aboutsummaryrefslogtreecommitdiffstats
path: root/io_uring/kbuf.c
diff options
context:
space:
mode:
authorHerbert Xu <herbert@gondor.apana.org.au>2025-05-05 13:25:15 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2025-05-05 13:25:15 +0800
commitfba4aafaba8a6ca2bb42e854c37ff9a685ddfd71 (patch)
tree4ba74ac925fc7d7b131fa54239b43c00a42a3429 /io_uring/kbuf.c
parentcrypto: s390/sha512 - Fix sha512 state size (diff)
parentLinux 6.15-rc5 (diff)
downloadlinux-fba4aafaba8a6ca2bb42e854c37ff9a685ddfd71.tar.gz
linux-fba4aafaba8a6ca2bb42e854c37ff9a685ddfd71.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux v6.15-rc5
Merge mainline to pick up bcachefs poly1305 patch 4bf4b5046de0 ("bcachefs: use library APIs for ChaCha20 and Poly1305"). This is a prerequisite for removing the poly1305 shash algorithm.
Diffstat (limited to 'io_uring/kbuf.c')
-rw-r--r--io_uring/kbuf.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/io_uring/kbuf.c b/io_uring/kbuf.c
index 098109259671..953d5e742569 100644
--- a/io_uring/kbuf.c
+++ b/io_uring/kbuf.c
@@ -504,6 +504,8 @@ int io_provide_buffers_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe
p->nbufs = tmp;
p->addr = READ_ONCE(sqe->addr);
p->len = READ_ONCE(sqe->len);
+ if (!p->len)
+ return -EINVAL;
if (check_mul_overflow((unsigned long)p->len, (unsigned long)p->nbufs,
&size))