From cc41a536524fba126ab11c41a866cf9037adbaf8 Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Sun, 16 Oct 2016 19:51:51 +0200 Subject: [PATCH] ubifs: Use a random number for cookies Signed-off-by: Richard Weinberger --- fs/ubifs/journal.c | 3 +++ fs/ubifs/ubifs.h | 1 + 2 files changed, 4 insertions(+) diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c index 0698cccc6223..88d33775f18b 100644 --- a/fs/ubifs/journal.c +++ b/fs/ubifs/journal.c @@ -589,6 +589,7 @@ int ubifs_jnl_update(struct ubifs_info *c, const struct inode *dir, dent->nlen = cpu_to_le16(fname_len(nm)); memcpy(dent->name, fname_name(nm), fname_len(nm)); dent->name[fname_len(nm)] = '\0'; + dent->cookie = prandom_u32(); zero_dent_node_unused(dent); ubifs_prep_grp_node(c, dent, dlen, 0); @@ -1124,6 +1125,7 @@ int ubifs_jnl_rename(struct ubifs_info *c, const struct inode *old_dir, dent->nlen = cpu_to_le16(fname_len(new_nm)); memcpy(dent->name, fname_name(new_nm), fname_len(new_nm)); dent->name[fname_len(new_nm)] = '\0'; + dent->cookie = prandom_u32(); zero_dent_node_unused(dent); ubifs_prep_grp_node(c, dent, dlen1, 0); @@ -1142,6 +1144,7 @@ int ubifs_jnl_rename(struct ubifs_info *c, const struct inode *old_dir, dent2->nlen = cpu_to_le16(fname_len(old_nm)); memcpy(dent2->name, fname_name(old_nm), fname_len(old_nm)); dent2->name[fname_len(old_nm)] = '\0'; + dent2->cookie = prandom_u32(); zero_dent_node_unused(dent2); ubifs_prep_grp_node(c, dent2, dlen2, 0); diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index a80610758543..9be71b6a4cd2 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -39,6 +39,7 @@ #include #include #include +#include #include "ubifs-media.h" /* Version of this UBIFS implementation */