CVE-2025-38174
What it is
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.
At a glance
- Exploitability
- Can be exploited from the same network segment without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 8.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Record status
- Modified
Affected
- Linux Kernel < 5.4.295
- Linux Kernel < 5.10.239
- Linux Kernel < 5.15.186
- Linux Kernel < 6.1.142
- Linux Kernel < 6.6.94
- Linux Kernel < 6.12.33
- Linux Kernel < 6.14.11
- Linux Kernel < 6.15.2
Attack profile CVSS 3.1 · 8.8
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2025-38174.md and follow it. Check whether this project is affected by CVE-2025-38174. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/0771bcbe2f6e5d5f263cf466efe571d2754a46da
- https://git.kernel.org/stable/c/0a3011d47dbc92a33621861c423cb64833d7fe57
- https://git.kernel.org/stable/c/0f73628e9da1ee39daf5f188190cdbaee5e0c98c
- https://git.kernel.org/stable/c/2f62eda4d974c26bc595425eafd429067541f2c9
- https://git.kernel.org/stable/c/5a057f261539720165d03d85024da2b52e67f63d
- https://git.kernel.org/stable/c/85286e634ebbaf9c0fb1cdf580add2f33fc7628c
- https://git.kernel.org/stable/c/cdb4feab2f39e75a66239e3a112beced279612a8
- https://git.kernel.org/stable/c/e49e994cd83705f7ca30eda1e304abddfd96a37a
- https://git.kernel.org/stable/c/eb2d5e794fb966b3ef8bde99eb8561446a53509f
References
- https://git.kernel.org/stable/c/0771bcbe2f6e5d5f263cf466efe571d2754a46da
- https://git.kernel.org/stable/c/0a3011d47dbc92a33621861c423cb64833d7fe57
- https://git.kernel.org/stable/c/0f73628e9da1ee39daf5f188190cdbaee5e0c98c
- https://git.kernel.org/stable/c/2f62eda4d974c26bc595425eafd429067541f2c9
- https://git.kernel.org/stable/c/5a057f261539720165d03d85024da2b52e67f63d
- https://git.kernel.org/stable/c/85286e634ebbaf9c0fb1cdf580add2f33fc7628c
- https://git.kernel.org/stable/c/cdb4feab2f39e75a66239e3a112beced279612a8
- https://git.kernel.org/stable/c/e49e994cd83705f7ca30eda1e304abddfd96a37a
- https://git.kernel.org/stable/c/eb2d5e794fb966b3ef8bde99eb8561446a53509f
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html