{
  "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-2025-38224",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-38224",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-07-04T13:37:39.305Z",
    "updatedAt": "2026-08-05T12:00:27.874Z",
    "importedAt": "2026-10-24T01:57:34.152Z",
    "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": "can: kvaser_pciefd: refine error prone echo_skb_max handling logic",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: kvaser_pciefd: refine error prone echo_skb_max handling logic\n\necho_skb_max should define the supported upper limit of echo_skb[]\nallocated inside the netdevice's priv. The corresponding size value\nprovided by this driver to alloc_candev() is KVASER_PCIEFD_CAN_TX_MAX_COUNT\nwhich is 17.\n\nBut later echo_skb_max is rounded up to the nearest power of two (for the\nmax case, that would be 32) and the tx/ack indices calculated further\nduring tx/rx may exceed the upper array boundary. Kasan reported this for\nthe ack case inside kvaser_pciefd_handle_ack_packet(), though the xmit\nfunction has actually caught the same thing earlier.\n\n BUG: KASAN: slab-out-of-bounds in kvaser_pciefd_handle_ack_packet+0x2d7/0x92a drivers/net/can/kvaser_pciefd.c:1528\n Read of size 8 at addr ffff888105e4f078 by task swapper/4/0\n\n CPU: 4 UID: 0 PID: 0 Comm: swapper/4 Not tainted 6.15.0 #12 PREEMPT(voluntary)\n Call Trace:\n  <IRQ>\n dump_stack_lvl lib/dump_stack.c:122\n print_report mm/kasan/report.c:521\n kasan_report mm/kasan/report.c:634\n kvaser_pciefd_handle_ack_packet drivers/net/can/kvaser_pciefd.c:1528\n kvaser_pciefd_read_packet drivers/net/can/kvaser_pciefd.c:1605\n kvaser_pciefd_read_buffer drivers/net/can/kvaser_pciefd.c:1656\n kvaser_pciefd_receive_irq drivers/net/can/kvaser_pciefd.c:1684\n kvaser_pciefd_irq_handler drivers/net/can/kvaser_pciefd.c:1733\n __handle_irq_event_percpu kernel/irq/handle.c:158\n handle_irq_event kernel/irq/handle.c:210\n handle_edge_irq kernel/irq/chip.c:833\n __common_interrupt arch/x86/kernel/irq.c:296\n common_interrupt arch/x86/kernel/irq.c:286\n  </IRQ>\n\nTx max count definitely matters for kvaser_pciefd_tx_avail(), but for seq\nnumbers' generation that's not the case - we're free to calculate them as\nwould be more convenient, not taking tx max count into account. The only\ndownside is that the size of echo_skb[] should correspond to the max seq\nnumber (not tx max count), so in some situations a bit more memory would\nbe consumed than could be.\n\nThus make the size of the underlying echo_skb[] sufficient for the rounded\nmax tx value.\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "352fbde14177d608a54120b6ff559ce5b3cf6238",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d8a054b6e6824a8b52c3977ebd38c9583a63efac"
            },
            {
              "version": "8256e0ca601051933e9395746817f3801fa9a6bf",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a6550c9aa11e2f57f9cdaa6249cdd44d446be874"
            },
            {
              "version": "8256e0ca601051933e9395746817f3801fa9a6bf",
              "status": "affected",
              "versionType": "git",
              "lessThan": "54ec8b08216f3be2cc98b33633d3c8ea79749895"
            },
            {
              "version": "f14512f3ee09cda986191c8dd7f54972afa2c763",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "6.12.31",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.35"
            },
            {
              "version": "6.14.9",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.15"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.15"
            },
            {
              "version": "6.12.35",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.15.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.15.*"
            },
            {
              "version": "6.16",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}