CVE-2024-50203 (GCVE-0-2024-50203)

Vulnerability from cvelistv5 – Published: 2024-11-08 06:07 – Updated: 2026-08-05 11:42
VLAI
Title
bpf, arm64: Fix address emission with tag-based KASAN enabled
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fix address emission with tag-based KASAN enabled When BPF_TRAMP_F_CALL_ORIG is enabled, the address of a bpf_tramp_image struct on the stack is passed during the size calculation pass and an address on the heap is passed during code generation. This may cause a heap buffer overflow if the heap address is tagged because emit_a64_mov_i64() will emit longer code than it did during the size calculation pass. The same problem could occur without tag-based KASAN if one of the 16-bit words of the stack address happened to be all-ones during the size calculation pass. Fix the problem by assuming the worst case (4 instructions) when calculating the size of the bpf_tramp_image address emission.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 077149478497b2f00ff4fd9da2c892defa6418d8 , < 9e80f366ebfdfafc685fe83a84c34f7ef01cbe88 (git)
Affected: d9664e6ff040798a46cdc5d401064f55b8676c83 , < f521c2a0c0c4585f36d912bf62c852b88682c4f2 (git)
Affected: 19d3c179a37730caf600a97fed3794feac2b197b , < 7db1a2121f3c7903b8e397392beec563c3d00950 (git)
Affected: 19d3c179a37730caf600a97fed3794feac2b197b , < a552e2ef5fd1a6c78267cd4ec5a9b49aa11bbb1c (git)
Affected: 6d218fcc707d6b2c3616b6cd24b948fd4825cfec (git)
Affected: 6.10.3 , < 6.11 (semver)
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Linux Linux Affected: 6.11
Unaffected: 0 , < 6.11 (semver)
Unaffected: 6.11.6 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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Fix the problem by\\nassuming the worst case (4 instructions) when calculating the size\\nof the bpf_tramp_image address emission.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf, arm64: Se corrige la emisi\u00f3n de direcciones con KASAN basado en etiquetas habilitado Cuando BPF_TRAMP_F_CALL_ORIG est\u00e1 habilitado, la direcci\u00f3n de una estructura bpf_tramp_image en la pila se pasa durante el paso de c\u00e1lculo de tama\u00f1o y se pasa una direcci\u00f3n en el mont\u00f3n durante la generaci\u00f3n de c\u00f3digo. Esto puede causar un desbordamiento del b\u00fafer del mont\u00f3n si la direcci\u00f3n del mont\u00f3n est\u00e1 etiquetada porque emit_a64_mov_i64() emitir\u00e1 un c\u00f3digo m\u00e1s largo que el que emiti\u00f3 durante el paso de c\u00e1lculo de tama\u00f1o. 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T14:13:14+00:00",
      "cve": "CVE-2024-50203",
      "id": "CVE-2024-50203",
      "initial_release_date": "2024-11-08T00:00:00+00:00",
      "product_status:known_affected": "48",
      "product_status:known_not_affected": "150",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: bpf, arm64: Fix address emission with tag-based KASAN enabled",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-50203.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-25T01:26:36Z",
      "cve": "CVE-2024-50203",
      "id": "CVE-2024-50203",
      "initial_release_date": "2024-11-09T03:48:42Z",
      "product_status:known_affected": "398",
      "product_status:known_not_affected": "372",
      "product_status:recommended": "310",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-50203",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-50203.json",
      "version": "63"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.