cve-2022-48871
Vulnerability from cvelistv5
Published
2024-08-21 06:10
Modified
2024-12-19 08:09
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: tty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer Driver's probe allocates memory for RX FIFO (port->rx_fifo) based on default RX FIFO depth, e.g. 16. Later during serial startup the qcom_geni_serial_port_setup() updates the RX FIFO depth (port->rx_fifo_depth) to match real device capabilities, e.g. to 32. The RX UART handle code will read "port->rx_fifo_depth" number of words into "port->rx_fifo" buffer, thus exceeding the bounds. This can be observed in certain configurations with Qualcomm Bluetooth HCI UART device and KASAN: Bluetooth: hci0: QCA Product ID :0x00000010 Bluetooth: hci0: QCA SOC Version :0x400a0200 Bluetooth: hci0: QCA ROM Version :0x00000200 Bluetooth: hci0: QCA Patch Version:0x00000d2b Bluetooth: hci0: QCA controller version 0x02000200 Bluetooth: hci0: QCA Downloading qca/htbtfw20.tlv bluetooth hci0: Direct firmware load for qca/htbtfw20.tlv failed with error -2 Bluetooth: hci0: QCA Failed to request file: qca/htbtfw20.tlv (-2) Bluetooth: hci0: QCA Failed to download patch (-2) ================================================================== BUG: KASAN: slab-out-of-bounds in handle_rx_uart+0xa8/0x18c Write of size 4 at addr ffff279347d578c0 by task swapper/0/0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.0-rt5-00350-gb2450b7e00be-dirty #26 Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT) Call trace: dump_backtrace.part.0+0xe0/0xf0 show_stack+0x18/0x40 dump_stack_lvl+0x8c/0xb8 print_report+0x188/0x488 kasan_report+0xb4/0x100 __asan_store4+0x80/0xa4 handle_rx_uart+0xa8/0x18c qcom_geni_serial_handle_rx+0x84/0x9c qcom_geni_serial_isr+0x24c/0x760 __handle_irq_event_percpu+0x108/0x500 handle_irq_event+0x6c/0x110 handle_fasteoi_irq+0x138/0x2cc generic_handle_domain_irq+0x48/0x64 If the RX FIFO depth changes after probe, be sure to resize the buffer.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/894681682dbefdad917b88f86cde1069140a047aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b8caf69a6946e18ffebad49847e258f5b6d52ac2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cb53a3366eb28fed67850c80afa52075bb71a38aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fd524ca7fe45b8a06dca2dd546d62684a9768f95Patch
Impacted products
Vendor Product Version
Linux Linux Version: f9d690b6ece7ec9a6ff6b588df95a010ab2d66f9
Version: f9d690b6ece7ec9a6ff6b588df95a010ab2d66f9
Version: f9d690b6ece7ec9a6ff6b588df95a010ab2d66f9
Version: f9d690b6ece7ec9a6ff6b588df95a010ab2d66f9
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   Linux Linux Version: 5.7
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                     content: {
                        id: "CVE-2022-48871",
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                              Exploitation: "none",
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                        timestamp: "2024-09-10T16:05:28.910017Z",
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               lang: "en",
               value: "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer\n\nDriver's probe allocates memory for RX FIFO (port->rx_fifo) based on\ndefault RX FIFO depth, e.g. 16.  Later during serial startup the\nqcom_geni_serial_port_setup() updates the RX FIFO depth\n(port->rx_fifo_depth) to match real device capabilities, e.g. to 32.\n\nThe RX UART handle code will read \"port->rx_fifo_depth\" number of words\ninto \"port->rx_fifo\" buffer, thus exceeding the bounds.  This can be\nobserved in certain configurations with Qualcomm Bluetooth HCI UART\ndevice and KASAN:\n\n  Bluetooth: hci0: QCA Product ID   :0x00000010\n  Bluetooth: hci0: QCA SOC Version  :0x400a0200\n  Bluetooth: hci0: QCA ROM Version  :0x00000200\n  Bluetooth: hci0: QCA Patch Version:0x00000d2b\n  Bluetooth: hci0: QCA controller version 0x02000200\n  Bluetooth: hci0: QCA Downloading qca/htbtfw20.tlv\n  bluetooth hci0: Direct firmware load for qca/htbtfw20.tlv failed with error -2\n  Bluetooth: hci0: QCA Failed to request file: qca/htbtfw20.tlv (-2)\n  Bluetooth: hci0: QCA Failed to download patch (-2)\n  ==================================================================\n  BUG: KASAN: slab-out-of-bounds in handle_rx_uart+0xa8/0x18c\n  Write of size 4 at addr ffff279347d578c0 by task swapper/0/0\n\n  CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.0-rt5-00350-gb2450b7e00be-dirty #26\n  Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT)\n  Call trace:\n   dump_backtrace.part.0+0xe0/0xf0\n   show_stack+0x18/0x40\n   dump_stack_lvl+0x8c/0xb8\n   print_report+0x188/0x488\n   kasan_report+0xb4/0x100\n   __asan_store4+0x80/0xa4\n   handle_rx_uart+0xa8/0x18c\n   qcom_geni_serial_handle_rx+0x84/0x9c\n   qcom_geni_serial_isr+0x24c/0x760\n   __handle_irq_event_percpu+0x108/0x500\n   handle_irq_event+0x6c/0x110\n   handle_fasteoi_irq+0x138/0x2cc\n   generic_handle_domain_irq+0x48/0x64\n\nIf the RX FIFO depth changes after probe, be sure to resize the buffer.",
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            dateUpdated: "2024-12-19T08:09:34.519Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
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         references: [
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               url: "https://git.kernel.org/stable/c/894681682dbefdad917b88f86cde1069140a047a",
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               url: "https://git.kernel.org/stable/c/cb53a3366eb28fed67850c80afa52075bb71a38a",
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               url: "https://git.kernel.org/stable/c/fd524ca7fe45b8a06dca2dd546d62684a9768f95",
            },
            {
               url: "https://git.kernel.org/stable/c/b8caf69a6946e18ffebad49847e258f5b6d52ac2",
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         ],
         title: "tty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer",
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      assignerShortName: "Linux",
      cveId: "CVE-2022-48871",
      datePublished: "2024-08-21T06:10:01.859Z",
      dateReserved: "2024-07-16T11:38:08.921Z",
      dateUpdated: "2024-12-19T08:09:34.519Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
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      nvd: "{\"cve\":{\"id\":\"CVE-2022-48871\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-08-21T07:15:04.207\",\"lastModified\":\"2024-09-06T14:23:03.010\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer\\n\\nDriver's probe allocates memory for RX FIFO (port->rx_fifo) based on\\ndefault RX FIFO depth, e.g. 16.  Later during serial startup the\\nqcom_geni_serial_port_setup() updates the RX FIFO depth\\n(port->rx_fifo_depth) to match real device capabilities, e.g. to 32.\\n\\nThe RX UART handle code will read \\\"port->rx_fifo_depth\\\" number of words\\ninto \\\"port->rx_fifo\\\" buffer, thus exceeding the bounds.  This can be\\nobserved in certain configurations with Qualcomm Bluetooth HCI UART\\ndevice and KASAN:\\n\\n  Bluetooth: hci0: QCA Product ID   :0x00000010\\n  Bluetooth: hci0: QCA SOC Version  :0x400a0200\\n  Bluetooth: hci0: QCA ROM Version  :0x00000200\\n  Bluetooth: hci0: QCA Patch Version:0x00000d2b\\n  Bluetooth: hci0: QCA controller version 0x02000200\\n  Bluetooth: hci0: QCA Downloading qca/htbtfw20.tlv\\n  bluetooth hci0: Direct firmware load for qca/htbtfw20.tlv failed with error -2\\n  Bluetooth: hci0: QCA Failed to request file: qca/htbtfw20.tlv (-2)\\n  Bluetooth: hci0: QCA Failed to download patch (-2)\\n  ==================================================================\\n  BUG: KASAN: slab-out-of-bounds in handle_rx_uart+0xa8/0x18c\\n  Write of size 4 at addr ffff279347d578c0 by task swapper/0/0\\n\\n  CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.0-rt5-00350-gb2450b7e00be-dirty #26\\n  Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT)\\n  Call trace:\\n   dump_backtrace.part.0+0xe0/0xf0\\n   show_stack+0x18/0x40\\n   dump_stack_lvl+0x8c/0xb8\\n   print_report+0x188/0x488\\n   kasan_report+0xb4/0x100\\n   __asan_store4+0x80/0xa4\\n   handle_rx_uart+0xa8/0x18c\\n   qcom_geni_serial_handle_rx+0x84/0x9c\\n   qcom_geni_serial_isr+0x24c/0x760\\n   __handle_irq_event_percpu+0x108/0x500\\n   handle_irq_event+0x6c/0x110\\n   handle_fasteoi_irq+0x138/0x2cc\\n   generic_handle_domain_irq+0x48/0x64\\n\\nIf the RX FIFO depth changes after probe, be sure to resize the buffer.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tty: serial: qcom-geni-serial: corrige los límites fuera de los límites en el búfer RX FIFO La sonda del controlador asigna memoria para RX FIFO (puerto->rx_fifo) según el valor predeterminado Profundidad FIFO de RX, por ejemplo, 16. Más adelante, durante el inicio en serie, qcom_geni_serial_port_setup() actualiza la profundidad FIFO de RX (puerto->rx_fifo_profundidad) para que coincida con las capacidades reales del dispositivo, por ejemplo, a 32. El código de identificador de RX UART leerá el número \\\"puerto->rx_fifo_profundidad\\\" de palabras en el búfer \\\"port->rx_fifo\\\", excediendo así los límites. Esto se puede observar en ciertas configuraciones con el dispositivo Qualcomm Bluetooth HCI UART y KASAN: Bluetooth: hci0: QCA ID de producto: 0x00000010 Bluetooth: hci0: QCA SOC Version: 0x400a0200 Bluetooth: hci0: QCA ROM Version: 0x00000200 Bluetooth: hci0: QCA Patch Version :0x00000d2b Bluetooth: hci0: versión del controlador QCA 0x02000200 Bluetooth: hci0: QCA Descargando qca/htbtfw20.tlv bluetooth hci0: La carga directa del firmware para qca/htbtfw20.tlv falló con el error -2 Bluetooth: hci0: QCA No se pudo solicitar el archivo: qca/ htbtfw20.tlv (-2) Bluetooth: hci0: QCA Error al descargar el parche (-2) =============================== ==================================== ERROR: KASAN: losa fuera de los límites en handle_rx_uart+ 0xa8/0x18c Escritura de tamaño 4 en la dirección ffff279347d578c0 mediante task swapper/0/0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.0-rt5-00350-gb2450b7e00be-dirty #26 Nombre de hardware: Qualcomm Technologies, Inc Robótica RB5 (DT) Seguimiento de llamadas: dump_backtrace.part.0+0xe0/0xf0 show_stack+0x18/0x40 dump_stack_lvl+0x8c/0xb8 print_report+0x188/0x488 kasan_report+0xb4/0x100 __asan_store4+0x80/0xa4 handle_rx_uart+0xa. 8/0x18c qcom_geni_serial_handle_rx+ 0x84/0x9c qcom_geni_serial_isr+0x24c/0x760 __handle_irq_event_percpu+0x108/0x500 handle_irq_event+0x6c/0x110 handle_fasteoi_irq+0x138/0x2cc generic_handle_domain_irq+0x48/0x64 Si la profundidad FIFO de RX cambia después sonda, asegúrese de cambiar el tamaño del búfer.\"}],\"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:H/I:N/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.2}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.7\",\"versionEndExcluding\":\"5.10.165\",\"matchCriteriaId\":\"5D1B38E6-531E-4689-A204-9E0178E886F5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.90\",\"matchCriteriaId\":\"E995CDA5-7223-4FDB-BAD3-81B22C763A43\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.8\",\"matchCriteriaId\":\"A6AFE6C9-3F59-4711-B2CF-7D6682FF6BD0\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/894681682dbefdad917b88f86cde1069140a047a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b8caf69a6946e18ffebad49847e258f5b6d52ac2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cb53a3366eb28fed67850c80afa52075bb71a38a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fd524ca7fe45b8a06dca2dd546d62684a9768f95\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
      vulnrichment: {
         containers: "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-48871\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T16:05:28.910017Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:11.934Z\"}}], \"cna\": {\"title\": \"tty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"f9d690b6ece7\", \"lessThan\": \"894681682dbe\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f9d690b6ece7\", \"lessThan\": \"cb53a3366eb2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f9d690b6ece7\", \"lessThan\": \"fd524ca7fe45\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f9d690b6ece7\", \"lessThan\": \"b8caf69a6946\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/tty/serial/qcom_geni_serial.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.7\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.7\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.165\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.90\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.8\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.2\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/tty/serial/qcom_geni_serial.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/894681682dbefdad917b88f86cde1069140a047a\"}, {\"url\": \"https://git.kernel.org/stable/c/cb53a3366eb28fed67850c80afa52075bb71a38a\"}, {\"url\": \"https://git.kernel.org/stable/c/fd524ca7fe45b8a06dca2dd546d62684a9768f95\"}, {\"url\": \"https://git.kernel.org/stable/c/b8caf69a6946e18ffebad49847e258f5b6d52ac2\"}], \"x_generator\": {\"engine\": \"bippy-9e1c9544281a\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer\\n\\nDriver's probe allocates memory for RX FIFO (port->rx_fifo) based on\\ndefault RX FIFO depth, e.g. 16.  Later during serial startup the\\nqcom_geni_serial_port_setup() updates the RX FIFO depth\\n(port->rx_fifo_depth) to match real device capabilities, e.g. to 32.\\n\\nThe RX UART handle code will read \\\"port->rx_fifo_depth\\\" number of words\\ninto \\\"port->rx_fifo\\\" buffer, thus exceeding the bounds.  This can be\\nobserved in certain configurations with Qualcomm Bluetooth HCI UART\\ndevice and KASAN:\\n\\n  Bluetooth: hci0: QCA Product ID   :0x00000010\\n  Bluetooth: hci0: QCA SOC Version  :0x400a0200\\n  Bluetooth: hci0: QCA ROM Version  :0x00000200\\n  Bluetooth: hci0: QCA Patch Version:0x00000d2b\\n  Bluetooth: hci0: QCA controller version 0x02000200\\n  Bluetooth: hci0: QCA Downloading qca/htbtfw20.tlv\\n  bluetooth hci0: Direct firmware load for qca/htbtfw20.tlv failed with error -2\\n  Bluetooth: hci0: QCA Failed to request file: qca/htbtfw20.tlv (-2)\\n  Bluetooth: hci0: QCA Failed to download patch (-2)\\n  ==================================================================\\n  BUG: KASAN: slab-out-of-bounds in handle_rx_uart+0xa8/0x18c\\n  Write of size 4 at addr ffff279347d578c0 by task swapper/0/0\\n\\n  CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.0-rt5-00350-gb2450b7e00be-dirty #26\\n  Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT)\\n  Call trace:\\n   dump_backtrace.part.0+0xe0/0xf0\\n   show_stack+0x18/0x40\\n   dump_stack_lvl+0x8c/0xb8\\n   print_report+0x188/0x488\\n   kasan_report+0xb4/0x100\\n   __asan_store4+0x80/0xa4\\n   handle_rx_uart+0xa8/0x18c\\n   qcom_geni_serial_handle_rx+0x84/0x9c\\n   qcom_geni_serial_isr+0x24c/0x760\\n   __handle_irq_event_percpu+0x108/0x500\\n   handle_irq_event+0x6c/0x110\\n   handle_fasteoi_irq+0x138/0x2cc\\n   generic_handle_domain_irq+0x48/0x64\\n\\nIf the RX FIFO depth changes after probe, be sure to resize the buffer.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-04T12:18:13.291Z\"}}}",
         cveMetadata: "{\"cveId\": \"CVE-2022-48871\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-04T12:18:13.291Z\", \"dateReserved\": \"2024-07-16T11:38:08.921Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-08-21T06:10:01.859Z\", \"assignerShortName\": \"Linux\"}",
         dataType: "CVE_RECORD",
         dataVersion: "5.1",
      },
   },
}


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