ghsa-wpg8-rfjm-9g3w
Vulnerability from github
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:
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.
{
"affected": [],
"aliases": [
"CVE-2023-52741"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-21T16:15:14Z",
"severity": null
},
"details": "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.",
"id": "GHSA-wpg8-rfjm-9g3w",
"modified": "2024-05-21T18:31:19Z",
"published": "2024-05-21T18:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52741"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2b693fe3f760c87fd9768e759f6297f743a1b3b0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3684a2f6affa1ca52a5d4a12f04d0652efdee65e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/aa5465aeca3c66fecdf7efcf554aed79b4c4b211"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d1fba1e096ffc7ec11df863a97c50203c47315b9"
}
],
"schema_version": "1.4.0",
"severity": []
}
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Patched: This vulnerability was successfully patched by the user reporting the sighting.
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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.