Vulnerability-Lookup

FKIE_CVE-2026-23055

Vulnerability from fkie_nvd - Published: 2026-02-04 17:16 - Updated: 2026-02-05 14:57

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: i2c: riic: Move suspend handling to NOIRQ phase Commit 53326135d0e0 ("i2c: riic: Add suspend/resume support") added suspend support for the Renesas I2C driver and following this change on RZ/G3E the following WARNING is seen on entering suspend ... [ 134.275704] Freezing remaining freezable tasks completed (elapsed 0.001 seconds) [ 134.285536] ------------[ cut here ]------------ [ 134.290298] i2c i2c-2: Transfer while suspended [ 134.295174] WARNING: drivers/i2c/i2c-core.h:56 at __i2c_smbus_xfer+0x1e4/0x214, CPU#0: systemd-sleep/388 [ 134.365507] Tainted: [W]=WARN [ 134.368485] Hardware name: Renesas SMARC EVK version 2 based on r9a09g047e57 (DT) [ 134.375961] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 134.382935] pc : __i2c_smbus_xfer+0x1e4/0x214 [ 134.387329] lr : __i2c_smbus_xfer+0x1e4/0x214 [ 134.391717] sp : ffff800083f23860 [ 134.395040] x29: ffff800083f23860 x28: 0000000000000000 x27: ffff800082ed5d60 [ 134.402226] x26: 0000001f4395fd74 x25: 0000000000000007 x24: 0000000000000001 [ 134.409408] x23: 0000000000000000 x22: 000000000000006f x21: ffff800083f23936 [ 134.416589] x20: ffff0000c090e140 x19: ffff0000c090e0d0 x18: 0000000000000006 [ 134.423771] x17: 6f63657320313030 x16: 2e30206465737061 x15: ffff800083f23280 [ 134.430953] x14: 0000000000000000 x13: ffff800082b16ce8 x12: 0000000000000f09 [ 134.438134] x11: 0000000000000503 x10: ffff800082b6ece8 x9 : ffff800082b16ce8 [ 134.445315] x8 : 00000000ffffefff x7 : ffff800082b6ece8 x6 : 80000000fffff000 [ 134.452495] x5 : 0000000000000504 x4 : 0000000000000000 x3 : 0000000000000000 [ 134.459672] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000c9ee9e80 [ 134.466851] Call trace: [ 134.469311] __i2c_smbus_xfer+0x1e4/0x214 (P) [ 134.473715] i2c_smbus_xfer+0xbc/0x120 [ 134.477507] i2c_smbus_read_byte_data+0x4c/0x84 [ 134.482077] isl1208_i2c_read_time+0x44/0x178 [rtc_isl1208] [ 134.487703] isl1208_rtc_read_time+0x14/0x20 [rtc_isl1208] [ 134.493226] __rtc_read_time+0x44/0x88 [ 134.497012] rtc_read_time+0x3c/0x68 [ 134.500622] rtc_suspend+0x9c/0x170 The warning is triggered because I2C transfers can still be attempted while the controller is already suspended, due to inappropriate ordering of the system sleep callbacks. If the controller is autosuspended, there is no way to wake it up once runtime PM disabled (in suspend_late()). During system resume, the I2C controller will be available only after runtime PM is re-enabled (in resume_early()). However, this may be too late for some devices. Wake up the controller in the suspend() callback while runtime PM is still enabled. The I2C controller will remain available until the suspend_noirq() callback (pm_runtime_force_suspend()) is called. During resume, the I2C controller can be restored by the resume_noirq() callback (pm_runtime_force_resume()). Finally, the resume() callback re-enables autosuspend. As a result, the I2C controller can remain available until the system enters suspend_noirq() and from resume_noirq().

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0b4c0fbbe00b7de76bdaea7fa771017d7a979b0d
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/469f8fe4c87e43520f279e45b927c35d6fe99194
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e383f0961422f983451ac4dd6aed1a3d3311f2be

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: riic: Move suspend handling to NOIRQ phase\n\nCommit 53326135d0e0 (\"i2c: riic: Add suspend/resume support\") added\nsuspend support for the Renesas I2C driver and following this change\non RZ/G3E the following WARNING is seen on entering suspend ...\n\n[  134.275704] Freezing remaining freezable tasks completed (elapsed 0.001 seconds)\n[  134.285536] ------------[ cut here ]------------\n[  134.290298] i2c i2c-2: Transfer while suspended\n[  134.295174] WARNING: drivers/i2c/i2c-core.h:56 at __i2c_smbus_xfer+0x1e4/0x214, CPU#0: systemd-sleep/388\n[  134.365507] Tainted: [W]=WARN\n[  134.368485] Hardware name: Renesas SMARC EVK version 2 based on r9a09g047e57 (DT)\n[  134.375961] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[  134.382935] pc : __i2c_smbus_xfer+0x1e4/0x214\n[  134.387329] lr : __i2c_smbus_xfer+0x1e4/0x214\n[  134.391717] sp : ffff800083f23860\n[  134.395040] x29: ffff800083f23860 x28: 0000000000000000 x27: ffff800082ed5d60\n[  134.402226] x26: 0000001f4395fd74 x25: 0000000000000007 x24: 0000000000000001\n[  134.409408] x23: 0000000000000000 x22: 000000000000006f x21: ffff800083f23936\n[  134.416589] x20: ffff0000c090e140 x19: ffff0000c090e0d0 x18: 0000000000000006\n[  134.423771] x17: 6f63657320313030 x16: 2e30206465737061 x15: ffff800083f23280\n[  134.430953] x14: 0000000000000000 x13: ffff800082b16ce8 x12: 0000000000000f09\n[  134.438134] x11: 0000000000000503 x10: ffff800082b6ece8 x9 : ffff800082b16ce8\n[  134.445315] x8 : 00000000ffffefff x7 : ffff800082b6ece8 x6 : 80000000fffff000\n[  134.452495] x5 : 0000000000000504 x4 : 0000000000000000 x3 : 0000000000000000\n[  134.459672] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000c9ee9e80\n[  134.466851] Call trace:\n[  134.469311]  __i2c_smbus_xfer+0x1e4/0x214 (P)\n[  134.473715]  i2c_smbus_xfer+0xbc/0x120\n[  134.477507]  i2c_smbus_read_byte_data+0x4c/0x84\n[  134.482077]  isl1208_i2c_read_time+0x44/0x178 [rtc_isl1208]\n[  134.487703]  isl1208_rtc_read_time+0x14/0x20 [rtc_isl1208]\n[  134.493226]  __rtc_read_time+0x44/0x88\n[  134.497012]  rtc_read_time+0x3c/0x68\n[  134.500622]  rtc_suspend+0x9c/0x170\n\nThe warning is triggered because I2C transfers can still be attempted\nwhile the controller is already suspended, due to inappropriate ordering\nof the system sleep callbacks.\n\nIf the controller is autosuspended, there is no way to wake it up once\nruntime PM disabled (in suspend_late()). During system resume, the I2C\ncontroller will be available only after runtime PM is re-enabled\n(in resume_early()). However, this may be too late for some devices.\n\nWake up the controller in the suspend() callback while runtime PM is\nstill enabled. The I2C controller will remain available until the\nsuspend_noirq() callback (pm_runtime_force_suspend()) is called. During\nresume, the I2C controller can be restored by the resume_noirq() callback\n(pm_runtime_force_resume()). Finally, the resume() callback re-enables\nautosuspend. As a result, the I2C controller can remain available until\nthe system enters suspend_noirq() and from resume_noirq()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ni2c: riic: Mover el manejo de suspensi\u00f3n a la fase NOIRQ\n\nEl commit 53326135d0e0 (\u0027i2c: riic: A\u00f1adir soporte de suspensi\u00f3n/reanudaci\u00f3n\u0027) a\u00f1adi\u00f3 soporte de suspensi\u00f3n para el controlador I2C de Renesas y, tras este cambio en RZ/G3E, se observa la siguiente ADVERTENCIA al entrar en suspensi\u00f3n...\n\n[  134.275704] Freezing remaining freezable tasks completed (elapsed 0.001 seconds)\n[  134.285536] ------------[ cut here ]------------\n[  134.290298] i2c i2c-2: Transfer while suspended\n[  134.295174] WARNING: drivers/i2c/i2c-core.h:56 at __i2c_smbus_xfer+0x1e4/0x214, CPU#0: systemd-sleep/388\n[  134.365507] Tainted: [W]=WARN\n[  134.368485] Hardware name: Renesas SMARC EVK version 2 based on r9a09g047e57 (DT)\n[  134.375961] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[  134.382935] pc : __i2c_smbus_xfer+0x1e4/0x214\n[  134.387329] lr : __i2c_smbus_xfer+0x1e4/0x214\n[  134.391717] sp : ffff800083f23860\n[  134.395040] x29: ffff800083f23860 x28: 0000000000000000 x27: ffff800082ed5d60\n[  134.402226] x26: 0000001f4395fd74 x25: 0000000000000007 x24: 0000000000000001\n[  134.409408] x23: 0000000000000000 x22: 000000000000006f x21: ffff800083f23936\n[  134.416589] x20: ffff0000c090e140 x19: ffff0000c090e0d0 x18: 0000000000000006\n[  134.423771] x17: 6f63657320313030 x16: 2e30206465737061 x15: ffff800083f23280\n[  134.430953] x14: 0000000000000000 x13: ffff800082b16ce8 x12: 0000000000000f09\n[  134.438134] x11: 0000000000000503 x10: ffff800082b6ece8 x9 : ffff800082b16ce8\n[  134.445315] x8 : 00000000ffffefff x7 : ffff800082b6ece8 x6 : 80000000fffff000\n[  134.452495] x5 : 0000000000000504 x4 : 0000000000000000 x3 : 0000000000000000\n[  134.459672] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000c9ee9e80\n[  134.466851] Call trace:\n[  134.469311]  __i2c_smbus_xfer+0x1e4/0x214 (P)\n[  134.473715]  i2c_smbus_xfer+0xbc/0x120\n[  134.477507]  i2c_smbus_read_byte_data+0x4c/0x84\n[  134.482077]  isl1208_i2c_read_time+0x44/0x178 [rtc_isl1208]\n[  134.487703]  isl1208_rtc_read_time+0x14/0x20 [rtc_isl1208]\n[  134.493226]  __rtc_read_time+0x44/0x88\n[  134.497012]  rtc_read_time+0x3c/0x68\n[  134.500622]  rtc_suspend+0x9c/0x170\n\nLa advertencia se activa porque a\u00fan se pueden intentar transferencias I2C mientras el controlador ya est\u00e1 suspendido, debido a un ordenamiento inapropiado de las retrollamadas de suspensi\u00f3n del sistema.\n\nSi el controlador est\u00e1 autosuspendido, no hay forma de despertarlo una vez que el PM en tiempo de ejecuci\u00f3n est\u00e1 deshabilitado (en suspend_late()). Durante la reanudaci\u00f3n del sistema, el controlador I2C estar\u00e1 disponible solo despu\u00e9s de que el PM en tiempo de ejecuci\u00f3n se vuelva a habilitar (en resume_early()). Sin embargo, esto puede ser demasiado tarde para algunos dispositivos.\n\nDespertar el controlador en la retrollamada suspend() mientras el PM en tiempo de ejecuci\u00f3n a\u00fan est\u00e1 habilitado. El controlador I2C permanecer\u00e1 disponible hasta que se llame a la retrollamada suspend_noirq() (pm_runtime_force_suspend()). Durante la reanudaci\u00f3n, el controlador I2C puede ser restaurado por la retrollamada resume_noirq() (pm_runtime_force_resume()). Finalmente, la retrollamada resume() vuelve a habilitar la autosuspensi\u00f3n. Como resultado, el controlador I2C puede permanecer disponible hasta que el sistema entre en suspend_noirq() y desde resume_noirq()."
    }
  ],
  "id": "CVE-2026-23055",
  "lastModified": "2026-02-05T14:57:20.563",
  "metrics": {},
  "published": "2026-02-04T17:16:16.173",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0b4c0fbbe00b7de76bdaea7fa771017d7a979b0d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/469f8fe4c87e43520f279e45b927c35d6fe99194"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e383f0961422f983451ac4dd6aed1a3d3311f2be"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2026-23055 (GCVE-0-2026-23055)

Vulnerability from cvelistv5 – Published: 2026-02-04 16:04 – Updated: 2026-02-09 08:37

Title

i2c: riic: Move suspend handling to NOIRQ phase

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/469f8fe4c87e43520…
	https://git.kernel.org/stable/c/0b4c0fbbe00b7de76…
	https://git.kernel.org/stable/c/e383f0961422f9834…

Impacted products

Vendor

Product

Version

Linux

Affected: 53326135d0e041ebe7d08bf22f82529ae69a096e , < 469f8fe4c87e43520f279e45b927c35d6fe99194 (git)
Affected: 53326135d0e041ebe7d08bf22f82529ae69a096e , < 0b4c0fbbe00b7de76bdaea7fa771017d7a979b0d (git)
Affected: 53326135d0e041ebe7d08bf22f82529ae69a096e , < e383f0961422f983451ac4dd6aed1a3d3311f2be (git)

Linux

Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.12.67 , ≤ 6.12.* (semver)
Unaffected: 6.18.7 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/i2c/busses/i2c-riic.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "469f8fe4c87e43520f279e45b927c35d6fe99194",
              "status": "affected",
              "version": "53326135d0e041ebe7d08bf22f82529ae69a096e",
              "versionType": "git"
            },
            {
              "lessThan": "0b4c0fbbe00b7de76bdaea7fa771017d7a979b0d",
              "status": "affected",
              "version": "53326135d0e041ebe7d08bf22f82529ae69a096e",
              "versionType": "git"
            },
            {
              "lessThan": "e383f0961422f983451ac4dd6aed1a3d3311f2be",
              "status": "affected",
              "version": "53326135d0e041ebe7d08bf22f82529ae69a096e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/i2c/busses/i2c-riic.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.12"
            },
            {
              "lessThan": "6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.67",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.67",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.7",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: riic: Move suspend handling to NOIRQ phase\n\nCommit 53326135d0e0 (\"i2c: riic: Add suspend/resume support\") added\nsuspend support for the Renesas I2C driver and following this change\non RZ/G3E the following WARNING is seen on entering suspend ...\n\n[  134.275704] Freezing remaining freezable tasks completed (elapsed 0.001 seconds)\n[  134.285536] ------------[ cut here ]------------\n[  134.290298] i2c i2c-2: Transfer while suspended\n[  134.295174] WARNING: drivers/i2c/i2c-core.h:56 at __i2c_smbus_xfer+0x1e4/0x214, CPU#0: systemd-sleep/388\n[  134.365507] Tainted: [W]=WARN\n[  134.368485] Hardware name: Renesas SMARC EVK version 2 based on r9a09g047e57 (DT)\n[  134.375961] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[  134.382935] pc : __i2c_smbus_xfer+0x1e4/0x214\n[  134.387329] lr : __i2c_smbus_xfer+0x1e4/0x214\n[  134.391717] sp : ffff800083f23860\n[  134.395040] x29: ffff800083f23860 x28: 0000000000000000 x27: ffff800082ed5d60\n[  134.402226] x26: 0000001f4395fd74 x25: 0000000000000007 x24: 0000000000000001\n[  134.409408] x23: 0000000000000000 x22: 000000000000006f x21: ffff800083f23936\n[  134.416589] x20: ffff0000c090e140 x19: ffff0000c090e0d0 x18: 0000000000000006\n[  134.423771] x17: 6f63657320313030 x16: 2e30206465737061 x15: ffff800083f23280\n[  134.430953] x14: 0000000000000000 x13: ffff800082b16ce8 x12: 0000000000000f09\n[  134.438134] x11: 0000000000000503 x10: ffff800082b6ece8 x9 : ffff800082b16ce8\n[  134.445315] x8 : 00000000ffffefff x7 : ffff800082b6ece8 x6 : 80000000fffff000\n[  134.452495] x5 : 0000000000000504 x4 : 0000000000000000 x3 : 0000000000000000\n[  134.459672] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000c9ee9e80\n[  134.466851] Call trace:\n[  134.469311]  __i2c_smbus_xfer+0x1e4/0x214 (P)\n[  134.473715]  i2c_smbus_xfer+0xbc/0x120\n[  134.477507]  i2c_smbus_read_byte_data+0x4c/0x84\n[  134.482077]  isl1208_i2c_read_time+0x44/0x178 [rtc_isl1208]\n[  134.487703]  isl1208_rtc_read_time+0x14/0x20 [rtc_isl1208]\n[  134.493226]  __rtc_read_time+0x44/0x88\n[  134.497012]  rtc_read_time+0x3c/0x68\n[  134.500622]  rtc_suspend+0x9c/0x170\n\nThe warning is triggered because I2C transfers can still be attempted\nwhile the controller is already suspended, due to inappropriate ordering\nof the system sleep callbacks.\n\nIf the controller is autosuspended, there is no way to wake it up once\nruntime PM disabled (in suspend_late()). During system resume, the I2C\ncontroller will be available only after runtime PM is re-enabled\n(in resume_early()). However, this may be too late for some devices.\n\nWake up the controller in the suspend() callback while runtime PM is\nstill enabled. The I2C controller will remain available until the\nsuspend_noirq() callback (pm_runtime_force_suspend()) is called. During\nresume, the I2C controller can be restored by the resume_noirq() callback\n(pm_runtime_force_resume()). Finally, the resume() callback re-enables\nautosuspend. As a result, the I2C controller can remain available until\nthe system enters suspend_noirq() and from resume_noirq()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-09T08:37:53.284Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/469f8fe4c87e43520f279e45b927c35d6fe99194"
        },
        {
          "url": "https://git.kernel.org/stable/c/0b4c0fbbe00b7de76bdaea7fa771017d7a979b0d"
        },
        {
          "url": "https://git.kernel.org/stable/c/e383f0961422f983451ac4dd6aed1a3d3311f2be"
        }
      ],
      "title": "i2c: riic: Move suspend handling to NOIRQ phase",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23055",
    "datePublished": "2026-02-04T16:04:24.190Z",
    "dateReserved": "2026-01-13T15:37:45.951Z",
    "dateUpdated": "2026-02-09T08:37:53.284Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-23055

CVE-2026-23055 (GCVE-0-2026-23055)

Tags

Sightings

Nomenclature