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9902a49b0b
Kind value can be passed to API nvgpu_vm_map() from User space (through IOCTL NVGPU_AS_IOCTL_MAP_BUFFER_EX) But kind value is not checked for sane values before storing it in bfr.kind_v And then we use this kind value as array index in gk20a_kind_is_supported() which is incorrect Fix this by ensuring in nvgpu_vm_map() that the kind value is well within range Bug 200291879 Coverity id : 2567923 Coverity id : 2567924 Change-Id: Ic57395018727cbd2260c929581db256e427316c6 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1496597 GVS: Gerrit_Virtual_Submit Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
/*
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* drivers/video/tegra/host/gk20a/kind_gk20a.h
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*
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* GK20A memory kind management
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*
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* Copyright (c) 2011-2014, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __KIND_GK20A_H__
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#define __KIND_GK20A_H__
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#include <nvgpu/bitops.h>
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void gk20a_init_uncompressed_kind_map(void);
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void gk20a_init_kind_attr(void);
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extern u16 gk20a_kind_attr[];
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#define NV_KIND_ATTR_SIZE 256
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#define NV_KIND_DEFAULT -1
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#define GK20A_KIND_ATTR_SUPPORTED BIT(0)
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#define GK20A_KIND_ATTR_COMPRESSIBLE BIT(1)
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#define GK20A_KIND_ATTR_Z BIT(2)
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#define GK20A_KIND_ATTR_C BIT(3)
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#define GK20A_KIND_ATTR_ZBC BIT(4)
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static inline bool gk20a_kind_is_supported(u8 k)
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{
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return !!(gk20a_kind_attr[k] & GK20A_KIND_ATTR_SUPPORTED);
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}
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static inline bool gk20a_kind_is_compressible(u8 k)
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{
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return !!(gk20a_kind_attr[k] & GK20A_KIND_ATTR_COMPRESSIBLE);
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}
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static inline bool gk20a_kind_is_z(u8 k)
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{
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return !!(gk20a_kind_attr[k] & GK20A_KIND_ATTR_Z);
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}
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static inline bool gk20a_kind_is_c(u8 k)
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{
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return !!(gk20a_kind_attr[k] & GK20A_KIND_ATTR_C);
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}
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static inline bool gk20a_kind_is_zbc(u8 k)
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{
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return !!(gk20a_kind_attr[k] & GK20A_KIND_ATTR_ZBC);
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}
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/* maps kind to its uncompressed version */
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extern u8 gk20a_uc_kind_map[];
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static inline u8 gk20a_get_uncompressed_kind(u8 k)
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{
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return gk20a_uc_kind_map[k];
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}
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#endif /* __KIND_GK20A_H__ */
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