CVE-2024-47683

drm/amd/display: Skip Recompute DSC Params if no Stream on Link

MEDIUM

5.5

CVSS Score

Published: October 21, 2024 at 11:53 AM UTC

Updated: June 17, 2026 at 07:57 AM UTC

1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Skip Recompute DSC Params if no Stream on Link [why] Encounter NULL pointer dereference uner mst + dsc setup. BUG: kernel NULL pointer dereference, address: 0000000000000008 PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 4 PID: 917 Comm: sway Not tainted 6.3.9-arch1-1 #1 124dc55df4f5272ccb409f39ef4872fc2b3376a2 Hardware name: LENOVO 20NKS01Y00/20NKS01Y00, BIOS R12ET61W(1.31 ) 07/28/2022 RIP: 0010:drm_dp_atomic_find_time_slots+0x5e/0x260 [drm_display_helper] Code: 01 00 00 48 8b 85 60 05 00 00 48 63 80 88 00 00 00 3b 43 28 0f 8d 2e 01 00 00 48 8b 53 30 48 8d 04 80 48 8d 04 c2 48 8b 40 18 <48> 8> RSP: 0018:ffff960cc2df77d8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8afb87e81280 RCX: 0000000000000224 RDX: ffff8afb9ee37c00 RSI: ffff8afb8da1a578 RDI: ffff8afb87e81280 RBP: ffff8afb83d67000 R08: 0000000000000001 R09: ffff8afb9652f850 R10: ffff960cc2df7908 R11: 0000000000000002 R12: 0000000000000000 R13: ffff8afb8d7688a0 R14: ffff8afb8da1a578 R15: 0000000000000224 FS: 00007f4dac35ce00(0000) GS:ffff8afe30b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 000000010ddc6000 CR4: 00000000003506e0 Call Trace: <TASK> ? __die+0x23/0x70 ? page_fault_oops+0x171/0x4e0 ? plist_add+0xbe/0x100 ? exc_page_fault+0x7c/0x180 ? asm_exc_page_fault+0x26/0x30 ? drm_dp_atomic_find_time_slots+0x5e/0x260 [drm_display_helper 0e67723696438d8e02b741593dd50d80b44c2026] ? drm_dp_atomic_find_time_slots+0x28/0x260 [drm_display_helper 0e67723696438d8e02b741593dd50d80b44c2026] compute_mst_dsc_configs_for_link+0x2ff/0xa40 [amdgpu 62e600d2a75e9158e1cd0a243bdc8e6da040c054] ? fill_plane_buffer_attributes+0x419/0x510 [amdgpu 62e600d2a75e9158e1cd0a243bdc8e6da040c054] compute_mst_dsc_configs_for_state+0x1e1/0x250 [amdgpu 62e600d2a75e9158e1cd0a243bdc8e6da040c054] amdgpu_dm_atomic_check+0xecd/0x1190 [amdgpu 62e600d2a75e9158e1cd0a243bdc8e6da040c054] drm_atomic_check_only+0x5c5/0xa40 drm_mode_atomic_ioctl+0x76e/0xbc0 [how] dsc recompute should be skipped if no mode change detected on the new request. If detected, keep checking whether the stream is already on current state or not.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v < 6.1.1054.15 ≤ v < 6.1.1054.15 ≤ v < 6.1.1134.15 ≤ v < 6.10.54.15 ≤ v < 6.114.15 ≤ v < 6.6.466.11 ≤ v < 6.11.26.2 ≤ v < 6.6.466.7 ≤ v < 6.10.56.1.105 < v < 6.1.1136.10.5 < v < 6.10.136.6.46 < v < 6.6.544.154562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c

Vendor states this is fixed in 282f0a482ee61d5e863512f3c4fcec90216c20d9 (fixed)

Vendor states this is fixed in 50e376f1fe3bf571d0645ddf48ad37eb58323919 (fixed)

Vendor states this is fixed in 70275bb960c71d313254473d38c14e7101cee5ad (fixed)

Vendor states this is fixed in 718d83f66fb07b2cab89a1fc984613a00e3db18f (fixed)

Vendor states this is fixed in 7c887efda1201110211fed8921a92a713e0b6bcd (fixed)

Vendor states this is fixed in 4.15 (unaffected)

Vendor states this is fixed in 6.1.105 (unaffected)

Vendor states this is fixed in 6.1.113 (unaffected)

Affected range stops below 6.10.13, so it looks safe — our inference, not a vendor statement

Vendor states this is fixed in 6.10.5 (unaffected)

Vendor states this is fixed in 6.11 (unaffected)

Affected range stops below 6.11.2, so it looks safe — our inference, not a vendor statement