Vulnerability-Lookup

CVE-2026-64303 (GCVE-0-2026-64303)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:49 – Updated: 2026-07-27 04:59

Title

spi: fsl-lpspi: terminate the RX channel on TX prepare failure path

Summary

In the Linux kernel, the following vulnerability has been resolved: spi: fsl-lpspi: terminate the RX channel on TX prepare failure path When dmaengine_prep_slave_sg() fails for the TX channel, the error path terminates the TX DMA channel but leaves the RX channel running. Since the RX channel was already submitted and issued prior to preparing the TX descriptor, returning -EINVAL causes the SPI core to unmap the DMA buffers while the RX DMA engine continues writing to them, leading to potential memory corruption or use-after-free. Terminate the RX channel before returning on the TX prepare failure path.

Severity

9.8 (Critical)


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

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/ad370d1c7a9a832f7…
https://git.kernel.org/stable/c/cce2063404b2341e7…
https://git.kernel.org/stable/c/af39a2698f69b584d…
https://git.kernel.org/stable/c/e65505d91fa036a23…
https://git.kernel.org/stable/c/d5c1060218a3749c8…
https://git.kernel.org/stable/c/808033d80d5c9f8ad…
https://git.kernel.org/stable/c/9d000bdd250d649a1…
https://git.kernel.org/stable/c/01980b5da56e573d6…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 09c04466ce7ea494993c0635ba5edb6d2222a806 , < ad370d1c7a9a832f77b2341513cd31188c9443af (git) Affected: 09c04466ce7ea494993c0635ba5edb6d2222a806 , < cce2063404b2341e7b2bbf85eddfcd70a31a0033 (git) Affected: 09c04466ce7ea494993c0635ba5edb6d2222a806 , < af39a2698f69b584d14a00cffe0f51a2caa15337 (git) Affected: 09c04466ce7ea494993c0635ba5edb6d2222a806 , < e65505d91fa036a238968e4c10744244d1b968c4 (git) Affected: 09c04466ce7ea494993c0635ba5edb6d2222a806 , < d5c1060218a3749c8a18b36f8169d910fce20639 (git) Affected: 09c04466ce7ea494993c0635ba5edb6d2222a806 , < 808033d80d5c9f8adf7e8de9317389270ce13430 (git) Affected: 09c04466ce7ea494993c0635ba5edb6d2222a806 , < 9d000bdd250d649a11cd7f733175686877344582 (git) Affected: 09c04466ce7ea494993c0635ba5edb6d2222a806 , < 01980b5da56e573d62798d0ff6c86bcaa2b22cbe (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: 6.12.96 , ≤ 6.12.* (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2-rc1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: fsl-lpspi: terminate the RX channel on TX prepare failure path\n\nWhen dmaengine_prep_slave_sg() fails for the TX channel, the error path\nterminates the TX DMA channel but leaves the RX channel running. Since\nthe RX channel was already submitted and issued prior to preparing\nthe TX descriptor, returning -EINVAL causes the SPI core to unmap the\nDMA buffers while the RX DMA engine continues writing to them, leading\nto potential memory corruption or use-after-free.\n\nTerminate the RX channel before returning on the TX prepare failure path."
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    "datePublished": "2026-07-25T08:49:38.223Z",
    "dateReserved": "2026-07-19T15:36:31.779Z",
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      "percentile": "0.48458"
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      "product_status:under_investigation": "1",
      "source": "Microsoft CSAF VEX",
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      "title": "spi: fsl-lpspi: terminate the RX channel on TX prepare failure path",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-64303.json",
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Since\\nthe RX channel was already submitted and issued prior to preparing\\nthe TX descriptor, returning -EINVAL causes the SPI core to unmap the\\nDMA buffers while the RX DMA engine continues writing to them, leading\\nto potential memory corruption or use-after-free.\\n\\nTerminate the RX channel before returning on the TX prepare failure path.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/spi/spi-fsl-lpspi.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"09c04466ce7ea494993c0635ba5edb6d2222a806\",\"lessThan\":\"ad370d1c7a9a832f77b2341513cd31188c9443af\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"09c04466ce7ea494993c0635ba5edb6d2222a806\",\"lessThan\":\"cce2063404b2341e7b2bbf85eddfcd70a31a0033\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"09c04466ce7ea494993c0635ba5edb6d2222a806\",\"lessThan\":\"af39a2698f69b584d14a00cffe0f51a2caa15337\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"09c04466ce7ea494993c0635ba5edb6d2222a806\",\"lessThan\":\"e65505d91fa036a238968e4c10744244d1b968c4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"09c04466ce7ea494993c0635ba5edb6d2222a806\",\"lessThan\":\"d5c1060218a3749c8a18b36f8169d910fce20639\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"09c04466ce7ea494993c0635ba5edb6d2222a806\",\"lessThan\":\"808033d80d5c9f8adf7e8de9317389270ce13430\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"09c04466ce7ea494993c0635ba5edb6d2222a806\",\"lessThan\":\"9d000bdd250d649a11cd7f733175686877344582\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"09c04466ce7ea494993c0635ba5edb6d2222a806\",\"lessThan\":\"01980b5da56e573d62798d0ff6c86bcaa2b22cbe\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/spi/spi-fsl-lpspi.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.2\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.2\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.261\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.212\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.178\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.145\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.96\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.39\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.4\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2-rc1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/01980b5da56e573d62798d0ff6c86bcaa2b22cbe\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/808033d80d5c9f8adf7e8de9317389270ce13430\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9d000bdd250d649a11cd7f733175686877344582\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ad370d1c7a9a832f77b2341513cd31188c9443af\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/af39a2698f69b584d14a00cffe0f51a2caa15337\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cce2063404b2341e7b2bbf85eddfcd70a31a0033\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d5c1060218a3749c8a18b36f8169d910fce20639\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e65505d91fa036a238968e4c10744244d1b968c4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "suse_vex": {
      "aggregate_severity": "not set",
      "current_release_date": "2026-07-25T16:46:10Z",
      "cve": "CVE-2026-64303",
      "id": "CVE-2026-64303",
      "initial_release_date": "2026-07-25T16:46:10Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-64303",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64303.json",
      "version": "2"
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}

GHSA-8G65-PG22-JQR9

Vulnerability from github – Published: 2026-07-25 12:31 – Updated: 2026-07-27 06:30

Details

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

spi: fsl-lpspi: terminate the RX channel on TX prepare failure path

When dmaengine_prep_slave_sg() fails for the TX channel, the error path terminates the TX DMA channel but leaves the RX channel running. Since the RX channel was already submitted and issued prior to preparing the TX descriptor, returning -EINVAL causes the SPI core to unmap the DMA buffers while the RX DMA engine continues writing to them, leading to potential memory corruption or use-after-free.

Terminate the RX channel before returning on the TX prepare failure path.

Severity

9.8 (Critical)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-64303"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-25T10:17:11Z",
    "severity": "CRITICAL"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: fsl-lpspi: terminate the RX channel on TX prepare failure path\n\nWhen dmaengine_prep_slave_sg() fails for the TX channel, the error path\nterminates the TX DMA channel but leaves the RX channel running. Since\nthe RX channel was already submitted and issued prior to preparing\nthe TX descriptor, returning -EINVAL causes the SPI core to unmap the\nDMA buffers while the RX DMA engine continues writing to them, leading\nto potential memory corruption or use-after-free.\n\nTerminate the RX channel before returning on the TX prepare failure path.",
  "id": "GHSA-8g65-pg22-jqr9",
  "modified": "2026-07-27T06:30:31Z",
  "published": "2026-07-25T12:31:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64303"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/01980b5da56e573d62798d0ff6c86bcaa2b22cbe"
    },
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      "url": "https://git.kernel.org/stable/c/808033d80d5c9f8adf7e8de9317389270ce13430"
    },
    {
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      "url": "https://git.kernel.org/stable/c/9d000bdd250d649a11cd7f733175686877344582"
    },
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      "url": "https://git.kernel.org/stable/c/ad370d1c7a9a832f77b2341513cd31188c9443af"
    },
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      "url": "https://git.kernel.org/stable/c/d5c1060218a3749c8a18b36f8169d910fce20639"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e65505d91fa036a238968e4c10744244d1b968c4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-64303 (GCVE-0-2026-64303)

GHSA-8G65-PG22-JQR9

Tags

Sightings

Nomenclature