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authorJakub Kicinski <kuba@kernel.org>2025-04-10 16:49:17 -0700
committerJakub Kicinski <kuba@kernel.org>2025-04-10 16:51:07 -0700
commitcb7103298d1c5d8f71aa79283b64ca01c30264c7 (patch)
treece77754286d5a0ccbcaf92c47db1063a80745252 /io_uring/kbuf.c
parenta9843689e2de1a3727d58b4225e4f8664937aefd (diff)
parentab59a8605604f71bbbc16077270dc3f39648b7fc (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.15-rc2). Conflict: Documentation/networking/netdevices.rst net/core/lock_debug.c 04efcee6ef8d ("net: hold instance lock during NETDEV_CHANGE") 03df156dd3a6 ("xdp: double protect netdev->xdp_flags with netdev->lock") No adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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))