{
  "cveId": "CVE-2022-49248",
  "url": "https://patchblox.com/security/cve/CVE-2022-49248",
  "summary": "CVE-2022-49248 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49248, released February 26, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  ALSA: firewire-lib: fix uninitialized flag for A...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction  AV/C deferred transaction was supported at a commit 00a7bb81c20f (\u0022ALSA: firewire-lib: Add support for deferred transaction\u0022) while \u0027deferrable\u0027 flag can be uninitialized for non-control/notify AV/C transactions. UBSAN reports it:  kernel: ================================================================================ kernel: UBSAN: invalid-load in /build/linux-aa0B4d/linux-5.15.0/sound/firewire/fcp.c:363:9 kernel: load of value 158 is not a valid value for type \u0027_Bool\u0027 kernel: CPU: 3 PID: 182227 Comm: irq/35-firewire Tainted: P           OE     5.15.0-18-generic #18-Ubuntu kernel: Hardware name: Gigabyte Technology Co., Ltd. AX370-Gaming 5/AX370-Gaming 5, BIOS F42b 08/01/2019 kernel: Call Trace: kernel:  \u003CIRQ\u003E kernel:  show_stack\u002B0x52/0x58 kernel:  dump_stack_lvl\u002B0x4a/0x5f kernel:  dump_stack\u002B0x10/0x12 kernel:  ubsan_epilogue\u002B0x9/0x45 kernel:  __ubsan_handle_load_invalid_value.cold\u002B0x44/0x49 kernel:  fcp_response.part.0.cold\u002B0x1a/0x2b [snd_firewire_lib] kernel:  fcp_response\u002B0x28/0x30 [snd_firewire_lib] kernel:  fw_core_handle_request\u002B0x230/0x3d0 [firewire_core] kernel:  handle_ar_packet\u002B0x1d9/0x200 [firewire_ohci] kernel:  ? handle_ar_packet\u002B0x1d9/0x200 [firewire_ohci] kernel:  ? transmit_complete_callback\u002B0x9f/0x120 [firewire_core] kernel:  ar_context_tasklet\u002B0xa8/0x2e0 [firewire_ohci] kernel:  tasklet_action_common.constprop.0\u002B0xea/0xf0 kernel:  tasklet_action\u002B0x22/0x30 kernel:  __do_softirq\u002B0xd9/0x2e3 kernel:  ? irq_finalize_oneshot.part.0\u002B0xf0/0xf0 kernel:  do_softirq\u002B0x75/0xa0 kernel:  \u003C/IRQ\u003E kernel:  \u003CTASK\u003E kernel:  __local_bh_enable_ip\u002B0x50/0x60 kernel:  irq_forced_thread_fn\u002B0x7e/0x90 kernel:  irq_thread\u002B0xba/0x190 kernel:  ? irq_thread_fn\u002B0x60/0x60 kernel:  kthread\u002B0x11e/0x140 kernel:  ? irq_thread_check_affinity\u002B0xf0/0xf0 kernel:  ? set_kthread_struct\u002B0x50/0x50 kernel:  ret_from_fork\u002B0x22/0x30 kernel:  \u003C/TASK\u003E kernel: ================================================================================  This commit fixes the bug. The bug has no disadvantage for the non- control/notify AV/C transactions since the flag has an effect for AV/C response with INTERIM (0x0f) status which is not used for the transactions in AV/C general specification.",
  "published": "2025-02-26T07:01:01Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00269,
  "epssPercentile": 0.19186,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.17.3-1",
      "fix": "DEBIAN-CVE-2022-49248",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49248",
      "released": "2025-02-26T07:01:01Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.17.3-1",
      "fix": "DEBIAN-CVE-2022-49248",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49248",
      "released": "2025-02-26T07:01:01Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.17.3-1",
      "fix": "DEBIAN-CVE-2022-49248",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49248",
      "released": "2025-02-26T07:01:01Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}