CVE-2023-52741 (GCVE-0-2023-52741)
Vulnerability from cvelistv5
Published
2024-05-21 15:23
Modified
2026-08-05 09:11
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix use-after-free in rdata->read_into_pages() When the network status is unstable, use-after-free may occur when read data from the server. BUG: KASAN: use-after-free in readpages_fill_pages+0x14c/0x7e0 Call Trace: <TASK> dump_stack_lvl+0x38/0x4c print_report+0x16f/0x4a6 kasan_report+0xb7/0x130 readpages_fill_pages+0x14c/0x7e0 cifs_readv_receive+0x46d/0xa40 cifs_demultiplex_thread+0x121c/0x1490 kthread+0x16b/0x1a0 ret_from_fork+0x2c/0x50 </TASK> Allocated by task 2535: kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_kmalloc+0x82/0x90 cifs_readdata_direct_alloc+0x2c/0x110 cifs_readdata_alloc+0x2d/0x60 cifs_readahead+0x393/0xfe0 read_pages+0x12f/0x470 page_cache_ra_unbounded+0x1b1/0x240 filemap_get_pages+0x1c8/0x9a0 filemap_read+0x1c0/0x540 cifs_strict_readv+0x21b/0x240 vfs_read+0x395/0x4b0 ksys_read+0xb8/0x150 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc Freed by task 79: kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2e/0x50 __kasan_slab_free+0x10e/0x1a0 __kmem_cache_free+0x7a/0x1a0 cifs_readdata_release+0x49/0x60 process_one_work+0x46c/0x760 worker_thread+0x2a4/0x6f0 kthread+0x16b/0x1a0 ret_from_fork+0x2c/0x50 Last potentially related work creation: kasan_save_stack+0x22/0x50 __kasan_record_aux_stack+0x95/0xb0 insert_work+0x2b/0x130 __queue_work+0x1fe/0x660 queue_work_on+0x4b/0x60 smb2_readv_callback+0x396/0x800 cifs_abort_connection+0x474/0x6a0 cifs_reconnect+0x5cb/0xa50 cifs_readv_from_socket.cold+0x22/0x6c cifs_read_page_from_socket+0xc1/0x100 readpages_fill_pages.cold+0x2f/0x46 cifs_readv_receive+0x46d/0xa40 cifs_demultiplex_thread+0x121c/0x1490 kthread+0x16b/0x1a0 ret_from_fork+0x2c/0x50 The following function calls will cause UAF of the rdata pointer. readpages_fill_pages cifs_read_page_from_socket cifs_readv_from_socket cifs_reconnect __cifs_reconnect cifs_abort_connection mid->callback() --> smb2_readv_callback queue_work(&rdata->work) # if the worker completes first, # the rdata is freed cifs_readv_complete kref_put cifs_readdata_release kfree(rdata) return rdata->... # UAF in readpages_fill_pages() Similarly, this problem also occurs in the uncache_fill_pages(). Fix this by adjusts the order of condition judgment in the return statement.
References
Impacted products
Vendor Product Version
Linux Linux Version: b3160aebb49b5e07f6bc3b8c5bed6013ca9e422e
Version: b3160aebb49b5e07f6bc3b8c5bed6013ca9e422e
Version: b3160aebb49b5e07f6bc3b8c5bed6013ca9e422e
Version: b3160aebb49b5e07f6bc3b8c5bed6013ca9e422e
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\"b3160aebb49b5e07f6bc3b8c5bed6013ca9e422e\", \"lessThan\": \"3684a2f6affa1ca52a5d4a12f04d0652efdee65e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b3160aebb49b5e07f6bc3b8c5bed6013ca9e422e\", \"lessThan\": \"aa5465aeca3c66fecdf7efcf554aed79b4c4b211\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/cifs/file.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.17\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.17\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.168\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.94\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.2\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/cifs/file.c\"], \"defaultStatus\": \"affected\"}], \"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\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncifs: Fix use-after-free in rdata-\u003eread_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   \u003cTASK\u003e\\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   \u003c/TASK\u003e\\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-\u003ecallback() --\u003e smb2_readv_callback\\n       queue_work(\u0026rdata-\u003ework)  # 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-\u003e...               # 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.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.168\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.94\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.12\", \"versionStartIncluding\": \"3.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2\", \"versionStartIncluding\": \"3.17\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-05T09:11:10.506Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52741\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T09:11:10.506Z\", \"dateReserved\": \"2024-05-21T15:19:24.233Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T15:23:03.867Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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