Vulnerability-Lookup

CVE-2026-93809 (GCVE-0-2026-93809)

Vulnerability from cvelistv5 – Published: 2026-09-24 16:02 – Updated: 2026-09-25 12:43

Title

drm/amdgpu: flush pending RCU callbacks on module unload

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: flush pending RCU callbacks on module unload Call rcu_barrier() in module exit to wait for outstanding call_rcu() callbacks before freeing module text, preventing late callback execution in freed memory. BUG: unable to handle page fault for address: ffffffffc1d59c40 PGD 6a12067 P4D 6a12067 PUD 6a14067 PMD 13698b067 PTE 0 Oops: 0010 [#1] SMP NOPTI RIP: 0010:0xffffffffc1d59c40 Code: Unable to access opcode bytes at RIP 0xffffffffc1d59c16. RSP: 0018:ffffc900198c0f28 EFLAGS: 00010286 RAX: ffffffffc1d59c40 RBX: ffff897c7d6b61c0 RCX: ffff88826aff4590 RDX: ffff8884d8b35490 RSI: ffffc900198c0f30 RDI: ffff88812af67290 RBP: 000000000000000a (DONE segment entries) R08: 0000000000000000 R09: 0000000000000100 R10: 0000000000000000 R11: ffffffff82a06100 R12: ffff88811a4e3700 R13: 0000000000000000 R14: ffff897c7d6b6270 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff897c7d680000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffc1d59c16 CR3: 00000104a980a001 CR4: 0000000002770ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <IRQ> ? rcu_do_batch+0x163/0x450 ? rcu_core+0x177/0x1c0 ? __do_softirq+0xc1/0x280 ? asm_call_irq_on_stack+0xf/0x20 </IRQ> ? do_softirq_own_stack+0x37/0x50 ? irq_exit_rcu+0xc4/0x100 ? sysvec_apic_timer_interrupt+0x36/0x80 ? asm_sysvec_apic_timer_interrupt+0x12/0x20 ? cpuidle_enter_state+0xd4/0x360 ? cpuidle_enter+0x29/0x40 ? cpuidle_idle_call+0x108/0x1a0 ? do_idle+0x77/0xf0 ? cpu_startup_entry+0x19/0x20 ? secondary_startup_64_no_verify+0xbf/0xcb (cherry picked from commit feaa5039f6c12acc9aa934c2d45dcd251a12c69f)

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7097 records in the last 180 days details

References

1 reference

URL	Tags
https://git.kernel.org/stable/c/67a654b41cfa73c3b…

Impacted products

2 products

Vendor	Product	Version	CPE status
Linux	Linux	Affected: 4e02e0afa95f691dc7cc17538cdd648089a843f0 , < 67a654b41cfa73c3b83402c4a01b2689cad5b9bc (git)	guessed
Linux	Linux	Affected: 7.1 Unaffected: 0 , < 7.1 (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)	guessed

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "67a654b41cfa73c3b83402c4a01b2689cad5b9bc",
              "status": "affected",
              "version": "4e02e0afa95f691dc7cc17538cdd648089a843f0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.1"
            },
            {
              "lessThan": "7.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "7.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: flush pending RCU callbacks on module unload\n\nCall rcu_barrier() in module exit to wait for outstanding call_rcu() callbacks\nbefore freeing module text, preventing late callback execution in freed memory.\n\nBUG: unable to handle page fault for address: ffffffffc1d59c40\nPGD 6a12067 P4D 6a12067 PUD 6a14067 PMD 13698b067 PTE 0\nOops: 0010 [#1] SMP NOPTI\nRIP: 0010:0xffffffffc1d59c40\nCode: Unable to access opcode bytes at RIP 0xffffffffc1d59c16.\nRSP: 0018:ffffc900198c0f28 EFLAGS: 00010286\nRAX: ffffffffc1d59c40 RBX: ffff897c7d6b61c0 RCX: ffff88826aff4590\nRDX: ffff8884d8b35490 RSI: ffffc900198c0f30 RDI: ffff88812af67290\nRBP: 000000000000000a (DONE segment entries) R08: 0000000000000000 R09: 0000000000000100\nR10: 0000000000000000 R11: ffffffff82a06100 R12: ffff88811a4e3700\nR13: 0000000000000000 R14: ffff897c7d6b6270 R15: 0000000000000000\nFS:  0000000000000000(0000) GS:ffff897c7d680000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffffffc1d59c16 CR3: 00000104a980a001 CR4: 0000000002770ee0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400\nPKRU: 55555554\nCall Trace:\n \u003cIRQ\u003e\n ? rcu_do_batch+0x163/0x450\n ? rcu_core+0x177/0x1c0\n ? __do_softirq+0xc1/0x280\n ? asm_call_irq_on_stack+0xf/0x20\n \u003c/IRQ\u003e\n ? do_softirq_own_stack+0x37/0x50\n ? irq_exit_rcu+0xc4/0x100\n ? sysvec_apic_timer_interrupt+0x36/0x80\n ? asm_sysvec_apic_timer_interrupt+0x12/0x20\n ? cpuidle_enter_state+0xd4/0x360\n ? cpuidle_enter+0x29/0x40\n ? cpuidle_idle_call+0x108/0x1a0\n ? do_idle+0x77/0xf0\n ? cpu_startup_entry+0x19/0x20\n ? secondary_startup_64_no_verify+0xbf/0xcb\n\n(cherry picked from commit feaa5039f6c12acc9aa934c2d45dcd251a12c69f)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-25T12:43:17.218Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/67a654b41cfa73c3b83402c4a01b2689cad5b9bc"
        }
      ],
      "title": "drm/amdgpu: flush pending RCU callbacks on module unload",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93809",
    "datePublished": "2026-09-24T16:02:44.613Z",
    "dateReserved": "2026-09-18T17:59:28.790Z",
    "dateUpdated": "2026-09-25T12:43:17.218Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-93809",
      "date": "2026-10-18",
      "epss": "0.00166",
      "percentile": "0.05506"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "67a654b41cfa73c3b83402c4a01b2689cad5b9bc",
                    "status": "affected",
                    "version": "4e02e0afa95f691dc7cc17538cdd648089a843f0",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "7.1"
                  },
                  {
                    "lessThan": "7.1",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "7.2",
                    "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\ndrm/amdgpu: flush pending RCU callbacks on module unload\n\nCall rcu_barrier() in module exit to wait for outstanding call_rcu() callbacks\nbefore freeing module text, preventing late callback execution in freed memory.\n\nBUG: unable to handle page fault for address: ffffffffc1d59c40\nPGD 6a12067 P4D 6a12067 PUD 6a14067 PMD 13698b067 PTE 0\nOops: 0010 [#1] SMP NOPTI\nRIP: 0010:0xffffffffc1d59c40\nCode: Unable to access opcode bytes at RIP 0xffffffffc1d59c16.\nRSP: 0018:ffffc900198c0f28 EFLAGS: 00010286\nRAX: ffffffffc1d59c40 RBX: ffff897c7d6b61c0 RCX: ffff88826aff4590\nRDX: ffff8884d8b35490 RSI: ffffc900198c0f30 RDI: ffff88812af67290\nRBP: 000000000000000a (DONE segment entries) R08: 0000000000000000 R09: 0000000000000100\nR10: 0000000000000000 R11: ffffffff82a06100 R12: ffff88811a4e3700\nR13: 0000000000000000 R14: ffff897c7d6b6270 R15: 0000000000000000\nFS:  0000000000000000(0000) GS:ffff897c7d680000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffffffc1d59c16 CR3: 00000104a980a001 CR4: 0000000002770ee0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400\nPKRU: 55555554\nCall Trace:\n \u003cIRQ\u003e\n ? rcu_do_batch+0x163/0x450\n ? rcu_core+0x177/0x1c0\n ? __do_softirq+0xc1/0x280\n ? asm_call_irq_on_stack+0xf/0x20\n \u003c/IRQ\u003e\n ? do_softirq_own_stack+0x37/0x50\n ? irq_exit_rcu+0xc4/0x100\n ? sysvec_apic_timer_interrupt+0x36/0x80\n ? asm_sysvec_apic_timer_interrupt+0x12/0x20\n ? cpuidle_enter_state+0xd4/0x360\n ? cpuidle_enter+0x29/0x40\n ? cpuidle_idle_call+0x108/0x1a0\n ? do_idle+0x77/0xf0\n ? cpu_startup_entry+0x19/0x20\n ? secondary_startup_64_no_verify+0xbf/0xcb\n\n(cherry picked from commit feaa5039f6c12acc9aa934c2d45dcd251a12c69f)"
          }
        ],
        "id": "CVE-2026-93809",
        "lastModified": "2026-09-25T13:17:21.763",
        "metrics": {},
        "published": "2026-09-24T17:17:13.917",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/67a654b41cfa73c3b83402c4a01b2689cad5b9bc"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-10-17T21:39:02+00:00",
      "cve": "CVE-2026-93809",
      "id": "CVE-2026-93809",
      "initial_release_date": "2026-09-24T00:00:00+00:00",
      "product_status:known_affected": "14",
      "product_status:known_not_affected": "263",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/amdgpu: flush pending RCU callbacks on module unload",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93809.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-28T23:43:47Z",
      "cve": "CVE-2026-93809",
      "id": "CVE-2026-93809",
      "initial_release_date": "2026-09-24T23:47:23Z",
      "product_status:known_not_affected": "347",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-93809",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-93809.json",
      "version": "4"
    }
  }
}

BELL-CVE-2026-93809 (CVE-2026-93809)

Vulnerability from osv_bellsoft – Published: 2026-09-26 06:06 – Updated: 2026-09-26 06:17 – Source website

Withdrawn 2026-09-26

Summary

CVE-2026-93809 does not affect BellSoft software

References

URL

Type

https://docs.bell-sw.com/security/cves/CVE-2026-93809

ADVISORY

JSON

To clipboard

{
  "id": "BELL-CVE-2026-93809",
  "modified": "2026-09-26T06:17:11.369566Z",
  "published": "2026-09-26T06:06:09.371370Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://docs.bell-sw.com/security/cves/CVE-2026-93809"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "CVE-2026-93809 does not affect BellSoft software",
  "upstream": [
    "CVE-2026-93809"
  ],
  "withdrawn": "2026-09-26T06:17:11.369566Z"
}

FKIE_CVE-2026-93809

Vulnerability from fkie_nvd - Published: 2026-09-24 17:17 - Updated: 2026-09-25 13:17

Severity

Summary

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/67a654b41cfa73c3b83402c4a01b2689cad5b9bc

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "67a654b41cfa73c3b83402c4a01b2689cad5b9bc",
              "status": "affected",
              "version": "4e02e0afa95f691dc7cc17538cdd648089a843f0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.1"
            },
            {
              "lessThan": "7.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "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\ndrm/amdgpu: flush pending RCU callbacks on module unload\n\nCall rcu_barrier() in module exit to wait for outstanding call_rcu() callbacks\nbefore freeing module text, preventing late callback execution in freed memory.\n\nBUG: unable to handle page fault for address: ffffffffc1d59c40\nPGD 6a12067 P4D 6a12067 PUD 6a14067 PMD 13698b067 PTE 0\nOops: 0010 [#1] SMP NOPTI\nRIP: 0010:0xffffffffc1d59c40\nCode: Unable to access opcode bytes at RIP 0xffffffffc1d59c16.\nRSP: 0018:ffffc900198c0f28 EFLAGS: 00010286\nRAX: ffffffffc1d59c40 RBX: ffff897c7d6b61c0 RCX: ffff88826aff4590\nRDX: ffff8884d8b35490 RSI: ffffc900198c0f30 RDI: ffff88812af67290\nRBP: 000000000000000a (DONE segment entries) R08: 0000000000000000 R09: 0000000000000100\nR10: 0000000000000000 R11: ffffffff82a06100 R12: ffff88811a4e3700\nR13: 0000000000000000 R14: ffff897c7d6b6270 R15: 0000000000000000\nFS:  0000000000000000(0000) GS:ffff897c7d680000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffffffc1d59c16 CR3: 00000104a980a001 CR4: 0000000002770ee0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400\nPKRU: 55555554\nCall Trace:\n \u003cIRQ\u003e\n ? rcu_do_batch+0x163/0x450\n ? rcu_core+0x177/0x1c0\n ? __do_softirq+0xc1/0x280\n ? asm_call_irq_on_stack+0xf/0x20\n \u003c/IRQ\u003e\n ? do_softirq_own_stack+0x37/0x50\n ? irq_exit_rcu+0xc4/0x100\n ? sysvec_apic_timer_interrupt+0x36/0x80\n ? asm_sysvec_apic_timer_interrupt+0x12/0x20\n ? cpuidle_enter_state+0xd4/0x360\n ? cpuidle_enter+0x29/0x40\n ? cpuidle_idle_call+0x108/0x1a0\n ? do_idle+0x77/0xf0\n ? cpu_startup_entry+0x19/0x20\n ? secondary_startup_64_no_verify+0xbf/0xcb\n\n(cherry picked from commit feaa5039f6c12acc9aa934c2d45dcd251a12c69f)"
    }
  ],
  "id": "CVE-2026-93809",
  "lastModified": "2026-09-25T13:17:21.763",
  "metrics": {},
  "published": "2026-09-24T17:17:13.917",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/67a654b41cfa73c3b83402c4a01b2689cad5b9bc"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

GHSA-H4GF-5W5M-M3J2

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:

drm/amdgpu: flush pending RCU callbacks on module unload

Call rcu_barrier() in module exit to wait for outstanding call_rcu() callbacks before freeing module text, preventing late callback execution in freed memory.

BUG: unable to handle page fault for address: ffffffffc1d59c40 PGD 6a12067 P4D 6a12067 PUD 6a14067 PMD 13698b067 PTE 0 Oops: 0010 [#1] SMP NOPTI RIP: 0010:0xffffffffc1d59c40 Code: Unable to access opcode bytes at RIP 0xffffffffc1d59c16. RSP: 0018:ffffc900198c0f28 EFLAGS: 00010286 RAX: ffffffffc1d59c40 RBX: ffff897c7d6b61c0 RCX: ffff88826aff4590 RDX: ffff8884d8b35490 RSI: ffffc900198c0f30 RDI: ffff88812af67290 RBP: 000000000000000a (DONE segment entries) R08: 0000000000000000 R09: 0000000000000100 R10: 0000000000000000 R11: ffffffff82a06100 R12: ffff88811a4e3700 R13: 0000000000000000 R14: ffff897c7d6b6270 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff897c7d680000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffc1d59c16 CR3: 00000104a980a001 CR4: 0000000002770ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: ? rcu_do_batch+0x163/0x450 ? rcu_core+0x177/0x1c0 ? __do_softirq+0xc1/0x280 ? asm_call_irq_on_stack+0xf/0x20 ? do_softirq_own_stack+0x37/0x50 ? irq_exit_rcu+0xc4/0x100 ? sysvec_apic_timer_interrupt+0x36/0x80 ? asm_sysvec_apic_timer_interrupt+0x12/0x20 ? cpuidle_enter_state+0xd4/0x360 ? cpuidle_enter+0x29/0x40 ? cpuidle_idle_call+0x108/0x1a0 ? do_idle+0x77/0xf0 ? cpu_startup_entry+0x19/0x20 ? secondary_startup_64_no_verify+0xbf/0xcb

(cherry picked from commit feaa5039f6c12acc9aa934c2d45dcd251a12c69f)

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-93809"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-24T17:17:13Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: flush pending RCU callbacks on module unload\n\nCall rcu_barrier() in module exit to wait for outstanding call_rcu() callbacks\nbefore freeing module text, preventing late callback execution in freed memory.\n\nBUG: unable to handle page fault for address: ffffffffc1d59c40\nPGD 6a12067 P4D 6a12067 PUD 6a14067 PMD 13698b067 PTE 0\nOops: 0010 [#1] SMP NOPTI\nRIP: 0010:0xffffffffc1d59c40\nCode: Unable to access opcode bytes at RIP 0xffffffffc1d59c16.\nRSP: 0018:ffffc900198c0f28 EFLAGS: 00010286\nRAX: ffffffffc1d59c40 RBX: ffff897c7d6b61c0 RCX: ffff88826aff4590\nRDX: ffff8884d8b35490 RSI: ffffc900198c0f30 RDI: ffff88812af67290\nRBP: 000000000000000a (DONE segment entries) R08: 0000000000000000 R09: 0000000000000100\nR10: 0000000000000000 R11: ffffffff82a06100 R12: ffff88811a4e3700\nR13: 0000000000000000 R14: ffff897c7d6b6270 R15: 0000000000000000\nFS:  0000000000000000(0000) GS:ffff897c7d680000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffffffc1d59c16 CR3: 00000104a980a001 CR4: 0000000002770ee0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400\nPKRU: 55555554\nCall Trace:\n \u003cIRQ\u003e\n ? rcu_do_batch+0x163/0x450\n ? rcu_core+0x177/0x1c0\n ? __do_softirq+0xc1/0x280\n ? asm_call_irq_on_stack+0xf/0x20\n \u003c/IRQ\u003e\n ? do_softirq_own_stack+0x37/0x50\n ? irq_exit_rcu+0xc4/0x100\n ? sysvec_apic_timer_interrupt+0x36/0x80\n ? asm_sysvec_apic_timer_interrupt+0x12/0x20\n ? cpuidle_enter_state+0xd4/0x360\n ? cpuidle_enter+0x29/0x40\n ? cpuidle_idle_call+0x108/0x1a0\n ? do_idle+0x77/0xf0\n ? cpu_startup_entry+0x19/0x20\n ? secondary_startup_64_no_verify+0xbf/0xcb\n\n(cherry picked from commit feaa5039f6c12acc9aa934c2d45dcd251a12c69f)",
  "id": "GHSA-h4gf-5w5m-m3j2",
  "modified": "2026-09-24T18:31:30Z",
  "published": "2026-09-24T18:31:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93809"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/27d43ad57759c73b8fad5b2bad62a0616e116bbc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5063ae84c45299a100bf1d6ed11945f688063649"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/67a654b41cfa73c3b83402c4a01b2689cad5b9bc"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

UBUNTU-CVE-2026-93809 (CVE-2026-93809)

Vulnerability from osv_ubuntu – Published: 2026-09-24 17:17 – Updated: 2026-10-19 08:07 – Source website

Details

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: flush pending RCU callbacks on module unload Call rcu_barrier() in module exit to wait for outstanding call_rcu() callbacks before freeing module text, preventing late callback execution in freed memory. BUG: unable to handle page fault for address: ffffffffc1d59c40 PGD 6a12067 P4D 6a12067 PUD 6a14067 PMD 13698b067 PTE 0 Oops: 0010 [#1] SMP NOPTI RIP: 0010:0xffffffffc1d59c40 Code: Unable to access opcode bytes at RIP 0xffffffffc1d59c16. RSP: 0018:ffffc900198c0f28 EFLAGS: 00010286 RAX: ffffffffc1d59c40 RBX: ffff897c7d6b61c0 RCX: ffff88826aff4590 RDX: ffff8884d8b35490 RSI: ffffc900198c0f30 RDI: ffff88812af67290 RBP: 000000000000000a (DONE segment entries) R08: 0000000000000000 R09: 0000000000000100 R10: 0000000000000000 R11: ffffffff82a06100 R12: ffff88811a4e3700 R13: 0000000000000000 R14: ffff897c7d6b6270 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff897c7d680000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffc1d59c16 CR3: 00000104a980a001 CR4: 0000000002770ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: ? rcu_do_batch+0x163/0x450 ? rcu_core+0x177/0x1c0 ? __do_softirq+0xc1/0x280 ? asm_call_irq_on_stack+0xf/0x20 ? do_softirq_own_stack+0x37/0x50 ? irq_exit_rcu+0xc4/0x100 ? sysvec_apic_timer_interrupt+0x36/0x80 ? asm_sysvec_apic_timer_interrupt+0x12/0x20 ? cpuidle_enter_state+0xd4/0x360 ? cpuidle_enter+0x29/0x40 ? cpuidle_idle_call+0x108/0x1a0 ? do_idle+0x77/0xf0 ? cpu_startup_entry+0x19/0x20 ? secondary_startup_64_no_verify+0xbf/0xcb (cherry picked from commit feaa5039f6c12acc9aa934c2d45dcd251a12c69f)

Severity

N/A (UNKNOWN)

low

References

URL

Type

	https://ubuntu.com/security/CVE-2026-93809	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-93809	REPORT
	https://git.kernel.org/stable/c/27d43ad57759c73b8…	REPORT
	https://git.kernel.org/stable/c/67a654b41cfa73c3b…	REPORT
	https://git.kernel.org/stable/c/5063ae84c45299a10…	REPORT

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WID-SEC-W-2026-3579

Vulnerability from csaf_certbund - Published: 2026-09-24 22:00 - Updated: 2026-10-08 22:00

Summary

Linux Kernel: Mehrere Schwachstellen

Severity

Mittel

Scope

593 vulnerabilities in this advisory, including CVE-2026-93809.

CVE-2026-93809

Known affected: 7 products

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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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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-2026-93809 (GCVE-0-2026-93809)

BELL-CVE-2026-93809 (CVE-2026-93809)

FKIE_CVE-2026-93809

GHSA-H4GF-5W5M-M3J2

UBUNTU-CVE-2026-93809 (CVE-2026-93809)

WID-SEC-W-2026-3579

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