Vulnerability-Lookup

GHSA-V988-556M-VGQV

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-17 06:33

Details

In the Linux kernel, the following vulnerability has been resolved:

mtd: rawnand: fix condition in 'nand_select_target()'

'cs' here must be in range [0:nanddev_ntargets[.

Severity

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-72165"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:21:34Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: rawnand: fix condition in \u0027nand_select_target()\u0027\n\n\u0027cs\u0027 here must be in range [0:nanddev_ntargets[.",
  "id": "GHSA-v988-556m-vgqv",
  "modified": "2026-08-17T06:33:14Z",
  "published": "2026-08-15T06:32:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72165"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3da4eb15c7b421c2d97c402bb7bd607c44822995"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/483a8a8581ee1274ec70e2561492096d4a7305e6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4bbfcf9c7e46cae58257150bf834853559382e28"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8507c2cc9e4fa402401819f44d1e8a5ef4d11d8b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8f575fc17360827ca1d1940a84f3c7ee40407a10"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c2a131fb6882c98aada739479cc96df8748d0c24"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e6df4fea1dc86c058e1918136c9b9d8e80c4be1b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fbc7c8a1167b2eb56b2fd8598c29a3d5e9f8676e"
    }
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-72165 (GCVE-0-2026-72165)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:53 – Updated: 2026-10-16 18:44

Title

mtd: rawnand: fix condition in 'nand_select_target()'

Summary

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: fix condition in 'nand_select_target()' 'cs' here must be in range [0:nanddev_ntargets[.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 18:43 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6992 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/483a8a8581ee1274e…
https://git.kernel.org/stable/c/c2a131fb6882c98aa…
https://git.kernel.org/stable/c/e6df4fea1dc86c058…
https://git.kernel.org/stable/c/3da4eb15c7b421c2d…
https://git.kernel.org/stable/c/fbc7c8a1167b2eb56…
https://git.kernel.org/stable/c/4bbfcf9c7e46cae58…
https://git.kernel.org/stable/c/8f575fc17360827ca…
https://git.kernel.org/stable/c/8507c2cc9e4fa4024…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 32813e288414fecce18f37f8f0d0414a64b45c56 , < 483a8a8581ee1274ec70e2561492096d4a7305e6 (git) Affected: 32813e288414fecce18f37f8f0d0414a64b45c56 , < c2a131fb6882c98aada739479cc96df8748d0c24 (git) Affected: 32813e288414fecce18f37f8f0d0414a64b45c56 , < e6df4fea1dc86c058e1918136c9b9d8e80c4be1b (git) Affected: 32813e288414fecce18f37f8f0d0414a64b45c56 , < 3da4eb15c7b421c2d97c402bb7bd607c44822995 (git) Affected: 32813e288414fecce18f37f8f0d0414a64b45c56 , < fbc7c8a1167b2eb56b2fd8598c29a3d5e9f8676e (git) Affected: 32813e288414fecce18f37f8f0d0414a64b45c56 , < 4bbfcf9c7e46cae58257150bf834853559382e28 (git) Affected: 32813e288414fecce18f37f8f0d0414a64b45c56 , < 8f575fc17360827ca1d1940a84f3c7ee40407a10 (git) Affected: 32813e288414fecce18f37f8f0d0414a64b45c56 , < 8507c2cc9e4fa402401819f44d1e8a5ef4d11d8b (git)
Linux	Linux	Affected: 5.2 Unaffected: 0 , < 5.2 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-72165",
                "options": [
                  {
                    "Exploitation": "none"
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                  },
                  {
                    "Technical Impact": "total"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-16T18:43:12.886709Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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              "version": "32813e288414fecce18f37f8f0d0414a64b45c56",
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            {
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          "versions": [
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              "version": "5.2"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
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              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
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              "lessThanOrEqual": "7.1.*",
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              "versionType": "semver"
            },
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              "lessThanOrEqual": "*",
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              "value": "AV:L - The flaw is in the raw NAND MTD stack reached via local /dev/mtdX character-device ioctls (MEMREAD, MEMWRITE, MEMERASE, MEMSETBADBLOCK) and mtdblock I/O, not via network protocols or physical hotplug alone.\nAC:L - An attacker with MTD device access can repeatedly issue read, write, or erase operations on multi-die NAND hardware; when a caller supplies cs equal to nanddev_ntargets(), the defective check passes deterministically and invokes the controller select_chip path.\nPR:L - Exploitation requires local write access to the MTD character device (FMODE_WRITE on /dev/mtdX) but no capability() gate beyond device permissions; per kernel CNA guidance, PR:L is chosen when uncertain between device-permission low and root-only high privilege.\nUI:N - No separate victim interaction is required; once the attacker has access to the MTD device node they can trigger the vulnerable nand_select_target() path through their own ioctl or read/write requests.\nS:U - Impact remains within the kernel and on-board NAND controller security authority on the host; it does not cross VM, container, IOMMU, or other security-boundary scopes into a separate authority.\nC:H - When cs equals nanddev_ntargets() the invalid index reaches controller select_chip handlers (denali, mtk, rockchip, renesas) that index sels[cs] without bounds checking, enabling out-of-bounds kernel memory reads.\nI:H - Out-of-bounds sels[cs] values are written into NAND controller CE-select and timing registers, plausibly corrupting flash contents or protection state; under the required uncertainty rule this memory-safety defect is scored as high integrity impact.\nA:H - On legacy/default select_chip paths an out-of-range cs hits BUG(), and controller misconfiguration from invalid CE selection can oops or hang the kernel, satisfying high availability impact for kernel crash classes."
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}

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.

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