Vulnerability-Lookup

FKIE_CVE-2026-23434

Vulnerability from fkie_nvd - Published: 2026-04-03 16:16 - Updated: 2026-04-27 14:16

Severity ?

7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: serialize lock/unlock against other NAND operations nand_lock() and nand_unlock() call into chip->ops.lock_area/unlock_area without holding the NAND device lock. On controllers that implement SET_FEATURES via multiple low-level PIO commands, these can race with concurrent UBI/UBIFS background erase/write operations that hold the device lock, resulting in cmd_pending conflicts on the NAND controller. Add nand_get_device()/nand_release_device() around the lock/unlock operations to serialize them against all other NAND controller access.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/28ea836cc44cb8b89c1c174707ead0c1133c60e9	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5fd5c078af23cb353507aa522e09d557d7eaef04	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a80291e577b44593a724d6cd64c14337c78f194d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/bab2bc6e850a697a23b9e5f0e21bb8c187615e95	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ce5229e78078e437704157eb542f43a6f83b429b	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f25446e2c28939753d3b62d34dfda49952b2557d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f71ce0ae5aefe39dd5b2f996c0e08550d2153ad2	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fe4a73c3dd48308149d57a10c2761e1d36ced7ba	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	5.7
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0

JSON

To clipboard

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CVE-2026-23434 (GCVE-0-2026-23434)

Vulnerability from cvelistv5 – Published: 2026-04-03 15:15 – Updated: 2026-04-27 14:02

Title

mtd: rawnand: serialize lock/unlock against other NAND operations

Summary

Severity ?

7.1 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/28ea836cc44cb8b89…
	https://git.kernel.org/stable/c/fe4a73c3dd4830814…
	https://git.kernel.org/stable/c/ce5229e78078e4377…
	https://git.kernel.org/stable/c/a80291e577b44593a…
	https://git.kernel.org/stable/c/f71ce0ae5aefe39dd…
	https://git.kernel.org/stable/c/5fd5c078af23cb353…
	https://git.kernel.org/stable/c/f25446e2c28939753…
	https://git.kernel.org/stable/c/bab2bc6e850a697a2…

Impacted products

Vendor

Product

Version

Linux

Affected: 92270086b7e5ada7ab381c06cc3da2e95ed17088 , < 28ea836cc44cb8b89c1c174707ead0c1133c60e9 (git)
Affected: 92270086b7e5ada7ab381c06cc3da2e95ed17088 , < fe4a73c3dd48308149d57a10c2761e1d36ced7ba (git)
Affected: 92270086b7e5ada7ab381c06cc3da2e95ed17088 , < ce5229e78078e437704157eb542f43a6f83b429b (git)
Affected: 92270086b7e5ada7ab381c06cc3da2e95ed17088 , < a80291e577b44593a724d6cd64c14337c78f194d (git)
Affected: 92270086b7e5ada7ab381c06cc3da2e95ed17088 , < f71ce0ae5aefe39dd5b2f996c0e08550d2153ad2 (git)
Affected: 92270086b7e5ada7ab381c06cc3da2e95ed17088 , < 5fd5c078af23cb353507aa522e09d557d7eaef04 (git)
Affected: 92270086b7e5ada7ab381c06cc3da2e95ed17088 , < f25446e2c28939753d3b62d34dfda49952b2557d (git)
Affected: 92270086b7e5ada7ab381c06cc3da2e95ed17088 , < bab2bc6e850a697a23b9e5f0e21bb8c187615e95 (git)

Linux

Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 5.10.253 , ≤ 5.10.* (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.167 , ≤ 6.1.* (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.78 , ≤ 6.12.* (semver)
Unaffected: 6.18.20 , ≤ 6.18.* (semver)
Unaffected: 6.19.10 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/mtd/nand/raw/nand_base.c"
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        }
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      "providerMetadata": {
        "dateUpdated": "2026-04-27T14:02:23.065Z",
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        },
        {
          "url": "https://git.kernel.org/stable/c/a80291e577b44593a724d6cd64c14337c78f194d"
        },
        {
          "url": "https://git.kernel.org/stable/c/f71ce0ae5aefe39dd5b2f996c0e08550d2153ad2"
        },
        {
          "url": "https://git.kernel.org/stable/c/5fd5c078af23cb353507aa522e09d557d7eaef04"
        },
        {
          "url": "https://git.kernel.org/stable/c/f25446e2c28939753d3b62d34dfda49952b2557d"
        },
        {
          "url": "https://git.kernel.org/stable/c/bab2bc6e850a697a23b9e5f0e21bb8c187615e95"
        }
      ],
      "title": "mtd: rawnand: serialize lock/unlock against other NAND operations",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23434",
    "datePublished": "2026-04-03T15:15:19.450Z",
    "dateReserved": "2026-01-13T15:37:46.016Z",
    "dateUpdated": "2026-04-27T14:02:23.065Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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-2026-23434

CVE-2026-23434 (GCVE-0-2026-23434)

Tags

Sightings

Nomenclature