CVE-2024-58070

Estado: ModificadaMedia (5.5)—

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

bpf: bpf_local_storage: Always use bpf_mem_alloc in PREEMPT_RT

In PREEMPT_RT, kmalloc(GFP_ATOMIC) is still not safe in non preemptible context. bpf_mem_alloc must be used in PREEMPT_RT. This patch is to enforce bpf_mem_alloc in the bpf_local_storage when CONFIG_PREEMPT_RT is enabled.

There is no need to adjust the gfp_flags passing to the bpf_mem_cache_alloc_flags() which only honors the GFP_KERNEL. The verifier has ensured GFP_KERNEL is passed only in sleepable context.

It has been an old issue since the first introduction of the bpf_local_storage ~5 years ago, so this patch targets the bpf-next.

Leer descripción completaMostrar menos

bpf_mem_alloc is needed to solve it, so the Fixes tag is set to the commit when bpf_mem_alloc was first used in the bpf_local_storage.

Detalles técnicos trazas, registros y código del informe original

[   35.118559] BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48
[   35.118566] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1832, name: test_progs
[   35.118569] preempt_count: 1, expected: 0
[   35.118571] RCU nest depth: 1, expected: 1
[   35.118577] INFO: lockdep is turned off.
    ...
[   35.118647]  __might_resched+0x433/0x5b0
[   35.118677]  rt_spin_lock+0xc3/0x290
[   35.118700]  ___slab_alloc+0x72/0xc40
[   35.118723]  __kmalloc_noprof+0x13f/0x4e0
[   35.118732]  bpf_map_kzalloc+0xe5/0x220
[   35.118740]  bpf_selem_alloc+0x1d2/0x7b0
[   35.118755]  bpf_local_storage_update+0x2fa/0x8b0
[   35.118784]  bpf_sk_storage_get_tracing+0x15a/0x1d0
[   35.118791]  bpf_prog_9a118d86fca78ebb_trace_inet_sock_set_state+0x44/0x66
[   35.118795]  bpf_trace_run3+0x222/0x400
[   35.118820]  __bpf_trace_inet_sock_set_state+0x11/0x20
[   35.118824]  trace_inet_sock_set_state+0x112/0x130
[   35.118830]  inet_sk_state_store+0x41/0x90
[   35.118836]  tcp_set_state+0x3b3/0x640

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: 0.15%
Percentil entre todas las CVEs puntuadas: 3
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-667
CWE-667

Referencias

JSON original (NVD)

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{
  "id": "CVE-2024-58070",
  "cveTags": [],
  "metrics": {
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      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "id": "CVE-2024-58070",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-10-01T19:27:34.371519Z"
        }
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
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        "exploitabilityScore": 1.8
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          "integrityImpact": "NONE",
          "userInteraction": "NONE",
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          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
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        "exploitabilityScore": 1.8
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          "product": "Linux",
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              "versionType": "git"
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              "status": "affected",
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              "lessThan": "8eef6ac4d70eb1f0099fff93321d90ce8fa49ee1",
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          "programFiles": [
            "kernel/bpf/bpf_local_storage.c"
          ],
          "defaultStatus": "unaffected"
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        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.4",
              "versionType": "semver"
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            {
              "status": "unaffected",
              "version": "6.6.76",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
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            {
              "status": "unaffected",
              "version": "6.12.13",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
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              "status": "unaffected",
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              "status": "unaffected",
              "version": "6.14",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
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          ],
          "programFiles": [
            "kernel/bpf/bpf_local_storage.c"
          ],
          "defaultStatus": "affected"
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  "published": "2025-03-06T16:15:53.480",
  "references": [
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      "url": "https://git.kernel.org/stable/c/3392fa605d7c5708c5fbe02e4fbdac547c3b7352",
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      "url": "https://git.kernel.org/stable/c/8eef6ac4d70eb1f0099fff93321d90ce8fa49ee1",
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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      "url": "https://git.kernel.org/stable/c/c1d398a3af7e59d7fef351c84fed7ebb575d1f1a",
      "tags": [
        "Patch"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-667"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-667"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: bpf_local_storage: Always use bpf_mem_alloc in PREEMPT_RT\n\nIn PREEMPT_RT, kmalloc(GFP_ATOMIC) is still not safe in non preemptible\ncontext. bpf_mem_alloc must be used in PREEMPT_RT. This patch is\nto enforce bpf_mem_alloc in the bpf_local_storage when CONFIG_PREEMPT_RT\nis enabled.\n\n[   35.118559] BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48\n[   35.118566] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1832, name: test_progs\n[   35.118569] preempt_count: 1, expected: 0\n[   35.118571] RCU nest depth: 1, expected: 1\n[   35.118577] INFO: lockdep is turned off.\n    ...\n[   35.118647]  __might_resched+0x433/0x5b0\n[   35.118677]  rt_spin_lock+0xc3/0x290\n[   35.118700]  ___slab_alloc+0x72/0xc40\n[   35.118723]  __kmalloc_noprof+0x13f/0x4e0\n[   35.118732]  bpf_map_kzalloc+0xe5/0x220\n[   35.118740]  bpf_selem_alloc+0x1d2/0x7b0\n[   35.118755]  bpf_local_storage_update+0x2fa/0x8b0\n[   35.118784]  bpf_sk_storage_get_tracing+0x15a/0x1d0\n[   35.118791]  bpf_prog_9a118d86fca78ebb_trace_inet_sock_set_state+0x44/0x66\n[   35.118795]  bpf_trace_run3+0x222/0x400\n[   35.118820]  __bpf_trace_inet_sock_set_state+0x11/0x20\n[   35.118824]  trace_inet_sock_set_state+0x112/0x130\n[   35.118830]  inet_sk_state_store+0x41/0x90\n[   35.118836]  tcp_set_state+0x3b3/0x640\n\nThere is no need to adjust the gfp_flags passing to the\nbpf_mem_cache_alloc_flags() which only honors the GFP_KERNEL.\nThe verifier has ensured GFP_KERNEL is passed only in sleepable context.\n\nIt has been an old issue since the first introduction of the\nbpf_local_storage ~5 years ago, so this patch targets the bpf-next.\n\nbpf_mem_alloc is needed to solve it, so the Fixes tag is set\nto the commit when bpf_mem_alloc was first used in the bpf_local_storage."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad:  bpf: bpf_local_storage: Always use bpf_mem_alloc in PREEMPT_RT In PREEMPT_RT, kmalloc(GFP_ATOMIC) is still not safe in non preemptible context. bpf_mem_alloc must be used in PREEMPT_RT. This patch is to enforce bpf_mem_alloc in the bpf_local_storage when CONFIG_PREEMPT_RT is enabled. [ 35.118559] BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48 [ 35.118566] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1832, name: test_progs [ 35.118569] preempt_count: 1, expected: 0 [ 35.118571] RCU nest depth: 1, expected: 1 [ 35.118577] INFO: lockdep is turned off. ... [ 35.118647] __might_resched+0x433/0x5b0 [ 35.118677] rt_spin_lock+0xc3/0x290 [ 35.118700] ___slab_alloc+0x72/0xc40 [ 35.118723] __kmalloc_noprof+0x13f/0x4e0 [ 35.118732] bpf_map_kzalloc+0xe5/0x220 [ 35.118740] bpf_selem_alloc+0x1d2/0x7b0 [ 35.118755] bpf_local_storage_update+0x2fa/0x8b0 [ 35.118784] bpf_sk_storage_get_tracing+0x15a/0x1d0 [ 35.118791] bpf_prog_9a118d86fca78ebb_trace_inet_sock_set_state+0x44/0x66 [ 35.118795] bpf_trace_run3+0x222/0x400 [ 35.118820] __bpf_trace_inet_sock_set_state+0x11/0x20 [ 35.118824] trace_inet_sock_set_state+0x112/0x130 [ 35.118830] inet_sk_state_store+0x41/0x90 [ 35.118836] tcp_set_state+0x3b3/0x640 No es necesario ajustar el gfp_flags que se pasa a bpf_mem_cache_alloc_flags() que solo respeta el GFP_KERNEL. El verificador se ha asegurado de que GFP_KERNEL se pase solo en un contexto en el que se pueda dormir. Ha sido un problema antiguo desde la primera introducción de bpf_local_storage hace unos 5 años, por lo que este parche apunta a bpf-next. Se necesita bpf_mem_alloc para resolverlo, por lo que la etiqueta Fixes se establece en el commit cuando bpf_mem_alloc se utilizó por primera vez en bpf_local_storage."
    }
  ],
  "lastModified": "2026-08-04T11:22:37.650",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}