From: Paolo 'Blaisorblade' Giarrusso <[EMAIL PROTECTED]> Fix double free in the error path - when name is assigned into root_inode we do not own it any more and we must not kfree() it - see patch for details.
Thanks to William Stearns for the initial report. CC: William Stearns <[EMAIL PROTECTED]> Signed-off-by: Paolo 'Blaisorblade' Giarrusso <[EMAIL PROTECTED]> --- fs/hostfs/hostfs_kern.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index e965eb1..6f10e43 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -966,6 +966,9 @@ static int hostfs_fill_sb_common(struct super_block *sb, void *d, int silent) goto out_put; HOSTFS_I(root_inode)->host_filename = name; + /* Avoid that in the error path, iput(root_inode) frees again name through + * hostfs_destroy_inode! */ + name = NULL; err = -ENOMEM; sb->s_root = d_alloc_root(root_inode); @@ -977,7 +980,7 @@ static int hostfs_fill_sb_common(struct super_block *sb, void *d, int silent) /* No iput in this case because the dput does that for us */ dput(sb->s_root); sb->s_root = NULL; - goto out_free; + goto out; } return(0); ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel