Vulnerability-Lookup

GHSA-HF83-4CF4-3G22

Vulnerability from github – Published: 2024-05-19 12:30 – Updated: 2024-10-29 21:30

Details

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

drm: Check output polling initialized before disabling

In drm_kms_helper_poll_disable() check if output polling support is initialized before disabling polling. If not flag this as a warning. Additionally in drm_mode_config_helper_suspend() and drm_mode_config_helper_resume() calls, that re the callers of these functions, avoid invoking them if polling is not initialized. For drivers like hyperv-drm, that do not initialize connector polling, if suspend is called without this check, it leads to suspend failure with following stack [ 770.719392] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. [ 770.720592] printk: Suspending console(s) (use no_console_suspend to debug) [ 770.948823] ------------[ cut here ]------------ [ 770.948824] WARNING: CPU: 1 PID: 17197 at kernel/workqueue.c:3162 __flush_work.isra.0+0x212/0x230 [ 770.948831] Modules linked in: rfkill nft_counter xt_conntrack xt_owner udf nft_compat crc_itu_t nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables nfnetlink vfat fat mlx5_ib ib_uverbs ib_core mlx5_core intel_rapl_msr intel_rapl_common kvm_amd ccp mlxfw kvm psample hyperv_drm tls drm_shmem_helper drm_kms_helper irqbypass pcspkr syscopyarea sysfillrect sysimgblt hv_balloon hv_utils joydev drm fuse xfs libcrc32c pci_hyperv pci_hyperv_intf sr_mod sd_mod cdrom t10_pi sg hv_storvsc scsi_transport_fc hv_netvsc serio_raw hyperv_keyboard hid_hyperv crct10dif_pclmul crc32_pclmul crc32c_intel hv_vmbus ghash_clmulni_intel dm_mirror dm_region_hash dm_log dm_mod [ 770.948863] CPU: 1 PID: 17197 Comm: systemd-sleep Not tainted 5.14.0-362.2.1.el9_3.x86_64 #1 [ 770.948865] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 05/09/2022 [ 770.948866] RIP: 0010:__flush_work.isra.0+0x212/0x230 [ 770.948869] Code: 8b 4d 00 4c 8b 45 08 89 ca 48 c1 e9 04 83 e2 08 83 e1 0f 83 ca 02 89 c8 48 0f ba 6d 00 03 e9 25 ff ff ff 0f 0b e9 4e ff ff ff <0f> 0b 45 31 ed e9 44 ff ff ff e8 8f 89 b2 00 66 66 2e 0f 1f 84 00 [ 770.948870] RSP: 0018:ffffaf4ac213fb10 EFLAGS: 00010246 [ 770.948871] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8c992857 [ 770.948872] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff9aad82b00330 [ 770.948873] RBP: ffff9aad82b00330 R08: 0000000000000000 R09: ffff9aad87ee3d10 [ 770.948874] R10: 0000000000000200 R11: 0000000000000000 R12: ffff9aad82b00330 [ 770.948874] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 770.948875] FS: 00007ff1b2f6bb40(0000) GS:ffff9aaf37d00000(0000) knlGS:0000000000000000 [ 770.948878] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 770.948878] CR2: 0000555f345cb666 CR3: 00000001462dc005 CR4: 0000000000370ee0 [ 770.948879] Call Trace: [ 770.948880] [ 770.948881] ? show_trace_log_lvl+0x1c4/0x2df [ 770.948884] ? show_trace_log_lvl+0x1c4/0x2df [ 770.948886] ? __cancel_work_timer+0x103/0x190 [ 770.948887] ? __flush_work.isra.0+0x212/0x230 [ 770.948889] ? __warn+0x81/0x110 [ 770.948891] ? __flush_work.isra.0+0x212/0x230 [ 770.948892] ? report_bug+0x10a/0x140 [ 770.948895] ? handle_bug+0x3c/0x70 [ 770.948898] ? exc_invalid_op+0x14/0x70 [ 770.948899] ? asm_exc_invalid_op+0x16/0x20 [ 770.948903] ? __flush_work.isra.0+0x212/0x230 [ 770.948905] __cancel_work_timer+0x103/0x190 [ 770.948907] ? _raw_spin_unlock_irqrestore+0xa/0x30 [ 770.948910] drm_kms_helper_poll_disable+0x1e/0x40 [drm_kms_helper] [ 770.948923] drm_mode_config_helper_suspend+0x1c/0x80 [drm_kms_helper] [ 770.948933] ? __pfx_vmbus_suspend+0x10/0x10 [hv_vmbus] [ 770.948942] hyperv_vmbus_suspend+0x17/0x40 [hyperv_drm] [ 770.948944] ? __pfx_vmbus_suspend+0x10/0x10 [hv_vmbus] [ 770.948951] dpm_run_callback+0x4c/0x140 [ 770.948954] __device_suspend_noir ---truncated---

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-35927"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-19T11:15:48Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: Check output polling initialized before disabling\n\nIn drm_kms_helper_poll_disable() check if output polling\nsupport is initialized before disabling polling. If not flag\nthis as a warning.\nAdditionally in drm_mode_config_helper_suspend() and\ndrm_mode_config_helper_resume() calls, that re the callers of these\nfunctions, avoid invoking them if polling is not initialized.\nFor drivers like hyperv-drm, that do not initialize connector\npolling, if suspend is called without this check, it leads to\nsuspend failure with following stack\n[  770.719392] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.\n[  770.720592] printk: Suspending console(s) (use no_console_suspend to debug)\n[  770.948823] ------------[ cut here ]------------\n[  770.948824] WARNING: CPU: 1 PID: 17197 at kernel/workqueue.c:3162 __flush_work.isra.0+0x212/0x230\n[  770.948831] Modules linked in: rfkill nft_counter xt_conntrack xt_owner udf nft_compat crc_itu_t nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables nfnetlink vfat fat mlx5_ib ib_uverbs ib_core mlx5_core intel_rapl_msr intel_rapl_common kvm_amd ccp mlxfw kvm psample hyperv_drm tls drm_shmem_helper drm_kms_helper irqbypass pcspkr syscopyarea sysfillrect sysimgblt hv_balloon hv_utils joydev drm fuse xfs libcrc32c pci_hyperv pci_hyperv_intf sr_mod sd_mod cdrom t10_pi sg hv_storvsc scsi_transport_fc hv_netvsc serio_raw hyperv_keyboard hid_hyperv crct10dif_pclmul crc32_pclmul crc32c_intel hv_vmbus ghash_clmulni_intel dm_mirror dm_region_hash dm_log dm_mod\n[  770.948863] CPU: 1 PID: 17197 Comm: systemd-sleep Not tainted 5.14.0-362.2.1.el9_3.x86_64 #1\n[  770.948865] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 05/09/2022\n[  770.948866] RIP: 0010:__flush_work.isra.0+0x212/0x230\n[  770.948869] Code: 8b 4d 00 4c 8b 45 08 89 ca 48 c1 e9 04 83 e2 08 83 e1 0f 83 ca 02 89 c8 48 0f ba 6d 00 03 e9 25 ff ff ff 0f 0b e9 4e ff ff ff \u003c0f\u003e 0b 45 31 ed e9 44 ff ff ff e8 8f 89 b2 00 66 66 2e 0f 1f 84 00\n[  770.948870] RSP: 0018:ffffaf4ac213fb10 EFLAGS: 00010246\n[  770.948871] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8c992857\n[  770.948872] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff9aad82b00330\n[  770.948873] RBP: ffff9aad82b00330 R08: 0000000000000000 R09: ffff9aad87ee3d10\n[  770.948874] R10: 0000000000000200 R11: 0000000000000000 R12: ffff9aad82b00330\n[  770.948874] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001\n[  770.948875] FS:  00007ff1b2f6bb40(0000) GS:ffff9aaf37d00000(0000) knlGS:0000000000000000\n[  770.948878] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  770.948878] CR2: 0000555f345cb666 CR3: 00000001462dc005 CR4: 0000000000370ee0\n[  770.948879] Call Trace:\n[  770.948880]  \u003cTASK\u003e\n[  770.948881]  ? show_trace_log_lvl+0x1c4/0x2df\n[  770.948884]  ? show_trace_log_lvl+0x1c4/0x2df\n[  770.948886]  ? __cancel_work_timer+0x103/0x190\n[  770.948887]  ? __flush_work.isra.0+0x212/0x230\n[  770.948889]  ? __warn+0x81/0x110\n[  770.948891]  ? __flush_work.isra.0+0x212/0x230\n[  770.948892]  ? report_bug+0x10a/0x140\n[  770.948895]  ? handle_bug+0x3c/0x70\n[  770.948898]  ? exc_invalid_op+0x14/0x70\n[  770.948899]  ? asm_exc_invalid_op+0x16/0x20\n[  770.948903]  ? __flush_work.isra.0+0x212/0x230\n[  770.948905]  __cancel_work_timer+0x103/0x190\n[  770.948907]  ? _raw_spin_unlock_irqrestore+0xa/0x30\n[  770.948910]  drm_kms_helper_poll_disable+0x1e/0x40 [drm_kms_helper]\n[  770.948923]  drm_mode_config_helper_suspend+0x1c/0x80 [drm_kms_helper]\n[  770.948933]  ? __pfx_vmbus_suspend+0x10/0x10 [hv_vmbus]\n[  770.948942]  hyperv_vmbus_suspend+0x17/0x40 [hyperv_drm]\n[  770.948944]  ? __pfx_vmbus_suspend+0x10/0x10 [hv_vmbus]\n[  770.948951]  dpm_run_callback+0x4c/0x140\n[  770.948954]  __device_suspend_noir\n---truncated---",
  "id": "GHSA-hf83-4cf4-3g22",
  "modified": "2024-10-29T21:30:46Z",
  "published": "2024-05-19T12:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35927"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/18451798f4a4e7418b9fad7e7dd313fe84b1f545"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d1b47e3a935abd4f258a945db87e7267ff4079c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ad8d57d902fbc7c82507cfc1b031f3a07c3de6e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5abffb66d12bcac84bf7b66389c571b8bb6e82bd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/786c27982a39d79cc753f84229eb5977ac8ef1c1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-35927 (GCVE-0-2024-35927)

Vulnerability from cvelistv5 – Published: 2024-05-19 10:10 – Updated: 2026-05-11 20:13

Title

drm: Check output polling initialized before disabling

Summary

In the Linux kernel, the following vulnerability has been resolved: drm: Check output polling initialized before disabling In drm_kms_helper_poll_disable() check if output polling support is initialized before disabling polling. If not flag this as a warning. Additionally in drm_mode_config_helper_suspend() and drm_mode_config_helper_resume() calls, that re the callers of these functions, avoid invoking them if polling is not initialized. For drivers like hyperv-drm, that do not initialize connector polling, if suspend is called without this check, it leads to suspend failure with following stack [ 770.719392] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. [ 770.720592] printk: Suspending console(s) (use no_console_suspend to debug) [ 770.948823] ------------[ cut here ]------------ [ 770.948824] WARNING: CPU: 1 PID: 17197 at kernel/workqueue.c:3162 __flush_work.isra.0+0x212/0x230 [ 770.948831] Modules linked in: rfkill nft_counter xt_conntrack xt_owner udf nft_compat crc_itu_t nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables nfnetlink vfat fat mlx5_ib ib_uverbs ib_core mlx5_core intel_rapl_msr intel_rapl_common kvm_amd ccp mlxfw kvm psample hyperv_drm tls drm_shmem_helper drm_kms_helper irqbypass pcspkr syscopyarea sysfillrect sysimgblt hv_balloon hv_utils joydev drm fuse xfs libcrc32c pci_hyperv pci_hyperv_intf sr_mod sd_mod cdrom t10_pi sg hv_storvsc scsi_transport_fc hv_netvsc serio_raw hyperv_keyboard hid_hyperv crct10dif_pclmul crc32_pclmul crc32c_intel hv_vmbus ghash_clmulni_intel dm_mirror dm_region_hash dm_log dm_mod [ 770.948863] CPU: 1 PID: 17197 Comm: systemd-sleep Not tainted 5.14.0-362.2.1.el9_3.x86_64 #1 [ 770.948865] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 05/09/2022 [ 770.948866] RIP: 0010:__flush_work.isra.0+0x212/0x230 [ 770.948869] Code: 8b 4d 00 4c 8b 45 08 89 ca 48 c1 e9 04 83 e2 08 83 e1 0f 83 ca 02 89 c8 48 0f ba 6d 00 03 e9 25 ff ff ff 0f 0b e9 4e ff ff ff <0f> 0b 45 31 ed e9 44 ff ff ff e8 8f 89 b2 00 66 66 2e 0f 1f 84 00 [ 770.948870] RSP: 0018:ffffaf4ac213fb10 EFLAGS: 00010246 [ 770.948871] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8c992857 [ 770.948872] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff9aad82b00330 [ 770.948873] RBP: ffff9aad82b00330 R08: 0000000000000000 R09: ffff9aad87ee3d10 [ 770.948874] R10: 0000000000000200 R11: 0000000000000000 R12: ffff9aad82b00330 [ 770.948874] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 770.948875] FS: 00007ff1b2f6bb40(0000) GS:ffff9aaf37d00000(0000) knlGS:0000000000000000 [ 770.948878] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 770.948878] CR2: 0000555f345cb666 CR3: 00000001462dc005 CR4: 0000000000370ee0 [ 770.948879] Call Trace: [ 770.948880] <TASK> [ 770.948881] ? show_trace_log_lvl+0x1c4/0x2df [ 770.948884] ? show_trace_log_lvl+0x1c4/0x2df [ 770.948886] ? __cancel_work_timer+0x103/0x190 [ 770.948887] ? __flush_work.isra.0+0x212/0x230 [ 770.948889] ? __warn+0x81/0x110 [ 770.948891] ? __flush_work.isra.0+0x212/0x230 [ 770.948892] ? report_bug+0x10a/0x140 [ 770.948895] ? handle_bug+0x3c/0x70 [ 770.948898] ? exc_invalid_op+0x14/0x70 [ 770.948899] ? asm_exc_invalid_op+0x16/0x20 [ 770.948903] ? __flush_work.isra.0+0x212/0x230 [ 770.948905] __cancel_work_timer+0x103/0x190 [ 770.948907] ? _raw_spin_unlock_irqrestore+0xa/0x30 [ 770.948910] drm_kms_helper_poll_disable+0x1e/0x40 [drm_kms_helper] [ 770.948923] drm_mode_config_helper_suspend+0x1c/0x80 [drm_kms_helper] [ 770.948933] ? __pfx_vmbus_suspend+0x10/0x10 [hv_vmbus] [ 770.948942] hyperv_vmbus_suspend+0x17/0x40 [hyperv_drm] [ 770.948944] ? __pfx_vmbus_suspend+0x10/0x10 [hv_vmbus] [ 770.948951] dpm_run_callback+0x4c/0x140 [ 770.948954] __device_suspend_noir ---truncated---

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-05-29 18:18 UTC

CWE

CWE-noinfo Not enough information

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/3d1b47e3a935abd4f…
https://git.kernel.org/stable/c/18451798f4a4e7418…
https://git.kernel.org/stable/c/5abffb66d12bcac84…
https://git.kernel.org/stable/c/786c27982a39d79cc…	x_transferred
https://git.kernel.org/stable/c/4ad8d57d902fbc7c8…	x_transferred

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 78b991ccfa64a438e2d8c2997d22d55621ab277d , < 3d1b47e3a935abd4f258a945db87e7267ff4079c (git) Affected: 78b991ccfa64a438e2d8c2997d22d55621ab277d , < 18451798f4a4e7418b9fad7e7dd313fe84b1f545 (git) Affected: 78b991ccfa64a438e2d8c2997d22d55621ab277d , < 5abffb66d12bcac84bf7b66389c571b8bb6e82bd (git)
Linux	Linux	Affected: 6.3 Unaffected: 0 , < 6.3 (semver) Unaffected: 6.6.27 , ≤ 6.6.* (semver) Unaffected: 6.8.6 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-35927",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-29T18:18:22.364810Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "description": "CWE-noinfo Not enough information",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-29T19:54:14.353Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T03:21:48.874Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/786c27982a39d79cc753f84229eb5977ac8ef1c1"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/4ad8d57d902fbc7c82507cfc1b031f3a07c3de6e"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/3d1b47e3a935abd4f258a945db87e7267ff4079c"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/18451798f4a4e7418b9fad7e7dd313fe84b1f545"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/5abffb66d12bcac84bf7b66389c571b8bb6e82bd"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/drm_modeset_helper.c",
            "drivers/gpu/drm/drm_probe_helper.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3d1b47e3a935abd4f258a945db87e7267ff4079c",
              "status": "affected",
              "version": "78b991ccfa64a438e2d8c2997d22d55621ab277d",
              "versionType": "git"
            },
            {
              "lessThan": "18451798f4a4e7418b9fad7e7dd313fe84b1f545",
              "status": "affected",
              "version": "78b991ccfa64a438e2d8c2997d22d55621ab277d",
              "versionType": "git"
            },
            {
              "lessThan": "5abffb66d12bcac84bf7b66389c571b8bb6e82bd",
              "status": "affected",
              "version": "78b991ccfa64a438e2d8c2997d22d55621ab277d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/drm_modeset_helper.c",
            "drivers/gpu/drm/drm_probe_helper.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.27",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.8.*",
              "status": "unaffected",
              "version": "6.8.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.9",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.27",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.8.6",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.9",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: Check output polling initialized before disabling\n\nIn drm_kms_helper_poll_disable() check if output polling\nsupport is initialized before disabling polling. If not flag\nthis as a warning.\nAdditionally in drm_mode_config_helper_suspend() and\ndrm_mode_config_helper_resume() calls, that re the callers of these\nfunctions, avoid invoking them if polling is not initialized.\nFor drivers like hyperv-drm, that do not initialize connector\npolling, if suspend is called without this check, it leads to\nsuspend failure with following stack\n[  770.719392] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.\n[  770.720592] printk: Suspending console(s) (use no_console_suspend to debug)\n[  770.948823] ------------[ cut here ]------------\n[  770.948824] WARNING: CPU: 1 PID: 17197 at kernel/workqueue.c:3162 __flush_work.isra.0+0x212/0x230\n[  770.948831] Modules linked in: rfkill nft_counter xt_conntrack xt_owner udf nft_compat crc_itu_t nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables nfnetlink vfat fat mlx5_ib ib_uverbs ib_core mlx5_core intel_rapl_msr intel_rapl_common kvm_amd ccp mlxfw kvm psample hyperv_drm tls drm_shmem_helper drm_kms_helper irqbypass pcspkr syscopyarea sysfillrect sysimgblt hv_balloon hv_utils joydev drm fuse xfs libcrc32c pci_hyperv pci_hyperv_intf sr_mod sd_mod cdrom t10_pi sg hv_storvsc scsi_transport_fc hv_netvsc serio_raw hyperv_keyboard hid_hyperv crct10dif_pclmul crc32_pclmul crc32c_intel hv_vmbus ghash_clmulni_intel dm_mirror dm_region_hash dm_log dm_mod\n[  770.948863] CPU: 1 PID: 17197 Comm: systemd-sleep Not tainted 5.14.0-362.2.1.el9_3.x86_64 #1\n[  770.948865] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 05/09/2022\n[  770.948866] RIP: 0010:__flush_work.isra.0+0x212/0x230\n[  770.948869] Code: 8b 4d 00 4c 8b 45 08 89 ca 48 c1 e9 04 83 e2 08 83 e1 0f 83 ca 02 89 c8 48 0f ba 6d 00 03 e9 25 ff ff ff 0f 0b e9 4e ff ff ff \u003c0f\u003e 0b 45 31 ed e9 44 ff ff ff e8 8f 89 b2 00 66 66 2e 0f 1f 84 00\n[  770.948870] RSP: 0018:ffffaf4ac213fb10 EFLAGS: 00010246\n[  770.948871] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8c992857\n[  770.948872] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff9aad82b00330\n[  770.948873] RBP: ffff9aad82b00330 R08: 0000000000000000 R09: ffff9aad87ee3d10\n[  770.948874] R10: 0000000000000200 R11: 0000000000000000 R12: ffff9aad82b00330\n[  770.948874] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001\n[  770.948875] FS:  00007ff1b2f6bb40(0000) GS:ffff9aaf37d00000(0000) knlGS:0000000000000000\n[  770.948878] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  770.948878] CR2: 0000555f345cb666 CR3: 00000001462dc005 CR4: 0000000000370ee0\n[  770.948879] Call Trace:\n[  770.948880]  \u003cTASK\u003e\n[  770.948881]  ? show_trace_log_lvl+0x1c4/0x2df\n[  770.948884]  ? show_trace_log_lvl+0x1c4/0x2df\n[  770.948886]  ? __cancel_work_timer+0x103/0x190\n[  770.948887]  ? __flush_work.isra.0+0x212/0x230\n[  770.948889]  ? __warn+0x81/0x110\n[  770.948891]  ? __flush_work.isra.0+0x212/0x230\n[  770.948892]  ? report_bug+0x10a/0x140\n[  770.948895]  ? handle_bug+0x3c/0x70\n[  770.948898]  ? exc_invalid_op+0x14/0x70\n[  770.948899]  ? asm_exc_invalid_op+0x16/0x20\n[  770.948903]  ? __flush_work.isra.0+0x212/0x230\n[  770.948905]  __cancel_work_timer+0x103/0x190\n[  770.948907]  ? _raw_spin_unlock_irqrestore+0xa/0x30\n[  770.948910]  drm_kms_helper_poll_disable+0x1e/0x40 [drm_kms_helper]\n[  770.948923]  drm_mode_config_helper_suspend+0x1c/0x80 [drm_kms_helper]\n[  770.948933]  ? __pfx_vmbus_suspend+0x10/0x10 [hv_vmbus]\n[  770.948942]  hyperv_vmbus_suspend+0x17/0x40 [hyperv_drm]\n[  770.948944]  ? __pfx_vmbus_suspend+0x10/0x10 [hv_vmbus]\n[  770.948951]  dpm_run_callback+0x4c/0x140\n[  770.948954]  __device_suspend_noir\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:13:54.022Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3d1b47e3a935abd4f258a945db87e7267ff4079c"
        },
        {
          "url": "https://git.kernel.org/stable/c/18451798f4a4e7418b9fad7e7dd313fe84b1f545"
        },
        {
          "url": "https://git.kernel.org/stable/c/5abffb66d12bcac84bf7b66389c571b8bb6e82bd"
        }
      ],
      "title": "drm: Check output polling initialized before disabling",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-35927",
    "datePublished": "2024-05-19T10:10:37.069Z",
    "dateReserved": "2024-05-17T13:50:33.128Z",
    "dateUpdated": "2026-05-11T20:13:54.022Z",
    "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.

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.
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.