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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-14 09:14:43 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-14 09:14:43 +0200 |
| commit | 99289bf1a76c0aea6ac0f77335b8c9bdca16aac7 (patch) | |
| tree | 69b9484abfd6014154b925fdc0733438ffdf923f /kernel/bpf/helpers.c | |
| parent | a69008475fc565cec5a760f1997f326773c84aac (diff) | |
| parent | 009c9aa5be652675a06d5211e1640e02bbb1c33d (diff) | |
Merge tag 'v5.13-rc6' into tty-next
We want the tty fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/bpf/helpers.c')
| -rw-r--r-- | kernel/bpf/helpers.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c index 73443498d88f..a2f1f15ce432 100644 --- a/kernel/bpf/helpers.c +++ b/kernel/bpf/helpers.c @@ -14,6 +14,7 @@ #include <linux/jiffies.h> #include <linux/pid_namespace.h> #include <linux/proc_ns.h> +#include <linux/security.h> #include "../../lib/kstrtox.h" @@ -1069,11 +1070,13 @@ bpf_base_func_proto(enum bpf_func_id func_id) case BPF_FUNC_probe_read_user: return &bpf_probe_read_user_proto; case BPF_FUNC_probe_read_kernel: - return &bpf_probe_read_kernel_proto; + return security_locked_down(LOCKDOWN_BPF_READ) < 0 ? + NULL : &bpf_probe_read_kernel_proto; case BPF_FUNC_probe_read_user_str: return &bpf_probe_read_user_str_proto; case BPF_FUNC_probe_read_kernel_str: - return &bpf_probe_read_kernel_str_proto; + return security_locked_down(LOCKDOWN_BPF_READ) < 0 ? + NULL : &bpf_probe_read_kernel_str_proto; case BPF_FUNC_snprintf_btf: return &bpf_snprintf_btf_proto; case BPF_FUNC_snprintf: |