ghsa-59fp-j85q-63j4
Vulnerability from github
Published
2024-09-04 21:30
Modified
2024-10-10 18:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

drm/msm/dpu: cleanup FB if dpu_format_populate_layout fails

If the dpu_format_populate_layout() fails, then FB is prepared, but not cleaned up. This ends up leaking the pin_count on the GEM object and causes a splat during DRM file closure:

msm_obj->pin_count WARNING: CPU: 2 PID: 569 at drivers/gpu/drm/msm/msm_gem.c:121 update_lru_locked+0xc4/0xcc [...] Call trace: update_lru_locked+0xc4/0xcc put_pages+0xac/0x100 msm_gem_free_object+0x138/0x180 drm_gem_object_free+0x1c/0x30 drm_gem_object_handle_put_unlocked+0x108/0x10c drm_gem_object_release_handle+0x58/0x70 idr_for_each+0x68/0xec drm_gem_release+0x28/0x40 drm_file_free+0x174/0x234 drm_release+0xb0/0x160 __fput+0xc0/0x2c8 __fput_sync+0x50/0x5c __arm64_sys_close+0x38/0x7c invoke_syscall+0x48/0x118 el0_svc_common.constprop.0+0x40/0xe0 do_el0_svc+0x1c/0x28 el0_svc+0x4c/0x120 el0t_64_sync_handler+0x100/0x12c el0t_64_sync+0x190/0x194 irq event stamp: 129818 hardirqs last enabled at (129817): [] console_unlock+0x118/0x124 hardirqs last disabled at (129818): [] el1_dbg+0x24/0x8c softirqs last enabled at (129808): [] handle_softirqs+0x4c8/0x4e8 softirqs last disabled at (129785): [] __do_softirq+0x14/0x20

Patchwork: https://patchwork.freedesktop.org/patch/600714/

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{
   affected: [],
   aliases: [
      "CVE-2024-44982",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-459",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-09-04T20:15:07Z",
      severity: "MODERATE",
   },
   details: "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/dpu: cleanup FB if dpu_format_populate_layout fails\n\nIf the dpu_format_populate_layout() fails, then FB is prepared, but not\ncleaned up. This ends up leaking the pin_count on the GEM object and\ncauses a splat during DRM file closure:\n\nmsm_obj->pin_count\nWARNING: CPU: 2 PID: 569 at drivers/gpu/drm/msm/msm_gem.c:121 update_lru_locked+0xc4/0xcc\n[...]\nCall trace:\n update_lru_locked+0xc4/0xcc\n put_pages+0xac/0x100\n msm_gem_free_object+0x138/0x180\n drm_gem_object_free+0x1c/0x30\n drm_gem_object_handle_put_unlocked+0x108/0x10c\n drm_gem_object_release_handle+0x58/0x70\n idr_for_each+0x68/0xec\n drm_gem_release+0x28/0x40\n drm_file_free+0x174/0x234\n drm_release+0xb0/0x160\n __fput+0xc0/0x2c8\n __fput_sync+0x50/0x5c\n __arm64_sys_close+0x38/0x7c\n invoke_syscall+0x48/0x118\n el0_svc_common.constprop.0+0x40/0xe0\n do_el0_svc+0x1c/0x28\n el0_svc+0x4c/0x120\n el0t_64_sync_handler+0x100/0x12c\n el0t_64_sync+0x190/0x194\nirq event stamp: 129818\nhardirqs last  enabled at (129817): [<ffffa5f6d953fcc0>] console_unlock+0x118/0x124\nhardirqs last disabled at (129818): [<ffffa5f6da7dcf04>] el1_dbg+0x24/0x8c\nsoftirqs last  enabled at (129808): [<ffffa5f6d94afc18>] handle_softirqs+0x4c8/0x4e8\nsoftirqs last disabled at (129785): [<ffffa5f6d94105e4>] __do_softirq+0x14/0x20\n\nPatchwork: https://patchwork.freedesktop.org/patch/600714/",
   id: "GHSA-59fp-j85q-63j4",
   modified: "2024-10-10T18:31:08Z",
   published: "2024-09-04T21:30:32Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2024-44982",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/02193c70723118889281f75b88722b26b58bf4ae",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/7ecf85542169012765e4c2817cd3be6c2e009962",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/9b8b65211a880af8fe8330a101e1e239a2d4008f",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/a3c5815b07f4ee19d0b7e2ddf91ff9f03ecbf27d",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/bfa1a6283be390947d3649c482e5167186a37016",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
         type: "CVSS_V3",
      },
   ],
}


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