On 4/19/21 4:56 PM, Samuel Mendoza-Jonas wrote:
The 4.14 backport of 9d7eceede ("bpf: restrict unknown scalars of mixed
signed bounds for unprivileged") adds the PTR_TO_MAP_VALUE check to the
wrong location in adjust_ptr_min_max_vals(), most likely because 4.14
doesn't include the commit that updates the if-statement to a
switch-statement (aad2eeaf4 "bpf: Simplify ptr_min_max_vals adjustment").
Move the check to the proper location in adjust_ptr_min_max_vals().
Fixes: 17efa65350c5a ("bpf: restrict unknown scalars of mixed signed bounds for unprivileged")
Signed-off-by: Samuel Mendoza-Jonas <samjonas@xxxxxxxxxx>
Reviewed-by: Frank van der Linden <fllinden@xxxxxxxxxx>
Reviewed-by: Ethan Chen <yishache@xxxxxxxxxx>
Just to be clear, the patch is for 4.14 stable branch.
Acked-by: Yonghong Song <yhs@xxxxxx>
