diff options
| author | Alexey Gladkov <legion@kernel.org> | 2021-04-22 15:27:13 +0300 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2021-04-30 22:14:02 +0300 |
| commit | d64696905554e919321e31afc210606653b8f6a4 (patch) | |
| tree | 7c153f685f7e89823fc6c0b3e420d8fff12037df /kernel/user.c | |
| parent | 6e52a9f0532f912af37bab4caf18b57d1b9845f4 (diff) | |
| download | linux-d64696905554e919321e31afc210606653b8f6a4.tar.xz | |
Reimplement RLIMIT_SIGPENDING on top of ucounts
The rlimit counter is tied to uid in the user_namespace. This allows
rlimit values to be specified in userns even if they are already
globally exceeded by the user. However, the value of the previous
user_namespaces cannot be exceeded.
Changelog
v11:
* Revert most of changes to fix performance issues.
v10:
* Fix memory leak on get_ucounts failure.
Signed-off-by: Alexey Gladkov <legion@kernel.org>
Link: https://lkml.kernel.org/r/df9d7764dddd50f28616b7840de74ec0f81711a8.1619094428.git.legion@kernel.org
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'kernel/user.c')
| -rw-r--r-- | kernel/user.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/user.c b/kernel/user.c index 7f5ff498207a..6737327f83be 100644 --- a/kernel/user.c +++ b/kernel/user.c @@ -98,7 +98,6 @@ static DEFINE_SPINLOCK(uidhash_lock); /* root_user.__count is 1, for init task cred */ struct user_struct root_user = { .__count = REFCOUNT_INIT(1), - .sigpending = ATOMIC_INIT(0), .locked_shm = 0, .uid = GLOBAL_ROOT_UID, .ratelimit = RATELIMIT_STATE_INIT(root_user.ratelimit, 0, 0), |