cve-2024-36930
Vulnerability from cvelistv5
Published
2024-05-30 15:29
Modified
2024-09-11 17:34
Severity
Summary
spi: fix null pointer dereference within spi_sync
References
SourceURLTags
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2070d008cc08bff50a58f0f4d30f12d3ebf94c00Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4756fa529b2f12b7cb8f21fe229b0f6f47190829Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a30659f1576d2c8e62e7426232bb18b885fd951aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e005d6754e3e440257006795b687c4ad8733b493Patch
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
Show details on NVD website

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          "product": "Linux",
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              "version": "6.6.31",
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: fix null pointer dereference within spi_sync\n\nIf spi_sync() is called with the non-empty queue and the same spi_message\nis then reused, the complete callback for the message remains set while\nthe context is cleared, leading to a null pointer dereference when the\ncallback is invoked from spi_finalize_current_message().\n\nWith function inlining disabled, the call stack might look like this:\n\n  _raw_spin_lock_irqsave from complete_with_flags+0x18/0x58\n  complete_with_flags from spi_complete+0x8/0xc\n  spi_complete from spi_finalize_current_message+0xec/0x184\n  spi_finalize_current_message from spi_transfer_one_message+0x2a8/0x474\n  spi_transfer_one_message from __spi_pump_transfer_message+0x104/0x230\n  __spi_pump_transfer_message from __spi_transfer_message_noqueue+0x30/0xc4\n  __spi_transfer_message_noqueue from __spi_sync+0x204/0x248\n  __spi_sync from spi_sync+0x24/0x3c\n  spi_sync from mcp251xfd_regmap_crc_read+0x124/0x28c [mcp251xfd]\n  mcp251xfd_regmap_crc_read [mcp251xfd] from _regmap_raw_read+0xf8/0x154\n  _regmap_raw_read from _regmap_bus_read+0x44/0x70\n  _regmap_bus_read from _regmap_read+0x60/0xd8\n  _regmap_read from regmap_read+0x3c/0x5c\n  regmap_read from mcp251xfd_alloc_can_err_skb+0x1c/0x54 [mcp251xfd]\n  mcp251xfd_alloc_can_err_skb [mcp251xfd] from mcp251xfd_irq+0x194/0xe70 [mcp251xfd]\n  mcp251xfd_irq [mcp251xfd] from irq_thread_fn+0x1c/0x78\n  irq_thread_fn from irq_thread+0x118/0x1f4\n  irq_thread from kthread+0xd8/0xf4\n  kthread from ret_from_fork+0x14/0x28\n\nFix this by also setting message-\u003ecomplete to NULL when the transfer is\ncomplete."
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      "title": "spi: fix null pointer dereference within spi_sync",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-36930",
    "datePublished": "2024-05-30T15:29:22.012Z",
    "dateReserved": "2024-05-30T15:25:07.070Z",
    "dateUpdated": "2024-09-11T17:34:59.754Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.1",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-36930\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-30T16:15:16.217\",\"lastModified\":\"2024-06-10T19:20:48.797\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nspi: fix null pointer dereference within spi_sync\\n\\nIf spi_sync() is called with the non-empty queue and the same spi_message\\nis then reused, the complete callback for the message remains set while\\nthe context is cleared, leading to a null pointer dereference when the\\ncallback is invoked from spi_finalize_current_message().\\n\\nWith function inlining disabled, the call stack might look like this:\\n\\n  _raw_spin_lock_irqsave from complete_with_flags+0x18/0x58\\n  complete_with_flags from spi_complete+0x8/0xc\\n  spi_complete from spi_finalize_current_message+0xec/0x184\\n  spi_finalize_current_message from spi_transfer_one_message+0x2a8/0x474\\n  spi_transfer_one_message from __spi_pump_transfer_message+0x104/0x230\\n  __spi_pump_transfer_message from __spi_transfer_message_noqueue+0x30/0xc4\\n  __spi_transfer_message_noqueue from __spi_sync+0x204/0x248\\n  __spi_sync from spi_sync+0x24/0x3c\\n  spi_sync from mcp251xfd_regmap_crc_read+0x124/0x28c [mcp251xfd]\\n  mcp251xfd_regmap_crc_read [mcp251xfd] from _regmap_raw_read+0xf8/0x154\\n  _regmap_raw_read from _regmap_bus_read+0x44/0x70\\n  _regmap_bus_read from _regmap_read+0x60/0xd8\\n  _regmap_read from regmap_read+0x3c/0x5c\\n  regmap_read from mcp251xfd_alloc_can_err_skb+0x1c/0x54 [mcp251xfd]\\n  mcp251xfd_alloc_can_err_skb [mcp251xfd] from mcp251xfd_irq+0x194/0xe70 [mcp251xfd]\\n  mcp251xfd_irq [mcp251xfd] from irq_thread_fn+0x1c/0x78\\n  irq_thread_fn from irq_thread+0x118/0x1f4\\n  irq_thread from kthread+0xd8/0xf4\\n  kthread from ret_from_fork+0x14/0x28\\n\\nFix this by also setting message-\u003ecomplete to NULL when the transfer is\\ncomplete.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: spi: corrige la desreferencia del puntero nulo dentro de spi_sync Si se llama a spi_sync() con la cola no vac\u00eda y luego se reutiliza el mismo spi_message, la devoluci\u00f3n de llamada completa para el mensaje permanece configurada mientras el el contexto se borra, lo que lleva a una desreferencia del puntero nulo cuando se invoca la devoluci\u00f3n de llamada desde spi_finalize_current_message(). Con la funci\u00f3n incorporada deshabilitada, la pila de llamadas podr\u00eda verse as\u00ed: _raw_spin_lock_irqsave from complete_with_flags+0x18/0x58 complete_with_flags from spi_complete+0x8/0xc spi_complete from spi_finalize_current_message+0xec/0x184 spi_finalize_current_message from spi_transfer_one_message+0x2 a8/0x474 spi_transfer_one_message de __spi_pump_transfer_message+0x104/0x230 __spi_pump_transfer_message de __spi_transfer_message_noqueue+0x30/0xc4 __spi_transfer_message_noqueue de __spi_sync+0x204/0x248 __spi_sync de spi_sync+0x24/0x3c spi_sync de mcp251xfd_regmap_crc_read+0x124/0x28c fd] mcp251xfd_regmap_crc_read [mcp251xfd] de _regmap_raw_read+0xf8/0x154 _regmap_raw_read de _regmap_bus_read+0x44/0x70 _regmap_bus_read de _regmap_read+ 0x60/0xd8 _regmap_read de regmap_read+0x3c/0x5c regmap_read de mcp251xfd_alloc_can_err_skb+0x1c/0x54 [mcp251xfd] mcp251xfd_alloc_can_err_skb [mcp251xfd] de mcp251xfd_irq+0x19 4/0xe70 [mcp251xfd] mcp251xfd_irq [mcp251xfd] de irq_thread_fn+0x1c/0x78 irq_thread_fn de irq_thread+0x118/0x1f4 irq_thread de kthread+0xd8/0xf4 kthread de ret_from_fork+0x14/0x28 Solucione este problema configurando tambi\u00e9n mensaje-\u0026gt;completo en NULL cuando se complete la transferencia.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.0\",\"versionEndExcluding\":\"6.1.91\",\"matchCriteriaId\":\"54C26F9A-8376-491B-B07E-65C07B72B8D9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.31\",\"matchCriteriaId\":\"CDDB1F69-36AC-41C1-9192-E7CCEF5FFC00\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.8.10\",\"matchCriteriaId\":\"6A6B920C-8D8F-4130-86B4-AD334F4CF2E3\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2070d008cc08bff50a58f0f4d30f12d3ebf94c00\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4756fa529b2f12b7cb8f21fe229b0f6f47190829\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a30659f1576d2c8e62e7426232bb18b885fd951a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e005d6754e3e440257006795b687c4ad8733b493\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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