cve-2024-57891
Vulnerability from cvelistv5
Published
2025-01-15 13:05
Modified
2025-01-20 06:29
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: sched_ext: Fix invalid irq restore in scx_ops_bypass() While adding outer irqsave/restore locking, 0e7ffff1b811 ("scx: Fix raciness in scx_ops_bypass()") forgot to convert an inner rq_unlock_irqrestore() to rq_unlock() which could re-enable IRQ prematurely leading to the following warning: raw_local_irq_restore() called with IRQs enabled WARNING: CPU: 1 PID: 96 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x30/0x40 ... Sched_ext: create_dsq (enabling) pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : warn_bogus_irq_restore+0x30/0x40 lr : warn_bogus_irq_restore+0x30/0x40 ... Call trace: warn_bogus_irq_restore+0x30/0x40 (P) warn_bogus_irq_restore+0x30/0x40 (L) scx_ops_bypass+0x224/0x3b8 scx_ops_enable.isra.0+0x2c8/0xaa8 bpf_scx_reg+0x18/0x30 ... irq event stamp: 33739 hardirqs last enabled at (33739): [<ffff8000800b699c>] scx_ops_bypass+0x174/0x3b8 hardirqs last disabled at (33738): [<ffff800080d48ad4>] _raw_spin_lock_irqsave+0xb4/0xd8 Drop the stray _irqrestore().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/18b2093f4598d8ee67a8153badc93f0fa7686b8a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/786362ce60d79967875f43e0ba55ad7a5376c133
Impacted products
Vendor Product Version
Linux Linux Version: 0e7ffff1b8117b05635c87d3c9099f6aa9c9b689
Version: 0e7ffff1b8117b05635c87d3c9099f6aa9c9b689
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   Linux Linux Version: 6.12
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/sched/ext.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "786362ce60d79967875f43e0ba55ad7a5376c133",
              "status": "affected",
              "version": "0e7ffff1b8117b05635c87d3c9099f6aa9c9b689",
              "versionType": "git"
            },
            {
              "lessThan": "18b2093f4598d8ee67a8153badc93f0fa7686b8a",
              "status": "affected",
              "version": "0e7ffff1b8117b05635c87d3c9099f6aa9c9b689",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/sched/ext.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.12"
            },
            {
              "lessThan": "6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsched_ext: Fix invalid irq restore in scx_ops_bypass()\n\nWhile adding outer irqsave/restore locking, 0e7ffff1b811 (\"scx: Fix raciness\nin scx_ops_bypass()\") forgot to convert an inner rq_unlock_irqrestore() to\nrq_unlock() which could re-enable IRQ prematurely leading to the following\nwarning:\n\n  raw_local_irq_restore() called with IRQs enabled\n  WARNING: CPU: 1 PID: 96 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x30/0x40\n  ...\n  Sched_ext: create_dsq (enabling)\n  pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n  pc : warn_bogus_irq_restore+0x30/0x40\n  lr : warn_bogus_irq_restore+0x30/0x40\n  ...\n  Call trace:\n   warn_bogus_irq_restore+0x30/0x40 (P)\n   warn_bogus_irq_restore+0x30/0x40 (L)\n   scx_ops_bypass+0x224/0x3b8\n   scx_ops_enable.isra.0+0x2c8/0xaa8\n   bpf_scx_reg+0x18/0x30\n  ...\n  irq event stamp: 33739\n  hardirqs last  enabled at (33739): [\u003cffff8000800b699c\u003e] scx_ops_bypass+0x174/0x3b8\n  hardirqs last disabled at (33738): [\u003cffff800080d48ad4\u003e] _raw_spin_lock_irqsave+0xb4/0xd8\n\nDrop the stray _irqrestore()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-01-20T06:29:00.250Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/786362ce60d79967875f43e0ba55ad7a5376c133"
        },
        {
          "url": "https://git.kernel.org/stable/c/18b2093f4598d8ee67a8153badc93f0fa7686b8a"
        }
      ],
      "title": "sched_ext: Fix invalid irq restore in scx_ops_bypass()",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-57891",
    "datePublished": "2025-01-15T13:05:43.607Z",
    "dateReserved": "2025-01-11T14:45:42.028Z",
    "dateUpdated": "2025-01-20T06:29:00.250Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-57891\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-01-15T13:15:13.590\",\"lastModified\":\"2025-01-15T13:15:13.590\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nsched_ext: Fix invalid irq restore in scx_ops_bypass()\\n\\nWhile adding outer irqsave/restore locking, 0e7ffff1b811 (\\\"scx: Fix raciness\\nin scx_ops_bypass()\\\") forgot to convert an inner rq_unlock_irqrestore() to\\nrq_unlock() which could re-enable IRQ prematurely leading to the following\\nwarning:\\n\\n  raw_local_irq_restore() called with IRQs enabled\\n  WARNING: CPU: 1 PID: 96 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x30/0x40\\n  ...\\n  Sched_ext: create_dsq (enabling)\\n  pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\n  pc : warn_bogus_irq_restore+0x30/0x40\\n  lr : warn_bogus_irq_restore+0x30/0x40\\n  ...\\n  Call trace:\\n   warn_bogus_irq_restore+0x30/0x40 (P)\\n   warn_bogus_irq_restore+0x30/0x40 (L)\\n   scx_ops_bypass+0x224/0x3b8\\n   scx_ops_enable.isra.0+0x2c8/0xaa8\\n   bpf_scx_reg+0x18/0x30\\n  ...\\n  irq event stamp: 33739\\n  hardirqs last  enabled at (33739): [\u003cffff8000800b699c\u003e] scx_ops_bypass+0x174/0x3b8\\n  hardirqs last disabled at (33738): [\u003cffff800080d48ad4\u003e] _raw_spin_lock_irqsave+0xb4/0xd8\\n\\nDrop the stray _irqrestore().\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: sched_ext: Arreglar restauraci\u00f3n de irq no v\u00e1lida en scx_ops_bypass() Al agregar el bloqueo de irqsave/restore externo, 0e7ffff1b811 (\\\"scx: Arreglar la agresividad en scx_ops_bypass()\\\") olvid\u00f3 convertir un rq_unlock_irqrestore() interno en rq_unlock() que podr\u00eda volver a habilitar IRQ prematuramente, lo que genera la siguiente advertencia: raw_local_irq_restore() llamado con IRQ habilitados ADVERTENCIA: CPU: 1 PID: 96 en kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x30/0x40 ... Sched_ext: create_dsq (habilitando) pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : warn_bogus_irq_restore+0x30/0x40 lr : warn_bogus_irq_restore+0x30/0x40 ... Rastreo de llamadas: warn_bogus_irq_restore+0x30/0x40 (P) warn_bogus_irq_restore+0x30/0x40 (L) scx_ops_bypass+0x224/0x3b8 scx_ops_enable.isra.0+0x2c8/0xaa8 bpf_scx_reg+0x18/0x30 ... marca de evento irq: 33739 hardirqs habilitados por \u00faltima vez en (33739): [] scx_ops_bypass+0x174/0x3b8 hardirqs deshabilitados por \u00faltima vez en (33738): [] _raw_spin_lock_irqsave+0xb4/0xd8 Elimina el _irqrestore() perdido.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/18b2093f4598d8ee67a8153badc93f0fa7686b8a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/786362ce60d79967875f43e0ba55ad7a5376c133\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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