Eric Biggers 1b42503211 smack: use GFP_NOFS while holding inode_smack::smk_lock ... commit e5bfad3d7acc5702f32aafeb388362994f4d7bd0 upstream. inode_smack::smk_lock is taken during smack_d_instantiate(), which is called during a filesystem transaction when creating a file on ext4. Therefore to avoid a deadlock, all code that takes this lock must use GFP_NOFS, to prevent memory reclaim from waiting for the filesystem transaction to complete. Reported-by: syzbot+0eefc1e06a77d327a056@syzkaller.appspotmail.com Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-10-07 18:57:27 +02:00
..
Kconfig
Makefile
smack_access.c	smack: use GFP_NOFS while holding inode_smack::smk_lock	2019-10-07 18:57:27 +02:00
smack_lsm.c	smack: use GFP_NOFS while holding inode_smack::smk_lock	2019-10-07 18:57:27 +02:00
smack_netfilter.c
smack.h
smackfs.c