nvd-json-data-feeds/CVE-2024/CVE-2024-410xx/CVE-2024-41083.json

{
  "id": "CVE-2024-41083",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-07-29T16:15:03.790",
  "lastModified": "2024-07-29T16:21:52.517",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix netfs_page_mkwrite() to check folio->mapping is valid\n\nFix netfs_page_mkwrite() to check that folio->mapping is valid once it has\ntaken the folio lock (as filemap_page_mkwrite() does).  Without this,\ngeneric/247 occasionally oopses with something like the following:\n\n    BUG: kernel NULL pointer dereference, address: 0000000000000000\n    #PF: supervisor read access in kernel mode\n    #PF: error_code(0x0000) - not-present page\n\n    RIP: 0010:trace_event_raw_event_netfs_folio+0x61/0xc0\n    ...\n    Call Trace:\n     <TASK>\n     ? __die_body+0x1a/0x60\n     ? page_fault_oops+0x6e/0xa0\n     ? exc_page_fault+0xc2/0xe0\n     ? asm_exc_page_fault+0x22/0x30\n     ? trace_event_raw_event_netfs_folio+0x61/0xc0\n     trace_netfs_folio+0x39/0x40\n     netfs_page_mkwrite+0x14c/0x1d0\n     do_page_mkwrite+0x50/0x90\n     do_pte_missing+0x184/0x200\n     __handle_mm_fault+0x42d/0x500\n     handle_mm_fault+0x121/0x1f0\n     do_user_addr_fault+0x23e/0x3c0\n     exc_page_fault+0xc2/0xe0\n     asm_exc_page_fault+0x22/0x30\n\nThis is due to the invalidate_inode_pages2_range() issued at the end of the\nDIO write interfering with the mmap'd writes."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfs: corrija netfs_page_mkwrite() para verificar que folio-&gt;mapping sea v\u00e1lido. Corrija netfs_page_mkwrite() para verificar que folio-&gt;mapping sea v\u00e1lido una vez que haya tomado el bloqueo de folio (como filemap_page_mkwrite( ) hace). Sin esto, generic/247 ocasionalmente falla con algo como lo siguiente: ERROR: desreferencia del puntero NULL del kernel, direcci\u00f3n: 0000000000000000 #PF: acceso de lectura del supervisor en modo kernel #PF: error_code(0x0000) - p\u00e1gina no presente RIP: 0010:trace_event_raw_event_netfs_folio +0x61/0xc0... Seguimiento de llamadas: ? __die_body+0x1a/0x60 ? page_fault_oops+0x6e/0xa0? exc_page_fault+0xc2/0xe0? asm_exc_page_fault+0x22/0x30? trace_event_raw_event_netfs_folio+0x61/0xc0 trace_netfs_folio+0x39/0x40 netfs_page_mkwrite+0x14c/0x1d0 do_page_mkwrite+0x50/0x90 do_pte_missing+0x184/0x200 __handle_mm_fault+0x42d/0x500 _fault+0x121/0x1f0 do_user_addr_fault+0x23e/0x3c0 exc_page_fault+0xc2/0xe0 asm_exc_page_fault+0x22/0x30 Esto se debe a que invalidate_inode_pages2_range() emitido al final de la escritura DIO interfiere con las escrituras mmap."
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/3473eb87afd402e415a8ca885b284ea0420dde25",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a81c98bfa40c11f8ea79b5a9b3f5fda73bfbb4d2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}