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Fix writev fault when io_vec.len is 0

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YanWQ-monad 2024-04-21 02:00:52 +08:00 committed by Tate, Hongliang Tian
parent c778e0c07c
commit 4f575e2028
1 changed files with 1 additions and 1 deletions
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2
kernel/aster-nix/src/syscall/writev.rs
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@ -41,7 +41,7 @@ fn do_sys_writev(fd: FileDescripter, io_vec_ptr: Vaddr, io_vec_count: usize) ->
let mut total_len = 0;
for i in 0..io_vec_count {
let io_vec = read_val_from_user::<IoVec>(io_vec_ptr + i * core::mem::size_of::<IoVec>())?;
if io_vec.base == 0 {
if io_vec.base == 0 || io_vec.len == 0 {
continue;
}
let buffer = {