nvd-json-data-feeds/CVE-2024/CVE-2024-410xx/CVE-2024-41065.json

{
  "id": "CVE-2024-41065",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-07-29T15:15:14.410",
  "lastModified": "2024-11-21T09:32:10.463",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/pseries: Whitelist dtl slub object for copying to userspace\n\nReading the dispatch trace log from /sys/kernel/debug/powerpc/dtl/cpu-*\nresults in a BUG() when the config CONFIG_HARDENED_USERCOPY is enabled as\nshown below.\n\n    kernel BUG at mm/usercopy.c:102!\n    Oops: Exception in kernel mode, sig: 5 [#1]\n    LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries\n    Modules linked in: xfs libcrc32c dm_service_time sd_mod t10_pi sg ibmvfc\n    scsi_transport_fc ibmveth pseries_wdt dm_multipath dm_mirror dm_region_hash dm_log dm_mod fuse\n    CPU: 27 PID: 1815 Comm: python3 Not tainted 6.10.0-rc3 #85\n    Hardware name: IBM,9040-MRX POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NM1060_042) hv:phyp pSeries\n    NIP:  c0000000005d23d4 LR: c0000000005d23d0 CTR: 00000000006ee6f8\n    REGS: c000000120c078c0 TRAP: 0700   Not tainted  (6.10.0-rc3)\n    MSR:  8000000000029033 <SF,EE,ME,IR,DR,RI,LE>  CR: 2828220f  XER: 0000000e\n    CFAR: c0000000001fdc80 IRQMASK: 0\n    [ ... GPRs omitted ... ]\n    NIP [c0000000005d23d4] usercopy_abort+0x78/0xb0\n    LR [c0000000005d23d0] usercopy_abort+0x74/0xb0\n    Call Trace:\n     usercopy_abort+0x74/0xb0 (unreliable)\n     __check_heap_object+0xf8/0x120\n     check_heap_object+0x218/0x240\n     __check_object_size+0x84/0x1a4\n     dtl_file_read+0x17c/0x2c4\n     full_proxy_read+0x8c/0x110\n     vfs_read+0xdc/0x3a0\n     ksys_read+0x84/0x144\n     system_call_exception+0x124/0x330\n     system_call_vectored_common+0x15c/0x2ec\n    --- interrupt: 3000 at 0x7fff81f3ab34\n\nCommit 6d07d1cd300f (\"usercopy: Restrict non-usercopy caches to size 0\")\nrequires that only whitelisted areas in slab/slub objects can be copied to\nuserspace when usercopy hardening is enabled using CONFIG_HARDENED_USERCOPY.\nDtl contains hypervisor dispatch events which are expected to be read by\nprivileged users. Hence mark this safe for user access.\nSpecify useroffset=0 and usersize=DISPATCH_LOG_BYTES to whitelist the\nentire object."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: powerpc/pseries: incluir en la lista blanca el objeto dtl slub para copiarlo en el espacio de usuario. La lectura del registro de seguimiento de env\u00edo desde /sys/kernel/debug/powerpc/dtl/cpu-* da como resultado un ERROR() cuando la configuraci\u00f3n CONFIG_HARDENED_USERCOPY est\u00e1 habilitada como se muestra a continuaci\u00f3n. \u00a1ERROR del kernel en mm/usercopy.c:102! Vaya: Excepci\u00f3n en modo kernel, sign: 5 [#1] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries M\u00f3dulos vinculados en: xfs libcrc32c dm_service_time sd_mod t10_pi sg ibmvfc scsi_transport_fc ibmveth pseries_wdt dm_multipath dm_mirror _region_hash dm_log dm_mod fusible CPU: 27 PID: 1815 Comm: python3 No contaminado 6.10.0-rc3 #85 Nombre de hardware: IBM,9040-MRX POWER10 (sin procesar) 0x800200 0xf000006 de:IBM,FW1060.00 (NM1060_042) hv:phyp pSeries NIP: c0000000005d23d4 LR: c0000000005d23d0 CTR : 00000000006ee6f8 REGS: c000000120c078c0 TRAP: 0700 No contaminado (6.10.0-rc3) MSR: 8000000000029033  CR: 2828220f XER: 0000000e CFAR: 00000001fdc80 M\u00c1SCARA IRQ: 0 [ .. GPR omitidos... ] NIP [c0000000005d23d4] usercopy_abort+0x78/0xb0 LR [c0000000005d23d0] usercopy_abort+0x74/0xb0 Seguimiento de llamadas: usercopy_abort+0x74/0xb0 (no confiable) __check_heap_object+0xf8/0x 120 check_heap_object+0x218/0x240 __check_object_size+0x84/ 0x1a4 dtl_file_read+0x17c/0x2c4 full_proxy_read+0x8c/0x110 vfs_read+0xdc/0x3a0 ksys_read+0x84/0x144 system_call_exception+0x124/0x330 system_call_vectored_common+0x15c/0x2ec --- interrupci\u00f3n: 3000 0x7fff81f3ab34 Confirmaci\u00f3n 6d07d1cd300f (\"copia de usuario: restringir cach\u00e9s que no sean de copia de usuario) a tama\u00f1o 0\") requiere que solo las \u00e1reas incluidas en la lista blanca en objetos de losa/slub se puedan copiar al espacio de usuario cuando el refuerzo de copia de usuario est\u00e1 habilitado usando CONFIG_HARDENED_USERCOPY. Dtl contiene eventos de env\u00edo del hipervisor que se espera que sean le\u00eddos por usuarios privilegiados. Por lo tanto, marque esto como seguro para el acceso de los usuarios. Especifique useroffset=0 y usersize=DISPATCH_LOG_BYTES para incluir todo el objeto en la lista blanca."
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0f5892212c27be31792ef1daa89c8dac1b3047e4",
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      "url": "https://git.kernel.org/stable/c/1a14150e1656f7a332a943154fc486504db4d586",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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    {
      "url": "https://git.kernel.org/stable/c/1ee68686d1e2a5da35d5650be0be1ce06fe2ceb2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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    {
      "url": "https://git.kernel.org/stable/c/6b16098148ea58a67430d90e20476be2377c3acd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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    {
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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    {
      "url": "https://git.kernel.org/stable/c/0f5892212c27be31792ef1daa89c8dac1b3047e4",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://git.kernel.org/stable/c/1a14150e1656f7a332a943154fc486504db4d586",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "https://git.kernel.org/stable/c/6b16098148ea58a67430d90e20476be2377c3acd",
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      "url": "https://git.kernel.org/stable/c/a7b952941ce07e1e7a2cafd08c64a98e14f553e6",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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}