{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Skip Recompute DSC Params if no Stream on Link\n\n[why]\nEncounter NULL pointer dereference uner mst + dsc setup.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000008\n    PGD 0 P4D 0\n    Oops: 0000 [#1] PREEMPT SMP NOPTI\n    CPU: 4 PID: 917 Comm: sway Not tainted 6.3.9-arch1-1 #1 124dc55df4f5272ccb409f39ef4872fc2b3376a2\n    Hardware name: LENOVO 20NKS01Y00/20NKS01Y00, BIOS R12ET61W(1.31 ) 07/28/2022\n    RIP: 0010:drm_dp_atomic_find_time_slots+0x5e/0x260 [drm_display_helper]\n    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>\n    RSP: 0018:ffff960cc2df77d8 EFLAGS: 00010293\n    RAX: 0000000000000000 RBX: ffff8afb87e81280 RCX: 0000000000000224\n    RDX: ffff8afb9ee37c00 RSI: ffff8afb8da1a578 RDI: ffff8afb87e81280\n    RBP: ffff8afb83d67000 R08: 0000000000000001 R09: ffff8afb9652f850\n    R10: ffff960cc2df7908 R11: 0000000000000002 R12: 0000000000000000\n    R13: ffff8afb8d7688a0 R14: ffff8afb8da1a578 R15: 0000000000000224\n    FS:  00007f4dac35ce00(0000) GS:ffff8afe30b00000(0000) knlGS:0000000000000000\n    CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n    CR2: 0000000000000008 CR3: 000000010ddc6000 CR4: 00000000003506e0\n    Call Trace:\n<TASK>\n     ? __die+0x23/0x70\n     ? page_fault_oops+0x171/0x4e0\n     ? plist_add+0xbe/0x100\n     ? exc_page_fault+0x7c/0x180\n     ? asm_exc_page_fault+0x26/0x30\n     ? drm_dp_atomic_find_time_slots+0x5e/0x260 [drm_display_helper 0e67723696438d8e02b741593dd50d80b44c2026]\n     ? drm_dp_atomic_find_time_slots+0x28/0x260 [drm_display_helper 0e67723696438d8e02b741593dd50d80b44c2026]\n     compute_mst_dsc_configs_for_link+0x2ff/0xa40 [amdgpu 62e600d2a75e9158e1cd0a243bdc8e6da040c054]\n     ? fill_plane_buffer_attributes+0x419/0x510 [amdgpu 62e600d2a75e9158e1cd0a243bdc8e6da040c054]\n     compute_mst_dsc_configs_for_state+0x1e1/0x250 [amdgpu 62e600d2a75e9158e1cd0a243bdc8e6da040c054]\n     amdgpu_dm_atomic_check+0xecd/0x1190 [amdgpu 62e600d2a75e9158e1cd0a243bdc8e6da040c054]\n     drm_atomic_check_only+0x5c5/0xa40\n     drm_mode_atomic_ioctl+0x76e/0xbc0\n\n[how]\ndsc recompute should be skipped if no mode change detected on the new\nrequest. If detected, keep checking whether the stream is already on\ncurrent state or not."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c"
               ],
               "versions": [
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "282f0a482ee6",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "7c887efda120",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "718d83f66fb0",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "a53841b074cc",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "70275bb960c7",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "6f9c39e81693",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "d45c64d93358",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "8151a6c13111",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c"
               ],
               "versions": [
                  {
                     "version": "6.1.105",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.113",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.46",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.54",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.5",
                     "lessThanOrEqual": "6.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.13",
                     "lessThanOrEqual": "6.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.11.2",
                     "lessThanOrEqual": "6.11.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.12-rc1",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/282f0a482ee61d5e863512f3c4fcec90216c20d9"
            },
            {
               "url": "https://git.kernel.org/stable/c/7c887efda1201110211fed8921a92a713e0b6bcd"
            },
            {
               "url": "https://git.kernel.org/stable/c/718d83f66fb07b2cab89a1fc984613a00e3db18f"
            },
            {
               "url": "https://git.kernel.org/stable/c/a53841b074cc196c3caaa37e1f15d6bc90943b97"
            },
            {
               "url": "https://git.kernel.org/stable/c/70275bb960c71d313254473d38c14e7101cee5ad"
            },
            {
               "url": "https://git.kernel.org/stable/c/6f9c39e8169384d2a5ca9bf323a0c1b81b3d0f3a"
            },
            {
               "url": "https://git.kernel.org/stable/c/d45c64d933586d409d3f1e0ecaca4da494b1d9c6"
            },
            {
               "url": "https://git.kernel.org/stable/c/8151a6c13111b465dbabe07c19f572f7cbd16fef"
            }
         ],
         "title": "drm/amd/display: Skip Recompute DSC Params if no Stream on Link",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-47683",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}