[PATCH v2 0/2] ucounts: Fix rlimit max values check

From: Alexey Gladkov
Date: Mon Nov 29 2021 - 15:40:25 EST


Checking the rlimit value specified in init_user_ns from the created userns does
not work properly. The issue is that the maximum value is taken by the same
rules as for ucounts. Because of this, we check the current rlimit counter value
with RLIM_INFINITY in init_user_ns.

v2:
- Fix a bug that was found by the lkp project.

--

Alexey Gladkov (2):
ucounts: Fix rlimit max values check
ucounts: Move rlimit max values from ucounts max

include/linux/user_namespace.h | 17 ++++++++++++-----
kernel/fork.c | 10 +++++-----
kernel/ucount.c | 19 +++++++++----------
kernel/user_namespace.c | 10 +++++-----
4 files changed, 31 insertions(+), 25 deletions(-)

--
2.33.0