{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2022-49248",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49248",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-02-26T01:56:06.709Z",
    "updatedAt": "2026-05-11T18:56:00.845Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction\n\nAV/C deferred transaction was supported at a commit 00a7bb81c20f (\"ALSA:\nfirewire-lib: Add support for deferred transaction\") while 'deferrable'\nflag can be uninitialized for non-control/notify AV/C transactions.\nUBSAN reports it:\n\nkernel: ================================================================================\nkernel: UBSAN: invalid-load in /build/linux-aa0B4d/linux-5.15.0/sound/firewire/fcp.c:363:9\nkernel: load of value 158 is not a valid value for type '_Bool'\nkernel: CPU: 3 PID: 182227 Comm: irq/35-firewire Tainted: P           OE     5.15.0-18-generic #18-Ubuntu\nkernel: Hardware name: Gigabyte Technology Co., Ltd. AX370-Gaming 5/AX370-Gaming 5, BIOS F42b 08/01/2019\nkernel: Call Trace:\nkernel:  <IRQ>\nkernel:  show_stack+0x52/0x58\nkernel:  dump_stack_lvl+0x4a/0x5f\nkernel:  dump_stack+0x10/0x12\nkernel:  ubsan_epilogue+0x9/0x45\nkernel:  __ubsan_handle_load_invalid_value.cold+0x44/0x49\nkernel:  fcp_response.part.0.cold+0x1a/0x2b [snd_firewire_lib]\nkernel:  fcp_response+0x28/0x30 [snd_firewire_lib]\nkernel:  fw_core_handle_request+0x230/0x3d0 [firewire_core]\nkernel:  handle_ar_packet+0x1d9/0x200 [firewire_ohci]\nkernel:  ? handle_ar_packet+0x1d9/0x200 [firewire_ohci]\nkernel:  ? transmit_complete_callback+0x9f/0x120 [firewire_core]\nkernel:  ar_context_tasklet+0xa8/0x2e0 [firewire_ohci]\nkernel:  tasklet_action_common.constprop.0+0xea/0xf0\nkernel:  tasklet_action+0x22/0x30\nkernel:  __do_softirq+0xd9/0x2e3\nkernel:  ? irq_finalize_oneshot.part.0+0xf0/0xf0\nkernel:  do_softirq+0x75/0xa0\nkernel:  </IRQ>\nkernel:  <TASK>\nkernel:  __local_bh_enable_ip+0x50/0x60\nkernel:  irq_forced_thread_fn+0x7e/0x90\nkernel:  irq_thread+0xba/0x190\nkernel:  ? irq_thread_fn+0x60/0x60\nkernel:  kthread+0x11e/0x140\nkernel:  ? irq_thread_check_affinity+0xf0/0xf0\nkernel:  ? set_kthread_struct+0x50/0x50\nkernel:  ret_from_fork+0x22/0x30\nkernel:  </TASK>\nkernel: ================================================================================\n\nThis commit fixes the bug. The bug has no disadvantage for the non-\ncontrol/notify AV/C transactions since the flag has an effect for AV/C\nresponse with INTERIM (0x0f) status which is not used for the transactions\nin AV/C general specification.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "00a7bb81c20f3e81711e28e0f6c08cee8fd18514",
              "status": "affected",
              "versionType": "git",
              "lessThan": "99582e4b19f367fa95bdd150b3034d7ce8113342"
            },
            {
              "version": "00a7bb81c20f3e81711e28e0f6c08cee8fd18514",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b2b65c9013dc28836d82e25d0f0c94d794a14aba"
            },
            {
              "version": "00a7bb81c20f3e81711e28e0f6c08cee8fd18514",
              "status": "affected",
              "versionType": "git",
              "lessThan": "60e5d391805d70458a01998de00d0c28cba40bf3"
            },
            {
              "version": "00a7bb81c20f3e81711e28e0f6c08cee8fd18514",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7025f40690a235a118c87674cfb93072694aa66d"
            },
            {
              "version": "00a7bb81c20f3e81711e28e0f6c08cee8fd18514",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7e6f5786621df060f8296f074efd275eaf20361a"
            },
            {
              "version": "00a7bb81c20f3e81711e28e0f6c08cee8fd18514",
              "status": "affected",
              "versionType": "git",
              "lessThan": "eab74c41612083bd627b60da650e19234e4f1051"
            },
            {
              "version": "00a7bb81c20f3e81711e28e0f6c08cee8fd18514",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d07e4bbaff6fbba6f70c04b092ea7d9afcdf392e"
            },
            {
              "version": "00a7bb81c20f3e81711e28e0f6c08cee8fd18514",
              "status": "affected",
              "versionType": "git",
              "lessThan": "39d2c4a33dc1b4402cec68a3c8f82c6588b6edce"
            },
            {
              "version": "00a7bb81c20f3e81711e28e0f6c08cee8fd18514",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bf0cd60b7e33cf221fbe1114e4acb2c828b0af0d"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.16",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.16"
            },
            {
              "version": "4.9.311",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.9.*"
            },
            {
              "version": "4.14.276",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.238",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.189",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.110",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.33",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.16.19",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.16.*"
            },
            {
              "version": "5.17.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.17.*"
            },
            {
              "version": "5.18",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}