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CVE-2025-68175

Estado: AplazadaAlta (7.8)—

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

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While this stream is running, querying the caps of the same device provokes the error state:

This results in the following trace:

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().

Detalles técnicos trazas, registros y código del informe original
	v4l2-ctl -l -d /dev/videoX

[  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 ]---

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Acceso local (AV:L) sin interacción de usuario (UI:N) permite a usuario autenticado (PR:L) causar denegación de servicio mediante limpieza no autorizada de streaming de video en kernel Linux imx8-isi.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-68175",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378",
              "lessThan": "a2008925ed7361d69f92f63f0a779c300432610a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378",
              "lessThan": "029914306b93b37c6e7060793d2b6f76b935cfa6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378",
              "lessThan": "47773031a148ad7973b809cc7723cba77eda2b42",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/media/platform/nxp/imx8-isi/imx8-isi-video.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.4",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.80",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.17.8",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/media/platform/nxp/imx8-isi/imx8-isi-video.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-16T14:15:49.433",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/029914306b93b37c6e7060793d2b6f76b935cfa6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/47773031a148ad7973b809cc7723cba77eda2b42",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a2008925ed7361d69f92f63f0a779c300432610a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: nxp: imx8-isi: Fix streaming cleanup on release\n\nThe current implementation unconditionally calls\nmxc_isi_video_cleanup_streaming() in mxc_isi_video_release(). This can\nlead to situations where any release call (like from a simple\n\"v4l2-ctl -l\") may release a currently streaming queue when called on\nsuch a device.\n\nThis is reproducible on an i.MX8MP board by streaming from an ISI\ncapture device using gstreamer:\n\n\tgst-launch-1.0 -v v4l2src device=/dev/videoX ! \\\n\t    video/x-raw,format=GRAY8,width=1280,height=800,framerate=1/120 ! \\\n\t    fakesink\n\nWhile this stream is running, querying the caps of the same device\nprovokes the error state:\n\n\tv4l2-ctl -l -d /dev/videoX\n\nThis results in the following trace:\n\n[  155.452152] ------------[ cut here ]------------\n[  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]\n[  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\n[  157.053499] CPU: 0 UID: 0 PID: 1708 Comm: python3 Not tainted 6.15.4-00114-g1f61ca5cad76 #1 PREEMPT\n[  157.064369] Hardware name: imx8mp_board_01 (DT)\n[  157.068205] pstate: 400000c5 (nZcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[  157.075169] pc : mxc_isi_pipe_irq_handler+0x19c/0x1b0 [imx8_isi]\n[  157.081195] lr : mxc_isi_pipe_irq_handler+0x38/0x1b0 [imx8_isi]\n[  157.087126] sp : ffff800080003ee0\n[  157.090438] x29: ffff800080003ee0 x28: ffff0000c3688000 x27: 0000000000000000\n[  157.097580] x26: 0000000000000000 x25: ffff0000c1e7ac00 x24: ffff800081b5ad50\n[  157.104723] x23: 00000000000000d1 x22: 0000000000000000 x21: ffff0000c25e4000\n[  157.111866] x20: 0000000060000200 x19: ffff80007a0608d0 x18: 0000000000000000\n[  157.119008] x17: ffff80006a4e3000 x16: ffff800080000000 x15: 0000000000000000\n[  157.126146] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000\n[  157.133287] x11: 0000000000000040 x10: ffff0000c01445f0 x9 : ffff80007a053a38\n[  157.140425] x8 : ffff0000c04004b8 x7 : 0000000000000000 x6 : 0000000000000000\n[  157.147567] x5 : ffff0000c0400490 x4 : ffff80006a4e3000 x3 : ffff0000c25e4000\n[  157.154706] x2 : 0000000000000000 x1 : ffff8000825c0014 x0 : 0000000060000200\n[  157.161850] Call trace:\n[  157.164296]  mxc_isi_pipe_irq_handler+0x19c/0x1b0 [imx8_isi] (P)\n[  157.170319]  __handle_irq_event_percpu+0x58/0x218\n[  157.175029]  handle_irq_event+0x54/0xb8\n[  157.178867]  handle_fasteoi_irq+0xac/0x248\n[  157.182968]  handle_irq_desc+0x48/0x68\n[  157.186723]  generic_handle_domain_irq+0x24/0x38\n[  157.191346]  gic_handle_irq+0x54/0x120\n[  157.195098]  call_on_irq_stack+0x24/0x30\n[  157.199027]  do_interrupt_handler+0x88/0x98\n[  157.203212]  el0_interrupt+0x44/0xc0\n[  157.206792]  __el0_irq_handler_common+0x18/0x28\n[  157.211328]  el0t_64_irq_handler+0x10/0x20\n[  157.215429]  el0t_64_irq+0x198/0x1a0\n[  157.219009] ---[ end trace 0000000000000000 ]---\n\nAddress this issue by moving the streaming preparation and cleanup to\nthe vb2 .prepare_streaming() and .unprepare_streaming() operations. This\nalso simplifies the driver by allowing direct usage of the\nvb2_ioctl_streamon() and vb2_ioctl_streamoff() helpers, and removal of\nthe manual cleanup from mxc_isi_video_release()."
    }
  ],
  "lastModified": "2026-07-30T06:24:32.193",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}