lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date:   Wed, 16 Dec 2020 18:31:46 -0500
From:   Vivek Goyal <>
Subject: [RFC PATCH 0/3] vfs, overlayfs: Fix syncfs() to return error


This is V2 of patches which tries to fix syncfs() for overlayfs to
return error code when sync_filesystem(upper_sb) returns error or
there are writeback errors on upper_sb.

I posted V1 of patch here.

This is just compile tested patch series. Trying to get early feedback
to figure out what direction to move in to fix this issue. 


Vivek Goyal (3):
  vfs: add new f_op->syncfs vector
  overlayfs: Implement f_op->syncfs() call
  overlayfs: Check writeback errors w.r.t upper in ->syncfs()

 fs/overlayfs/file.c      |  1 +
 fs/overlayfs/overlayfs.h |  3 +++
 fs/overlayfs/ovl_entry.h |  2 ++
 fs/overlayfs/readdir.c   |  1 +
 fs/overlayfs/super.c     | 41 +++++++++++++++++++++++++++++++++++++++-
 fs/sync.c                | 29 +++++++++++++++++++---------
 include/linux/fs.h       |  1 +
 7 files changed, 68 insertions(+), 10 deletions(-)


Powered by blists - more mailing lists