Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 079/124] ext4: avoid buffer leak on shutdown in ext4_mark_iloc_dirty() | Date | Mon, 19 Nov 2018 17:28:53 +0100 |
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4.14-stable review patch. If anyone has any objections, please let me know.
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From: Vasily Averin <vvs@virtuozzo.com>
commit a6758309a005060b8297a538a457c88699cb2520 upstream.
ext4_mark_iloc_dirty() callers expect that it releases iloc->bh even if it returns an error.
Fixes: 0db1ff222d40 ("ext4: add shutdown bit and check for it") Signed-off-by: Vasily Averin <vvs@virtuozzo.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: stable@kernel.org # 4.11 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/ext4/inode.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
--- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -5671,9 +5671,10 @@ int ext4_mark_iloc_dirty(handle_t *handl { int err = 0; - if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) + if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) { + put_bh(iloc->bh); return -EIO; - + } if (IS_I_VERSION(inode)) inode_inc_iversion(inode);
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