What is CVE-2025-40208?

CVE-2025-40208 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 6.15 onward and patched in 6.17.4 and 6.18. CVE-2025-40208 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-40208?

CVE-2025-40208 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2025-40208?

Yes, CVE-2025-40208 has been patched. Fixed versions include 6.17.4 and 6.18. If you are running Linux kernel 6.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-40208 actively exploited?

CVE-2025-40208 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-40208

In the Linux kernel, the following vulnerability has been resolved: media: iris: fix module removal if firmware download failed Fix remove if firmware failed to load: qcom-iris aa00000.video-codec: Direct firmware load for qcom/vpu/vpu33_p4.mbn failed with error -2 qcom-iris aa00000.video-codec: firmware download failed qcom-iris aa00000.video-codec: core init failed then: $ echo aa00000.video-codec > /sys/bus/platform/drivers/qcom-iris/unbind Triggers: genpd genpd:1:aa00000.video-codec: Runtime PM usage count underflow! ------------[ cut here ]------------ video_cc_mvs0_clk already disabled WARNING: drivers/clk/clk.c:1206 at clk_core_disable+0xa4/0xac, CPU#1: sh/542 <snip> pc : clk_core_disable+0xa4/0xac lr : clk_core_disable+0xa4/0xac <snip> Call trace: clk_core_disable+0xa4/0xac (P) clk_disable+0x30/0x4c iris_disable_unprepare_clock+0x20/0x48 [qcom_iris] iris_vpu_power_off_hw+0x48/0x58 [qcom_iris] iris_vpu33_power_off_hardware+0x44/0x230 [qcom_iris] iris_vpu_power_off+0x34/0x84 [qcom_iris] iris_core_deinit+0x44/0xc8 [qcom_iris] iris_remove+0x20/0x48 [qcom_iris] platform_remove+0x20/0x30 device_remove+0x4c/0x80 <snip> ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ video_cc_mvs0_clk already unprepared WARNING: drivers/clk/clk.c:1065 at clk_core_unprepare+0xf0/0x110, CPU#2: sh/542 <snip> pc : clk_core_unprepare+0xf0/0x110 lr : clk_core_unprepare+0xf0/0x110 <snip> Call trace: clk_core_unprepare+0xf0/0x110 (P) clk_unprepare+0x2c/0x44 iris_disable_unprepare_clock+0x28/0x48 [qcom_iris] iris_vpu_power_off_hw+0x48/0x58 [qcom_iris] iris_vpu33_power_off_hardware+0x44/0x230 [qcom_iris] iris_vpu_power_off+0x34/0x84 [qcom_iris] iris_core_deinit+0x44/0xc8 [qcom_iris] iris_remove+0x20/0x48 [qcom_iris] platform_remove+0x20/0x30 device_remove+0x4c/0x80 <snip> ---[ end trace 0000000000000000 ]--- genpd genpd:0:aa00000.video-codec: Runtime PM usage count underflow! ------------[ cut here ]------------ gcc_video_axi0_clk already disabled WARNING: drivers/clk/clk.c:1206 at clk_core_disable+0xa4/0xac, CPU#4: sh/542 <snip> pc : clk_core_disable+0xa4/0xac lr : clk_core_disable+0xa4/0xac <snip> Call trace: clk_core_disable+0xa4/0xac (P) clk_disable+0x30/0x4c iris_disable_unprepare_clock+0x20/0x48 [qcom_iris] iris_vpu33_power_off_controller+0x17c/0x428 [qcom_iris] iris_vpu_power_off+0x48/0x84 [qcom_iris] iris_core_deinit+0x44/0xc8 [qcom_iris] iris_remove+0x20/0x48 [qcom_iris] platform_remove+0x20/0x30 device_remove+0x4c/0x80 <snip> ------------[ cut here ]------------ gcc_video_axi0_clk already unprepared WARNING: drivers/clk/clk.c:1065 at clk_core_unprepare+0xf0/0x110, CPU#4: sh/542 <snip> pc : clk_core_unprepare+0xf0/0x110 lr : clk_core_unprepare+0xf0/0x110 <snip> Call trace: clk_core_unprepare+0xf0/0x110 (P) clk_unprepare+0x2c/0x44 iris_disable_unprepare_clock+0x28/0x48 [qcom_iris] iris_vpu33_power_off_controller+0x17c/0x428 [qcom_iris] iris_vpu_power_off+0x48/0x84 [qcom_iris] iris_core_deinit+0x44/0xc8 [qcom_iris] iris_remove+0x20/0x48 [qcom_iris] platform_remove+0x20/0x30 device_remove+0x4c/0x80 <snip> ---[ end trace 0000000000000000 ]--- Skip deinit if initialization never succeeded.

Package Linux Kernel

Published 2025-11-12

Last modified 2026-04-15

Patch available

Yes

Affected versions

Linux kernel versions 6.15 and later are affected. Fixed in 6.17.4, 6.18 and their respective stable series.

Affected from

≥ 6.15

Fixed in

✓ 6.17.4 6.17.x ✓ 6.18

References

The following references provide additional information about CVE-2025-40208 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/7a0a77b936ff28f59c271172e81cefebf7b2b7a6
Patch
Kernel patch commit
https://git.kernel.org/stable/c/fde38008fc4f43db8c17869491870df24b501543
Patch

Frequently asked questions

What is CVE-2025-40208?

CVE-2025-40208 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.15 onward and has been patched in 6.17.4 and 6.18. CVE-2025-40208 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2025-40208?

Yes — CVE-2025-40208 has been patched. Fixed versions include 6.17.4 and 6.18. If you are running Linux kernel 6.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-40208 actively exploited?

No — CVE-2025-40208 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.