APPLIED: [PATCH 0/2 v2] [xenial] CVE-2019-19768
Khaled Elmously
khalid.elmously at canonical.com
Fri Apr 3 03:31:59 UTC 2020
On 2020-04-01 10:16:32 , Benjamin M Romer wrote:
> 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
>
>
> --
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