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net: ethernet: mtk-star-emac: fix spinlock recursion issues on rx/tx poll

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtk-star-emac: fix spinlock recursion issues on rx/tx poll Use spin_lock_irqsave and spin_unlock_irqrestore instead of spin_lock and spin_unlock in mtk_star_emac driver to avoid spinlock recursion occurrence that can happen when enabling the DMA interrupts again in rx/tx poll. ``` BUG: spinlock recursion on CPU#0, swapper/0/0 lock: 0xffff00000db9cf20, .magic: dead4ead, .owner: swapper/0/0, .owner_cpu: 0 CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.15.0-rc2-next-20250417-00001-gf6a27738686c-dirty #28 PREEMPT Hardware name: MediaTek MT8365 Open Platform EVK (DT) Call trace: show_stack+0x18/0x24 (C) dump_stack_lvl+0x60/0x80 dump_stack+0x18/0x24 spin_dump+0x78/0x88 do_raw_spin_lock+0x11c/0x120 _raw_spin_lock+0x20/0x2c mtk_star_handle_irq+0xc0/0x22c [mtk_star_emac] __handle_irq_event_percpu+0x48/0x140 handle_irq_event+0x4c/0xb0 handle_fasteoi_irq+0xa0/0x1bc handle_irq_desc+0x34/0x58 generic_handle_domain_irq+0x1c/0x28 gic_handle_irq+0x4c/0x120 do_interrupt_handler+0x50/0x84 el1_interrupt+0x34/0x68 el1h_64_irq_handler+0x18/0x24 el1h_64_irq+0x6c/0x70 regmap_mmio_read32le+0xc/0x20 (P) _regmap_bus_reg_read+0x6c/0xac _regmap_read+0x60/0xdc regmap_read+0x4c/0x80 mtk_star_rx_poll+0x2f4/0x39c [mtk_star_emac] __napi_poll+0x38/0x188 net_rx_action+0x164/0x2c0 handle_softirqs+0x100/0x244 __do_softirq+0x14/0x20 ____do_softirq+0x10/0x20 call_on_irq_stack+0x24/0x64 do_softirq_own_stack+0x1c/0x40 __irq_exit_r

Announced Source revision 1
Original source ↗

CVE-2025-37917

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2025-37917

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "97da99868573b8861de83f7126a5981d896c1d6c",
        "lessThan": "bedd287fdd3142dffad7ae2ac6ef15f4a2ad0629",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0a8bd81fd6aaace14979152e0540da8ff158a00a",
        "lessThan": "94107259f972d2fd896dbbcaa176b3b2451ff9e5",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0a8bd81fd6aaace14979152e0540da8ff158a00a",
        "lessThan": "7cb10f17bddc415f30fbc00a4e2b490e0d94c462",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0a8bd81fd6aaace14979152e0540da8ff158a00a",
        "lessThan": "8d40bf73fa7f31eac2b0a7c9d85de67df82ee7f3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0a8bd81fd6aaace14979152e0540da8ff158a00a",
        "lessThan": "d886f8d85494d12b2752fd7c6c32162d982d5dd5",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0a8bd81fd6aaace14979152e0540da8ff158a00a",
        "lessThan": "6fe0866014486736cc3ba1c6fd4606d3dbe55c9c",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/mediatek/mtk_star_emac.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.0"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.1.138",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.90",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.28",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.14.6",
        "versionType": "semver",
        "lessThanOrEqual": "6.14.*"
      },
      {
        "status": "unaffected",
        "version": "6.15",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/mediatek/mtk_star_emac.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2025-37917

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#27006 · Revision 1
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Publisher date
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