[PATCH 0/2 v2] [xenial] CVE-2019-19768

[Benjamin M Romer]

In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the
__blk_add_trace function in kernel/trace/blktrace.c (which is used to fill
out a blk_io_trace structure and place it in a per-cpu sub-buffer).

v2: corrected two merge errors.

Cengiz Can (1):
  blktrace: fix dereference after null check

Jan Kara (1):
  blktrace: Protect q->blk_trace with RCU

 include/linux/blkdev.h       |   2 +-
 include/linux/blktrace_api.h |   6 +-
 kernel/trace/blktrace.c      | 112 ++++++++++++++++++++++++++---------
 3 files changed, 89 insertions(+), 31 deletions(-)

-- 
2.20.1