Sabyrzhan Tasbolatov 53f6c858c4 drivers/misc/vmw_vmci: restrict too big queue size in qp_host_alloc_queue ... commit 2fd10bcf0310b9525b2af9e1f7aa9ddd87c3772e upstream. syzbot found WARNING in qp_broker_alloc[1] in qp_host_alloc_queue() when num_pages is 0x100001, giving queue_size + queue_page_size bigger than KMALLOC_MAX_SIZE for kzalloc(), resulting order >= MAX_ORDER condition. queue_size + queue_page_size=0x8000d8, where KMALLOC_MAX_SIZE=0x400000. [1] Call Trace: alloc_pages include/linux/gfp.h:547 [inline] kmalloc_order+0x40/0x130 mm/slab_common.c:837 kmalloc_order_trace+0x15/0x70 mm/slab_common.c:853 kmalloc_large include/linux/slab.h:481 [inline] __kmalloc+0x257/0x330 mm/slub.c:3959 kmalloc include/linux/slab.h:557 [inline] kzalloc include/linux/slab.h:682 [inline] qp_host_alloc_queue drivers/misc/vmw_vmci/vmci_queue_pair.c:540 [inline] qp_broker_create drivers/misc/vmw_vmci/vmci_queue_pair.c:1351 [inline] qp_broker_alloc+0x936/0x2740 drivers/misc/vmw_vmci/vmci_queue_pair.c:1739 Reported-by: syzbot+15ec7391f3d6a1a7cc7d@syzkaller.appspotmail.com Signed-off-by: Sabyrzhan Tasbolatov <snovitoll@gmail.com> Link: https://lore.kernel.org/r/20210209102612.2112247-1-snovitoll@gmail.com Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-03-04 11:38:32 +01:00
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Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
vmci_context.c	misc: vmw_vmci: fix kernel info-leak by initializing dbells in vmci_ctx_get_chkpt_doorbells()	2021-01-06 14:56:52 +01:00
vmci_context.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_datagram.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_datagram.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_doorbell.c	VMCI: Release resource if the work is already queued	2019-08-28 22:57:07 +02:00
vmci_doorbell.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_driver.c	vsock/vmci: make vmci_vsock_cb_host_called static	2019-11-20 12:39:29 -08:00
vmci_driver.h	vsock/vmci: register vmci_transport only when VMCI guest/host are active	2019-11-14 18:12:18 -08:00
vmci_event.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_event.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_guest.c	vsock/vmci: register vmci_transport only when VMCI guest/host are active	2019-11-14 18:12:18 -08:00
vmci_handle_array.c	VMCI: Fix integer overflow in VMCI handle arrays	2019-06-21 16:04:05 +02:00
vmci_handle_array.h	VMCI: Fix integer overflow in VMCI handle arrays	2019-06-21 16:04:05 +02:00
vmci_host.c	vmci_host: get rid of pointless access_ok()	2020-05-29 11:06:38 -04:00
vmci_queue_pair.c	drivers/misc/vmw_vmci: restrict too big queue size in qp_host_alloc_queue	2021-03-04 11:38:32 +01:00
vmci_queue_pair.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_resource.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_resource.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_route.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_route.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00