{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: Fix use-after-free in rdata->read_into_pages()\n\nWhen the network status is unstable, use-after-free may occur when\nread data from the server.\n\n  BUG: KASAN: use-after-free in readpages_fill_pages+0x14c/0x7e0\n\n  Call Trace:\n   <TASK>\n   dump_stack_lvl+0x38/0x4c\n   print_report+0x16f/0x4a6\n   kasan_report+0xb7/0x130\n   readpages_fill_pages+0x14c/0x7e0\n   cifs_readv_receive+0x46d/0xa40\n   cifs_demultiplex_thread+0x121c/0x1490\n   kthread+0x16b/0x1a0\n   ret_from_fork+0x2c/0x50\n   </TASK>\n\n  Allocated by task 2535:\n   kasan_save_stack+0x22/0x50\n   kasan_set_track+0x25/0x30\n   __kasan_kmalloc+0x82/0x90\n   cifs_readdata_direct_alloc+0x2c/0x110\n   cifs_readdata_alloc+0x2d/0x60\n   cifs_readahead+0x393/0xfe0\n   read_pages+0x12f/0x470\n   page_cache_ra_unbounded+0x1b1/0x240\n   filemap_get_pages+0x1c8/0x9a0\n   filemap_read+0x1c0/0x540\n   cifs_strict_readv+0x21b/0x240\n   vfs_read+0x395/0x4b0\n   ksys_read+0xb8/0x150\n   do_syscall_64+0x3f/0x90\n   entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\n  Freed by task 79:\n   kasan_save_stack+0x22/0x50\n   kasan_set_track+0x25/0x30\n   kasan_save_free_info+0x2e/0x50\n   __kasan_slab_free+0x10e/0x1a0\n   __kmem_cache_free+0x7a/0x1a0\n   cifs_readdata_release+0x49/0x60\n   process_one_work+0x46c/0x760\n   worker_thread+0x2a4/0x6f0\n   kthread+0x16b/0x1a0\n   ret_from_fork+0x2c/0x50\n\n  Last potentially related work creation:\n   kasan_save_stack+0x22/0x50\n   __kasan_record_aux_stack+0x95/0xb0\n   insert_work+0x2b/0x130\n   __queue_work+0x1fe/0x660\n   queue_work_on+0x4b/0x60\n   smb2_readv_callback+0x396/0x800\n   cifs_abort_connection+0x474/0x6a0\n   cifs_reconnect+0x5cb/0xa50\n   cifs_readv_from_socket.cold+0x22/0x6c\n   cifs_read_page_from_socket+0xc1/0x100\n   readpages_fill_pages.cold+0x2f/0x46\n   cifs_readv_receive+0x46d/0xa40\n   cifs_demultiplex_thread+0x121c/0x1490\n   kthread+0x16b/0x1a0\n   ret_from_fork+0x2c/0x50\n\nThe following function calls will cause UAF of the rdata pointer.\n\nreadpages_fill_pages\n cifs_read_page_from_socket\n  cifs_readv_from_socket\n   cifs_reconnect\n    __cifs_reconnect\n     cifs_abort_connection\n      mid->callback() --> smb2_readv_callback\n       queue_work(&rdata->work)  # if the worker completes first,\n                                 # the rdata is freed\n          cifs_readv_complete\n            kref_put\n              cifs_readdata_release\n                kfree(rdata)\n return rdata->...               # UAF in readpages_fill_pages()\n\nSimilarly, this problem also occurs in the uncache_fill_pages().\n\nFix this by adjusts the order of condition judgment in the return\nstatement."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/cifs/file.c"
               ],
               "versions": [
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "2b693fe3f760",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "d1fba1e096ff",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "3684a2f6affa",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "aa5465aeca3c",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/cifs/file.c"
               ],
               "versions": [
                  {
                     "version": "5.10.168",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.94",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.12",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.2",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/2b693fe3f760c87fd9768e759f6297f743a1b3b0"
            },
            {
               "url": "https://git.kernel.org/stable/c/d1fba1e096ffc7ec11df863a97c50203c47315b9"
            },
            {
               "url": "https://git.kernel.org/stable/c/3684a2f6affa1ca52a5d4a12f04d0652efdee65e"
            },
            {
               "url": "https://git.kernel.org/stable/c/aa5465aeca3c66fecdf7efcf554aed79b4c4b211"
            }
         ],
         "title": "cifs: Fix use-after-free in rdata->read_into_pages()",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2023-52741",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}