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Set overflow boundary to isize::MAX for memory related syscalls

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Marsman1996
2024-08-29 22:26:36 +08:00
committed by Tate, Hongliang Tian
parent 9589b332aa
commit 745ac6d982
3 changed files with 3 additions and 3 deletions
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2
kernel/src/syscall/munmap.rs
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@ -14,7 +14,7 @@ pub fn sys_munmap(addr: Vaddr, len: usize, ctx: &Context) -> Result<SyscallRetur
if len == 0 {
return_errno_with_message!(Errno::EINVAL, "munmap len cannot be zero");
}
if len > usize::MAX - PAGE_SIZE + 1 {
if len > isize::MAX as usize {
return_errno_with_message!(Errno::ENOMEM, "munmap len align overflow");
}