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The access of vsock is not protected by vhost_vsock_lock. This may lead use after free since vhost_vsock_dev_release() may free the pointer at the same time. Fix this by holding the lock during the acess. Reported-by: syzbot+e3e074963495f92a89ed at syzkaller.appspotmail.com Fixes: 16320f363ae1 ("vhost-vsock: add pkt cancel capability") Fixes: 433fc58e6bf2 ("VSOCK: Introduce vhost_vsock.ko") Cc: Stefan Hajnoczi <stefanha at redhat.com> Signed-off-by: Jason Wang <jasowang at redhat.com> --- - The patch is need...

The access of vsock is not protected by vhost_vsock_lock. This may lead use after free since vhost_vsock_dev_release() may free the pointer at the same time. Fix this by holding the lock during the acess. Reported-by: syzbot+e3e074963495f92a89ed at syzkaller.appspotmail.com Fixes: 16320f363ae1 ("vhost-vsock: add pkt cancel capability") Fixes: 433fc58e6bf2 ("VSOCK: Introduce vhost_vsock.ko") Cc: Stefan Hajnoczi <stefanha at redhat.com> Signed-off-by: Jason Wang <jasowang at redhat.com> --- - The patch is need...

The access of vsock is not protected by vhost_vsock_lock. This may lead to use after free since vhost_vsock_dev_release() may free the pointer at the same time. Fix this by holding the lock during the access. Reported-by: syzbot+e3e074963495f92a89ed at syzkaller.appspotmail.com Fixes: 16320f363ae1 ("vhost-vsock: add pkt cancel capability") Fixes: 433fc58e6bf2 ("VSOCK: Introduce vhost_vsock.ko") Cc: Stefan Hajnoczi <stefanha at redhat.com> Signed-off-by: Jason Wang <jasowang at redhat.com> --- - V2: fix typos - T...

The access of vsock is not protected by vhost_vsock_lock. This may lead to use after free since vhost_vsock_dev_release() may free the pointer at the same time. Fix this by holding the lock during the access. Reported-by: syzbot+e3e074963495f92a89ed at syzkaller.appspotmail.com Fixes: 16320f363ae1 ("vhost-vsock: add pkt cancel capability") Fixes: 433fc58e6bf2 ("VSOCK: Introduce vhost_vsock.ko") Cc: Stefan Hajnoczi <stefanha at redhat.com> Signed-off-by: Jason Wang <jasowang at redhat.com> --- - V2: fix typos - T...

...g wrote: >> The access of vsock is not protected by vhost_vsock_lock. This may >> lead to use after free since vhost_vsock_dev_release() may free the >> pointer at the same time. >> >> Fix this by holding the lock during the access. >> >> Reported-by:syzbot+e3e074963495f92a89ed at syzkaller.appspotmail.com >> Fixes: 16320f363ae1 ("vhost-vsock: add pkt cancel capability") >> Fixes: 433fc58e6bf2 ("VSOCK: Introduce vhost_vsock.ko") >> Cc: Stefan Hajnoczi<stefanha at redhat.com> >> Signed-off-by: Jason Wang<jasowang at redh...

...g wrote: >> The access of vsock is not protected by vhost_vsock_lock. This may >> lead to use after free since vhost_vsock_dev_release() may free the >> pointer at the same time. >> >> Fix this by holding the lock during the access. >> >> Reported-by:syzbot+e3e074963495f92a89ed at syzkaller.appspotmail.com >> Fixes: 16320f363ae1 ("vhost-vsock: add pkt cancel capability") >> Fixes: 433fc58e6bf2 ("VSOCK: Introduce vhost_vsock.ko") >> Cc: Stefan Hajnoczi<stefanha at redhat.com> >> Signed-off-by: Jason Wang<jasowang at redh...

...f typos... > The access of vsock is not protected by vhost_vsock_lock. This may > lead use after free since vhost_vsock_dev_release() may free the Lead to use. > pointer at the same time. > > Fix this by holding the lock during the acess. Access. > Reported-by: syzbot+e3e074963495f92a89ed at syzkaller.appspotmail.com > Fixes: 16320f363ae1 ("vhost-vsock: add pkt cancel capability") > Fixes: 433fc58e6bf2 ("VSOCK: Introduce vhost_vsock.ko") > Cc: Stefan Hajnoczi <stefanha at redhat.com> > Signed-off-by: Jason Wang <jasowang at redhat.com> [.....

...:22:04PM +0800, Jason Wang wrote: > The access of vsock is not protected by vhost_vsock_lock. This may > lead to use after free since vhost_vsock_dev_release() may free the > pointer at the same time. > > Fix this by holding the lock during the access. > > Reported-by: syzbot+e3e074963495f92a89ed at syzkaller.appspotmail.com > Fixes: 16320f363ae1 ("vhost-vsock: add pkt cancel capability") > Fixes: 433fc58e6bf2 ("VSOCK: Introduce vhost_vsock.ko") > Cc: Stefan Hajnoczi <stefanha at redhat.com> > Signed-off-by: Jason Wang <jasowang at redhat.com> Wo...

...is not protected by vhost_vsock_lock. This may > > > lead to use after free since vhost_vsock_dev_release() may free the > > > pointer at the same time. > > > > > > Fix this by holding the lock during the access. > > > > > > Reported-by:syzbot+e3e074963495f92a89ed at syzkaller.appspotmail.com > > > Fixes: 16320f363ae1 ("vhost-vsock: add pkt cancel capability") > > > Fixes: 433fc58e6bf2 ("VSOCK: Introduce vhost_vsock.ko") > > > Cc: Stefan Hajnoczi<stefanha at redhat.com> > > > Signed-off-by: Jason...