1197,7 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode, 
		neh->eh_magic = EXT4_EXT_MAGIC;

		neh->eh_max = cpu_to_le16(ext4_ext_space_block_idx(inode, 0));

		neh->eh_depth = cpu_to_le16(depth - i);

		neh->eh_generation = 0;

		fidx = EXT_FIRST_INDEX(neh);

		fidx->ei_block = border;

		ext4_idx_store_pblock(fidx, oldblock);