Vulnerability-Lookup

CVE-2026-23207 (GCVE-0-2026-23207)

Vulnerability from cvelistv5 – Published: 2026-02-14 16:27 – Updated: 2026-02-14 16:27

Title

spi: tegra210-quad: Protect curr_xfer check in IRQ handler

Summary

In the Linux kernel, the following vulnerability has been resolved: spi: tegra210-quad: Protect curr_xfer check in IRQ handler Now that all other accesses to curr_xfer are done under the lock, protect the curr_xfer NULL check in tegra_qspi_isr_thread() with the spinlock. Without this protection, the following race can occur: CPU0 (ISR thread) CPU1 (timeout path) ---------------- ------------------- if (!tqspi->curr_xfer) // sees non-NULL spin_lock() tqspi->curr_xfer = NULL spin_unlock() handle_*_xfer() spin_lock() t = tqspi->curr_xfer // NULL! ... t->len ... // NULL dereference! With this patch, all curr_xfer accesses are now properly synchronized. Although all accesses to curr_xfer are done under the lock, in tegra_qspi_isr_thread() it checks for NULL, releases the lock and reacquires it later in handle_cpu_based_xfer()/handle_dma_based_xfer(). There is a potential for an update in between, which could cause a NULL pointer dereference. To handle this, add a NULL check inside the handlers after acquiring the lock. This ensures that if the timeout path has already cleared curr_xfer, the handler will safely return without dereferencing the NULL pointer.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/2ac3a105e51496147…
	https://git.kernel.org/stable/c/edf9088b6e1d6d889…

Impacted products

Vendor

Product

Version

Linux

Affected: 01bbf25c767219b14c3235bfa85906b8d2cb8fbc , < 2ac3a105e51496147c0e44e49466eecfcc532d57 (git)
Affected: b4e002d8a7cee3b1d70efad0e222567f92a73000 , < edf9088b6e1d6d88982db7eb5e736a0e4fbcc09e (git)
Affected: 88db8bb7ed1bb474618acdf05ebd4f0758d244e2 (git)
Affected: 83309dd551cfd60a5a1a98d9cab19f435b44d46d (git)
Affected: c934e40246da2c5726d14e94719c514e30840df8 (git)
Affected: 551060efb156c50fe33799038ba8145418cfdeef (git)
Affected: bb0c58be84f907285af45657c1d4847b960a12bf (git)

Linux

Affected: 6.18.2 , < 6.18.10 (semver)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi-tegra210-quad.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2ac3a105e51496147c0e44e49466eecfcc532d57",
              "status": "affected",
              "version": "01bbf25c767219b14c3235bfa85906b8d2cb8fbc",
              "versionType": "git"
            },
            {
              "lessThan": "edf9088b6e1d6d88982db7eb5e736a0e4fbcc09e",
              "status": "affected",
              "version": "b4e002d8a7cee3b1d70efad0e222567f92a73000",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "88db8bb7ed1bb474618acdf05ebd4f0758d244e2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "83309dd551cfd60a5a1a98d9cab19f435b44d46d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c934e40246da2c5726d14e94719c514e30840df8",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "551060efb156c50fe33799038ba8145418cfdeef",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bb0c58be84f907285af45657c1d4847b960a12bf",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi-tegra210-quad.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6.18.10",
              "status": "affected",
              "version": "6.18.2",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.10",
                  "versionStartIncluding": "6.18.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.15.198",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.1.160",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.6.120",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.12.63",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.17.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: tegra210-quad: Protect curr_xfer check in IRQ handler\n\nNow that all other accesses to curr_xfer are done under the lock,\nprotect the curr_xfer NULL check in tegra_qspi_isr_thread() with the\nspinlock. Without this protection, the following race can occur:\n\n  CPU0 (ISR thread)              CPU1 (timeout path)\n  ----------------               -------------------\n  if (!tqspi-\u003ecurr_xfer)\n    // sees non-NULL\n                                 spin_lock()\n                                 tqspi-\u003ecurr_xfer = NULL\n                                 spin_unlock()\n  handle_*_xfer()\n    spin_lock()\n    t = tqspi-\u003ecurr_xfer  // NULL!\n    ... t-\u003elen ...        // NULL dereference!\n\nWith this patch, all curr_xfer accesses are now properly synchronized.\n\nAlthough all accesses to curr_xfer are done under the lock, in\ntegra_qspi_isr_thread() it checks for NULL, releases the lock and\nreacquires it later in handle_cpu_based_xfer()/handle_dma_based_xfer().\nThere is a potential for an update in between, which could cause a NULL\npointer dereference.\n\nTo handle this, add a NULL check inside the handlers after acquiring\nthe lock. This ensures that if the timeout path has already cleared\ncurr_xfer, the handler will safely return without dereferencing the\nNULL pointer."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-14T16:27:29.762Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2ac3a105e51496147c0e44e49466eecfcc532d57"
        },
        {
          "url": "https://git.kernel.org/stable/c/edf9088b6e1d6d88982db7eb5e736a0e4fbcc09e"
        }
      ],
      "title": "spi: tegra210-quad: Protect curr_xfer check in IRQ handler",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23207",
    "datePublished": "2026-02-14T16:27:29.762Z",
    "dateReserved": "2026-01-13T15:37:45.986Z",
    "dateUpdated": "2026-02-14T16:27:29.762Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-23207\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-02-14T17:15:58.610\",\"lastModified\":\"2026-02-14T17:15:58.610\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nspi: tegra210-quad: Protect curr_xfer check in IRQ handler\\n\\nNow that all other accesses to curr_xfer are done under the lock,\\nprotect the curr_xfer NULL check in tegra_qspi_isr_thread() with the\\nspinlock. Without this protection, the following race can occur:\\n\\n  CPU0 (ISR thread)              CPU1 (timeout path)\\n  ----------------               -------------------\\n  if (!tqspi-\u003ecurr_xfer)\\n    // sees non-NULL\\n                                 spin_lock()\\n                                 tqspi-\u003ecurr_xfer = NULL\\n                                 spin_unlock()\\n  handle_*_xfer()\\n    spin_lock()\\n    t = tqspi-\u003ecurr_xfer  // NULL!\\n    ... t-\u003elen ...        // NULL dereference!\\n\\nWith this patch, all curr_xfer accesses are now properly synchronized.\\n\\nAlthough all accesses to curr_xfer are done under the lock, in\\ntegra_qspi_isr_thread() it checks for NULL, releases the lock and\\nreacquires it later in handle_cpu_based_xfer()/handle_dma_based_xfer().\\nThere is a potential for an update in between, which could cause a NULL\\npointer dereference.\\n\\nTo handle this, add a NULL check inside the handlers after acquiring\\nthe lock. This ensures that if the timeout path has already cleared\\ncurr_xfer, the handler will safely return without dereferencing the\\nNULL pointer.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2ac3a105e51496147c0e44e49466eecfcc532d57\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/edf9088b6e1d6d88982db7eb5e736a0e4fbcc09e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}

GHSA-5XF5-GQ7P-JFX7

Vulnerability from github – Published: 2026-02-14 18:30 – Updated: 2026-02-14 18:30

Details

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

spi: tegra210-quad: Protect curr_xfer check in IRQ handler

Now that all other accesses to curr_xfer are done under the lock, protect the curr_xfer NULL check in tegra_qspi_isr_thread() with the spinlock. Without this protection, the following race can occur:

CPU0 (ISR thread) CPU1 (timeout path) ---------------- ------------------- if (!tqspi->curr_xfer) // sees non-NULL spin_lock() tqspi->curr_xfer = NULL spin_unlock() handle_*_xfer() spin_lock() t = tqspi->curr_xfer // NULL! ... t->len ... // NULL dereference!

With this patch, all curr_xfer accesses are now properly synchronized.

Although all accesses to curr_xfer are done under the lock, in tegra_qspi_isr_thread() it checks for NULL, releases the lock and reacquires it later in handle_cpu_based_xfer()/handle_dma_based_xfer(). There is a potential for an update in between, which could cause a NULL pointer dereference.

To handle this, add a NULL check inside the handlers after acquiring the lock. This ensures that if the timeout path has already cleared curr_xfer, the handler will safely return without dereferencing the NULL pointer.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-23207"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-14T17:15:58Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: tegra210-quad: Protect curr_xfer check in IRQ handler\n\nNow that all other accesses to curr_xfer are done under the lock,\nprotect the curr_xfer NULL check in tegra_qspi_isr_thread() with the\nspinlock. Without this protection, the following race can occur:\n\n  CPU0 (ISR thread)              CPU1 (timeout path)\n  ----------------               -------------------\n  if (!tqspi-\u003ecurr_xfer)\n    // sees non-NULL\n                                 spin_lock()\n                                 tqspi-\u003ecurr_xfer = NULL\n                                 spin_unlock()\n  handle_*_xfer()\n    spin_lock()\n    t = tqspi-\u003ecurr_xfer  // NULL!\n    ... t-\u003elen ...        // NULL dereference!\n\nWith this patch, all curr_xfer accesses are now properly synchronized.\n\nAlthough all accesses to curr_xfer are done under the lock, in\ntegra_qspi_isr_thread() it checks for NULL, releases the lock and\nreacquires it later in handle_cpu_based_xfer()/handle_dma_based_xfer().\nThere is a potential for an update in between, which could cause a NULL\npointer dereference.\n\nTo handle this, add a NULL check inside the handlers after acquiring\nthe lock. This ensures that if the timeout path has already cleared\ncurr_xfer, the handler will safely return without dereferencing the\nNULL pointer.",
  "id": "GHSA-5xf5-gq7p-jfx7",
  "modified": "2026-02-14T18:30:16Z",
  "published": "2026-02-14T18:30:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23207"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ac3a105e51496147c0e44e49466eecfcc532d57"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/edf9088b6e1d6d88982db7eb5e736a0e4fbcc09e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

FKIE_CVE-2026-23207

Vulnerability from fkie_nvd - Published: 2026-02-14 17:15 - Updated: 2026-02-14 17:15

Severity ?

Summary

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2ac3a105e51496147c0e44e49466eecfcc532d57
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/edf9088b6e1d6d88982db7eb5e736a0e4fbcc09e

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: tegra210-quad: Protect curr_xfer check in IRQ handler\n\nNow that all other accesses to curr_xfer are done under the lock,\nprotect the curr_xfer NULL check in tegra_qspi_isr_thread() with the\nspinlock. Without this protection, the following race can occur:\n\n  CPU0 (ISR thread)              CPU1 (timeout path)\n  ----------------               -------------------\n  if (!tqspi-\u003ecurr_xfer)\n    // sees non-NULL\n                                 spin_lock()\n                                 tqspi-\u003ecurr_xfer = NULL\n                                 spin_unlock()\n  handle_*_xfer()\n    spin_lock()\n    t = tqspi-\u003ecurr_xfer  // NULL!\n    ... t-\u003elen ...        // NULL dereference!\n\nWith this patch, all curr_xfer accesses are now properly synchronized.\n\nAlthough all accesses to curr_xfer are done under the lock, in\ntegra_qspi_isr_thread() it checks for NULL, releases the lock and\nreacquires it later in handle_cpu_based_xfer()/handle_dma_based_xfer().\nThere is a potential for an update in between, which could cause a NULL\npointer dereference.\n\nTo handle this, add a NULL check inside the handlers after acquiring\nthe lock. This ensures that if the timeout path has already cleared\ncurr_xfer, the handler will safely return without dereferencing the\nNULL pointer."
    }
  ],
  "id": "CVE-2026-23207",
  "lastModified": "2026-02-14T17:15:58.610",
  "metrics": {},
  "published": "2026-02-14T17:15:58.610",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2ac3a105e51496147c0e44e49466eecfcc532d57"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/edf9088b6e1d6d88982db7eb5e736a0e4fbcc09e"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

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

CVE-2026-23207 (GCVE-0-2026-23207)

GHSA-5XF5-GQ7P-JFX7

FKIE_CVE-2026-23207

Tags

Sightings

Nomenclature