kernel-hacking-2024-linux-s.../kernel/kcsan
Jason A. Donenfeld e8a533cbeb treewide: use get_random_u32_inclusive() when possible
These cases were done with this Coccinelle:

@@
expression H;
expression L;
@@
- (get_random_u32_below(H) + L)
+ get_random_u32_inclusive(L, H + L - 1)

@@
expression H;
expression L;
expression E;
@@
  get_random_u32_inclusive(L,
  H
- + E
- - E
  )

@@
expression H;
expression L;
expression E;
@@
  get_random_u32_inclusive(L,
  H
- - E
- + E
  )

@@
expression H;
expression L;
expression E;
expression F;
@@
  get_random_u32_inclusive(L,
  H
- - E
  + F
- + E
  )

@@
expression H;
expression L;
expression E;
expression F;
@@
  get_random_u32_inclusive(L,
  H
- + E
  + F
- - E
  )

And then subsequently cleaned up by hand, with several automatic cases
rejected if it didn't make sense contextually.

Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> # for infiniband
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-11-18 02:18:02 +01:00
..
.kunitconfig kcsan: test: Add a .kunitconfig to run KCSAN tests 2022-07-22 09:22:59 -06:00
core.c kcsan: Avoid nested contexts reading inconsistent reorder_access 2021-12-09 16:42:29 -08:00
debugfs.c kcsan: use u64 instead of cycles_t 2021-07-30 17:09:02 +02:00
encoding.h kcsan: Add missing license and copyright headers 2021-03-08 14:27:43 -08:00
kcsan.h kcsan: Add ability to pass instruction pointer of access to reporting 2021-09-13 16:41:19 -07:00
kcsan_test.c linux-kselftest-kunit-5.19-rc1 2022-05-25 11:32:53 -07:00
Makefile KCSAN updates for v5.17 2022-01-11 09:51:26 -08:00
permissive.h kcsan: permissive: Ignore data-racy 1-bit value changes 2021-07-20 13:49:44 -07:00
report.c kcsan: Show location access was reordered to 2021-12-09 16:42:27 -08:00
selftest.c treewide: use get_random_u32_inclusive() when possible 2022-11-18 02:18:02 +01:00