At the point where find_active_uprobe_rcu() is used we know that VMA in question has triggered software breakpoint, so we don't need to validate vma->vm_flags. Keep only vma->vm_file NULL check.
Reviewed-by: Masami Hiramatsu (Google) <[email protected]> Acked-by: Oleg Nesterov <[email protected]> Suggested-by: Oleg Nesterov <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> --- kernel/events/uprobes.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index a76ddc5fc982..c4da8f741f3a 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -2305,7 +2305,7 @@ static struct uprobe *find_active_uprobe_rcu(unsigned long bp_vaddr, int *is_swb mmap_read_lock(mm); vma = vma_lookup(mm, bp_vaddr); if (vma) { - if (valid_vma(vma, false)) { + if (vma->vm_file) { struct inode *inode = file_inode(vma->vm_file); loff_t offset = vaddr_to_offset(vma, bp_vaddr); -- 2.43.5
