GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2022-50068 (GCVE-0-2022-50068)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:02 – Updated: 2026-05-11 19:12
VLAI
Title
drm/ttm: Fix dummy res NULL ptr deref bug
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Fix dummy res NULL ptr deref bug Check the bo->resource value before accessing the resource mem_type. v2: Fix commit description unwrapped warning <log snip> [ 40.191227][ T184] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] SMP KASAN PTI [ 40.192995][ T184] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 40.194411][ T184] CPU: 1 PID: 184 Comm: systemd-udevd Not tainted 5.19.0-rc4-00721-gb297c22b7070 #1 [ 40.196063][ T184] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-4 04/01/2014 [ 40.199605][ T184] RIP: 0010:ttm_bo_validate+0x1b3/0x240 [ttm] [ 40.200754][ T184] Code: e8 72 c5 ff ff 83 f8 b8 74 d4 85 c0 75 54 49 8b 9e 58 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 10 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 04 3c 03 7e 44 8b 53 10 31 c0 85 d2 0f 85 58 [ 40.203685][ T184] RSP: 0018:ffffc900006df0c8 EFLAGS: 00010202 [ 40.204630][ T184] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1102f4bb71b [ 40.205864][ T184] RDX: 0000000000000002 RSI: ffffc900006df208 RDI: 0000000000000010 [ 40.207102][ T184] RBP: 1ffff920000dbe1a R08: ffffc900006df208 R09: 0000000000000000 [ 40.208394][ T184] R10: ffff88817a5f0000 R11: 0000000000000001 R12: ffffc900006df110 [ 40.209692][ T184] R13: ffffc900006df0f0 R14: ffff88817a5db800 R15: ffffc900006df208 [ 40.210862][ T184] FS: 00007f6b1d16e8c0(0000) GS:ffff88839d700000(0000) knlGS:0000000000000000 [ 40.212250][ T184] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.213275][ T184] CR2: 000055a1001d4ff0 CR3: 00000001700f4000 CR4: 00000000000006e0 [ 40.214469][ T184] Call Trace: [ 40.214974][ T184] <TASK> [ 40.215438][ T184] ? ttm_bo_bounce_temp_buffer+0x140/0x140 [ttm] [ 40.216572][ T184] ? mutex_spin_on_owner+0x240/0x240 [ 40.217456][ T184] ? drm_vma_offset_add+0xaa/0x100 [drm] [ 40.218457][ T184] ttm_bo_init_reserved+0x3d6/0x540 [ttm] [ 40.219410][ T184] ? shmem_get_inode+0x744/0x980 [ 40.220231][ T184] ttm_bo_init_validate+0xb1/0x200 [ttm] [ 40.221172][ T184] ? bo_driver_evict_flags+0x340/0x340 [drm_vram_helper] [ 40.222530][ T184] ? ttm_bo_init_reserved+0x540/0x540 [ttm] [ 40.223643][ T184] ? __do_sys_finit_module+0x11a/0x1c0 [ 40.224654][ T184] ? __shmem_file_setup+0x102/0x280 [ 40.234764][ T184] drm_gem_vram_create+0x305/0x480 [drm_vram_helper] [ 40.235766][ T184] ? bo_driver_evict_flags+0x340/0x340 [drm_vram_helper] [ 40.236846][ T184] ? __kasan_slab_free+0x108/0x180 [ 40.237650][ T184] drm_gem_vram_fill_create_dumb+0x134/0x340 [drm_vram_helper] [ 40.238864][ T184] ? local_pci_probe+0xdf/0x180 [ 40.239674][ T184] ? drmm_vram_helper_init+0x400/0x400 [drm_vram_helper] [ 40.240826][ T184] drm_client_framebuffer_create+0x19c/0x400 [drm] [ 40.241955][ T184] ? drm_client_buffer_delete+0x200/0x200 [drm] [ 40.243001][ T184] ? drm_client_pick_crtcs+0x554/0xb80 [drm] [ 40.244030][ T184] drm_fb_helper_generic_probe+0x23f/0x940 [drm_kms_helper] [ 40.245226][ T184] ? __cond_resched+0x1c/0xc0 [ 40.245987][ T184] ? drm_fb_helper_memory_range_to_clip+0x180/0x180 [drm_kms_helper] [ 40.247316][ T184] ? mutex_unlock+0x80/0x100 [ 40.248005][ T184] ? __mutex_unlock_slowpath+0x2c0/0x2c0 [ 40.249083][ T184] drm_fb_helper_single_fb_probe+0x907/0xf00 [drm_kms_helper] [ 40.250314][ T184] ? drm_fb_helper_check_var+0x1180/0x1180 [drm_kms_helper] [ 40.251540][ T184] ? __cond_resched+0x1c/0xc0 [ 40.252321][ T184] ? mutex_lock+0x9f/0x100 [ 40.253062][ T184] __drm_fb_helper_initial_config_and_unlock+0xb9/0x2c0 [drm_kms_helper] [ 40.254394][ T184] drm_fbdev_client_hotplug+0x56f/0x840 [drm_kms_helper] [ 40.255477][ T184] drm_fbdev_generic_setup+0x165/0x3c0 [drm_kms_helper] [ 40.256607][ T184] bochs_pci_probe+0x6b7/0x900 [bochs] [ ---truncated---
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d3116756a710e3cd51293a9d58b525957ab7e784 , < 76672cd326c146ded2c2712ff257b8908dcf23d8 (git)
Affected: d3116756a710e3cd51293a9d58b525957ab7e784 , < 9bd970d4097287778a4449452e70b35d0bfaa3aa (git)
Affected: d3116756a710e3cd51293a9d58b525957ab7e784 , < cf4b7387c0a842d64bdd7c353e6d3298174a7740 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 5.15.63 , ≤ 5.15.* (semver)
Unaffected: 5.19.4 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/ttm/ttm_bo.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "76672cd326c146ded2c2712ff257b8908dcf23d8",
              "status": "affected",
              "version": "d3116756a710e3cd51293a9d58b525957ab7e784",
              "versionType": "git"
            },
            {
              "lessThan": "9bd970d4097287778a4449452e70b35d0bfaa3aa",
              "status": "affected",
              "version": "d3116756a710e3cd51293a9d58b525957ab7e784",
              "versionType": "git"
            },
            {
              "lessThan": "cf4b7387c0a842d64bdd7c353e6d3298174a7740",
              "status": "affected",
              "version": "d3116756a710e3cd51293a9d58b525957ab7e784",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/ttm/ttm_bo.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.14"
            },
            {
              "lessThan": "5.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.63",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.63",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.4",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/ttm: Fix dummy res NULL ptr deref bug\n\nCheck the bo-\u003eresource value before accessing the resource\nmem_type.\n\nv2: Fix commit description unwrapped warning\n\n\u003clog snip\u003e\n[   40.191227][  T184] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] SMP KASAN PTI\n[   40.192995][  T184] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]\n[   40.194411][  T184] CPU: 1 PID: 184 Comm: systemd-udevd Not tainted 5.19.0-rc4-00721-gb297c22b7070 #1\n[   40.196063][  T184] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-4 04/01/2014\n[   40.199605][  T184] RIP: 0010:ttm_bo_validate+0x1b3/0x240 [ttm]\n[   40.200754][  T184] Code: e8 72 c5 ff ff 83 f8 b8 74 d4 85 c0 75 54 49 8b 9e 58 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 10 48 89 fa 48 c1 ea 03 \u003c0f\u003e b6 04 02 84 c0 74 04 3c 03 7e 44 8b 53 10 31 c0 85 d2 0f 85 58\n[   40.203685][  T184] RSP: 0018:ffffc900006df0c8 EFLAGS: 00010202\n[   40.204630][  T184] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1102f4bb71b\n[   40.205864][  T184] RDX: 0000000000000002 RSI: ffffc900006df208 RDI: 0000000000000010\n[   40.207102][  T184] RBP: 1ffff920000dbe1a R08: ffffc900006df208 R09: 0000000000000000\n[   40.208394][  T184] R10: ffff88817a5f0000 R11: 0000000000000001 R12: ffffc900006df110\n[   40.209692][  T184] R13: ffffc900006df0f0 R14: ffff88817a5db800 R15: ffffc900006df208\n[   40.210862][  T184] FS:  00007f6b1d16e8c0(0000) GS:ffff88839d700000(0000) knlGS:0000000000000000\n[   40.212250][  T184] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   40.213275][  T184] CR2: 000055a1001d4ff0 CR3: 00000001700f4000 CR4: 00000000000006e0\n[   40.214469][  T184] Call Trace:\n[   40.214974][  T184]  \u003cTASK\u003e\n[   40.215438][  T184]  ? ttm_bo_bounce_temp_buffer+0x140/0x140 [ttm]\n[   40.216572][  T184]  ? mutex_spin_on_owner+0x240/0x240\n[   40.217456][  T184]  ? drm_vma_offset_add+0xaa/0x100 [drm]\n[   40.218457][  T184]  ttm_bo_init_reserved+0x3d6/0x540 [ttm]\n[   40.219410][  T184]  ? shmem_get_inode+0x744/0x980\n[   40.220231][  T184]  ttm_bo_init_validate+0xb1/0x200 [ttm]\n[   40.221172][  T184]  ? bo_driver_evict_flags+0x340/0x340 [drm_vram_helper]\n[   40.222530][  T184]  ? ttm_bo_init_reserved+0x540/0x540 [ttm]\n[   40.223643][  T184]  ? __do_sys_finit_module+0x11a/0x1c0\n[   40.224654][  T184]  ? __shmem_file_setup+0x102/0x280\n[   40.234764][  T184]  drm_gem_vram_create+0x305/0x480 [drm_vram_helper]\n[   40.235766][  T184]  ? bo_driver_evict_flags+0x340/0x340 [drm_vram_helper]\n[   40.236846][  T184]  ? __kasan_slab_free+0x108/0x180\n[   40.237650][  T184]  drm_gem_vram_fill_create_dumb+0x134/0x340 [drm_vram_helper]\n[   40.238864][  T184]  ? local_pci_probe+0xdf/0x180\n[   40.239674][  T184]  ? drmm_vram_helper_init+0x400/0x400 [drm_vram_helper]\n[   40.240826][  T184]  drm_client_framebuffer_create+0x19c/0x400 [drm]\n[   40.241955][  T184]  ? drm_client_buffer_delete+0x200/0x200 [drm]\n[   40.243001][  T184]  ? drm_client_pick_crtcs+0x554/0xb80 [drm]\n[   40.244030][  T184]  drm_fb_helper_generic_probe+0x23f/0x940 [drm_kms_helper]\n[   40.245226][  T184]  ? __cond_resched+0x1c/0xc0\n[   40.245987][  T184]  ? drm_fb_helper_memory_range_to_clip+0x180/0x180 [drm_kms_helper]\n[   40.247316][  T184]  ? mutex_unlock+0x80/0x100\n[   40.248005][  T184]  ? __mutex_unlock_slowpath+0x2c0/0x2c0\n[   40.249083][  T184]  drm_fb_helper_single_fb_probe+0x907/0xf00 [drm_kms_helper]\n[   40.250314][  T184]  ? drm_fb_helper_check_var+0x1180/0x1180 [drm_kms_helper]\n[   40.251540][  T184]  ? __cond_resched+0x1c/0xc0\n[   40.252321][  T184]  ? mutex_lock+0x9f/0x100\n[   40.253062][  T184]  __drm_fb_helper_initial_config_and_unlock+0xb9/0x2c0 [drm_kms_helper]\n[   40.254394][  T184]  drm_fbdev_client_hotplug+0x56f/0x840 [drm_kms_helper]\n[   40.255477][  T184]  drm_fbdev_generic_setup+0x165/0x3c0 [drm_kms_helper]\n[   40.256607][  T184]  bochs_pci_probe+0x6b7/0x900 [bochs]\n[   \n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:12:14.682Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/76672cd326c146ded2c2712ff257b8908dcf23d8"
        },
        {
          "url": "https://git.kernel.org/stable/c/9bd970d4097287778a4449452e70b35d0bfaa3aa"
        },
        {
          "url": "https://git.kernel.org/stable/c/cf4b7387c0a842d64bdd7c353e6d3298174a7740"
        }
      ],
      "title": "drm/ttm: Fix dummy res NULL ptr deref bug",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50068",
    "datePublished": "2025-06-18T11:02:13.760Z",
    "dateReserved": "2025-06-18T10:57:27.405Z",
    "dateUpdated": "2026-05-11T19:12:14.682Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-50068",
      "date": "2026-09-19",
      "epss": "0.00237",
      "percentile": "0.15029"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/gpu/drm/ttm/ttm_bo.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "76672cd326c146ded2c2712ff257b8908dcf23d8",
                    "status": "affected",
                    "version": "d3116756a710e3cd51293a9d58b525957ab7e784",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "9bd970d4097287778a4449452e70b35d0bfaa3aa",
                    "status": "affected",
                    "version": "d3116756a710e3cd51293a9d58b525957ab7e784",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "cf4b7387c0a842d64bdd7c353e6d3298174a7740",
                    "status": "affected",
                    "version": "d3116756a710e3cd51293a9d58b525957ab7e784",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/gpu/drm/ttm/ttm_bo.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.14"
                  },
                  {
                    "lessThan": "5.14",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.63",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.19.*",
                    "status": "unaffected",
                    "version": "5.19.4",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.0",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "185EE6AF-BD8F-4E95-80BC-9322B04CC91B",
                    "versionEndExcluding": "5.15.63",
                    "versionStartIncluding": "5.14",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0E669300-DA42-4ACD-86D8-68BE5F29FB88",
                    "versionEndExcluding": "5.19.4",
                    "versionStartIncluding": "5.16",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "E8BD11A3-8643-49B6-BADE-5029A0117325",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/ttm: Fix dummy res NULL ptr deref bug\n\nCheck the bo-\u003eresource value before accessing the resource\nmem_type.\n\nv2: Fix commit description unwrapped warning\n\n\u003clog snip\u003e\n[   40.191227][  T184] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] SMP KASAN PTI\n[   40.192995][  T184] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]\n[   40.194411][  T184] CPU: 1 PID: 184 Comm: systemd-udevd Not tainted 5.19.0-rc4-00721-gb297c22b7070 #1\n[   40.196063][  T184] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-4 04/01/2014\n[   40.199605][  T184] RIP: 0010:ttm_bo_validate+0x1b3/0x240 [ttm]\n[   40.200754][  T184] Code: e8 72 c5 ff ff 83 f8 b8 74 d4 85 c0 75 54 49 8b 9e 58 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 10 48 89 fa 48 c1 ea 03 \u003c0f\u003e b6 04 02 84 c0 74 04 3c 03 7e 44 8b 53 10 31 c0 85 d2 0f 85 58\n[   40.203685][  T184] RSP: 0018:ffffc900006df0c8 EFLAGS: 00010202\n[   40.204630][  T184] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1102f4bb71b\n[   40.205864][  T184] RDX: 0000000000000002 RSI: ffffc900006df208 RDI: 0000000000000010\n[   40.207102][  T184] RBP: 1ffff920000dbe1a R08: ffffc900006df208 R09: 0000000000000000\n[   40.208394][  T184] R10: ffff88817a5f0000 R11: 0000000000000001 R12: ffffc900006df110\n[   40.209692][  T184] R13: ffffc900006df0f0 R14: ffff88817a5db800 R15: ffffc900006df208\n[   40.210862][  T184] FS:  00007f6b1d16e8c0(0000) GS:ffff88839d700000(0000) knlGS:0000000000000000\n[   40.212250][  T184] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   40.213275][  T184] CR2: 000055a1001d4ff0 CR3: 00000001700f4000 CR4: 00000000000006e0\n[   40.214469][  T184] Call Trace:\n[   40.214974][  T184]  \u003cTASK\u003e\n[   40.215438][  T184]  ? ttm_bo_bounce_temp_buffer+0x140/0x140 [ttm]\n[   40.216572][  T184]  ? mutex_spin_on_owner+0x240/0x240\n[   40.217456][  T184]  ? drm_vma_offset_add+0xaa/0x100 [drm]\n[   40.218457][  T184]  ttm_bo_init_reserved+0x3d6/0x540 [ttm]\n[   40.219410][  T184]  ? shmem_get_inode+0x744/0x980\n[   40.220231][  T184]  ttm_bo_init_validate+0xb1/0x200 [ttm]\n[   40.221172][  T184]  ? bo_driver_evict_flags+0x340/0x340 [drm_vram_helper]\n[   40.222530][  T184]  ? ttm_bo_init_reserved+0x540/0x540 [ttm]\n[   40.223643][  T184]  ? __do_sys_finit_module+0x11a/0x1c0\n[   40.224654][  T184]  ? __shmem_file_setup+0x102/0x280\n[   40.234764][  T184]  drm_gem_vram_create+0x305/0x480 [drm_vram_helper]\n[   40.235766][  T184]  ? bo_driver_evict_flags+0x340/0x340 [drm_vram_helper]\n[   40.236846][  T184]  ? __kasan_slab_free+0x108/0x180\n[   40.237650][  T184]  drm_gem_vram_fill_create_dumb+0x134/0x340 [drm_vram_helper]\n[   40.238864][  T184]  ? local_pci_probe+0xdf/0x180\n[   40.239674][  T184]  ? drmm_vram_helper_init+0x400/0x400 [drm_vram_helper]\n[   40.240826][  T184]  drm_client_framebuffer_create+0x19c/0x400 [drm]\n[   40.241955][  T184]  ? drm_client_buffer_delete+0x200/0x200 [drm]\n[   40.243001][  T184]  ? drm_client_pick_crtcs+0x554/0xb80 [drm]\n[   40.244030][  T184]  drm_fb_helper_generic_probe+0x23f/0x940 [drm_kms_helper]\n[   40.245226][  T184]  ? __cond_resched+0x1c/0xc0\n[   40.245987][  T184]  ? drm_fb_helper_memory_range_to_clip+0x180/0x180 [drm_kms_helper]\n[   40.247316][  T184]  ? mutex_unlock+0x80/0x100\n[   40.248005][  T184]  ? __mutex_unlock_slowpath+0x2c0/0x2c0\n[   40.249083][  T184]  drm_fb_helper_single_fb_probe+0x907/0xf00 [drm_kms_helper]\n[   40.250314][  T184]  ? drm_fb_helper_check_var+0x1180/0x1180 [drm_kms_helper]\n[   40.251540][  T184]  ? __cond_resched+0x1c/0xc0\n[   40.252321][  T184]  ? mutex_lock+0x9f/0x100\n[   40.253062][  T184]  __drm_fb_helper_initial_config_and_unlock+0xb9/0x2c0 [drm_kms_helper]\n[   40.254394][  T184]  drm_fbdev_client_hotplug+0x56f/0x840 [drm_kms_helper]\n[   40.255477][  T184]  drm_fbdev_generic_setup+0x165/0x3c0 [drm_kms_helper]\n[   40.256607][  T184]  bochs_pci_probe+0x6b7/0x900 [bochs]\n[   \n---truncated---"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/ttm: Se corrige el error de deref de resoluci\u00f3n ficticia NULL ptr. Verifique el valor de bo-\u0026gt;resource antes de acceder al recurso mem_type. v2: Se corrige la advertencia de descripci\u00f3n de confirmaci\u00f3n sin envolver  [ 40.191227][ T184] Fallo de protecci\u00f3n general, probablemente para la direcci\u00f3n no can\u00f3nica 0xdffffc0000000002: 0000 [#1] SMP KASAN PTI [ 40.192995][ T184] KASAN: null-ptr-deref en el rango [0x0000000000000010-0x0000000000000017] [ 40.194411][ T184] CPU: 1 PID: 184 Comm: systemd-udevd No contaminado 5.19.0-rc4-00721-gb297c22b7070 #1 [ 40.196063][ T184] Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-4 01/04/2014 [ 40.199605][ T184] RIP: 0010:ttm_bo_validate+0x1b3/0x240 [ttm] [ 40.200754][ T184] C\u00f3digo: e8 72 c5 ff ff 83 f8 b8 74 d4 85 c0 75 54 49 8b 9e 58 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 10 48 89 fa 48 c1 ea 03 \u0026lt;0f\u0026gt; b6 04 02 84 c0 74 04 3c 03 7e 44 8b 53 10 31 c0 85 d2 0f 85 58 [ 40.203685][ T184] RSP: 0018:ffffc900006df0c8 EFLAGS: 00010202 [ 40.204630][ T184] RAX: dffffc0000000000 RBX: 00000000000000000 RCX: 1ffff1102f4bb71b [ 40.205864][ T184] RDX: 00000000000000002 RSI: ffffc900006df208 I+D+i: 0000000000000010 [ 40.207102][ T184] RBP: 1ffff920000dbe1a R08: ffffc900006df208 R09: 0000000000000000 [ 40.208394][ T184] R10: ffff88817a5f0000 R11: 0000000000000001 R12: ffffc900006df110 [ 40.209692][ T184] R13: ffffc900006df0f0 R14: ffff88817a5db800 R15: ffffc900006df208 [ 40.210862][ T184] FS: 00007f6b1d16e8c0(0000) GS:ffff88839d700000(0000) knlGS:0000000000000000 [ 40.212250][ T184] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.213275][ T184] CR2: 000055a1001d4ff0 CR3: 00000001700f4000 CR4: 00000000000006e0 [ 40.214469][ T184] Rastreo de llamadas: [ 40.214974][ T184]  [ 40.215438][ T184] ? ttm_bo_bounce_temp_buffer+0x140/0x140 [ttm] [ 40.216572][ T184] ? mutex_spin_on_owner+0x240/0x240 [ 40.217456][ T184] ? drm_vma_offset_add+0xaa/0x100 [drm] [ 40.218457][ T184] ttm_bo_init_reserved+0x3d6/0x540 [ttm] [ 40.219410][ T184] ? shmem_get_inode+0x744/0x980 [ 40.220231][ T184] ttm_bo_init_validate+0xb1/0x200 [ttm] [ 40.221172][ T184] ? bo_driver_evict_flags+0x340/0x340 [drm_vram_helper] [ 40.222530][ T184] ? ttm_bo_init_reserved+0x540/0x540 [ttm] [ 40.223643][ T184] ? __do_sys_finit_module+0x11a/0x1c0 [ 40.224654][ T184] ? __shmem_file_setup+0x102/0x280 [ 40.234764][ T184] drm_gem_vram_create+0x305/0x480 [drm_vram_helper] [ 40.235766][ T184] ? bo_driver_evict_flags+0x340/0x340 [drm_vram_helper] [ 40.236846][ T184] ? __kasan_slab_free+0x108/0x180 [ 40.237650][ T184] drm_gem_vram_fill_create_dumb+0x134/0x340 [drm_vram_helper] [ 40.238864][ T184] ? local_pci_probe+0xdf/0x180 [ 40.239674][ T184] ? drmm_vram_helper_init+0x400/0x400 [drm_vram_helper] [ 40.240826][ T184] drm_client_framebuffer_create+0x19c/0x400 [drm] [ 40.241955][ T184] ? drm_client_buffer_delete+0x200/0x200 [drm] [ 40.243001][ T184] ? drm_client_pick_crtcs+0x554/0xb80 [drm] [ 40.244030][ T184] drm_fb_helper_generic_probe+0x23f/0x940 [drm_kms_helper] [ 40.245226][ T184] ? __cond_resched+0x1c/0xc0 [ 40.245987][ T184] ? drm_fb_helper_memory_range_to_clip+0x180/0x180 [drm_kms_helper] [ 40.247316][ T184] ? mutex_unlock+0x80/0x100 [ 40.248005][ T184] ? __mutex_unlock_slowpath+0x2c0/0x2c0 [ 40.249083][ T184] drm_fb_helper_single_fb_probe+0x907/0xf00 [drm_kms_helper] [ 40.250314][ T184] ? drm_fb_helper_check_var+0x1180/0x1180 [drm_kms_helper] [ 40.251540][ T184] ? __cond_resched+0x1c/0xc0 [ 40.252321][ T184] ? mutex_lock+0x9f/0x100 [ 40.253062][ T184] __drm_fb_helper_initial_config_and_unlock+0xb9/0x2c0 [drm_kms_helper] [ 40.254394][ T184] drm_fbdev_client_hotplug+0x56f/0x840 [drm_kms_helper] [ 40.255477][ T184] drm_fbdev_generic_setup+0x165/0x3c0 [drm_kms_helper] [ 40.256607][ T184] bochs_pci_probe+0x6b7/0x900 [bochs] [ ---truncado---"
          }
        ],
        "id": "CVE-2022-50068",
        "lastModified": "2026-06-17T05:22:41.480",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-06-18T11:15:35.620",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/76672cd326c146ded2c2712ff257b8908dcf23d8"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/9bd970d4097287778a4449452e70b35d0bfaa3aa"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/cf4b7387c0a842d64bdd7c353e6d3298174a7740"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T21:38:52+00:00",
      "cve": "CVE-2022-50068",
      "id": "CVE-2022-50068",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "321",
      "product_status:known_affected": "80",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/ttm: Fix dummy res NULL ptr deref bug",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50068.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T16:52:00Z",
      "cve": "CVE-2022-50068",
      "id": "CVE-2022-50068",
      "initial_release_date": "2025-06-19T03:42:42Z",
      "product_status:known_affected": "344",
      "product_status:known_not_affected": "404",
      "product_status:recommended": "253",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-50068",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-50068.json",
      "version": "46"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…