This series fixes the detection of read/write violations on stacked filesystems. To be able to access the relevant dentries necessary to detect files opened for writing on a stacked filesystem a new d_real_type D_REAL_FILEDATA is introduced that allows callers to access all relevant files involved in a stacked filesystem while traversing the layers. Stefan v2: - Simplified 2nd patch - Improvements on patch description on 1st patch Stefan Berger (2): ovl: Define D_REAL_FILEDATA for d_real to return dentry with data ima: Fix detection of read/write violations on stacked filesystems fs/overlayfs/super.c | 6 ++++++ include/linux/dcache.h | 1 + security/integrity/ima/ima_main.c | 21 ++++++++++++++++----- 3 files changed, 23 insertions(+), 5 deletions(-) -- 2.43.0
