TI-2022-25926 Aliases CVE-2022-50447 GHSA-x767-vgjw-4wwh

Bluetooth: hci_conn: Fix crash on hci_create_cis_sync

LOW 24CWE-476Published 2025-10-01 · Updated 2026-05-11

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Partial Red Hat: 9 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: Fix crash on hci_create_cis_sync When attempting to connect multiple ISO sockets without using DEFER_SETUP may result in the following crash: BUG: KASAN: null-ptr-deref in hci_create_cis_sync+0x18b/0x2b0 Read of size 2 at addr 0000000000000036 by task kworker/u3:1/50 CPU: 0 PID: 50 Comm: kworker/u3:1 Not tainted 6.0.0-rc7-02243-gb84a13ff4eda #4373 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-1.fc36 04/01/2014 Workqueue: hci0 hci_cmd_sync_work Call Trace: <TASK> dump_stack_lvl+0x19/0x27 kasan_report+0xbc/0xf0 ? hci_create_cis_sync+0x18b/0x2b0 hci_create_cis_sync+0x18b/0x2b0 ? get_link_mode+0xd0/0xd0 ? __ww_mutex_lock_slowpath+0x10/0x10 ? mutex_lock+0xe0/0xe0 ? get_link_mode+0xd0/0xd0 hci_cmd_sync_work+0x111/0x190 process_one_work+0x427/0x650 worker_thread+0x87/0x750 ? process_one_work+0x650/0x650 kthread+0x14e/0x180 ? kthread_exit+0x50/0x50 ret_from_fork+0x22/0x30 </TASK>

Why it matters now

EPSS 0.00164 5th percentileScored 2026-11-07

Fix Partial Linux (Linux): 6.0.16, 6.1.2, 6.2Red Hat: 3 advisoriesRed Hat: 9 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Linux	Linux	6.0 and later	6.0.16, 6.1.2, 6.2	Patch available	CNA

Linux VendorLinux Affected 6.0 and later Fixed in 6.0.16, 6.1.2, 6.2 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel::::::::	6.0 to before 6.0.16; 6.1 to before 6.1.2	Vulnerable	Linux

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 6.0 to before 6.0.16; 6.1 to before 6.1.2 Vulnerable ·Linux

Remediation

Fix · CNA Linux (Linux) Fixed in 6.0.16, 6.1.2, 6.2

Red Hat 3 advisories

RHSA-2026:0535 Released 2026-01-14 · Red Hat rating Important
kernel security update
- Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.152.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.152.1.el9_2, kernel-64k-devel-5.14.0-284.152.1.el9_2 +10
- Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.152.1.el9_2, kernel-5.14.0-284.152.1.el9_2, kernel-64k-5.14.0-284.152.1.el9_2 +29
RHSA-2026:0534 Released 2026-01-14 · Red Hat rating Important
kernel-rt security update
- Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.152.1.rt14.437.el9_2, kernel-rt-core-5.14.0-284.152.1.rt14.437.el9_2, kernel-rt-debug-5.14.0-284.152.1.rt14.437.el9_2 +9
- Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.152.1.rt14.437.el9_2, kernel-rt-core-5.14.0-284.152.1.rt14.437.el9_2, kernel-rt-debug-5.14.0-284.152.1.rt14.437.el9_2 +11
RHSA-2024:2394 Released 2024-04-30 · Red Hat rating Important
kernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-427.13.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.13.1.el9_4, kernel-64k-devel-5.14.0-427.13.1.el9_4 +11
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.3.0-427.13.1.el9_4, kernel-5.14.0-427.13.1.el9_4, kernel-64k-5.14.0-427.13.1.el9_4 +29
- Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-427.13.1.el9_4, libperf-5.14.0-427.13.1.el9_4
- Red Hat Enterprise Linux NFV (v. 9) kernel-rt-5.14.0-427.13.1.el9_4, kernel-rt-core-5.14.0-427.13.1.el9_4, kernel-rt-debug-5.14.0-427.13.1.el9_4 +11
- Red Hat Enterprise Linux RT (v. 9) kernel-rt-5.14.0-427.13.1.el9_4, kernel-rt-core-5.14.0-427.13.1.el9_4, kernel-rt-debug-5.14.0-427.13.1.el9_4 +9

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 6	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 9	Affected	No fix yet
Red Hat Enterprise Linux AppStream (v. 9)	Fixed	RHSA-2024:2394
Red Hat Enterprise Linux AppStream E4S (v.9.2)	Fixed	RHSA-2026:0535
Red Hat Enterprise Linux BaseOS (v. 9)	Fixed	RHSA-2024:2394
Red Hat Enterprise Linux BaseOS E4S (v.9.2)	Fixed	RHSA-2026:0535
Red Hat Enterprise Linux CRB (v. 9)	Fixed	RHSA-2024:2394
Red Hat Enterprise Linux NFV (v. 9)	Fixed	RHSA-2024:2394
Red Hat Enterprise Linux RT (v. 9)	Fixed	RHSA-2024:2394
Red Hat Enterprise Linux Real Time E4S (v.9.2)	Fixed	RHSA-2026:0534
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)	Fixed	RHSA-2026:0534

Not affected: 5 products

Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux AppStream E4S (v.9.2)
Red Hat Enterprise Linux BaseOS E4S (v.9.2)

Timeline

2026-10-02 Threatist record created from CVE-2022-50447
2026-10-03 Alias added: GHSA-x767-vgjw-4wwh

References

Patch 3

TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3

See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences