From: Dan Carpenter <dan.carpenter@oracle.com>
To: kbuild@lists.01.org, Aurabindo Pillai <aurabindo.pillai@amd.com>
Cc: lkp@intel.com, kbuild-all@lists.01.org,
linux-kernel@vger.kernel.org,
Alex Deucher <alexander.deucher@amd.com>,
Chris Park <Chris.Park@amd.com>
Subject: drivers/gpu/drm/amd/amdgpu/../display/dc/dcn303/dcn303_resource.c:533 dcn303_stream_encoder_create() error: buffer overflow 'stream_enc_regs' 2 <= 4
Date: Wed, 5 Jan 2022 13:11:22 +0300 [thread overview]
Message-ID: <202112190934.db7anVBT-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 3f667b5d4053ad54aee13dab5c94f04ff75ddfdf
commit: cd6d421e3d1ad5926b74091254e345db730e7706 drm/amd/display: Initial DC support for Beige Goby
config: x86_64-randconfig-m001-20211207 (https://download.01.org/0day-ci/archive/20211219/202112190934.db7anVBT-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
New smatch warnings:
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn303/dcn303_resource.c:533 dcn303_stream_encoder_create() error: buffer overflow 'stream_enc_regs' 2 <= 4
Old smatch warnings:
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn303/dcn303_resource.c:531 dcn303_stream_encoder_create() warn: possible memory leak of 'enc1'
vim +/stream_enc_regs +533 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn303/dcn303_resource.c
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 511 static struct stream_encoder *dcn303_stream_encoder_create(enum engine_id eng_id, struct dc_context *ctx)
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 512 {
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 513 struct dcn10_stream_encoder *enc1;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 514 struct vpg *vpg;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 515 struct afmt *afmt;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 516 int vpg_inst;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 517 int afmt_inst;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 518
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 519 /* Mapping of VPG, AFMT, DME register blocks to DIO block instance */
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 520 if (eng_id <= ENGINE_ID_DIGE) {
^^^^^^^^^^^^^^^^^^^^^^^^
eng_id <= 4
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 521 vpg_inst = eng_id;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 522 afmt_inst = eng_id;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 523 } else
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 524 return NULL;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 525
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 526 enc1 = kzalloc(sizeof(struct dcn10_stream_encoder), GFP_KERNEL);
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 527 vpg = dcn303_vpg_create(ctx, vpg_inst);
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 528 afmt = dcn303_afmt_create(ctx, afmt_inst);
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 529
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 530 if (!enc1 || !vpg || !afmt)
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 531 return NULL;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 532
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 @533 dcn30_dio_stream_encoder_construct(enc1, ctx, ctx->dc_bios, eng_id, vpg, afmt, &stream_enc_regs[eng_id],
^^^^^^^^^^^^^^^^^^^^^^^^
Out of bounds. (I have not reviewed the context but these warnings are
pretty reliable).
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 534 &se_shift, &se_mask);
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 535
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 536 return &enc1->base;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 537 }
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
WARNING: multiple messages have this Message-ID (diff)
From: kernel test robot <lkp@intel.com>
To: kbuild@lists.01.org
Subject: drivers/gpu/drm/amd/amdgpu/../display/dc/dcn303/dcn303_resource.c:533 dcn303_stream_encoder_create() error: buffer overflow 'stream_enc_regs' 2 <= 4
Date: Sun, 19 Dec 2021 09:55:16 +0800 [thread overview]
Message-ID: <202112190934.db7anVBT-lkp@intel.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 3612 bytes --]
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Aurabindo Pillai <aurabindo.pillai@amd.com>
CC: Alex Deucher <alexander.deucher@amd.com>
CC: Chris Park <Chris.Park@amd.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 3f667b5d4053ad54aee13dab5c94f04ff75ddfdf
commit: cd6d421e3d1ad5926b74091254e345db730e7706 drm/amd/display: Initial DC support for Beige Goby
date: 7 months ago
:::::: branch date: 5 hours ago
:::::: commit date: 7 months ago
config: x86_64-randconfig-m001-20211207 (https://download.01.org/0day-ci/archive/20211219/202112190934.db7anVBT-lkp(a)intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
New smatch warnings:
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn303/dcn303_resource.c:533 dcn303_stream_encoder_create() error: buffer overflow 'stream_enc_regs' 2 <= 4
Old smatch warnings:
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn303/dcn303_resource.c:531 dcn303_stream_encoder_create() warn: possible memory leak of 'enc1'
vim +/stream_enc_regs +533 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn303/dcn303_resource.c
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 510
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 511 static struct stream_encoder *dcn303_stream_encoder_create(enum engine_id eng_id, struct dc_context *ctx)
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 512 {
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 513 struct dcn10_stream_encoder *enc1;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 514 struct vpg *vpg;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 515 struct afmt *afmt;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 516 int vpg_inst;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 517 int afmt_inst;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 518
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 519 /* Mapping of VPG, AFMT, DME register blocks to DIO block instance */
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 520 if (eng_id <= ENGINE_ID_DIGE) {
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 521 vpg_inst = eng_id;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 522 afmt_inst = eng_id;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 523 } else
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 524 return NULL;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 525
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 526 enc1 = kzalloc(sizeof(struct dcn10_stream_encoder), GFP_KERNEL);
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 527 vpg = dcn303_vpg_create(ctx, vpg_inst);
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 528 afmt = dcn303_afmt_create(ctx, afmt_inst);
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 529
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 530 if (!enc1 || !vpg || !afmt)
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 531 return NULL;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 532
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 @533 dcn30_dio_stream_encoder_construct(enc1, ctx, ctx->dc_bios, eng_id, vpg, afmt, &stream_enc_regs[eng_id],
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 534 &se_shift, &se_mask);
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 535
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 536 return &enc1->base;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 537 }
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 538
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: kbuild-all@lists.01.org
Subject: drivers/gpu/drm/amd/amdgpu/../display/dc/dcn303/dcn303_resource.c:533 dcn303_stream_encoder_create() error: buffer overflow 'stream_enc_regs' 2 <= 4
Date: Wed, 05 Jan 2022 13:11:22 +0300 [thread overview]
Message-ID: <202112190934.db7anVBT-lkp@intel.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 3578 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 3f667b5d4053ad54aee13dab5c94f04ff75ddfdf
commit: cd6d421e3d1ad5926b74091254e345db730e7706 drm/amd/display: Initial DC support for Beige Goby
config: x86_64-randconfig-m001-20211207 (https://download.01.org/0day-ci/archive/20211219/202112190934.db7anVBT-lkp(a)intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
New smatch warnings:
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn303/dcn303_resource.c:533 dcn303_stream_encoder_create() error: buffer overflow 'stream_enc_regs' 2 <= 4
Old smatch warnings:
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn303/dcn303_resource.c:531 dcn303_stream_encoder_create() warn: possible memory leak of 'enc1'
vim +/stream_enc_regs +533 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn303/dcn303_resource.c
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 511 static struct stream_encoder *dcn303_stream_encoder_create(enum engine_id eng_id, struct dc_context *ctx)
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 512 {
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 513 struct dcn10_stream_encoder *enc1;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 514 struct vpg *vpg;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 515 struct afmt *afmt;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 516 int vpg_inst;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 517 int afmt_inst;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 518
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 519 /* Mapping of VPG, AFMT, DME register blocks to DIO block instance */
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 520 if (eng_id <= ENGINE_ID_DIGE) {
^^^^^^^^^^^^^^^^^^^^^^^^
eng_id <= 4
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 521 vpg_inst = eng_id;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 522 afmt_inst = eng_id;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 523 } else
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 524 return NULL;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 525
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 526 enc1 = kzalloc(sizeof(struct dcn10_stream_encoder), GFP_KERNEL);
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 527 vpg = dcn303_vpg_create(ctx, vpg_inst);
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 528 afmt = dcn303_afmt_create(ctx, afmt_inst);
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 529
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 530 if (!enc1 || !vpg || !afmt)
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 531 return NULL;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 532
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 @533 dcn30_dio_stream_encoder_construct(enc1, ctx, ctx->dc_bios, eng_id, vpg, afmt, &stream_enc_regs[eng_id],
^^^^^^^^^^^^^^^^^^^^^^^^
Out of bounds. (I have not reviewed the context but these warnings are
pretty reliable).
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 534 &se_shift, &se_mask);
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 535
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 536 return &enc1->base;
cd6d421e3d1ad5 Aurabindo Pillai 2021-03-15 537 }
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
next reply other threads:[~2022-01-05 10:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-19 1:55 kernel test robot [this message]
2022-01-05 10:11 ` drivers/gpu/drm/amd/amdgpu/../display/dc/dcn303/dcn303_resource.c:533 dcn303_stream_encoder_create() error: buffer overflow 'stream_enc_regs' 2 <= 4 Dan Carpenter
2022-01-05 10:11 ` Dan Carpenter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=202112190934.db7anVBT-lkp@intel.com \
--to=dan.carpenter@oracle.com \
--cc=Chris.Park@amd.com \
--cc=alexander.deucher@amd.com \
--cc=aurabindo.pillai@amd.com \
--cc=kbuild-all@lists.01.org \
--cc=kbuild@lists.01.org \
--cc=linux-kernel@vger.kernel.org \
--cc=lkp@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.