| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.1 265/267] hpfs: kstrdup() out of memory handling | Date | Fri, 31 Jul 2015 12:41:56 -0700 |
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4.1-stable review patch. If anyone has any objections, please let me know.
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From: Sanidhya Kashyap <sanidhya.gatech@gmail.com>
commit ce657611baf902f14ae559ce4e0787ead6712067 upstream.
There is a possibility of nothing being allocated to the new_opts in case of memory pressure, therefore return ENOMEM for such case.
Signed-off-by: Sanidhya Kashyap <sanidhya.gatech@gmail.com> Signed-off-by: Mikulas Patocka <mikulas@twibright.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/hpfs/super.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
--- a/fs/hpfs/super.c +++ b/fs/hpfs/super.c @@ -424,11 +424,14 @@ static int hpfs_remount_fs(struct super_ int o; struct hpfs_sb_info *sbi = hpfs_sb(s); char *new_opts = kstrdup(data, GFP_KERNEL); - + + if (!new_opts) + return -ENOMEM; + sync_filesystem(s); *flags |= MS_NOATIME; - + hpfs_lock(s); uid = sbi->sb_uid; gid = sbi->sb_gid; umask = 0777 & ~sbi->sb_mode;
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