* [PATCH] drm/amd/display: Fix NULL deref in debugfs odm_combine_segments
@ 2025-10-13 16:47 Rong Zhang
2025-11-03 18:15 ` Rong Zhang
0 siblings, 1 reply; 3+ messages in thread
From: Rong Zhang @ 2025-10-13 16:47 UTC (permalink / raw)
To: Harry Wentland, Leo Li, Rodrigo Siqueira, Alex Deucher,
Christian König, David Airlie, Simona Vetter
Cc: Rong Zhang, Wenjing Liu, Hamza Mahfooz, Aurabindo Pillai, amd-gfx,
dri-devel, linux-kernel, stable
When a connector is connected but inactive (e.g., disabled by desktop
environments), pipe_ctx->stream_res.tg will be destroyed. Then, reading
odm_combine_segments causes kernel NULL pointer dereference.
BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: Oops: 0000 [#1] SMP NOPTI
CPU: 16 UID: 0 PID: 26474 Comm: cat Not tainted 6.17.0+ #2 PREEMPT(lazy) e6a17af9ee6db7c63e9d90dbe5b28ccab67520c6
Hardware name: LENOVO 21Q4/LNVNB161216, BIOS PXCN25WW 03/27/2025
RIP: 0010:odm_combine_segments_show+0x93/0xf0 [amdgpu]
Code: 41 83 b8 b0 00 00 00 01 75 6e 48 98 ba a1 ff ff ff 48 c1 e0 0c 48 8d 8c 07 d8 02 00 00 48 85 c9 74 2d 48 8b bc 07 f0 08 00 00 <48> 8b 07 48 8b 80 08 02 00>
RSP: 0018:ffffd1bf4b953c58 EFLAGS: 00010286
RAX: 0000000000005000 RBX: ffff8e35976b02d0 RCX: ffff8e3aeed052d8
RDX: 00000000ffffffa1 RSI: ffff8e35a3120800 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff8e3580eb0000 R09: ffff8e35976b02d0
R10: ffffd1bf4b953c78 R11: 0000000000000000 R12: ffffd1bf4b953d08
R13: 0000000000040000 R14: 0000000000000001 R15: 0000000000000001
FS: 00007f44d3f9f740(0000) GS:ffff8e3caa47f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000006485c2000 CR4: 0000000000f50ef0
PKRU: 55555554
Call Trace:
<TASK>
seq_read_iter+0x125/0x490
? __alloc_frozen_pages_noprof+0x18f/0x350
seq_read+0x12c/0x170
full_proxy_read+0x51/0x80
vfs_read+0xbc/0x390
? __handle_mm_fault+0xa46/0xef0
? do_syscall_64+0x71/0x900
ksys_read+0x73/0xf0
do_syscall_64+0x71/0x900
? count_memcg_events+0xc2/0x190
? handle_mm_fault+0x1d7/0x2d0
? do_user_addr_fault+0x21a/0x690
? exc_page_fault+0x7e/0x1a0
entry_SYSCALL_64_after_hwframe+0x6c/0x74
RIP: 0033:0x7f44d4031687
Code: 48 89 fa 4c 89 df e8 58 b3 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00>
RSP: 002b:00007ffdb4b5f0b0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f44d3f9f740 RCX: 00007f44d4031687
RDX: 0000000000040000 RSI: 00007f44d3f5e000 RDI: 0000000000000003
RBP: 0000000000040000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00007f44d3f5e000
R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000040000
</TASK>
Modules linked in: tls tcp_diag inet_diag xt_mark ccm snd_hrtimer snd_seq_dummy snd_seq_midi snd_seq_oss snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device x>
snd_hda_codec_atihdmi snd_hda_codec_realtek_lib lenovo_wmi_helpers think_lmi snd_hda_codec_generic snd_hda_codec_hdmi snd_soc_core kvm snd_compress uvcvideo sn>
platform_profile joydev amd_pmc mousedev mac_hid sch_fq_codel uinput i2c_dev parport_pc ppdev lp parport nvme_fabrics loop nfnetlink ip_tables x_tables dm_cryp>
CR2: 0000000000000000
---[ end trace 0000000000000000 ]---
RIP: 0010:odm_combine_segments_show+0x93/0xf0 [amdgpu]
Code: 41 83 b8 b0 00 00 00 01 75 6e 48 98 ba a1 ff ff ff 48 c1 e0 0c 48 8d 8c 07 d8 02 00 00 48 85 c9 74 2d 48 8b bc 07 f0 08 00 00 <48> 8b 07 48 8b 80 08 02 00>
RSP: 0018:ffffd1bf4b953c58 EFLAGS: 00010286
RAX: 0000000000005000 RBX: ffff8e35976b02d0 RCX: ffff8e3aeed052d8
RDX: 00000000ffffffa1 RSI: ffff8e35a3120800 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff8e3580eb0000 R09: ffff8e35976b02d0
R10: ffffd1bf4b953c78 R11: 0000000000000000 R12: ffffd1bf4b953d08
R13: 0000000000040000 R14: 0000000000000001 R15: 0000000000000001
FS: 00007f44d3f9f740(0000) GS:ffff8e3caa47f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000006485c2000 CR4: 0000000000f50ef0
PKRU: 55555554
Fix this by checking pipe_ctx->stream_res.tg before dereferencing.
Fixes: 07926ba8a44f ("drm/amd/display: Add debugfs interface for ODM combine info")
Cc: stable@vger.kernel.org
Signed-off-by: Rong Zhang <i@rong.moe>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
index f263e1a4537e1..00dac862b665a 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -1302,7 +1302,8 @@ static int odm_combine_segments_show(struct seq_file *m, void *unused)
if (connector->status != connector_status_connected)
return -ENODEV;
- if (pipe_ctx != NULL && pipe_ctx->stream_res.tg->funcs->get_odm_combine_segments)
+ if (pipe_ctx && pipe_ctx->stream_res.tg &&
+ pipe_ctx->stream_res.tg->funcs->get_odm_combine_segments)
pipe_ctx->stream_res.tg->funcs->get_odm_combine_segments(pipe_ctx->stream_res.tg, &segments);
seq_printf(m, "%d\n", segments);
base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787
--
2.51.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] drm/amd/display: Fix NULL deref in debugfs odm_combine_segments
2025-10-13 16:47 [PATCH] drm/amd/display: Fix NULL deref in debugfs odm_combine_segments Rong Zhang
@ 2025-11-03 18:15 ` Rong Zhang
2025-11-03 21:09 ` Mario Limonciello
0 siblings, 1 reply; 3+ messages in thread
From: Rong Zhang @ 2025-11-03 18:15 UTC (permalink / raw)
To: Harry Wentland, Leo Li, Rodrigo Siqueira, Alex Deucher,
Christian König, David Airlie, Simona Vetter
Cc: Roman Li, ChiaHsuan (Tom) Chung, Ray Wu, Mario Limonciello,
Wenjing Liu, Hamza Mahfooz, Aurabindo Pillai, amd-gfx, dri-devel,
linux-kernel, stable
Hi all,
On Tue, 2025-10-14 at 00:47 +0800, Rong Zhang wrote:
> When a connector is connected but inactive (e.g., disabled by desktop
> environments), pipe_ctx->stream_res.tg will be destroyed. Then, reading
> odm_combine_segments causes kernel NULL pointer dereference.
>
> BUG: kernel NULL pointer dereference, address: 0000000000000000
> #PF: supervisor read access in kernel mode
> #PF: error_code(0x0000) - not-present page
> PGD 0 P4D 0
> Oops: Oops: 0000 [#1] SMP NOPTI
> CPU: 16 UID: 0 PID: 26474 Comm: cat Not tainted 6.17.0+ #2 PREEMPT(lazy) e6a17af9ee6db7c63e9d90dbe5b28ccab67520c6
> Hardware name: LENOVO 21Q4/LNVNB161216, BIOS PXCN25WW 03/27/2025
> RIP: 0010:odm_combine_segments_show+0x93/0xf0 [amdgpu]
> Code: 41 83 b8 b0 00 00 00 01 75 6e 48 98 ba a1 ff ff ff 48 c1 e0 0c 48 8d 8c 07 d8 02 00 00 48 85 c9 74 2d 48 8b bc 07 f0 08 00 00 <48> 8b 07 48 8b 80 08 02 00>
> RSP: 0018:ffffd1bf4b953c58 EFLAGS: 00010286
> RAX: 0000000000005000 RBX: ffff8e35976b02d0 RCX: ffff8e3aeed052d8
> RDX: 00000000ffffffa1 RSI: ffff8e35a3120800 RDI: 0000000000000000
> RBP: 0000000000000000 R08: ffff8e3580eb0000 R09: ffff8e35976b02d0
> R10: ffffd1bf4b953c78 R11: 0000000000000000 R12: ffffd1bf4b953d08
> R13: 0000000000040000 R14: 0000000000000001 R15: 0000000000000001
> FS: 00007f44d3f9f740(0000) GS:ffff8e3caa47f000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 0000000000000000 CR3: 00000006485c2000 CR4: 0000000000f50ef0
> PKRU: 55555554
> Call Trace:
> <TASK>
> seq_read_iter+0x125/0x490
> ? __alloc_frozen_pages_noprof+0x18f/0x350
> seq_read+0x12c/0x170
> full_proxy_read+0x51/0x80
> vfs_read+0xbc/0x390
> ? __handle_mm_fault+0xa46/0xef0
> ? do_syscall_64+0x71/0x900
> ksys_read+0x73/0xf0
> do_syscall_64+0x71/0x900
> ? count_memcg_events+0xc2/0x190
> ? handle_mm_fault+0x1d7/0x2d0
> ? do_user_addr_fault+0x21a/0x690
> ? exc_page_fault+0x7e/0x1a0
> entry_SYSCALL_64_after_hwframe+0x6c/0x74
> RIP: 0033:0x7f44d4031687
> Code: 48 89 fa 4c 89 df e8 58 b3 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00>
> RSP: 002b:00007ffdb4b5f0b0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
> RAX: ffffffffffffffda RBX: 00007f44d3f9f740 RCX: 00007f44d4031687
> RDX: 0000000000040000 RSI: 00007f44d3f5e000 RDI: 0000000000000003
> RBP: 0000000000040000 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000202 R12: 00007f44d3f5e000
> R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000040000
> </TASK>
> Modules linked in: tls tcp_diag inet_diag xt_mark ccm snd_hrtimer snd_seq_dummy snd_seq_midi snd_seq_oss snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device x>
> snd_hda_codec_atihdmi snd_hda_codec_realtek_lib lenovo_wmi_helpers think_lmi snd_hda_codec_generic snd_hda_codec_hdmi snd_soc_core kvm snd_compress uvcvideo sn>
> platform_profile joydev amd_pmc mousedev mac_hid sch_fq_codel uinput i2c_dev parport_pc ppdev lp parport nvme_fabrics loop nfnetlink ip_tables x_tables dm_cryp>
> CR2: 0000000000000000
> ---[ end trace 0000000000000000 ]---
> RIP: 0010:odm_combine_segments_show+0x93/0xf0 [amdgpu]
> Code: 41 83 b8 b0 00 00 00 01 75 6e 48 98 ba a1 ff ff ff 48 c1 e0 0c 48 8d 8c 07 d8 02 00 00 48 85 c9 74 2d 48 8b bc 07 f0 08 00 00 <48> 8b 07 48 8b 80 08 02 00>
> RSP: 0018:ffffd1bf4b953c58 EFLAGS: 00010286
> RAX: 0000000000005000 RBX: ffff8e35976b02d0 RCX: ffff8e3aeed052d8
> RDX: 00000000ffffffa1 RSI: ffff8e35a3120800 RDI: 0000000000000000
> RBP: 0000000000000000 R08: ffff8e3580eb0000 R09: ffff8e35976b02d0
> R10: ffffd1bf4b953c78 R11: 0000000000000000 R12: ffffd1bf4b953d08
> R13: 0000000000040000 R14: 0000000000000001 R15: 0000000000000001
> FS: 00007f44d3f9f740(0000) GS:ffff8e3caa47f000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 0000000000000000 CR3: 00000006485c2000 CR4: 0000000000f50ef0
> PKRU: 55555554
>
> Fix this by checking pipe_ctx->stream_res.tg before dereferencing.
>
> Fixes: 07926ba8a44f ("drm/amd/display: Add debugfs interface for ODM combine info")
> Cc: stable@vger.kernel.org
> Signed-off-by: Rong Zhang <i@rong.moe>
> ---
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
> index f263e1a4537e1..00dac862b665a 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
> @@ -1302,7 +1302,8 @@ static int odm_combine_segments_show(struct seq_file *m, void *unused)
> if (connector->status != connector_status_connected)
> return -ENODEV;
>
> - if (pipe_ctx != NULL && pipe_ctx->stream_res.tg->funcs->get_odm_combine_segments)
> + if (pipe_ctx && pipe_ctx->stream_res.tg &&
> + pipe_ctx->stream_res.tg->funcs->get_odm_combine_segments)
> pipe_ctx->stream_res.tg->funcs->get_odm_combine_segments(pipe_ctx->stream_res.tg, &segments);
>
> seq_printf(m, "%d\n", segments);
>
> base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787
Gentle ping.
Thanks,
Rong
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] drm/amd/display: Fix NULL deref in debugfs odm_combine_segments
2025-11-03 18:15 ` Rong Zhang
@ 2025-11-03 21:09 ` Mario Limonciello
0 siblings, 0 replies; 3+ messages in thread
From: Mario Limonciello @ 2025-11-03 21:09 UTC (permalink / raw)
To: Rong Zhang, Harry Wentland, Leo Li, Rodrigo Siqueira,
Alex Deucher, Christian König, David Airlie, Simona Vetter
Cc: Roman Li, ChiaHsuan (Tom) Chung, Ray Wu, Wenjing Liu,
Hamza Mahfooz, Aurabindo Pillai, amd-gfx, dri-devel, linux-kernel,
stable
On 11/3/2025 12:15 PM, Rong Zhang wrote:
> Hi all,
>
> On Tue, 2025-10-14 at 00:47 +0800, Rong Zhang wrote:
>> When a connector is connected but inactive (e.g., disabled by desktop
>> environments), pipe_ctx->stream_res.tg will be destroyed. Then, reading
>> odm_combine_segments causes kernel NULL pointer dereference.
>>
>> BUG: kernel NULL pointer dereference, address: 0000000000000000
>> #PF: supervisor read access in kernel mode
>> #PF: error_code(0x0000) - not-present page
>> PGD 0 P4D 0
>> Oops: Oops: 0000 [#1] SMP NOPTI
>> CPU: 16 UID: 0 PID: 26474 Comm: cat Not tainted 6.17.0+ #2 PREEMPT(lazy) e6a17af9ee6db7c63e9d90dbe5b28ccab67520c6
>> Hardware name: LENOVO 21Q4/LNVNB161216, BIOS PXCN25WW 03/27/2025
>> RIP: 0010:odm_combine_segments_show+0x93/0xf0 [amdgpu]
>> Code: 41 83 b8 b0 00 00 00 01 75 6e 48 98 ba a1 ff ff ff 48 c1 e0 0c 48 8d 8c 07 d8 02 00 00 48 85 c9 74 2d 48 8b bc 07 f0 08 00 00 <48> 8b 07 48 8b 80 08 02 00>
>> RSP: 0018:ffffd1bf4b953c58 EFLAGS: 00010286
>> RAX: 0000000000005000 RBX: ffff8e35976b02d0 RCX: ffff8e3aeed052d8
>> RDX: 00000000ffffffa1 RSI: ffff8e35a3120800 RDI: 0000000000000000
>> RBP: 0000000000000000 R08: ffff8e3580eb0000 R09: ffff8e35976b02d0
>> R10: ffffd1bf4b953c78 R11: 0000000000000000 R12: ffffd1bf4b953d08
>> R13: 0000000000040000 R14: 0000000000000001 R15: 0000000000000001
>> FS: 00007f44d3f9f740(0000) GS:ffff8e3caa47f000(0000) knlGS:0000000000000000
>> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> CR2: 0000000000000000 CR3: 00000006485c2000 CR4: 0000000000f50ef0
>> PKRU: 55555554
>> Call Trace:
>> <TASK>
>> seq_read_iter+0x125/0x490
>> ? __alloc_frozen_pages_noprof+0x18f/0x350
>> seq_read+0x12c/0x170
>> full_proxy_read+0x51/0x80
>> vfs_read+0xbc/0x390
>> ? __handle_mm_fault+0xa46/0xef0
>> ? do_syscall_64+0x71/0x900
>> ksys_read+0x73/0xf0
>> do_syscall_64+0x71/0x900
>> ? count_memcg_events+0xc2/0x190
>> ? handle_mm_fault+0x1d7/0x2d0
>> ? do_user_addr_fault+0x21a/0x690
>> ? exc_page_fault+0x7e/0x1a0
>> entry_SYSCALL_64_after_hwframe+0x6c/0x74
>> RIP: 0033:0x7f44d4031687
>> Code: 48 89 fa 4c 89 df e8 58 b3 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00>
>> RSP: 002b:00007ffdb4b5f0b0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
>> RAX: ffffffffffffffda RBX: 00007f44d3f9f740 RCX: 00007f44d4031687
>> RDX: 0000000000040000 RSI: 00007f44d3f5e000 RDI: 0000000000000003
>> RBP: 0000000000040000 R08: 0000000000000000 R09: 0000000000000000
>> R10: 0000000000000000 R11: 0000000000000202 R12: 00007f44d3f5e000
>> R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000040000
>> </TASK>
>> Modules linked in: tls tcp_diag inet_diag xt_mark ccm snd_hrtimer snd_seq_dummy snd_seq_midi snd_seq_oss snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device x>
>> snd_hda_codec_atihdmi snd_hda_codec_realtek_lib lenovo_wmi_helpers think_lmi snd_hda_codec_generic snd_hda_codec_hdmi snd_soc_core kvm snd_compress uvcvideo sn>
>> platform_profile joydev amd_pmc mousedev mac_hid sch_fq_codel uinput i2c_dev parport_pc ppdev lp parport nvme_fabrics loop nfnetlink ip_tables x_tables dm_cryp>
>> CR2: 0000000000000000
>> ---[ end trace 0000000000000000 ]---
>> RIP: 0010:odm_combine_segments_show+0x93/0xf0 [amdgpu]
>> Code: 41 83 b8 b0 00 00 00 01 75 6e 48 98 ba a1 ff ff ff 48 c1 e0 0c 48 8d 8c 07 d8 02 00 00 48 85 c9 74 2d 48 8b bc 07 f0 08 00 00 <48> 8b 07 48 8b 80 08 02 00>
>> RSP: 0018:ffffd1bf4b953c58 EFLAGS: 00010286
>> RAX: 0000000000005000 RBX: ffff8e35976b02d0 RCX: ffff8e3aeed052d8
>> RDX: 00000000ffffffa1 RSI: ffff8e35a3120800 RDI: 0000000000000000
>> RBP: 0000000000000000 R08: ffff8e3580eb0000 R09: ffff8e35976b02d0
>> R10: ffffd1bf4b953c78 R11: 0000000000000000 R12: ffffd1bf4b953d08
>> R13: 0000000000040000 R14: 0000000000000001 R15: 0000000000000001
>> FS: 00007f44d3f9f740(0000) GS:ffff8e3caa47f000(0000) knlGS:0000000000000000
>> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> CR2: 0000000000000000 CR3: 00000006485c2000 CR4: 0000000000f50ef0
>> PKRU: 55555554
>>
>> Fix this by checking pipe_ctx->stream_res.tg before dereferencing.
>>
>> Fixes: 07926ba8a44f ("drm/amd/display: Add debugfs interface for ODM combine info")
>> Cc: stable@vger.kernel.org
>> Signed-off-by: Rong Zhang <i@rong.moe>
>> ---
>> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 3 ++-
>> 1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
>> index f263e1a4537e1..00dac862b665a 100644
>> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
>> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
>> @@ -1302,7 +1302,8 @@ static int odm_combine_segments_show(struct seq_file *m, void *unused)
>> if (connector->status != connector_status_connected)
>> return -ENODEV;
>>
>> - if (pipe_ctx != NULL && pipe_ctx->stream_res.tg->funcs->get_odm_combine_segments)
>> + if (pipe_ctx && pipe_ctx->stream_res.tg &&
>> + pipe_ctx->stream_res.tg->funcs->get_odm_combine_segments)
>> pipe_ctx->stream_res.tg->funcs->get_odm_combine_segments(pipe_ctx->stream_res.tg, &segments);
>>
>> seq_printf(m, "%d\n", segments);
>>
>> base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787
>
> Gentle ping.
>
> Thanks,
> Rong
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
And applied, thanks.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2025-11-03 21:09 UTC | newest]
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2025-10-13 16:47 [PATCH] drm/amd/display: Fix NULL deref in debugfs odm_combine_segments Rong Zhang
2025-11-03 18:15 ` Rong Zhang
2025-11-03 21:09 ` Mario Limonciello
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