diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/lsm.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/lsm.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/tools/testing/selftests/bpf/progs/lsm.c b/tools/testing/selftests/bpf/progs/lsm.c index d8d8af623bc2..7de173daf27b 100644 --- a/tools/testing/selftests/bpf/progs/lsm.c +++ b/tools/testing/selftests/bpf/progs/lsm.c @@ -4,11 +4,12 @@ * Copyright 2020 Google LLC. */ -#include "bpf_misc.h" #include "vmlinux.h" +#include <errno.h> +#include <bpf/bpf_core_read.h> #include <bpf/bpf_helpers.h> #include <bpf/bpf_tracing.h> -#include <errno.h> +#include "bpf_misc.h" struct { __uint(type, BPF_MAP_TYPE_ARRAY); @@ -88,14 +89,16 @@ SEC("lsm/file_mprotect") int BPF_PROG(test_int_hook, struct vm_area_struct *vma, unsigned long reqprot, unsigned long prot, int ret) { - if (ret != 0) + struct mm_struct *mm = vma->vm_mm; + + if (ret != 0 || !mm) return ret; - __u32 pid = bpf_get_current_pid_tgid() >> 32; + __s32 pid = bpf_get_current_pid_tgid() >> 32; int is_stack = 0; - is_stack = (vma->vm_start <= vma->vm_mm->start_stack && - vma->vm_end >= vma->vm_mm->start_stack); + is_stack = (vma->vm_start <= mm->start_stack && + vma->vm_end >= mm->start_stack); if (is_stack && monitored_pid == pid) { mprotect_count++; @@ -164,8 +167,8 @@ int copy_test = 0; SEC("fentry.s/" SYS_PREFIX "sys_setdomainname") int BPF_PROG(test_sys_setdomainname, struct pt_regs *regs) { - void *ptr = (void *)PT_REGS_PARM1(regs); - int len = PT_REGS_PARM2(regs); + void *ptr = (void *)PT_REGS_PARM1_SYSCALL(regs); + int len = PT_REGS_PARM2_SYSCALL(regs); int buf = 0; long ret; |