CVE-2023-53655

Estado: AnalizadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

rcu: Avoid stack overflow due to __rcu_irq_enter_check_tick() being kprobe-ed

Registering a kprobe on __rcu_irq_enter_check_tick() can cause kernel stack overflow as shown below. This issue can be reproduced by enabling CONFIG_NO_HZ_FULL and booting the kernel with argument "nohz_full=", and then giving the following commands at the shell prompt:

This commit therefore adds __rcu_irq_enter_check_tick() to the kprobes blacklist using NOKPROBE_SYMBOL().

Detalles técnicos trazas, registros y código del informe original

  # cd /sys/kernel/tracing/
  # echo 'p:mp1 __rcu_irq_enter_check_tick' >> kprobe_events
  # echo 1 > events/kprobes/enable

Insufficient stack space to handle exception!
ESR: 0x00000000f2000004 -- BRK (AArch64)
FAR: 0x0000ffffccf3e510
Task stack:     [0xffff80000ad30000..0xffff80000ad38000]
IRQ stack:      [0xffff800008050000..0xffff800008058000]
Overflow stack: [0xffff089c36f9f310..0xffff089c36fa0310]
CPU: 5 PID: 190 Comm: bash Not tainted 6.2.0-rc2-00320-g1f5abbd77e2c #19
Hardware name: linux,dummy-virt (DT)
pstate: 400003c5 (nZcv DAIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __rcu_irq_enter_check_tick+0x0/0x1b8
lr : ct_nmi_enter+0x11c/0x138
sp : ffff80000ad30080
x29: ffff80000ad30080 x28: ffff089c82e20000 x27: 0000000000000000
x26: 0000000000000000 x25: ffff089c02a8d100 x24: 0000000000000000
x23: 00000000400003c5 x22: 0000ffffccf3e510 x21: ffff089c36fae148
x20: ffff80000ad30120 x19: ffffa8da8fcce148 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: ffffa8da8e44ea6c
x14: ffffa8da8e44e968 x13: ffffa8da8e03136c x12: 1fffe113804d6809
x11: ffff6113804d6809 x10: 0000000000000a60 x9 : dfff800000000000
x8 : ffff089c026b404f x7 : 00009eec7fb297f7 x6 : 0000000000000001
x5 : ffff80000ad30120 x4 : dfff800000000000 x3 : ffffa8da8e3016f4
x2 : 0000000000000003 x1 : 0000000000000000 x0 : 0000000000000000
Kernel panic - not syncing: kernel stack overflow
CPU: 5 PID: 190 Comm: bash Not tainted 6.2.0-rc2-00320-g1f5abbd77e2c #19
Hardware name: linux,dummy-virt (DT)
Call trace:
 dump_backtrace+0xf8/0x108
 show_stack+0x20/0x30
 dump_stack_lvl+0x68/0x84
 dump_stack+0x1c/0x38
 panic+0x214/0x404
 add_taint+0x0/0xf8
 panic_bad_stack+0x144/0x160
 handle_bad_stack+0x38/0x58
 __bad_stack+0x78/0x7c
 __rcu_irq_enter_check_tick+0x0/0x1b8
 arm64_enter_el1_dbg.isra.0+0x14/0x20
 el1_dbg+0x2c/0x90
 el1h_64_sync_handler+0xcc/0xe8
 el1h_64_sync+0x64/0x68
 __rcu_irq_enter_check_tick+0x0/0x1b8
 arm64_enter_el1_dbg.isra.0+0x14/0x20
 el1_dbg+0x2c/0x90
 el1h_64_sync_handler+0xcc/0xe8
 el1h_64_sync+0x64/0x68
 __rcu_irq_enter_check_tick+0x0/0x1b8
 arm64_enter_el1_dbg.isra.0+0x14/0x20
 el1_dbg+0x2c/0x90
 el1h_64_sync_handler+0xcc/0xe8
 el1h_64_sync+0x64/0x68
 __rcu_irq_enter_check_tick+0x0/0x1b8
 [...]
 el1_dbg+0x2c/0x90
 el1h_64_sync_handler+0xcc/0xe8
 el1h_64_sync+0x64/0x68
 __rcu_irq_enter_check_tick+0x0/0x1b8
 arm64_enter_el1_dbg.isra.0+0x14/0x20
 el1_dbg+0x2c/0x90
 el1h_64_sync_handler+0xcc/0xe8
 el1h_64_sync+0x64/0x68
 __rcu_irq_enter_check_tick+0x0/0x1b8
 arm64_enter_el1_dbg.isra.0+0x14/0x20
 el1_dbg+0x2c/0x90
 el1h_64_sync_handler+0xcc/0xe8
 el1h_64_sync+0x64/0x68
 __rcu_irq_enter_check_tick+0x0/0x1b8
 el1_interrupt+0x28/0x60
 el1h_64_irq_handler+0x18/0x28
 el1h_64_irq+0x64/0x68
 __ftrace_set_clr_event_nolock+0x98/0x198
 __ftrace_set_clr_event+0x58/0x80
 system_enable_write+0x144/0x178
 vfs_write+0x174/0x738
 ksys_write+0xd0/0x188
 __arm64_sys_write+0x4c/0x60
 invoke_syscall+0x64/0x180
 el0_svc_common.constprop.0+0x84/0x160
 do_el0_svc+0x48/0xe8
 el0_svc+0x34/0xd0
 el0t_64_sync_handler+0xb8/0xc0
 el0t_64_sync+0x190/0x194
SMP: stopping secondary CPUs
Kernel Offset: 0x28da86000000 from 0xffff800008000000
PHYS_OFFSET: 0xfffff76600000000
CPU features: 0x00000,01a00100,0000421b
Memory Limit: none

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Puntuación base: 5.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.17%
Percentil entre todas las CVEs puntuadas: 6
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

CWE-674

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2023-53655",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
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          "vendor": "Linux",
          "product": "Linux",
          "versions": [
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              "versionType": "git"
            },
            {
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              "lessThan": "c8a3341b339285495cf7c8d061d659465f2311e0",
              "versionType": "git"
            },
            {
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              "lessThan": "93b6295f677d96b73cfcb703532f6c7369a60d96",
              "versionType": "git"
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            {
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              "lessThan": "7b5a97333e920b69356e097f185bdc51d61e66ee",
              "versionType": "git"
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            {
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              "versionType": "git"
            }
          ],
          "programFiles": [
            "kernel/rcu/tree.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.8"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.8",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.180",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.111",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.28",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.2.15",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "status": "unaffected",
              "version": "6.3.2",
              "versionType": "semver",
              "lessThanOrEqual": "6.3.*"
            },
            {
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "kernel/rcu/tree.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-10-07T16:15:49.090",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/4c3d1a6720aefb02403ddfebe85db521d3af2c3b",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7a29fb4a4771124bc61de397dbfc1554dbbcc19c",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7b5a97333e920b69356e097f185bdc51d61e66ee",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/93b6295f677d96b73cfcb703532f6c7369a60d96",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c8a3341b339285495cf7c8d061d659465f2311e0",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/eb18bc5a8678f431c500e6da1b8b5f34478d5bc1",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-674"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrcu: Avoid stack overflow due to __rcu_irq_enter_check_tick() being kprobe-ed\n\nRegistering a kprobe on __rcu_irq_enter_check_tick() can cause kernel\nstack overflow as shown below. This issue can be reproduced by enabling\nCONFIG_NO_HZ_FULL and booting the kernel with argument \"nohz_full=\",\nand then giving the following commands at the shell prompt:\n\n  # cd /sys/kernel/tracing/\n  # echo 'p:mp1 __rcu_irq_enter_check_tick' >> kprobe_events\n  # echo 1 > events/kprobes/enable\n\nThis commit therefore adds __rcu_irq_enter_check_tick() to the kprobes\nblacklist using NOKPROBE_SYMBOL().\n\nInsufficient stack space to handle exception!\nESR: 0x00000000f2000004 -- BRK (AArch64)\nFAR: 0x0000ffffccf3e510\nTask stack:     [0xffff80000ad30000..0xffff80000ad38000]\nIRQ stack:      [0xffff800008050000..0xffff800008058000]\nOverflow stack: [0xffff089c36f9f310..0xffff089c36fa0310]\nCPU: 5 PID: 190 Comm: bash Not tainted 6.2.0-rc2-00320-g1f5abbd77e2c #19\nHardware name: linux,dummy-virt (DT)\npstate: 400003c5 (nZcv DAIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : __rcu_irq_enter_check_tick+0x0/0x1b8\nlr : ct_nmi_enter+0x11c/0x138\nsp : ffff80000ad30080\nx29: ffff80000ad30080 x28: ffff089c82e20000 x27: 0000000000000000\nx26: 0000000000000000 x25: ffff089c02a8d100 x24: 0000000000000000\nx23: 00000000400003c5 x22: 0000ffffccf3e510 x21: ffff089c36fae148\nx20: ffff80000ad30120 x19: ffffa8da8fcce148 x18: 0000000000000000\nx17: 0000000000000000 x16: 0000000000000000 x15: ffffa8da8e44ea6c\nx14: ffffa8da8e44e968 x13: ffffa8da8e03136c x12: 1fffe113804d6809\nx11: ffff6113804d6809 x10: 0000000000000a60 x9 : dfff800000000000\nx8 : ffff089c026b404f x7 : 00009eec7fb297f7 x6 : 0000000000000001\nx5 : ffff80000ad30120 x4 : dfff800000000000 x3 : ffffa8da8e3016f4\nx2 : 0000000000000003 x1 : 0000000000000000 x0 : 0000000000000000\nKernel panic - not syncing: kernel stack overflow\nCPU: 5 PID: 190 Comm: bash Not tainted 6.2.0-rc2-00320-g1f5abbd77e2c #19\nHardware name: linux,dummy-virt (DT)\nCall trace:\n dump_backtrace+0xf8/0x108\n show_stack+0x20/0x30\n dump_stack_lvl+0x68/0x84\n dump_stack+0x1c/0x38\n panic+0x214/0x404\n add_taint+0x0/0xf8\n panic_bad_stack+0x144/0x160\n handle_bad_stack+0x38/0x58\n __bad_stack+0x78/0x7c\n __rcu_irq_enter_check_tick+0x0/0x1b8\n arm64_enter_el1_dbg.isra.0+0x14/0x20\n el1_dbg+0x2c/0x90\n el1h_64_sync_handler+0xcc/0xe8\n el1h_64_sync+0x64/0x68\n __rcu_irq_enter_check_tick+0x0/0x1b8\n arm64_enter_el1_dbg.isra.0+0x14/0x20\n el1_dbg+0x2c/0x90\n el1h_64_sync_handler+0xcc/0xe8\n el1h_64_sync+0x64/0x68\n __rcu_irq_enter_check_tick+0x0/0x1b8\n arm64_enter_el1_dbg.isra.0+0x14/0x20\n el1_dbg+0x2c/0x90\n el1h_64_sync_handler+0xcc/0xe8\n el1h_64_sync+0x64/0x68\n __rcu_irq_enter_check_tick+0x0/0x1b8\n [...]\n el1_dbg+0x2c/0x90\n el1h_64_sync_handler+0xcc/0xe8\n el1h_64_sync+0x64/0x68\n __rcu_irq_enter_check_tick+0x0/0x1b8\n arm64_enter_el1_dbg.isra.0+0x14/0x20\n el1_dbg+0x2c/0x90\n el1h_64_sync_handler+0xcc/0xe8\n el1h_64_sync+0x64/0x68\n __rcu_irq_enter_check_tick+0x0/0x1b8\n arm64_enter_el1_dbg.isra.0+0x14/0x20\n el1_dbg+0x2c/0x90\n el1h_64_sync_handler+0xcc/0xe8\n el1h_64_sync+0x64/0x68\n __rcu_irq_enter_check_tick+0x0/0x1b8\n el1_interrupt+0x28/0x60\n el1h_64_irq_handler+0x18/0x28\n el1h_64_irq+0x64/0x68\n __ftrace_set_clr_event_nolock+0x98/0x198\n __ftrace_set_clr_event+0x58/0x80\n system_enable_write+0x144/0x178\n vfs_write+0x174/0x738\n ksys_write+0xd0/0x188\n __arm64_sys_write+0x4c/0x60\n invoke_syscall+0x64/0x180\n el0_svc_common.constprop.0+0x84/0x160\n do_el0_svc+0x48/0xe8\n el0_svc+0x34/0xd0\n el0t_64_sync_handler+0xb8/0xc0\n el0t_64_sync+0x190/0x194\nSMP: stopping secondary CPUs\nKernel Offset: 0x28da86000000 from 0xffff800008000000\nPHYS_OFFSET: 0xfffff76600000000\nCPU features: 0x00000,01a00100,0000421b\nMemory Limit: none"
    }
  ],
  "lastModified": "2026-06-17T06:45:48.433",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "76760B6D-B26D-49FF-A946-F832EB4992B6",
              "versionEndExcluding": "5.10.180",
              "versionStartIncluding": "5.8"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2B9DD776-7F17-4F72-B94F-54BFCBC692DD",
              "versionEndExcluding": "5.15.111",
              "versionStartIncluding": "5.11"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "08F855F4-7188-4EE1-BD79-D4B6C7E2EF54",
              "versionEndExcluding": "6.1.28",
              "versionStartIncluding": "5.16"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3844A90B-940D-46C3-8D7B-9FF63F1AFC2F",
              "versionEndExcluding": "6.2.15",
              "versionStartIncluding": "6.2"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "38F6F330-91A0-4675-8B90-6F950471A7CC",
              "versionEndExcluding": "6.3.2",
              "versionStartIncluding": "6.3"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}