Vulnerability-Lookup

FKIE_CVE-2023-53718

Vulnerability from fkie_nvd - Published: 2025-10-22 14:15 - Updated: 2026-10-28 19:10

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Do not swap cpu_buffer during resize process When ring_buffer_swap_cpu was called during resize process, the cpu buffer was swapped in the middle, resulting in incorrect state. Continuing to run in the wrong state will result in oops. This issue can be easily reproduced using the following two scripts: /tmp # cat test1.sh //#! /bin/sh for i in `seq 0 100000` do echo 2000 > /sys/kernel/debug/tracing/buffer_size_kb sleep 0.5 echo 5000 > /sys/kernel/debug/tracing/buffer_size_kb sleep 0.5 done /tmp # cat test2.sh //#! /bin/sh for i in `seq 0 100000` do echo irqsoff > /sys/kernel/debug/tracing/current_tracer sleep 1 echo nop > /sys/kernel/debug/tracing/current_tracer sleep 1 done /tmp # ./test1.sh & /tmp # ./test2.sh & A typical oops log is as follows, sometimes with other different oops logs. [ 231.711293] WARNING: CPU: 0 PID: 9 at kernel/trace/ring_buffer.c:2026 rb_update_pages+0x378/0x3f8 [ 231.713375] Modules linked in: [ 231.714735] CPU: 0 PID: 9 Comm: kworker/0:1 Tainted: G W 6.5.0-rc1-00276-g20edcec23f92 #15 [ 231.716750] Hardware name: linux,dummy-virt (DT) [ 231.718152] Workqueue: events update_pages_handler [ 231.719714] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 231.721171] pc : rb_update_pages+0x378/0x3f8 [ 231.722212] lr : rb_update_pages+0x25c/0x3f8 [ 231.723248] sp : ffff800082b9bd50 [ 231.724169] x29: ffff800082b9bd50 x28: ffff8000825f7000 x27: 0000000000000000 [ 231.726102] x26: 0000000000000001 x25: fffffffffffff010 x24: 0000000000000ff0 [ 231.728122] x23: ffff0000c3a0b600 x22: ffff0000c3a0b5c0 x21: fffffffffffffe0a [ 231.730203] x20: ffff0000c3a0b600 x19: ffff0000c0102400 x18: 0000000000000000 [ 231.732329] x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffffe7aa8510 [ 231.734212] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000002 [ 231.736291] x11: ffff8000826998a8 x10: ffff800082b9baf0 x9 : ffff800081137558 [ 231.738195] x8 : fffffc00030e82c8 x7 : 0000000000000000 x6 : 0000000000000001 [ 231.740192] x5 : ffff0000ffbafe00 x4 : 0000000000000000 x3 : 0000000000000000 [ 231.742118] x2 : 00000000000006aa x1 : 0000000000000001 x0 : ffff0000c0007208 [ 231.744196] Call trace: [ 231.744892] rb_update_pages+0x378/0x3f8 [ 231.745893] update_pages_handler+0x1c/0x38 [ 231.746893] process_one_work+0x1f0/0x468 [ 231.747852] worker_thread+0x54/0x410 [ 231.748737] kthread+0x124/0x138 [ 231.749549] ret_from_fork+0x10/0x20 [ 231.750434] ---[ end trace 0000000000000000 ]--- [ 233.720486] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 233.721696] Mem abort info: [ 233.721935] ESR = 0x0000000096000004 [ 233.722283] EC = 0x25: DABT (current EL), IL = 32 bits [ 233.722596] SET = 0, FnV = 0 [ 233.722805] EA = 0, S1PTW = 0 [ 233.723026] FSC = 0x04: level 0 translation fault [ 233.723458] Data abort info: [ 233.723734] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 233.724176] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 233.724589] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 233.725075] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000104943000 [ 233.725592] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000 [ 233.726231] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP [ 233.726720] Modules linked in: [ 233.727007] CPU: 0 PID: 9 Comm: kworker/0:1 Tainted: G W 6.5.0-rc1-00276-g20edcec23f92 #15 [ 233.727777] Hardware name: linux,dummy-virt (DT) [ 233.728225] Workqueue: events update_pages_handler [ 233.728655] pstate: 200000c5 (nzCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 233.729054] pc : rb_update_pages+0x1a8/0x3f8 [ 233.729334] lr : rb_update_pages+0x154/0x3f8 [ 233.729592] sp : ffff800082b9bd50 [ 233.729792] x29: ffff800082b9bd50 x28: ffff8000825f7000 x27: 00000000 ---truncated---

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/02e52d7daaa3f0f48819f198092cf4871065bbf7
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/128c06a34cfe55212632533a706b050d54552741
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/49b830d75f03d5dd41146d10e4d3e2a8211c4b94
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/66a3b2a121386702663065d5c9e5a33c03d3f4a2
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8a96c0288d0737ad77882024974c075345c72011

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/trace/ring_buffer.c",
            "kernel/trace/trace.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "66a3b2a121386702663065d5c9e5a33c03d3f4a2",
              "status": "affected",
              "version": "83f40318dab00e3298a1f6d0b12ac025e84e478d",
              "versionType": "git"
            },
            {
              "lessThan": "49b830d75f03d5dd41146d10e4d3e2a8211c4b94",
              "status": "affected",
              "version": "83f40318dab00e3298a1f6d0b12ac025e84e478d",
              "versionType": "git"
            },
            {
              "lessThan": "128c06a34cfe55212632533a706b050d54552741",
              "status": "affected",
              "version": "83f40318dab00e3298a1f6d0b12ac025e84e478d",
              "versionType": "git"
            },
            {
              "lessThan": "02e52d7daaa3f0f48819f198092cf4871065bbf7",
              "status": "affected",
              "version": "83f40318dab00e3298a1f6d0b12ac025e84e478d",
              "versionType": "git"
            },
            {
              "lessThan": "8a96c0288d0737ad77882024974c075345c72011",
              "status": "affected",
              "version": "83f40318dab00e3298a1f6d0b12ac025e84e478d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/trace/ring_buffer.c",
            "kernel/trace/trace.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.5"
            },
            {
              "lessThan": "3.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.192",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.128",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.47",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nring-buffer: Do not swap cpu_buffer during resize process\n\nWhen ring_buffer_swap_cpu was called during resize process,\nthe cpu buffer was swapped in the middle, resulting in incorrect state.\nContinuing to run in the wrong state will result in oops.\n\nThis issue can be easily reproduced using the following two scripts:\n/tmp # cat test1.sh\n//#! /bin/sh\nfor i in `seq 0 100000`\ndo\n         echo 2000 \u003e /sys/kernel/debug/tracing/buffer_size_kb\n         sleep 0.5\n         echo 5000 \u003e /sys/kernel/debug/tracing/buffer_size_kb\n         sleep 0.5\ndone\n/tmp # cat test2.sh\n//#! /bin/sh\nfor i in `seq 0 100000`\ndo\n        echo irqsoff \u003e /sys/kernel/debug/tracing/current_tracer\n        sleep 1\n        echo nop \u003e /sys/kernel/debug/tracing/current_tracer\n        sleep 1\ndone\n/tmp # ./test1.sh \u0026\n/tmp # ./test2.sh \u0026\n\nA typical oops log is as follows, sometimes with other different oops logs.\n\n[  231.711293] WARNING: CPU: 0 PID: 9 at kernel/trace/ring_buffer.c:2026 rb_update_pages+0x378/0x3f8\n[  231.713375] Modules linked in:\n[  231.714735] CPU: 0 PID: 9 Comm: kworker/0:1 Tainted: G        W          6.5.0-rc1-00276-g20edcec23f92 #15\n[  231.716750] Hardware name: linux,dummy-virt (DT)\n[  231.718152] Workqueue: events update_pages_handler\n[  231.719714] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[  231.721171] pc : rb_update_pages+0x378/0x3f8\n[  231.722212] lr : rb_update_pages+0x25c/0x3f8\n[  231.723248] sp : ffff800082b9bd50\n[  231.724169] x29: ffff800082b9bd50 x28: ffff8000825f7000 x27: 0000000000000000\n[  231.726102] x26: 0000000000000001 x25: fffffffffffff010 x24: 0000000000000ff0\n[  231.728122] x23: ffff0000c3a0b600 x22: ffff0000c3a0b5c0 x21: fffffffffffffe0a\n[  231.730203] x20: ffff0000c3a0b600 x19: ffff0000c0102400 x18: 0000000000000000\n[  231.732329] x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffffe7aa8510\n[  231.734212] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000002\n[  231.736291] x11: ffff8000826998a8 x10: ffff800082b9baf0 x9 : ffff800081137558\n[  231.738195] x8 : fffffc00030e82c8 x7 : 0000000000000000 x6 : 0000000000000001\n[  231.740192] x5 : ffff0000ffbafe00 x4 : 0000000000000000 x3 : 0000000000000000\n[  231.742118] x2 : 00000000000006aa x1 : 0000000000000001 x0 : ffff0000c0007208\n[  231.744196] Call trace:\n[  231.744892]  rb_update_pages+0x378/0x3f8\n[  231.745893]  update_pages_handler+0x1c/0x38\n[  231.746893]  process_one_work+0x1f0/0x468\n[  231.747852]  worker_thread+0x54/0x410\n[  231.748737]  kthread+0x124/0x138\n[  231.749549]  ret_from_fork+0x10/0x20\n[  231.750434] ---[ end trace 0000000000000000 ]---\n[  233.720486] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n[  233.721696] Mem abort info:\n[  233.721935]   ESR = 0x0000000096000004\n[  233.722283]   EC = 0x25: DABT (current EL), IL = 32 bits\n[  233.722596]   SET = 0, FnV = 0\n[  233.722805]   EA = 0, S1PTW = 0\n[  233.723026]   FSC = 0x04: level 0 translation fault\n[  233.723458] Data abort info:\n[  233.723734]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000\n[  233.724176]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n[  233.724589]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n[  233.725075] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000104943000\n[  233.725592] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000\n[  233.726231] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP\n[  233.726720] Modules linked in:\n[  233.727007] CPU: 0 PID: 9 Comm: kworker/0:1 Tainted: G        W          6.5.0-rc1-00276-g20edcec23f92 #15\n[  233.727777] Hardware name: linux,dummy-virt (DT)\n[  233.728225] Workqueue: events update_pages_handler\n[  233.728655] pstate: 200000c5 (nzCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[  233.729054] pc : rb_update_pages+0x1a8/0x3f8\n[  233.729334] lr : rb_update_pages+0x154/0x3f8\n[  233.729592] sp : ffff800082b9bd50\n[  233.729792] x29: ffff800082b9bd50 x28: ffff8000825f7000 x27: 00000000\n---truncated---"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nring-buffer: No intercambiar cpu_buffer durante el proceso de redimensionamiento\n\nCuando se llam\u00f3 a ring_buffer_swap_cpu durante el proceso de redimensionamiento,\nel b\u00fafer de la CPU fue intercambiado en el medio, resultando en un estado incorrecto.\nContinuar ejecut\u00e1ndose en el estado incorrecto resultar\u00e1 en un oops.\n\nEste problema puede ser f\u00e1cilmente reproducido usando los siguientes dos scripts:\n/tmp # cat test1.sh\n//#! /bin/sh\nfor i in \u201cseq 0 100000\u201d\ndo\n         echo 2000 \u003e /sys/kernel/debug/tracing/buffer_size_kb\n         sleep 0.5\n         echo 5000 \u003e /sys/kernel/debug/tracing/buffer_size_kb\n         sleep 0.5\ndone\n/tmp # cat test2.sh\n//#! /bin/sh\nfor i in \u201cseq 0 100000\u201d\ndo\n        echo irqsoff \u003e /sys/kernel/debug/tracing/current_tracer\n        sleep 1\n        echo nop \u003e /sys/kernel/debug/tracing/current_tracer\n        sleep 1\ndone\n/tmp # ./test1.sh \u0026\n/tmp # ./test2.sh \u0026\n\nUn registro de oops t\u00edpico es el siguiente, a veces con otros registros de oops diferentes.\n\n[  231.711293] WARNING: CPU: 0 PID: 9 en kernel/trace/ring_buffer.c:2026 rb_update_pages+0x378/0x3f8\n[  231.713375] M\u00f3dulos enlazados:\n[  231.714735] CPU: 0 PID: 9 Comm: kworker/0:1 Tainted: G        W          6.5.0-rc1-00276-g20edcec23f92 #15\n[  231.716750] Nombre del hardware: linux,dummy-virt (DT)\n[  231.718152] Cola de trabajo: events update_pages_handler\n[  231.719714] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[  231.721171] pc : rb_update_pages+0x378/0x3f8\n[  231.722212] lr : rb_update_pages+0x25c/0x3f8\n[  231.723248] sp : ffff800082b9bd50\n[  231.724169] x29: ffff800082b9bd50 x28: ffff8000825f7000 x27: 0000000000000000\n[  231.726102] x26: 0000000000000001 x25: fffffffffffff010 x24: 0000000000000ff0\n[  231.728122] x23: ffff0000c3a0b600 x22: ffff0000c3a0b5c0 x21: fffffffffffffe0a\n[  231.730203] x20: ffff0000c3a0b600 x19: ffff0000c0102400 x18: 0000000000000000\n[  231.732329] x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffffe7aa8510\n[  231.734212] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000002\n[  231.736291] x11: ffff8000826998a8 x10: ffff800082b9baf0 x9 : ffff800081137558\n[  231.738195] x8 : fffffc00030e82c8 x7 : 0000000000000000 x6 : 0000000000000001\n[  231.740192] x5 : ffff0000ffbafe00 x4 : 0000000000000000 x3 : 0000000000000000\n[  231.742118] x2 : 00000000000006aa x1 : 0000000000000001 x0 : ffff0000c0007208\n[  231.744196] Traza de llamada:\n[  231.744892]  rb_update_pages+0x378/0x3f8\n[  231.745893]  update_pages_handler+0x1c/0x38\n[  231.746893]  process_one_work+0x1f0/0x468\n[  231.747852]  worker_thread+0x54/0x410\n[  231.748737]  kthread+0x124/0x138\n[  231.749549]  ret_from_fork+0x10/0x20\n[  231.750434] ---[ fin de la traza 0000000000000000 ]---\n[  233.720486] Incapaz de manejar la desreferencia de puntero NULL del kernel en la direcci\u00f3n virtual 0000000000000000\n[  233.721696] Informaci\u00f3n de aborto de memoria:\n[  233.721935]   ESR = 0x0000000096000004\n[  233.722283]   EC = 0x25: DABT (EL actual), IL = 32 bits\n[  233.722596]   SET = 0, FnV = 0\n[  233.722805]   EA = 0, S1PTW = 0\n[  233.723026]   FSC = 0x04: fallo de traducci\u00f3n de nivel 0\n[  233.723458] Informaci\u00f3n de aborto de datos:\n[  233.723734]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000\n[  233.724176]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n[  233.724589]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n[  233.725075] tabla de p\u00e1ginas de usuario: p\u00e1ginas de 4k, VAs de 48 bits, pgdp=0000000104943000\n[  233.725592] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000\n[  233.726231] Error interno: Oops: 0000000096000004 [#1] PREEMPT SMP\n[  233.726720] M\u00f3dulos enlazados:\n[  233.727007] CPU: 0 PID: 9 Comm: kworker/0:1 Tainted: G        W          6.5.0-rc1-00276-g20edcec23f92 #15\n[  233.727777] Nombre del hardware: linux,dummy-virt (DT)\n[  233.728225] Cola de trabajo: events update_pages_handler\n[  233.728655] pstate: 200000c5 (nzCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[  233.729054] pc : rb_update_pages+0x1a8/0x3f8\n[  233.729334] lr : --TRUNCADO--"
    }
  ],
  "id": "CVE-2023-53718",
  "lastModified": "2026-10-28T19:10:00.193",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-53718",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-15T21:36:45.674419Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-10-22T14:15:46.483",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/02e52d7daaa3f0f48819f198092cf4871065bbf7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/128c06a34cfe55212632533a706b050d54552741"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/49b830d75f03d5dd41146d10e4d3e2a8211c4b94"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/66a3b2a121386702663065d5c9e5a33c03d3f4a2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8a96c0288d0737ad77882024974c075345c72011"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}

CVE-2023-53718 (GCVE-0-2023-53718)

Vulnerability from cvelistv5 – Published: 2025-10-22 13:23 – Updated: 2026-10-15 21:41

Title

ring-buffer: Do not swap cpu_buffer during resize process

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-15 21:36 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7018 records in the last 180 days details

References

5 references

URL	Tags
https://git.kernel.org/stable/c/66a3b2a1213867026…
https://git.kernel.org/stable/c/49b830d75f03d5dd4…
https://git.kernel.org/stable/c/128c06a34cfe55212…
https://git.kernel.org/stable/c/02e52d7daaa3f0f48…
https://git.kernel.org/stable/c/8a96c0288d0737ad7…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 83f40318dab00e3298a1f6d0b12ac025e84e478d , < 66a3b2a121386702663065d5c9e5a33c03d3f4a2 (git) Affected: 83f40318dab00e3298a1f6d0b12ac025e84e478d , < 49b830d75f03d5dd41146d10e4d3e2a8211c4b94 (git) Affected: 83f40318dab00e3298a1f6d0b12ac025e84e478d , < 128c06a34cfe55212632533a706b050d54552741 (git) Affected: 83f40318dab00e3298a1f6d0b12ac025e84e478d , < 02e52d7daaa3f0f48819f198092cf4871065bbf7 (git) Affected: 83f40318dab00e3298a1f6d0b12ac025e84e478d , < 8a96c0288d0737ad77882024974c075345c72011 (git)
Linux	Linux	Affected: 3.5 Unaffected: 0 , < 3.5 (semver) Unaffected: 5.10.192 , ≤ 5.10.* (semver) Unaffected: 5.15.128 , ≤ 5.15.* (semver) Unaffected: 6.1.47 , ≤ 6.1.* (semver) Unaffected: 6.4.12 , ≤ 6.4.* (semver) Unaffected: 6.5 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-53718",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-15T21:36:45.674419Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-15T21:41:34.500Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/trace/ring_buffer.c",
            "kernel/trace/trace.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "66a3b2a121386702663065d5c9e5a33c03d3f4a2",
              "status": "affected",
              "version": "83f40318dab00e3298a1f6d0b12ac025e84e478d",
              "versionType": "git"
            },
            {
              "lessThan": "49b830d75f03d5dd41146d10e4d3e2a8211c4b94",
              "status": "affected",
              "version": "83f40318dab00e3298a1f6d0b12ac025e84e478d",
              "versionType": "git"
            },
            {
              "lessThan": "128c06a34cfe55212632533a706b050d54552741",
              "status": "affected",
              "version": "83f40318dab00e3298a1f6d0b12ac025e84e478d",
              "versionType": "git"
            },
            {
              "lessThan": "02e52d7daaa3f0f48819f198092cf4871065bbf7",
              "status": "affected",
              "version": "83f40318dab00e3298a1f6d0b12ac025e84e478d",
              "versionType": "git"
            },
            {
              "lessThan": "8a96c0288d0737ad77882024974c075345c72011",
              "status": "affected",
              "version": "83f40318dab00e3298a1f6d0b12ac025e84e478d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/trace/ring_buffer.c",
            "kernel/trace/trace.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.5"
            },
            {
              "lessThan": "3.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.192",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.128",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.47",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.192",
                  "versionStartIncluding": "3.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.128",
                  "versionStartIncluding": "3.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.47",
                  "versionStartIncluding": "3.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.4.12",
                  "versionStartIncluding": "3.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5",
                  "versionStartIncluding": "3.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nring-buffer: Do not swap cpu_buffer during resize process\n\nWhen ring_buffer_swap_cpu was called during resize process,\nthe cpu buffer was swapped in the middle, resulting in incorrect state.\nContinuing to run in the wrong state will result in oops.\n\nThis issue can be easily reproduced using the following two scripts:\n/tmp # cat test1.sh\n//#! /bin/sh\nfor i in `seq 0 100000`\ndo\n         echo 2000 \u003e /sys/kernel/debug/tracing/buffer_size_kb\n         sleep 0.5\n         echo 5000 \u003e /sys/kernel/debug/tracing/buffer_size_kb\n         sleep 0.5\ndone\n/tmp # cat test2.sh\n//#! /bin/sh\nfor i in `seq 0 100000`\ndo\n        echo irqsoff \u003e /sys/kernel/debug/tracing/current_tracer\n        sleep 1\n        echo nop \u003e /sys/kernel/debug/tracing/current_tracer\n        sleep 1\ndone\n/tmp # ./test1.sh \u0026\n/tmp # ./test2.sh \u0026\n\nA typical oops log is as follows, sometimes with other different oops logs.\n\n[  231.711293] WARNING: CPU: 0 PID: 9 at kernel/trace/ring_buffer.c:2026 rb_update_pages+0x378/0x3f8\n[  231.713375] Modules linked in:\n[  231.714735] CPU: 0 PID: 9 Comm: kworker/0:1 Tainted: G        W          6.5.0-rc1-00276-g20edcec23f92 #15\n[  231.716750] Hardware name: linux,dummy-virt (DT)\n[  231.718152] Workqueue: events update_pages_handler\n[  231.719714] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[  231.721171] pc : rb_update_pages+0x378/0x3f8\n[  231.722212] lr : rb_update_pages+0x25c/0x3f8\n[  231.723248] sp : ffff800082b9bd50\n[  231.724169] x29: ffff800082b9bd50 x28: ffff8000825f7000 x27: 0000000000000000\n[  231.726102] x26: 0000000000000001 x25: fffffffffffff010 x24: 0000000000000ff0\n[  231.728122] x23: ffff0000c3a0b600 x22: ffff0000c3a0b5c0 x21: fffffffffffffe0a\n[  231.730203] x20: ffff0000c3a0b600 x19: ffff0000c0102400 x18: 0000000000000000\n[  231.732329] x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffffe7aa8510\n[  231.734212] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000002\n[  231.736291] x11: ffff8000826998a8 x10: ffff800082b9baf0 x9 : ffff800081137558\n[  231.738195] x8 : fffffc00030e82c8 x7 : 0000000000000000 x6 : 0000000000000001\n[  231.740192] x5 : ffff0000ffbafe00 x4 : 0000000000000000 x3 : 0000000000000000\n[  231.742118] x2 : 00000000000006aa x1 : 0000000000000001 x0 : ffff0000c0007208\n[  231.744196] Call trace:\n[  231.744892]  rb_update_pages+0x378/0x3f8\n[  231.745893]  update_pages_handler+0x1c/0x38\n[  231.746893]  process_one_work+0x1f0/0x468\n[  231.747852]  worker_thread+0x54/0x410\n[  231.748737]  kthread+0x124/0x138\n[  231.749549]  ret_from_fork+0x10/0x20\n[  231.750434] ---[ end trace 0000000000000000 ]---\n[  233.720486] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n[  233.721696] Mem abort info:\n[  233.721935]   ESR = 0x0000000096000004\n[  233.722283]   EC = 0x25: DABT (current EL), IL = 32 bits\n[  233.722596]   SET = 0, FnV = 0\n[  233.722805]   EA = 0, S1PTW = 0\n[  233.723026]   FSC = 0x04: level 0 translation fault\n[  233.723458] Data abort info:\n[  233.723734]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000\n[  233.724176]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n[  233.724589]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n[  233.725075] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000104943000\n[  233.725592] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000\n[  233.726231] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP\n[  233.726720] Modules linked in:\n[  233.727007] CPU: 0 PID: 9 Comm: kworker/0:1 Tainted: G        W          6.5.0-rc1-00276-g20edcec23f92 #15\n[  233.727777] Hardware name: linux,dummy-virt (DT)\n[  233.728225] Workqueue: events update_pages_handler\n[  233.728655] pstate: 200000c5 (nzCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[  233.729054] pc : rb_update_pages+0x1a8/0x3f8\n[  233.729334] lr : rb_update_pages+0x154/0x3f8\n[  233.729592] sp : ffff800082b9bd50\n[  233.729792] x29: ffff800082b9bd50 x28: ffff8000825f7000 x27: 00000000\n---truncated---"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - Both sides of the race are reached only through local tracefs/debugfs file writes (`buffer_size_kb` and `current_tracer`/latency-tracer activity); there is no remote or adjacent-network path into `ring_buffer_resize()` or `ring_buffer_swap_cpu()`.\nAC:L - The attacker drives both racers itself \u2014 a loop writing `buffer_size_kb` while the enabled `irqsoff`/`wakeup` tracer swaps buffers on latency events the attacker generates with its own syscalls (and can force repeatedly via `echo 0 \u003e tracing_max_latency`); the upstream reproducer is two trivial shell loops that oops the kernel within minutes.\nPR:L - No `capable()`/`CAP_SYS_ADMIN` check guards either path \u2014 access is pure tracefs DAC, and the `gid=` mount option plus Android/perfetto, ChromeOS and embedded tracing setups routinely grant an unprivileged tracing user write access to `buffer_size_kb` and `current_tracer`.\nUI:N - The attacker performs all writes and generates the latency events itself; no victim action or cooperation is required.\nS:U - The corruption is confined to kernel ring-buffer state within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The stale `update_done` completion leads to `rb_remove_pages(cpu_buffer, 0)` freeing every page of a live ring buffer while the buffer still references them, so subsequent reads of `trace`/`trace_pipe` return the contents of freed-and-reallocated kernel pages \u2014 an arbitrary kernel-memory disclosure primitive.\nI:H - The same use-after-free lets active tracing writers keep recording partially attacker-controlled data (e.g. via `trace_marker`) into freed pages, and the concurrent `rb_insert_pages()`/`__rb_allocate_pages()` races corrupt the buffer_page lists and double-free pages \u2014 a heap write primitive suitable for control-flow hijacking.\nA:H - The commit demonstrates a `RB_WARN_ON` in `rb_update_pages()` followed by a kernel NULL-pointer-dereference oops, and mass-freeing a live ring buffer\u0027s pages reliably panics the machine."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T09:15:41.495Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/66a3b2a121386702663065d5c9e5a33c03d3f4a2"
        },
        {
          "url": "https://git.kernel.org/stable/c/49b830d75f03d5dd41146d10e4d3e2a8211c4b94"
        },
        {
          "url": "https://git.kernel.org/stable/c/128c06a34cfe55212632533a706b050d54552741"
        },
        {
          "url": "https://git.kernel.org/stable/c/02e52d7daaa3f0f48819f198092cf4871065bbf7"
        },
        {
          "url": "https://git.kernel.org/stable/c/8a96c0288d0737ad77882024974c075345c72011"
        }
      ],
      "title": "ring-buffer: Do not swap cpu_buffer during resize process",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53718",
    "datePublished": "2025-10-22T13:23:50.809Z",
    "dateReserved": "2025-10-22T13:21:37.347Z",
    "dateUpdated": "2026-10-15T21:41:34.500Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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