linux-stable/fs/overlayfs
Amir Goldstein be9857a4d2 ovl: fix memory leak in ovl_parse_param()
commit 37f32f5264 upstream.

On failure to parse parameters in ovl_parse_param_lowerdir(), it is
necessary to update ctx->nr with the correct nr before using
ovl_reset_lowerdirs() to release l->name.

Reported-and-tested-by: syzbot+26eedf3631650972f17c@syzkaller.appspotmail.com
Fixes: c835110b58 ("ovl: remove unused code in lowerdir param parsing")
Co-authored-by: Edward Adam Davis <eadavis@qq.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-05-02 16:32:49 +02:00
..
copy_up.c v6.6-rc4.vfs.fixes 2023-09-26 08:50:30 -07:00
dir.c ovl: store enum redirect_mode in config instead of a string 2023-06-19 14:02:01 +03:00
export.c ovl: fix NULL pointer defer when encoding non-decodable lower fid 2023-10-03 09:24:11 +03:00
file.c ovl: fix file reference leak when submitting aio 2023-10-02 13:08:31 +03:00
inode.c fs: Pass AT_GETATTR_NOSEC flag to getattr interface function 2023-12-03 07:33:03 +01:00
Kconfig ovl: Kconfig: introduce CONFIG_OVERLAY_FS_DEBUG 2023-08-12 19:02:53 +03:00
Makefile ovl: modify layer parameter parsing 2023-06-20 14:10:40 +03:00
namei.c ovl: make consistent use of OVL_FS() 2023-08-12 19:02:54 +03:00
overlayfs.h fs: Pass AT_GETATTR_NOSEC flag to getattr interface function 2023-12-03 07:33:03 +01:00
ovl_entry.h ovl: make use of ->layers safe in rcu pathwalk 2023-10-02 17:45:02 +03:00
params.c ovl: fix memory leak in ovl_parse_param() 2024-05-02 16:32:49 +02:00
params.h ovl: store and show the user provided lowerdir mount option 2024-03-26 18:19:18 -04:00
readdir.c vfs: get rid of old '->iterate' directory operation 2023-08-06 15:08:35 +02:00
super.c ovl: store and show the user provided lowerdir mount option 2024-03-26 18:19:18 -04:00
util.c overlayfs update for 6.6 2023-08-30 11:54:09 -07:00