Re: [PATCH] vhost: initialize vq->nheads properly
From: Breno Leitao <leitao@debian.org>
Date: 2025-07-29 09:11:43
Also in:
kvm, lkml, virtualization
On Tue, Jul 29, 2025 at 03:39:16PM +0800, Jason Wang wrote:
Commit 7918bb2d19c9 ("vhost: basic in order support") introduces
vq->nheads to store the number of batched used buffers per used elem
but it forgets to initialize the vq->nheads to NULL in
vhost_dev_init() this will cause kfree() that would try to free it
without be allocated if SET_OWNER is not called.
Reported-by: JAEHOON KIM <redacted>
Reported-by: Breno Leitao <leitao@debian.org>
Fixes: 7918bb2d19c9 ("vhost: basic in order support")
Signed-off-by: Jason Wang <redacted>Tested-by: Breno Leitao <leitao@debian.org>