CVE-2025-38647

Medium

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: sar: drop lockdep assertion in rtw89_set_sar_from_acpi The following assertion is triggered on the rtw89 driver startup. It looks meaningless to hold wiphy lock on the early init stage so drop the assertion. WARNING: CPU: 7 PID: 629 at drivers/net/wireless/realtek/rtw89/sar.c:502 rtw89_set_sar_from_acpi+0x365/0x4d0 [rtw89_core] CPU: 7 UID: 0 PID: 629 Comm: (udev-worker) Not tainted 6.15.0+ #29 PREEMPT(lazy) Hardware name: LENOVO 21D0/LNVNB161216, BIOS J6CN50WW 09/27/2024 RIP: 0010:rtw89_set_sar_from_acpi+0x365/0x4d0 [rtw89_core] Call Trace: <TASK> rtw89_sar_init+0x68/0x2c0 [rtw89_core] rtw89_core_init+0x188e/0x1e50 [rtw89_core] rtw89_pci_probe+0x530/0xb50 [rtw89_pci] local_pci_probe+0xd9/0x190 pci_call_probe+0x183/0x540 pci_device_probe+0x171/0x2c0 really_probe+0x1e1/0x890 __driver_probe_device+0x18c/0x390 driver_probe_device+0x4a/0x120 __driver_attach+0x1a0/0x530 bus_for_each_dev+0x10b/0x190 bus_add_driver+0x2eb/0x540 driver_register+0x1a3/0x3a0 do_one_initcall+0xd5/0x450 do_init_module+0x2cc/0x8f0 init_module_from_file+0xe1/0x150 idempotent_init_module+0x226/0x760 __x64_sys_finit_module+0xcd/0x150 do_syscall_64+0x94/0x380 entry_SYSCALL_64_after_hwframe+0x76/0x7e Found by Linux Verification Center (linuxtesting.org).

Package Linux Kernel
Published 2025-08-22
Last modified 2025-12-15
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

5.5

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 6.16 and later are affected. Fixed in 6.16.1, 6.17 and their respective stable series.

Affected from
≥ 6.16
Fixed in
✓ 6.16.1 6.16.x ✓ 6.17

References

The following references provide additional information about CVE-2025-38647 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2025-38647?

    CVE-2025-38647 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.16 onward and has been patched in 6.16.1 and 6.17. CVE-2025-38647 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2025-38647?

    CVE-2025-38647 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2025-38647?

    Yes — CVE-2025-38647 has been patched. Fixed versions include 6.16.1 and 6.17. If you are running Linux kernel 6.16 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2025-38647 actively exploited?

    No — CVE-2025-38647 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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