[PATCH 4.19 129/247] isofs: release buffer head before return
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-03-01 20:59:51
Also in:
lkml
Subsystem:
filesystems (vfs and infrastructure), isofs filesystem, the rest · Maintainers:
Alexander Viro, Christian Brauner, Jan Kara, Linus Torvalds
From: Pan Bian <redacted>
[ Upstream commit 0a6dc67a6aa45f19bd4ff89b4f468fc50c4b8daa ]
Release the buffer_head before returning error code in
do_isofs_readdir() and isofs_find_entry().
Fixes: 2deb1acc653c ("isofs: fix access to unallocated memory when reading corrupted filesystem")
Link: https://lore.kernel.org/r/20210118120455.118955-1-bianpan2016@163.com (local)
Signed-off-by: Pan Bian <redacted>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/isofs/dir.c | 1 +
fs/isofs/namei.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/fs/isofs/dir.c b/fs/isofs/dir.c
index 947ce22f5b3c3..55df4d80793ba 100644
--- a/fs/isofs/dir.c
+++ b/fs/isofs/dir.c@@ -152,6 +152,7 @@ static int do_isofs_readdir(struct inode *inode, struct file *file, printk(KERN_NOTICE "iso9660: Corrupted directory entry" " in block %lu of inode %lu\n", block, inode->i_ino); + brelse(bh); return -EIO; }
diff --git a/fs/isofs/namei.c b/fs/isofs/namei.c
index cac468f04820e..558e7c51ce0d4 100644
--- a/fs/isofs/namei.c
+++ b/fs/isofs/namei.c@@ -102,6 +102,7 @@ isofs_find_entry(struct inode *dir, struct dentry *dentry, printk(KERN_NOTICE "iso9660: Corrupted directory entry" " in block %lu of inode %lu\n", block, dir->i_ino); + brelse(bh); return 0; }
--
2.27.0