thunderbolt: Do not double dequeue a configuration request
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Do not double dequeue a configuration request Some of our devices crash in tb_cfg_request_dequeue(): general protection fault, probably for non-canonical address 0xdead000000000122 CPU: 6 PID: 91007 Comm: kworker/6:2 Tainted: G U W 6.6.65 RIP: 0010:tb_cfg_request_dequeue+0x2d/0xa0 Call Trace: <TASK> ? tb_cfg_request_dequeue+0x2d/0xa0 tb_cfg_request_work+0x33/0x80 worker_thread+0x386/0x8f0 kthread+0xed/0x110 ret_from_fork+0x38/0x50 ret_from_fork_asm+0x1b/0x30 The circumstances are unclear, however, the theory is that tb_cfg_request_work() can be scheduled twice for a request: first time via frame.callback from ring_work() and second time from tb_cfg_request(). Both times kworkers will execute tb_cfg_request_dequeue(), which results in double list_del() from the ctl->request_queue (the list poison deference hints at it: 0xdead000000000122). Do not dequeue requests that don't have TB_CFG_REQUEST_ACTIVE bit set.
Why it matters now
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 | 3.17 and later | 5.4.295, 5.10.239, 5.15.186, 6.1.142, 6.6.94, 6.12.33, 6.14.11, 6.15.2, 6.16 | Patch available | CNA |
- Linux VendorLinux Affected 3.17 and later Fixed in 5.4.295, 5.10.239, 5.15.186, 6.1.142, 6.6.94, 6.12.33, 6.14.11, 6.15.2, 6.16 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 3.17 to before 5.4.295; 5.5 to before 5.10.239; 5.11 to before 5.15.186; 5.16 to before 6.1.142; 6.2 to before 6.6.94; 6.7 to before 6.12.33; 6.13 to before 6.14.11; 6.15 to before 6.15.2 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable | Debian |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 3.17 to before 5.4.295; 5.5 to before 5.10.239; 5.11 to before 5.15.186; 5.16 to before 6.1.142; 6.2 to before 6.6.94; 6.7 to before 6.12.33; 6.13 to before 6.14.11; 6.15 to before 6.15.2 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.4.295, 5.10.239, 5.15.186, 6.1.142, 6.6.94, 6.12.33, 6.14.11, 6.15.2, 6.16
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2025-38174
- 2026-10-03 Alias added: GHSA-vpp5-35pq-5g47
- 2026-11-07 Affected versions changed · Red Hat
References
Patch 9
- https://git.kernel.org/stable/c/e49e994cd83705f7ca30eda1e304abddfd96a37a
- https://git.kernel.org/stable/c/0a3011d47dbc92a33621861c423cb64833d7fe57
- https://git.kernel.org/stable/c/2f62eda4d974c26bc595425eafd429067541f2c9
- https://git.kernel.org/stable/c/85286e634ebbaf9c0fb1cdf580add2f33fc7628c
- https://git.kernel.org/stable/c/5a057f261539720165d03d85024da2b52e67f63d
- https://git.kernel.org/stable/c/eb2d5e794fb966b3ef8bde99eb8561446a53509f
- https://git.kernel.org/stable/c/0771bcbe2f6e5d5f263cf466efe571d2754a46da
- https://git.kernel.org/stable/c/cdb4feab2f39e75a66239e3a112beced279612a8
- https://git.kernel.org/stable/c/0f73628e9da1ee39daf5f188190cdbaee5e0c98c
More Linux Kernel vulnerabilities
- 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
Sources
- CVE-2025-38174 · CVE Program
- CVE-2025-38174 · NVD
- FIRST EPSS
- GHSA-vpp5-35pq-5g47 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-38174 · Red Hat security data · CC BY 4.0
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