fkie_cve-2022-50068
Vulnerability from fkie_nvd
Published
2025-06-18 11:15
Modified
2025-06-18 13:47
Severity ?
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---
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/76672cd326c146ded2c2712ff257b8908dcf23d8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9bd970d4097287778a4449452e70b35d0bfaa3aa
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cf4b7387c0a842d64bdd7c353e6d3298174a7740
Impacted products
Vendor Product Version


To clipboard 

{
  "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": "2025-06-18T13:47:40.833",
  "metrics": {},
  "published": "2025-06-18T11:15:35.620",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/76672cd326c146ded2c2712ff257b8908dcf23d8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9bd970d4097287778a4449452e70b35d0bfaa3aa"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cf4b7387c0a842d64bdd7c353e6d3298174a7740"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.