Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2022-50419
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-09-18 16:15:45 UTC
Updated2026-08-04 10:18:16 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times device_add shall not be called multiple times as stated in its documentation: 'Do not call this routine or device_register() more than once for any device structure' Syzkaller reports a bug as follows [1]: ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:33! invalid opcode: 0000 [#1] PREEMPT SMP KASAN [...] Call Trace: <TASK> __list_add include/linux/list.h:69 [inline] list_add_tail include/linux/list.h:102 [inline] kobj_kset_join lib/kobject.c:164 [inline] kobject_add_internal+0x18f/0x8f0 lib/kobject.c:214 kobject_add_varg lib/kobject.c:358 [inline] kobject_add+0x150/0x1c0 lib/kobject.c:410 device_add+0x368/0x1e90 drivers/base/core.c:3452 hci_conn_add_sysfs+0x9b/0x1b0 net/bluetooth/hci_sysfs.c:53 hci_le_cis_estabilished_evt+0x57c/0xae0 net/bluetooth/hci_event.c:6799 hci_le_meta_evt+0x2b8/0x510 net/bluetooth/hci_event.c:7110 hci_event_func net/bluetooth/hci_event.c:7440 [inline] hci_event_packet+0x63d/0xfd0 net/bluetooth/hci_event.c:7495 hci_rx_work+0xae7/0x1230 net/bluetooth/hci_core.c:4007 process_one_work+0x991/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 </TASK>

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-415 | CWE-415 CWE-415 Double Free

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1ADPDECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected b219e3ac66183fc9771b94af931fb5fd41d586ec 4bcefec3636208b4c97536b26014d5935d5c10a0 git Not specified
CNA Linux Linux affected b219e3ac66183fc9771b94af931fb5fd41d586ec 6144423712d570247b8ca26e50a277c30dd13702 git Not specified
CNA Linux Linux affected b219e3ac66183fc9771b94af931fb5fd41d586ec 671fee73e08ff415d36a7c16bdf238927df83884 git Not specified
CNA Linux Linux affected b219e3ac66183fc9771b94af931fb5fd41d586ec 6e85d2ad958c6f034b1b158d904019869dbb3c81 git Not specified
CNA Linux Linux affected b219e3ac66183fc9771b94af931fb5fd41d586ec 7b674dce4162bb46d396586e30e4653427023875 git Not specified
CNA Linux Linux affected b219e3ac66183fc9771b94af931fb5fd41d586ec 3423a50fa018e88aed4c900d59c3c8334d8ad583 git Not specified
CNA Linux Linux affected b219e3ac66183fc9771b94af931fb5fd41d586ec ef055094df4c10b73cfe67c8d43f9de1fb608a8b git Not specified
CNA Linux Linux affected b219e3ac66183fc9771b94af931fb5fd41d586ec 1b6c89571f453101251201f0fad1c26f7256e937 git Not specified
CNA Linux Linux affected b219e3ac66183fc9771b94af931fb5fd41d586ec 448a496f760664d3e2e79466aa1787e6abc922b5 git Not specified
CNA Linux Linux affected 2.6.19 Not specified
CNA Linux Linux unaffected 2.6.19 semver Not specified
CNA Linux Linux unaffected 4.9.331 4.9.* semver Not specified
CNA Linux Linux unaffected 4.14.296 4.14.* semver Not specified
CNA Linux Linux unaffected 4.19.262 4.19.* semver Not specified
CNA Linux Linux unaffected 5.4.220 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.150 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.75 5.15.* semver Not specified
CNA Linux Linux unaffected 5.19.17 5.19.* semver Not specified
CNA Linux Linux unaffected 6.0.3 6.0.* semver Not specified
CNA Linux Linux unaffected 6.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/1b6c89571f453101251201f0fad1c26f7256e937 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/671fee73e08ff415d36a7c16bdf238927df83884 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ef055094df4c10b73cfe67c8d43f9de1fb608a8b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/4bcefec3636208b4c97536b26014d5935d5c10a0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/3423a50fa018e88aed4c900d59c3c8334d8ad583 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/7b674dce4162bb46d396586e30e4653427023875 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/6e85d2ad958c6f034b1b158d904019869dbb3c81 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/6144423712d570247b8ca26e50a277c30dd13702 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/448a496f760664d3e2e79466aa1787e6abc922b5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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