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Fix: mmap len cannot be zero

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Jianfeng Jiang 2024-08-16 06:11:22 +00:00 committed by Tate, Hongliang Tian
parent 32a1a53ee7
commit 212440dbb1
1 changed files with 4 additions and 0 deletions
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4
kernel/src/syscall/mmap.rs
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@ -54,6 +54,10 @@ fn do_sys_mmap(
check_option(&option)?; check_option(&option)?;
if len == 0 {
return_errno_with_message!(Errno::EINVAL, "mmap len cannot be zero");
}
let len = len.align_up(PAGE_SIZE); let len = len.align_up(PAGE_SIZE);
if offset % PAGE_SIZE != 0 { if offset % PAGE_SIZE != 0 {