{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-46798",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-46798"
  ],
  "published": "2024-09-18T07:17:19Z",
  "summary": "ASoC: dapm: Fix UAF for snd_soc_pcm_runtime object",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: dapm: Fix UAF for snd_soc_pcm_runtime object\n\nWhen using kernel with the following extra config,\n\n  - CONFIG_KASAN=y\n  - CONFIG_KASAN_GENERIC=y\n  - CONFIG_KASAN_INLINE=y\n  - CONFIG_KASAN_VMALLOC=y\n  - CONFIG_FRAME_WARN=4096\n\nkernel detects that snd_pcm_suspend_all() access a freed\n'snd_soc_pcm_runtime' object when the system is suspended, which\nleads to a use-after-free bug:\n\n[   52.047746] BUG: KASAN: use-after-free in snd_pcm_suspend_all+0x1a8/0x270\n[   52.047765] Read of size 1 at addr ffff0000b9434d50 by task systemd-sleep/2330\n\n[   52.047785] Call trace:\n[   52.047787]  dump_backtrace+0x0/0x3c0\n[   52.047794]  show_stack+0x34/0x50\n[   52.047797]  dump_stack_lvl+0x68/0x8c\n[   52.047802]  print_address_description.constprop.0+0x74/0x2c0\n[   52.047809]  kasan_report+0x210/0x230\n[   52.047815]  __asan_report_load1_noabort+0x3c/0x50\n[   52.047820]  snd_pcm_suspend_all+0x1a8/0x270\n[   52.047824]  snd_soc_suspend+0x19c/0x4e0\n\nThe snd_pcm_sync_stop() has a NULL check on 'substream->runtime' before\nmaking any access. So we need to always set 'substream->runtime' to NULL\neverytime we kfree() it.",
  "affected": [
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        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-46798"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/993b60c7f93fa1d8ff296b58f646a867e945ae89"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8ca21e7a27c66b95a4b215edc8e45e5d66679f9f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3033ed903b4f28b5e1ab66042084fbc2c48f8624"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fe5046ca91d631ec432eee3bdb1f1c49b09c8b5e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5d13afd021eb43868fe03cef6da34ad08831ad6d"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6a14fad8be178df6c4589667efec1789a3307b4e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b4a90b543d9f62d3ac34ec1ab97fc5334b048565"
    }
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  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T11:52:36Z"
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}