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| author |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2022-03-14 19:14:29 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2022-03-14 19:14:29 -0700 |
| commit | ce8356335027d3929fbfae4127451adaf36e1cd4 (patch) | |
| tree | 8ac7d71d3b67a6138e811cd4d4e135d934233e47 /kernel/cgroup/cgroup-v1.c | |
| parent | Input: mt6779-keypad - fix signedness bug (diff) | |
| parent | Linux 5.17-rc8 (diff) | |
| download | linux-dev-ce8356335027d3929fbfae4127451adaf36e1cd4.tar.xz linux-dev-ce8356335027d3929fbfae4127451adaf36e1cd4.zip | |
Merge tag 'v5.17-rc8' into next
Sync up with mainline to again get the latest changes in HID subsystem.
Diffstat (limited to 'kernel/cgroup/cgroup-v1.c')
| -rw-r--r-- | kernel/cgroup/cgroup-v1.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/cgroup/cgroup-v1.c b/kernel/cgroup/cgroup-v1.c index 0e877dbcfeea..afc6c0e9c966 100644 --- a/kernel/cgroup/cgroup-v1.c +++ b/kernel/cgroup/cgroup-v1.c @@ -546,6 +546,7 @@ static ssize_t cgroup_release_agent_write(struct kernfs_open_file *of, char *buf, size_t nbytes, loff_t off) { struct cgroup *cgrp; + struct cgroup_file_ctx *ctx; BUILD_BUG_ON(sizeof(cgrp->root->release_agent_path) < PATH_MAX); @@ -553,8 +554,9 @@ static ssize_t cgroup_release_agent_write(struct kernfs_open_file *of, * Release agent gets called with all capabilities, * require capabilities to set release agent. */ - if ((of->file->f_cred->user_ns != &init_user_ns) || - !capable(CAP_SYS_ADMIN)) + ctx = of->priv; + if ((ctx->ns->user_ns != &init_user_ns) || + !file_ns_capable(of->file, &init_user_ns, CAP_SYS_ADMIN)) return -EPERM; cgrp = cgroup_kn_lock_live(of->kn, false); |