CVE-2024-50029 (GCVE-0-2024-50029)

Vulnerability from cvelistv5 – Published: 2024-10-21 19:39 – Updated: 2025-05-04 09:44
VLAI?
Title
Bluetooth: hci_conn: Fix UAF in hci_enhanced_setup_sync
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: Fix UAF in hci_enhanced_setup_sync This checks if the ACL connection remains valid as it could be destroyed while hci_enhanced_setup_sync is pending on cmd_sync leading to the following trace: BUG: KASAN: slab-use-after-free in hci_enhanced_setup_sync+0x91b/0xa60 Read of size 1 at addr ffff888002328ffd by task kworker/u5:2/37 CPU: 0 UID: 0 PID: 37 Comm: kworker/u5:2 Not tainted 6.11.0-rc6-01300-g810be445d8d6 #7099 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-2.fc40 04/01/2014 Workqueue: hci0 hci_cmd_sync_work Call Trace: <TASK> dump_stack_lvl+0x5d/0x80 ? hci_enhanced_setup_sync+0x91b/0xa60 print_report+0x152/0x4c0 ? hci_enhanced_setup_sync+0x91b/0xa60 ? __virt_addr_valid+0x1fa/0x420 ? hci_enhanced_setup_sync+0x91b/0xa60 kasan_report+0xda/0x1b0 ? hci_enhanced_setup_sync+0x91b/0xa60 hci_enhanced_setup_sync+0x91b/0xa60 ? __pfx_hci_enhanced_setup_sync+0x10/0x10 ? __pfx___mutex_lock+0x10/0x10 hci_cmd_sync_work+0x1c2/0x330 process_one_work+0x7d9/0x1360 ? __pfx_lock_acquire+0x10/0x10 ? __pfx_process_one_work+0x10/0x10 ? assign_work+0x167/0x240 worker_thread+0x5b7/0xf60 ? __kthread_parkme+0xac/0x1c0 ? __pfx_worker_thread+0x10/0x10 ? __pfx_worker_thread+0x10/0x10 kthread+0x293/0x360 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2f/0x70 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK> Allocated by task 34: kasan_save_stack+0x30/0x50 kasan_save_track+0x14/0x30 __kasan_kmalloc+0x8f/0xa0 __hci_conn_add+0x187/0x17d0 hci_connect_sco+0x2e1/0xb90 sco_sock_connect+0x2a2/0xb80 __sys_connect+0x227/0x2a0 __x64_sys_connect+0x6d/0xb0 do_syscall_64+0x71/0x140 entry_SYSCALL_64_after_hwframe+0x76/0x7e Freed by task 37: kasan_save_stack+0x30/0x50 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3b/0x60 __kasan_slab_free+0x101/0x160 kfree+0xd0/0x250 device_release+0x9a/0x210 kobject_put+0x151/0x280 hci_conn_del+0x448/0xbf0 hci_abort_conn_sync+0x46f/0x980 hci_cmd_sync_work+0x1c2/0x330 process_one_work+0x7d9/0x1360 worker_thread+0x5b7/0xf60 kthread+0x293/0x360 ret_from_fork+0x2f/0x70 ret_from_fork_asm+0x1a/0x30
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e07a06b4eb417f5271d33ce2240e93c62d98b7b4 , < 867639300759e3e1c5b1e1a5ff89231f263a32a7 (git)
Affected: e07a06b4eb417f5271d33ce2240e93c62d98b7b4 , < 98ccd44002d88cbf4edfc4480df532a3da5a013e (git)
Affected: e07a06b4eb417f5271d33ce2240e93c62d98b7b4 , < 18fd04ad856df07733f5bb07e7f7168e7443d393 (git)
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    Linux Linux Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 6.6.57 , ≤ 6.6.* (semver)
Unaffected: 6.11.4 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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                "id": "CVE-2024-50029",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_conn: Fix UAF in hci_enhanced_setup_sync\n\nThis checks if the ACL connection remains valid as it could be destroyed\nwhile hci_enhanced_setup_sync is pending on cmd_sync leading to the\nfollowing trace:\n\nBUG: KASAN: slab-use-after-free in hci_enhanced_setup_sync+0x91b/0xa60\nRead of size 1 at addr ffff888002328ffd by task kworker/u5:2/37\n\nCPU: 0 UID: 0 PID: 37 Comm: kworker/u5:2 Not tainted 6.11.0-rc6-01300-g810be445d8d6 #7099\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-2.fc40 04/01/2014\nWorkqueue: hci0 hci_cmd_sync_work\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x5d/0x80\n ? hci_enhanced_setup_sync+0x91b/0xa60\n print_report+0x152/0x4c0\n ? hci_enhanced_setup_sync+0x91b/0xa60\n ? __virt_addr_valid+0x1fa/0x420\n ? hci_enhanced_setup_sync+0x91b/0xa60\n kasan_report+0xda/0x1b0\n ? hci_enhanced_setup_sync+0x91b/0xa60\n hci_enhanced_setup_sync+0x91b/0xa60\n ? __pfx_hci_enhanced_setup_sync+0x10/0x10\n ? __pfx___mutex_lock+0x10/0x10\n hci_cmd_sync_work+0x1c2/0x330\n process_one_work+0x7d9/0x1360\n ? __pfx_lock_acquire+0x10/0x10\n ? __pfx_process_one_work+0x10/0x10\n ? assign_work+0x167/0x240\n worker_thread+0x5b7/0xf60\n ? __kthread_parkme+0xac/0x1c0\n ? __pfx_worker_thread+0x10/0x10\n ? __pfx_worker_thread+0x10/0x10\n kthread+0x293/0x360\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x2f/0x70\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30\n \u003c/TASK\u003e\n\nAllocated by task 34:\n kasan_save_stack+0x30/0x50\n kasan_save_track+0x14/0x30\n __kasan_kmalloc+0x8f/0xa0\n __hci_conn_add+0x187/0x17d0\n hci_connect_sco+0x2e1/0xb90\n sco_sock_connect+0x2a2/0xb80\n __sys_connect+0x227/0x2a0\n __x64_sys_connect+0x6d/0xb0\n do_syscall_64+0x71/0x140\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nFreed by task 37:\n kasan_save_stack+0x30/0x50\n kasan_save_track+0x14/0x30\n kasan_save_free_info+0x3b/0x60\n __kasan_slab_free+0x101/0x160\n kfree+0xd0/0x250\n device_release+0x9a/0x210\n kobject_put+0x151/0x280\n hci_conn_del+0x448/0xbf0\n hci_abort_conn_sync+0x46f/0x980\n hci_cmd_sync_work+0x1c2/0x330\n process_one_work+0x7d9/0x1360\n worker_thread+0x5b7/0xf60\n kthread+0x293/0x360\n ret_from_fork+0x2f/0x70\n ret_from_fork_asm+0x1a/0x30"
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    "datePublished": "2024-10-21T19:39:32.459Z",
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    "dateUpdated": "2025-05-04T09:44:11.355Z",
    "state": "PUBLISHED"
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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-50029\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-22T13:26:20.682749Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:26:23.888Z\"}}], \"cna\": {\"title\": \"Bluetooth: hci_conn: Fix UAF in hci_enhanced_setup_sync\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"e07a06b4eb41\", \"lessThan\": \"867639300759\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e07a06b4eb41\", \"lessThan\": \"98ccd44002d8\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e07a06b4eb41\", \"lessThan\": \"18fd04ad856d\", \"versionType\": \"git\"}], \"programFiles\": [\"net/bluetooth/hci_conn.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.1\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.1\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.6.57\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12-rc3\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/bluetooth/hci_conn.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/867639300759e3e1c5b1e1a5ff89231f263a32a7\"}, {\"url\": \"https://git.kernel.org/stable/c/98ccd44002d88cbf4edfc4480df532a3da5a013e\"}, {\"url\": \"https://git.kernel.org/stable/c/18fd04ad856df07733f5bb07e7f7168e7443d393\"}], \"x_generator\": {\"engine\": \"bippy-9e1c9544281a\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: hci_conn: Fix UAF in hci_enhanced_setup_sync\\n\\nThis checks if the ACL connection remains valid as it could be destroyed\\nwhile hci_enhanced_setup_sync is pending on cmd_sync leading to the\\nfollowing trace:\\n\\nBUG: KASAN: slab-use-after-free in hci_enhanced_setup_sync+0x91b/0xa60\\nRead of size 1 at addr ffff888002328ffd by task kworker/u5:2/37\\n\\nCPU: 0 UID: 0 PID: 37 Comm: kworker/u5:2 Not tainted 6.11.0-rc6-01300-g810be445d8d6 #7099\\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-2.fc40 04/01/2014\\nWorkqueue: hci0 hci_cmd_sync_work\\nCall Trace:\\n \u003cTASK\u003e\\n dump_stack_lvl+0x5d/0x80\\n ? hci_enhanced_setup_sync+0x91b/0xa60\\n print_report+0x152/0x4c0\\n ? hci_enhanced_setup_sync+0x91b/0xa60\\n ? __virt_addr_valid+0x1fa/0x420\\n ? hci_enhanced_setup_sync+0x91b/0xa60\\n kasan_report+0xda/0x1b0\\n ? hci_enhanced_setup_sync+0x91b/0xa60\\n hci_enhanced_setup_sync+0x91b/0xa60\\n ? __pfx_hci_enhanced_setup_sync+0x10/0x10\\n ? __pfx___mutex_lock+0x10/0x10\\n hci_cmd_sync_work+0x1c2/0x330\\n process_one_work+0x7d9/0x1360\\n ? __pfx_lock_acquire+0x10/0x10\\n ? __pfx_process_one_work+0x10/0x10\\n ? assign_work+0x167/0x240\\n worker_thread+0x5b7/0xf60\\n ? __kthread_parkme+0xac/0x1c0\\n ? __pfx_worker_thread+0x10/0x10\\n ? __pfx_worker_thread+0x10/0x10\\n kthread+0x293/0x360\\n ? __pfx_kthread+0x10/0x10\\n ret_from_fork+0x2f/0x70\\n ? __pfx_kthread+0x10/0x10\\n ret_from_fork_asm+0x1a/0x30\\n \u003c/TASK\u003e\\n\\nAllocated by task 34:\\n kasan_save_stack+0x30/0x50\\n kasan_save_track+0x14/0x30\\n __kasan_kmalloc+0x8f/0xa0\\n __hci_conn_add+0x187/0x17d0\\n hci_connect_sco+0x2e1/0xb90\\n sco_sock_connect+0x2a2/0xb80\\n __sys_connect+0x227/0x2a0\\n __x64_sys_connect+0x6d/0xb0\\n do_syscall_64+0x71/0x140\\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\\n\\nFreed by task 37:\\n kasan_save_stack+0x30/0x50\\n kasan_save_track+0x14/0x30\\n kasan_save_free_info+0x3b/0x60\\n __kasan_slab_free+0x101/0x160\\n kfree+0xd0/0x250\\n device_release+0x9a/0x210\\n kobject_put+0x151/0x280\\n hci_conn_del+0x448/0xbf0\\n hci_abort_conn_sync+0x46f/0x980\\n hci_cmd_sync_work+0x1c2/0x330\\n process_one_work+0x7d9/0x1360\\n worker_thread+0x5b7/0xf60\\n kthread+0x293/0x360\\n ret_from_fork+0x2f/0x70\\n ret_from_fork_asm+0x1a/0x30\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-05T09:53:47.468Z\"}}}",
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      "dataType": "CVE_RECORD",
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}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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