Vulnerability-Lookup

FKIE_CVE-2026-93809

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

Severity

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)

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/27d43ad57759c73b8fad5b2bad62a0616e116bbc
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5063ae84c45299a100bf1d6ed11945f688063649
	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": "5063ae84c45299a100bf1d6ed11945f688063649",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "27d43ad57759c73b8fad5b2bad62a0616e116bbc",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "67a654b41cfa73c3b83402c4a01b2689cad5b9bc",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "6.12.111",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "6.18.53",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        },
        {
          "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": [
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.53",
              "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": "2026-09-24T17:17:13.917",
  "metrics": {},
  "published": "2026-09-24T17:17:13.917",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/27d43ad57759c73b8fad5b2bad62a0616e116bbc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5063ae84c45299a100bf1d6ed11945f688063649"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/67a654b41cfa73c3b83402c4a01b2689cad5b9bc"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

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

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

Title

drm/amdgpu: flush pending RCU callbacks on module unload

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/5063ae84c45299a10…
https://git.kernel.org/stable/c/27d43ad57759c73b8…
https://git.kernel.org/stable/c/67a654b41cfa73c3b…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5063ae84c45299a100bf1d6ed11945f688063649 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 27d43ad57759c73b8fad5b2bad62a0616e116bbc (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 67a654b41cfa73c3b83402c4a01b2689cad5b9bc (git) Affected: 0 , < 6.12.111 (semver) Affected: 0 , < 6.18.53 (semver)
Linux	Linux	Unaffected: 6.12.111 , ≤ 6.12.* (semver) Unaffected: 6.18.53 , ≤ 6.18.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "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": "5063ae84c45299a100bf1d6ed11945f688063649",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "27d43ad57759c73b8fad5b2bad62a0616e116bbc",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "67a654b41cfa73c3b83402c4a01b2689cad5b9bc",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "6.12.111",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "6.18.53",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        },
        {
          "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": [
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.53",
              "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": "6.12.111",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.53",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "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": "2026-09-24T16:02:44.613Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5063ae84c45299a100bf1d6ed11945f688063649"
        },
        {
          "url": "https://git.kernel.org/stable/c/27d43ad57759c73b8fad5b2bad62a0616e116bbc"
        },
        {
          "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": "2026-09-24T16:02:44.613Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.
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FKIE_CVE-2026-93809

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

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