CVE-2025-37993 (GCVE-0-2025-37993)
Vulnerability from cvelistv5
Published
2025-05-29 13:15
Modified
2025-05-29 13:15
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: can: m_can: m_can_class_allocate_dev(): initialize spin lock on device probe The spin lock tx_handling_spinlock in struct m_can_classdev is not being initialized. This leads the following spinlock bad magic complaint from the kernel, eg. when trying to send CAN frames with cansend from can-utils: | BUG: spinlock bad magic on CPU#0, cansend/95 | lock: 0xff60000002ec1010, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0 | CPU: 0 UID: 0 PID: 95 Comm: cansend Not tainted 6.15.0-rc3-00032-ga79be02bba5c #5 NONE | Hardware name: MachineWare SIM-V (DT) | Call Trace: | [<ffffffff800133e0>] dump_backtrace+0x1c/0x24 | [<ffffffff800022f2>] show_stack+0x28/0x34 | [<ffffffff8000de3e>] dump_stack_lvl+0x4a/0x68 | [<ffffffff8000de70>] dump_stack+0x14/0x1c | [<ffffffff80003134>] spin_dump+0x62/0x6e | [<ffffffff800883ba>] do_raw_spin_lock+0xd0/0x142 | [<ffffffff807a6fcc>] _raw_spin_lock_irqsave+0x20/0x2c | [<ffffffff80536dba>] m_can_start_xmit+0x90/0x34a | [<ffffffff806148b0>] dev_hard_start_xmit+0xa6/0xee | [<ffffffff8065b730>] sch_direct_xmit+0x114/0x292 | [<ffffffff80614e2a>] __dev_queue_xmit+0x3b0/0xaa8 | [<ffffffff8073b8fa>] can_send+0xc6/0x242 | [<ffffffff8073d1c0>] raw_sendmsg+0x1a8/0x36c | [<ffffffff805ebf06>] sock_write_iter+0x9a/0xee | [<ffffffff801d06ea>] vfs_write+0x184/0x3a6 | [<ffffffff801d0a88>] ksys_write+0xa0/0xc0 | [<ffffffff801d0abc>] __riscv_sys_write+0x14/0x1c | [<ffffffff8079ebf8>] do_trap_ecall_u+0x168/0x212 | [<ffffffff807a830a>] handle_exception+0x146/0x152 Initializing the spin lock in m_can_class_allocate_dev solves that problem.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1fa80e23c15051edc1c594270517de3517ded798
Version: 1fa80e23c15051edc1c594270517de3517ded798
Version: 1fa80e23c15051edc1c594270517de3517ded798
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/can/m_can/m_can.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2ecce25ea296f328d79070ee36229a15aeeb7aca",
              "status": "affected",
              "version": "1fa80e23c15051edc1c594270517de3517ded798",
              "versionType": "git"
            },
            {
              "lessThan": "7d5379cfecfdd665e4206bc4f19824656388779f",
              "status": "affected",
              "version": "1fa80e23c15051edc1c594270517de3517ded798",
              "versionType": "git"
            },
            {
              "lessThan": "dcaeeb8ae84c5506ebc574732838264f3887738c",
              "status": "affected",
              "version": "1fa80e23c15051edc1c594270517de3517ded798",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/can/m_can/m_can.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.9"
            },
            {
              "lessThan": "6.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.29",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.29",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.7",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: m_can: m_can_class_allocate_dev(): initialize spin lock on device probe\n\nThe spin lock tx_handling_spinlock in struct m_can_classdev is not\nbeing initialized. This leads the following spinlock bad magic\ncomplaint from the kernel, eg. when trying to send CAN frames with\ncansend from can-utils:\n\n| BUG: spinlock bad magic on CPU#0, cansend/95\n|  lock: 0xff60000002ec1010, .magic: 00000000, .owner: \u003cnone\u003e/-1, .owner_cpu: 0\n| CPU: 0 UID: 0 PID: 95 Comm: cansend Not tainted 6.15.0-rc3-00032-ga79be02bba5c #5 NONE\n| Hardware name: MachineWare SIM-V (DT)\n| Call Trace:\n| [\u003cffffffff800133e0\u003e] dump_backtrace+0x1c/0x24\n| [\u003cffffffff800022f2\u003e] show_stack+0x28/0x34\n| [\u003cffffffff8000de3e\u003e] dump_stack_lvl+0x4a/0x68\n| [\u003cffffffff8000de70\u003e] dump_stack+0x14/0x1c\n| [\u003cffffffff80003134\u003e] spin_dump+0x62/0x6e\n| [\u003cffffffff800883ba\u003e] do_raw_spin_lock+0xd0/0x142\n| [\u003cffffffff807a6fcc\u003e] _raw_spin_lock_irqsave+0x20/0x2c\n| [\u003cffffffff80536dba\u003e] m_can_start_xmit+0x90/0x34a\n| [\u003cffffffff806148b0\u003e] dev_hard_start_xmit+0xa6/0xee\n| [\u003cffffffff8065b730\u003e] sch_direct_xmit+0x114/0x292\n| [\u003cffffffff80614e2a\u003e] __dev_queue_xmit+0x3b0/0xaa8\n| [\u003cffffffff8073b8fa\u003e] can_send+0xc6/0x242\n| [\u003cffffffff8073d1c0\u003e] raw_sendmsg+0x1a8/0x36c\n| [\u003cffffffff805ebf06\u003e] sock_write_iter+0x9a/0xee\n| [\u003cffffffff801d06ea\u003e] vfs_write+0x184/0x3a6\n| [\u003cffffffff801d0a88\u003e] ksys_write+0xa0/0xc0\n| [\u003cffffffff801d0abc\u003e] __riscv_sys_write+0x14/0x1c\n| [\u003cffffffff8079ebf8\u003e] do_trap_ecall_u+0x168/0x212\n| [\u003cffffffff807a830a\u003e] handle_exception+0x146/0x152\n\nInitializing the spin lock in m_can_class_allocate_dev solves that\nproblem."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-29T13:15:52.811Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2ecce25ea296f328d79070ee36229a15aeeb7aca"
        },
        {
          "url": "https://git.kernel.org/stable/c/7d5379cfecfdd665e4206bc4f19824656388779f"
        },
        {
          "url": "https://git.kernel.org/stable/c/dcaeeb8ae84c5506ebc574732838264f3887738c"
        }
      ],
      "title": "can: m_can: m_can_class_allocate_dev(): initialize spin lock on device probe",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37993",
    "datePublished": "2025-05-29T13:15:52.811Z",
    "dateReserved": "2025-04-16T04:51:23.976Z",
    "dateUpdated": "2025-05-29T13:15:52.811Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-37993\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-29T14:15:35.767\",\"lastModified\":\"2025-05-29T14:29:50.247\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: m_can: m_can_class_allocate_dev(): initialize spin lock on device probe\\n\\nThe spin lock tx_handling_spinlock in struct m_can_classdev is not\\nbeing initialized. This leads the following spinlock bad magic\\ncomplaint from the kernel, eg. when trying to send CAN frames with\\ncansend from can-utils:\\n\\n| BUG: spinlock bad magic on CPU#0, cansend/95\\n|  lock: 0xff60000002ec1010, .magic: 00000000, .owner: \u003cnone\u003e/-1, .owner_cpu: 0\\n| CPU: 0 UID: 0 PID: 95 Comm: cansend Not tainted 6.15.0-rc3-00032-ga79be02bba5c #5 NONE\\n| Hardware name: MachineWare SIM-V (DT)\\n| Call Trace:\\n| [\u003cffffffff800133e0\u003e] dump_backtrace+0x1c/0x24\\n| [\u003cffffffff800022f2\u003e] show_stack+0x28/0x34\\n| [\u003cffffffff8000de3e\u003e] dump_stack_lvl+0x4a/0x68\\n| [\u003cffffffff8000de70\u003e] dump_stack+0x14/0x1c\\n| [\u003cffffffff80003134\u003e] spin_dump+0x62/0x6e\\n| [\u003cffffffff800883ba\u003e] do_raw_spin_lock+0xd0/0x142\\n| [\u003cffffffff807a6fcc\u003e] _raw_spin_lock_irqsave+0x20/0x2c\\n| [\u003cffffffff80536dba\u003e] m_can_start_xmit+0x90/0x34a\\n| [\u003cffffffff806148b0\u003e] dev_hard_start_xmit+0xa6/0xee\\n| [\u003cffffffff8065b730\u003e] sch_direct_xmit+0x114/0x292\\n| [\u003cffffffff80614e2a\u003e] __dev_queue_xmit+0x3b0/0xaa8\\n| [\u003cffffffff8073b8fa\u003e] can_send+0xc6/0x242\\n| [\u003cffffffff8073d1c0\u003e] raw_sendmsg+0x1a8/0x36c\\n| [\u003cffffffff805ebf06\u003e] sock_write_iter+0x9a/0xee\\n| [\u003cffffffff801d06ea\u003e] vfs_write+0x184/0x3a6\\n| [\u003cffffffff801d0a88\u003e] ksys_write+0xa0/0xc0\\n| [\u003cffffffff801d0abc\u003e] __riscv_sys_write+0x14/0x1c\\n| [\u003cffffffff8079ebf8\u003e] do_trap_ecall_u+0x168/0x212\\n| [\u003cffffffff807a830a\u003e] handle_exception+0x146/0x152\\n\\nInitializing the spin lock in m_can_class_allocate_dev solves that\\nproblem.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2ecce25ea296f328d79070ee36229a15aeeb7aca\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7d5379cfecfdd665e4206bc4f19824656388779f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/dcaeeb8ae84c5506ebc574732838264f3887738c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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