Vulnerability-Lookup

CVE-2026-93256 (GCVE-0-2026-93256)

Vulnerability from cvelistv5 – Published: 2026-09-24 15:51 – Updated: 2026-09-24 15:51

Title

arm64: hibernate: mask DAIF before restoring hibernated kernel

Summary

In the Linux kernel, the following vulnerability has been resolved: arm64: hibernate: mask DAIF before restoring hibernated kernel The arm64 hibernate code manages the exception masking in an unsound way, leading to potential crashes and/or warnings during resume. When a hibernation image is saved in `swsusp_arch_suspend()`, all DAIF exceptions are masked (by virtue of `local_daif_save()`), and the suspended image is saved assuming that all DAIF exceptions will remain masked when the image is restored. When a hibernation image is resumed by `swsusp_arch_resume()`, only interrupts are masked (by virtue of `local_irq_disable()` in `resume_target_kernel()`). When pseudo-NMI is enabled the DAIF.IF bits will be clear, and regardless of pseudo-NMI the DAIF.DA bits will be clear. This means that there are two problems: (1) It is possible to take Debug, SError, or pseudo-NMI exceptions during the resume process. This is unsafe, as during the resume process both the old ane new kernels will tranisently be in an inconsistent state, and swsusp_arch_suspend_exit() won't retain an executable mapping of any exception vectors. Any exception taken here will be fatal and silent. (2) When re-entering the resumed kernel, some DAIF bits will be clear unexpectedly. This permits Debug, SError, or pseudo-NMI exceptions to be taken for a short period while the resumed kernel is not yet in a consistent state. This is detected by CONFIG_ARM64_DEBUG_PRIORITY_MASKING. Avoid these issues by masking all DAIF exceptions during resume.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/c9c671e9ab87b6397…
https://git.kernel.org/stable/c/099ad3edcef1d955d…
https://git.kernel.org/stable/c/716c41bd476334afb…
https://git.kernel.org/stable/c/5370853041a3cb53a…
https://git.kernel.org/stable/c/290c5b0c9fc0c61fb…
https://git.kernel.org/stable/c/012823494e20c3cce…
https://git.kernel.org/stable/c/d736ace2c491623c9…
https://git.kernel.org/stable/c/684bde100117931f4…

Impacted products

2 products

Vendor	Product	Version	CPE status
Linux	Linux	Affected: 82869ac57b5d3b550446932c918dbf2caf020c9e , < c9c671e9ab87b639720db8f7f8648bdf0f3bc8ec (git) Affected: 82869ac57b5d3b550446932c918dbf2caf020c9e , < 099ad3edcef1d955d9f5d6aab16ae78ecdfd4cda (git) Affected: 82869ac57b5d3b550446932c918dbf2caf020c9e , < 716c41bd476334afb943308be9ff2142e34461b7 (git) Affected: 82869ac57b5d3b550446932c918dbf2caf020c9e , < 5370853041a3cb53a125b77528586278f64b378b (git) Affected: 82869ac57b5d3b550446932c918dbf2caf020c9e , < 290c5b0c9fc0c61fb1c41421ed2394f955206ea0 (git) Affected: 82869ac57b5d3b550446932c918dbf2caf020c9e , < 012823494e20c3cce622982ebd3fd6971be39ad2 (git) Affected: 82869ac57b5d3b550446932c918dbf2caf020c9e , < d736ace2c491623c9ab5e73744085e93e9ae3ebe (git) Affected: 82869ac57b5d3b550446932c918dbf2caf020c9e , < 684bde100117931f4c51c644a95f42f2dab041bc (git)	guessed
Linux	Linux	Affected: 4.7 Unaffected: 0 , < 4.7 (semver) Unaffected: 5.10.270 , ≤ 5.10.* (semver) Unaffected: 5.15.221 , ≤ 5.15.* (semver) Unaffected: 6.1.188 , ≤ 6.1.* (semver) Unaffected: 6.6.157 , ≤ 6.6.* (semver) Unaffected: 6.12.110 , ≤ 6.12.* (semver) Unaffected: 6.18.52 , ≤ 6.18.* (semver) Unaffected: 7.2.6 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)	guessed

Show details on NVD website

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{
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          "programFiles": [
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
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              "status": "unaffected",
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              "status": "unaffected",
              "version": "6.18.52",
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              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
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              "status": "unaffected",
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            }
          ]
        }
      ],
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "4.7",
                  "vulnerable": true
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64: hibernate: mask DAIF before restoring hibernated kernel\n\nThe arm64 hibernate code manages the exception masking in an unsound\nway, leading to potential crashes and/or warnings during resume.\n\nWhen a hibernation image is saved in `swsusp_arch_suspend()`, all DAIF\nexceptions are masked (by virtue of `local_daif_save()`), and the\nsuspended image is saved assuming that all DAIF exceptions will remain\nmasked when the image is restored.\n\nWhen a hibernation image is resumed by `swsusp_arch_resume()`, only\ninterrupts are masked (by virtue of `local_irq_disable()` in\n`resume_target_kernel()`). When pseudo-NMI is enabled the DAIF.IF bits\nwill be clear, and regardless of pseudo-NMI the DAIF.DA bits will be\nclear.\n\nThis means that there are two problems:\n\n(1) It is possible to take Debug, SError, or pseudo-NMI exceptions\n    during the resume process. This is unsafe, as during the resume\n    process both the old ane new kernels will tranisently be in an\n    inconsistent state, and swsusp_arch_suspend_exit() won\u0027t retain\n    an executable mapping of any exception vectors.\n\n    Any exception taken here will be fatal and silent.\n\n(2) When re-entering the resumed kernel, some DAIF bits will be clear\n    unexpectedly. This permits Debug, SError, or pseudo-NMI exceptions\n    to be taken for a short period while the resumed kernel is not yet\n    in a consistent state.\n\n    This is detected by CONFIG_ARM64_DEBUG_PRIORITY_MASKING.\n\nAvoid these issues by masking all DAIF exceptions during resume."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-24T15:51:43.080Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/099ad3edcef1d955d9f5d6aab16ae78ecdfd4cda"
        },
        {
          "url": "https://git.kernel.org/stable/c/716c41bd476334afb943308be9ff2142e34461b7"
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        },
        {
          "url": "https://git.kernel.org/stable/c/d736ace2c491623c9ab5e73744085e93e9ae3ebe"
        },
        {
          "url": "https://git.kernel.org/stable/c/684bde100117931f4c51c644a95f42f2dab041bc"
        }
      ],
      "title": "arm64: hibernate: mask DAIF before restoring hibernated kernel",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93256",
    "datePublished": "2026-09-24T15:51:43.080Z",
    "dateReserved": "2026-09-17T16:02:15.096Z",
    "dateUpdated": "2026-09-24T15:51:43.080Z",
    "state": "PUBLISHED"
  },
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64: hibernate: mask DAIF before restoring hibernated kernel\n\nThe arm64 hibernate code manages the exception masking in an unsound\nway, leading to potential crashes and/or warnings during resume.\n\nWhen a hibernation image is saved in `swsusp_arch_suspend()`, all DAIF\nexceptions are masked (by virtue of `local_daif_save()`), and the\nsuspended image is saved assuming that all DAIF exceptions will remain\nmasked when the image is restored.\n\nWhen a hibernation image is resumed by `swsusp_arch_resume()`, only\ninterrupts are masked (by virtue of `local_irq_disable()` in\n`resume_target_kernel()`). When pseudo-NMI is enabled the DAIF.IF bits\nwill be clear, and regardless of pseudo-NMI the DAIF.DA bits will be\nclear.\n\nThis means that there are two problems:\n\n(1) It is possible to take Debug, SError, or pseudo-NMI exceptions\n    during the resume process. This is unsafe, as during the resume\n    process both the old ane new kernels will tranisently be in an\n    inconsistent state, and swsusp_arch_suspend_exit() won\u0027t retain\n    an executable mapping of any exception vectors.\n\n    Any exception taken here will be fatal and silent.\n\n(2) When re-entering the resumed kernel, some DAIF bits will be clear\n    unexpectedly. This permits Debug, SError, or pseudo-NMI exceptions\n    to be taken for a short period while the resumed kernel is not yet\n    in a consistent state.\n\n    This is detected by CONFIG_ARM64_DEBUG_PRIORITY_MASKING.\n\nAvoid these issues by masking all DAIF exceptions during resume."
          }
        ],
        "id": "CVE-2026-93256",
        "lastModified": "2026-09-24T16:17:22.157",
        "metrics": {},
        "published": "2026-09-24T16:17:22.157",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/012823494e20c3cce622982ebd3fd6971be39ad2"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/099ad3edcef1d955d9f5d6aab16ae78ecdfd4cda"
          },
          {
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          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/684bde100117931f4c51c644a95f42f2dab041bc"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/716c41bd476334afb943308be9ff2142e34461b7"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/c9c671e9ab87b639720db8f7f8648bdf0f3bc8ec"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/d736ace2c491623c9ab5e73744085e93e9ae3ebe"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "suse_vex": {
      "aggregate_severity": "not set",
      "current_release_date": "2026-09-24T23:48:58Z",
      "cve": "CVE-2026-93256",
      "id": "CVE-2026-93256",
      "initial_release_date": "2026-09-24T23:48:58Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-93256",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-93256.json",
      "version": "2"
    }
  }
}

FKIE_CVE-2026-93256

Vulnerability from fkie_nvd - Published: 2026-09-24 16:17 - Updated: 2026-09-24 16:17

Severity

Summary

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/012823494e20c3cce622982ebd3fd6971be39ad2
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/099ad3edcef1d955d9f5d6aab16ae78ecdfd4cda
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/290c5b0c9fc0c61fb1c41421ed2394f955206ea0
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5370853041a3cb53a125b77528586278f64b378b
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/684bde100117931f4c51c644a95f42f2dab041bc
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/716c41bd476334afb943308be9ff2142e34461b7
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c9c671e9ab87b639720db8f7f8648bdf0f3bc8ec
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d736ace2c491623c9ab5e73744085e93e9ae3ebe

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/arm64/kernel/hibernate.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c9c671e9ab87b639720db8f7f8648bdf0f3bc8ec",
              "status": "affected",
              "version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
              "versionType": "git"
            },
            {
              "lessThan": "099ad3edcef1d955d9f5d6aab16ae78ecdfd4cda",
              "status": "affected",
              "version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
              "versionType": "git"
            },
            {
              "lessThan": "716c41bd476334afb943308be9ff2142e34461b7",
              "status": "affected",
              "version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
              "versionType": "git"
            },
            {
              "lessThan": "5370853041a3cb53a125b77528586278f64b378b",
              "status": "affected",
              "version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
              "versionType": "git"
            },
            {
              "lessThan": "290c5b0c9fc0c61fb1c41421ed2394f955206ea0",
              "status": "affected",
              "version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
              "versionType": "git"
            },
            {
              "lessThan": "012823494e20c3cce622982ebd3fd6971be39ad2",
              "status": "affected",
              "version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
              "versionType": "git"
            },
            {
              "lessThan": "d736ace2c491623c9ab5e73744085e93e9ae3ebe",
              "status": "affected",
              "version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
              "versionType": "git"
            },
            {
              "lessThan": "684bde100117931f4c51c644a95f42f2dab041bc",
              "status": "affected",
              "version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/arm64/kernel/hibernate.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.7"
            },
            {
              "lessThan": "4.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64: hibernate: mask DAIF before restoring hibernated kernel\n\nThe arm64 hibernate code manages the exception masking in an unsound\nway, leading to potential crashes and/or warnings during resume.\n\nWhen a hibernation image is saved in `swsusp_arch_suspend()`, all DAIF\nexceptions are masked (by virtue of `local_daif_save()`), and the\nsuspended image is saved assuming that all DAIF exceptions will remain\nmasked when the image is restored.\n\nWhen a hibernation image is resumed by `swsusp_arch_resume()`, only\ninterrupts are masked (by virtue of `local_irq_disable()` in\n`resume_target_kernel()`). When pseudo-NMI is enabled the DAIF.IF bits\nwill be clear, and regardless of pseudo-NMI the DAIF.DA bits will be\nclear.\n\nThis means that there are two problems:\n\n(1) It is possible to take Debug, SError, or pseudo-NMI exceptions\n    during the resume process. This is unsafe, as during the resume\n    process both the old ane new kernels will tranisently be in an\n    inconsistent state, and swsusp_arch_suspend_exit() won\u0027t retain\n    an executable mapping of any exception vectors.\n\n    Any exception taken here will be fatal and silent.\n\n(2) When re-entering the resumed kernel, some DAIF bits will be clear\n    unexpectedly. This permits Debug, SError, or pseudo-NMI exceptions\n    to be taken for a short period while the resumed kernel is not yet\n    in a consistent state.\n\n    This is detected by CONFIG_ARM64_DEBUG_PRIORITY_MASKING.\n\nAvoid these issues by masking all DAIF exceptions during resume."
    }
  ],
  "id": "CVE-2026-93256",
  "lastModified": "2026-09-24T16:17:22.157",
  "metrics": {},
  "published": "2026-09-24T16:17:22.157",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/012823494e20c3cce622982ebd3fd6971be39ad2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/099ad3edcef1d955d9f5d6aab16ae78ecdfd4cda"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/290c5b0c9fc0c61fb1c41421ed2394f955206ea0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5370853041a3cb53a125b77528586278f64b378b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/684bde100117931f4c51c644a95f42f2dab041bc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/716c41bd476334afb943308be9ff2142e34461b7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c9c671e9ab87b639720db8f7f8648bdf0f3bc8ec"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d736ace2c491623c9ab5e73744085e93e9ae3ebe"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

GHSA-JF3Q-GP4F-QWVJ

Vulnerability from github – Published: 2026-09-24 18:31 – Updated: 2026-09-24 18:31

Details

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

arm64: hibernate: mask DAIF before restoring hibernated kernel

The arm64 hibernate code manages the exception masking in an unsound way, leading to potential crashes and/or warnings during resume.

When a hibernation image is saved in swsusp_arch_suspend(), all DAIF exceptions are masked (by virtue of local_daif_save()), and the suspended image is saved assuming that all DAIF exceptions will remain masked when the image is restored.

When a hibernation image is resumed by swsusp_arch_resume(), only interrupts are masked (by virtue of local_irq_disable() in resume_target_kernel()). When pseudo-NMI is enabled the DAIF.IF bits will be clear, and regardless of pseudo-NMI the DAIF.DA bits will be clear.

This means that there are two problems:

(1) It is possible to take Debug, SError, or pseudo-NMI exceptions during the resume process. This is unsafe, as during the resume process both the old ane new kernels will tranisently be in an inconsistent state, and swsusp_arch_suspend_exit() won't retain an executable mapping of any exception vectors.

Any exception taken here will be fatal and silent.

(2) When re-entering the resumed kernel, some DAIF bits will be clear unexpectedly. This permits Debug, SError, or pseudo-NMI exceptions to be taken for a short period while the resumed kernel is not yet in a consistent state.

This is detected by CONFIG_ARM64_DEBUG_PRIORITY_MASKING.

Avoid these issues by masking all DAIF exceptions during resume.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-93256"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-24T16:17:22Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64: hibernate: mask DAIF before restoring hibernated kernel\n\nThe arm64 hibernate code manages the exception masking in an unsound\nway, leading to potential crashes and/or warnings during resume.\n\nWhen a hibernation image is saved in `swsusp_arch_suspend()`, all DAIF\nexceptions are masked (by virtue of `local_daif_save()`), and the\nsuspended image is saved assuming that all DAIF exceptions will remain\nmasked when the image is restored.\n\nWhen a hibernation image is resumed by `swsusp_arch_resume()`, only\ninterrupts are masked (by virtue of `local_irq_disable()` in\n`resume_target_kernel()`). When pseudo-NMI is enabled the DAIF.IF bits\nwill be clear, and regardless of pseudo-NMI the DAIF.DA bits will be\nclear.\n\nThis means that there are two problems:\n\n(1) It is possible to take Debug, SError, or pseudo-NMI exceptions\n    during the resume process. This is unsafe, as during the resume\n    process both the old ane new kernels will tranisently be in an\n    inconsistent state, and swsusp_arch_suspend_exit() won\u0027t retain\n    an executable mapping of any exception vectors.\n\n    Any exception taken here will be fatal and silent.\n\n(2) When re-entering the resumed kernel, some DAIF bits will be clear\n    unexpectedly. This permits Debug, SError, or pseudo-NMI exceptions\n    to be taken for a short period while the resumed kernel is not yet\n    in a consistent state.\n\n    This is detected by CONFIG_ARM64_DEBUG_PRIORITY_MASKING.\n\nAvoid these issues by masking all DAIF exceptions during resume.",
  "id": "GHSA-jf3q-gp4f-qwvj",
  "modified": "2026-09-24T18:31:24Z",
  "published": "2026-09-24T18:31:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93256"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/012823494e20c3cce622982ebd3fd6971be39ad2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/099ad3edcef1d955d9f5d6aab16ae78ecdfd4cda"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/290c5b0c9fc0c61fb1c41421ed2394f955206ea0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5370853041a3cb53a125b77528586278f64b378b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/684bde100117931f4c51c644a95f42f2dab041bc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/716c41bd476334afb943308be9ff2142e34461b7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9c671e9ab87b639720db8f7f8648bdf0f3bc8ec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d736ace2c491623c9ab5e73744085e93e9ae3ebe"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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.

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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-93256 (GCVE-0-2026-93256)

FKIE_CVE-2026-93256

GHSA-JF3Q-GP4F-QWVJ

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