# CVE-2025-68175: media: nxp: imx8-isi: Fix streaming cleanup on release

CVE-2025-68175 is fixed in linux on 1 platform, first by DEBIAN-CVE-2025-68175, released December 16, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-68175
- Priority: High
- CVSS: 7.8 (Moderate)
- EPSS: 0.0018
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 16, 2025
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-68175

## Description

In the Linux kernel, the following vulnerability has been resolved:  media: nxp: imx8-isi: Fix streaming cleanup on release  The current implementation unconditionally calls mxc_isi_video_cleanup_streaming() in mxc_isi_video_release(). This can lead to situations where any release call (like from a simple "v4l2-ctl -l") may release a currently streaming queue when called on such a device.  This is reproducible on an i.MX8MP board by streaming from an ISI capture device using gstreamer:  	gst-launch-1.0 -v v4l2src device=/dev/videoX ! \ 	    video/x-raw,format=GRAY8,width=1280,height=800,framerate=1/120 ! \ 	    fakesink  While this stream is running, querying the caps of the same device provokes the error state:  	v4l2-ctl -l -d /dev/videoX  This results in the following trace:  [  155.452152] ------------[ cut here ]------------ [  155.452163] WARNING: CPU: 0 PID: 1708 at drivers/media/platform/nxp/imx8-isi/imx8-isi-pipe.c:713 mxc_isi_pipe_irq_handler+0x19c/0x1b0 [imx8_isi] [  157.004248] Modules linked in: cfg80211 rpmsg_ctrl rpmsg_char rpmsg_tty virtio_rpmsg_bus rpmsg_ns rpmsg_core rfkill nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables mcp251x6 [  157.053499] CPU: 0 UID: 0 PID: 1708 Comm: python3 Not tainted 6.15.4-00114-g1f61ca5cad76 #1 PREEMPT [  157.064369] Hardware name: imx8mp_board_01 (DT) [  157.068205] pstate: 400000c5 (nZcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [  157.075169] pc : mxc_isi_pipe_irq_handler+0x19c/0x1b0 [imx8_isi] [  157.081195] lr : mxc_isi_pipe_irq_handler+0x38/0x1b0 [imx8_isi] [  157.087126] sp : ffff800080003ee0 [  157.090438] x29: ffff800080003ee0 x28: ffff0000c3688000 x27: 0000000000000000 [  157.097580] x26: 0000000000000000 x25: ffff0000c1e7ac00 x24: ffff800081b5ad50 [  157.104723] x23: 00000000000000d1 x22: 0000000000000000 x21: ffff0000c25e4000 [  157.111866] x20: 0000000060000200 x19: ffff80007a0608d0 x18: 0000000000000000 [  157.119008] x17: ffff80006a4e3000 x16: ffff800080000000 x15: 0000000000000000 [  157.126146] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 [  157.133287] x11: 0000000000000040 x10: ffff0000c01445f0 x9 : ffff80007a053a38 [  157.140425] x8 : ffff0000c04004b8 x7 : 0000000000000000 x6 : 0000000000000000 [  157.147567] x5 : ffff0000c0400490 x4 : ffff80006a4e3000 x3 : ffff0000c25e4000 [  157.154706] x2 : 0000000000000000 x1 : ffff8000825c0014 x0 : 0000000060000200 [  157.161850] Call trace: [  157.164296]  mxc_isi_pipe_irq_handler+0x19c/0x1b0 [imx8_isi] (P) [  157.170319]  __handle_irq_event_percpu+0x58/0x218 [  157.175029]  handle_irq_event+0x54/0xb8 [  157.178867]  handle_fasteoi_irq+0xac/0x248 [  157.182968]  handle_irq_desc+0x48/0x68 [  157.186723]  generic_handle_domain_irq+0x24/0x38 [  157.191346]  gic_handle_irq+0x54/0x120 [  157.195098]  call_on_irq_stack+0x24/0x30 [  157.199027]  do_interrupt_handler+0x88/0x98 [  157.203212]  el0_interrupt+0x44/0xc0 [  157.206792]  __el0_irq_handler_common+0x18/0x28 [  157.211328]  el0t_64_irq_handler+0x10/0x20 [  157.215429]  el0t_64_irq+0x198/0x1a0 [  157.219009] ---[ end trace 0000000000000000 ]---  Address this issue by moving the streaming preparation and cleanup to the vb2 .prepare_streaming() and .unprepare_streaming() operations. This also simplifies the driver by allowing direct usage of the vb2_ioctl_streamon() and vb2_ioctl_streamoff() helpers, and removal of the manual cleanup from mxc_isi_video_release().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.85-1 | [DEBIAN-CVE-2025-68175](https://patchblox.com/security/data/fix/linux/debian-cve-2025-68175.md) | Dec 16, 2025 |
| Linux | linux Debian 14 | 6.17.8-1 | [DEBIAN-CVE-2025-68175](https://patchblox.com/security/data/fix/linux/debian-cve-2025-68175.md) | Dec 16, 2025 |

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