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| author | Konstantin Belousov <kib@FreeBSD.org> | 2021-04-13 19:12:19 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2021-04-23 11:14:09 +0000 |
| commit | 2df5e7711bee3c35209d576aa57ef09a7a839d79 (patch) | |
| tree | b424ccd16b072e0299cbb94417474eca097405a7 | |
| parent | 7f4d5d3cb4ef368f7b3e022ac72d3f9b239b552b (diff) | |
| download | src-2df5e7711bee3c35209d576aa57ef09a7a839d79.tar.gz src-2df5e7711bee3c35209d576aa57ef09a7a839d79.zip | |
sbuf_uionew(): sbuf_new() takes int as length
(cherry picked from commit 116f26f947b8bbf868dcd85d79226406029a45ee)
| -rw-r--r-- | sys/kern/subr_sbuf.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/kern/subr_sbuf.c b/sys/kern/subr_sbuf.c index cdeaf690208f..b7f135e81206 100644 --- a/sys/kern/subr_sbuf.c +++ b/sys/kern/subr_sbuf.c @@ -266,6 +266,10 @@ sbuf_uionew(struct sbuf *s, struct uio *uio, int *error) KASSERT(error != NULL, ("%s called with NULL error pointer", __func__)); + if (uio->uio_resid >= INT_MAX || uio->uio_resid < SBUF_MINSIZE - 1) { + *error = EINVAL; + return (NULL); + } s = sbuf_new(s, NULL, uio->uio_resid + 1, 0); if (s == NULL) { *error = ENOMEM; |