CVE-2021-47252 (GCVE-0-2021-47252)
Vulnerability from cvelistv5
Published
2024-05-21 14:19
Modified
2025-05-04 07:07
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: batman-adv: Avoid WARN_ON timing related checks The soft/batadv interface for a queued OGM can be changed during the time the OGM was queued for transmission and when the OGM is actually transmitted by the worker. But WARN_ON must be used to denote kernel bugs and not to print simple warnings. A warning can simply be printed using pr_warn.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/282baa8104af44e04c4af3e7f933b44267c7f86f Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/2eb4e0b3631832a4291c8bf4c9db873f60b128c8 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/45011f2973f6b52cf50db397bb27bf805f5f0e7f Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/6031daaaf6d5c359c99dfffa102e332df234ff09 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/77a99aad5bc3ea105806ebae6be3cbadc2fc615e Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/9f460ae31c4435fd022c443a6029352217a16ac1 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/e7fbd8184fa9e85f0d648c499841cb7ff6dec9f4 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/e8e9d2968a9d08bf5c683afca182f1537edebf8d Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/282baa8104af44e04c4af3e7f933b44267c7f86f Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/2eb4e0b3631832a4291c8bf4c9db873f60b128c8 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/45011f2973f6b52cf50db397bb27bf805f5f0e7f Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/6031daaaf6d5c359c99dfffa102e332df234ff09 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/77a99aad5bc3ea105806ebae6be3cbadc2fc615e Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/9f460ae31c4435fd022c443a6029352217a16ac1 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/e7fbd8184fa9e85f0d648c499841cb7ff6dec9f4 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/e8e9d2968a9d08bf5c683afca182f1537edebf8d Patch
Impacted products
Vendor Product Version
Linux Linux Version: ef0a937f7a1450d3a133ccd83c9c7d07587e7a00
Version: ef0a937f7a1450d3a133ccd83c9c7d07587e7a00
Version: ef0a937f7a1450d3a133ccd83c9c7d07587e7a00
Version: ef0a937f7a1450d3a133ccd83c9c7d07587e7a00
Version: ef0a937f7a1450d3a133ccd83c9c7d07587e7a00
Version: ef0a937f7a1450d3a133ccd83c9c7d07587e7a00
Version: ef0a937f7a1450d3a133ccd83c9c7d07587e7a00
Version: ef0a937f7a1450d3a133ccd83c9c7d07587e7a00
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47252\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-21T15:15:14.083\",\"lastModified\":\"2025-04-30T15:12:52.080\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbatman-adv: Avoid WARN_ON timing related checks\\n\\nThe soft/batadv interface for a queued OGM can be changed during the time\\nthe OGM was queued for transmission and when the OGM is actually\\ntransmitted by the worker.\\n\\nBut WARN_ON must be used to denote kernel bugs and not to print simple\\nwarnings. A warning can simply be printed using pr_warn.\"},{\"lang\":\"es\",\"value\":\" En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: batman-adv: Evite comprobaciones relacionadas con el tiempo WARN_ON. La interfaz soft/batadv para un MDS en cola se puede cambiar durante el tiempo que el MDS estuvo en cola para transmisi\u00f3n y cuando el MDS realmente se transmite por el trabajador. Pero WARN_ON debe usarse para indicar errores del kernel y no para imprimir simples advertencias. Una advertencia se puede imprimir simplemente usando 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      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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