CWE-476

{
  "affected": [],
  "aliases": [
    "CVE-2025-38255"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-09T11:15:27Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nlib/group_cpus: fix NULL pointer dereference from group_cpus_evenly()\n\nWhile testing null_blk with configfs, echo 0 \u003e poll_queues will trigger\nfollowing panic:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000010\nOops: Oops: 0000 [#1] SMP NOPTI\nCPU: 27 UID: 0 PID: 920 Comm: bash Not tainted 6.15.0-02023-gadbdb95c8696-dirty #1238 PREEMPT(undef)\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.1-2.fc37 04/01/2014\nRIP: 0010:__bitmap_or+0x48/0x70\nCall Trace:\n \u003cTASK\u003e\n __group_cpus_evenly+0x822/0x8c0\n group_cpus_evenly+0x2d9/0x490\n blk_mq_map_queues+0x1e/0x110\n null_map_queues+0xc9/0x170 [null_blk]\n blk_mq_update_queue_map+0xdb/0x160\n blk_mq_update_nr_hw_queues+0x22b/0x560\n nullb_update_nr_hw_queues+0x71/0xf0 [null_blk]\n nullb_device_poll_queues_store+0xa4/0x130 [null_blk]\n configfs_write_iter+0x109/0x1d0\n vfs_write+0x26e/0x6f0\n ksys_write+0x79/0x180\n __x64_sys_write+0x1d/0x30\n x64_sys_call+0x45c4/0x45f0\n do_syscall_64+0xa5/0x240\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nRoot cause is that numgrps is set to 0, and ZERO_SIZE_PTR is returned from\nkcalloc(), and later ZERO_SIZE_PTR will be deferenced.\n\nFix the problem by checking numgrps first in group_cpus_evenly(), and\nreturn NULL directly if numgrps is zero.\n\n[yukuai3@huawei.com: also fix the non-SMP version]",
  "id": "GHSA-3574-q5g6-f77j",
  "modified": "2025-11-19T21:31:15Z",
  "published": "2025-07-09T12:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38255"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/29d39e0d5f16c060e32542b2cf351c09fd22b250"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/64a99eff8dcf1f951a544e6058341b2b19a8fdbd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/911ef2e8a7de5b2bae8ff11fb0bd01f699e6db65"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df831e97739405ecbaddb85516bc7d4d1c933d6b"
    }
  ],
  "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"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2022-48868"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-21T07:15:04Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Let probe fail when workqueue cannot be enabled\n\nThe workqueue is enabled when the appropriate driver is loaded and\ndisabled when the driver is removed. When the driver is removed it\nassumes that the workqueue was enabled successfully and proceeds to\nfree allocations made during workqueue enabling.\n\nFailure during workqueue enabling does not prevent the driver from\nbeing loaded. This is because the error path within drv_enable_wq()\nreturns success unless a second failure is encountered\nduring the error path. By returning success it is possible to load\nthe driver even if the workqueue cannot be enabled and\nallocations that do not exist are attempted to be freed during\ndriver remove.\n\nSome examples of problematic flows:\n(a)\n\n idxd_dmaengine_drv_probe() -\u003e drv_enable_wq() -\u003e idxd_wq_request_irq():\n In above flow, if idxd_wq_request_irq() fails then\n idxd_wq_unmap_portal() is called on error exit path, but\n drv_enable_wq() returns 0 because idxd_wq_disable() succeeds. The\n driver is thus loaded successfully.\n\n idxd_dmaengine_drv_remove()-\u003edrv_disable_wq()-\u003eidxd_wq_unmap_portal()\n Above flow on driver unload triggers the WARN in devm_iounmap() because\n the device resource has already been removed during error path of\n drv_enable_wq().\n\n(b)\n\n idxd_dmaengine_drv_probe() -\u003e drv_enable_wq() -\u003e idxd_wq_request_irq():\n In above flow, if idxd_wq_request_irq() fails then\n idxd_wq_init_percpu_ref() is never called to initialize the percpu\n counter, yet the driver loads successfully because drv_enable_wq()\n returns 0.\n\n idxd_dmaengine_drv_remove()-\u003e__idxd_wq_quiesce()-\u003epercpu_ref_kill():\n Above flow on driver unload triggers a BUG when attempting to drop the\n initial ref of the uninitialized percpu ref:\n BUG: kernel NULL pointer dereference, address: 0000000000000010\n\nFix the drv_enable_wq() error path by returning the original error that\nindicates failure of workqueue enabling. This ensures that the probe\nfails when an error is encountered and the driver remove paths are only\nattempted when the workqueue was enabled successfully.",
  "id": "GHSA-35cf-498m-vj28",
  "modified": "2024-09-04T21:30:31Z",
  "published": "2024-08-21T09:31:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48868"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0f150134dd795ffcd60b798a85ab737d8d010fb7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/99dc4520b74e7ca8e9dc9abe37a0b10b49467960"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b51b75f0604f17c0f6f3b6f68f1a521a5cc6b04f"
    }
  ],
  "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"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2020-15469"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-07-02T20:15:00Z",
    "severity": "LOW"
  },
  "details": "In QEMU 4.2.0, a MemoryRegionOps object may lack read/write callback methods, leading to a NULL pointer dereference.",
  "id": "GHSA-35fj-h53g-7cqv",
  "modified": "2022-09-06T00:00:28Z",
  "published": "2022-05-24T17:22:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-15469"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00024.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg09961.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2020/07/02/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2020-13898"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-06-10T22:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_sdp_process in sdp.c has a NULL pointer dereference.",
  "id": "GHSA-35h6-3hm3-w4f8",
  "modified": "2022-05-24T17:20:21Z",
  "published": "2022-05-24T17:20:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-13898"
    },
    {
      "type": "WEB",
      "url": "https://github.com/meetecho/janus-gateway/pull/2214"
    },
    {
      "type": "WEB",
      "url": "https://github.com/meetecho/janus-gateway/blob/v0.10.0/sdp.c#L120"
    },
    {
      "type": "WEB",
      "url": "https://github.com/meetecho/janus-gateway/blob/v0.10.0/sdp.c#L123"
    },
    {
      "type": "WEB",
      "url": "https://github.com/merrychap/CVEs/tree/master/CVE-2020-13898"
    },
    {
      "type": "WEB",
      "url": "https://github.com/merrychap/CVEs/tree/master/janus-webrtc/CVE-2020-13898"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

{
  "affected": [],
  "aliases": [
    "CVE-2025-61107"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-28T15:16:13Z",
    "severity": "HIGH"
  },
  "details": "FRRouting/frr from v4.0 through v10.4.1 was discovered to contain a NULL pointer dereference via the show_vty_ext_pref_pref_sid function at ospf_ext.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted LSA Update packet.",
  "id": "GHSA-35mh-v24c-mjw6",
  "modified": "2025-10-28T18:30:28Z",
  "published": "2025-10-28T15:30:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61107"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FRRouting/frr/issues/19471"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FRRouting/frr/pull/19480"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FRRouting/frr/pull/19480/commits/fdd957408605d4a1766225630aafc7e6b7c3daf3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/s1awwhy/BugList/blob/main/CVE-2025-61107.md"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2021-47439"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-22T07:15:09Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: microchip: Added the condition for scheduling ksz_mib_read_work\n\nWhen the ksz module is installed and removed using rmmod, kernel crashes\nwith null pointer dereferrence error. During rmmod, ksz_switch_remove\nfunction tries to cancel the mib_read_workqueue using\ncancel_delayed_work_sync routine and unregister switch from dsa.\n\nDuring dsa_unregister_switch it calls ksz_mac_link_down, which in turn\nreschedules the workqueue since mib_interval is non-zero.\nDue to which queue executed after mib_interval and it tries to access\ndp-\u003eslave. But the slave is unregistered in the ksz_switch_remove\nfunction. Hence kernel crashes.\n\nTo avoid this crash, before canceling the workqueue, resetted the\nmib_interval to 0.\n\nv1 -\u003e v2:\n-Removed the if condition in ksz_mib_read_work",
  "id": "GHSA-35q9-qwff-qmh4",
  "modified": "2024-10-31T21:31:44Z",
  "published": "2024-05-22T09:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47439"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/383239a33cf29ebee9ce0d4e0e5c900b77a16148"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ef1100ef20f29aec4e62abeccdb5bdbebba1e378"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f2e1de075018cf71bcd7d628e9f759cb8540b0c3"
    }
  ],
  "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"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2022-50364"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-17T15:15:35Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: mux: reg: check return value after calling platform_get_resource()\n\nIt will cause null-ptr-deref in resource_size(), if platform_get_resource()\nreturns NULL, move calling resource_size() after devm_ioremap_resource() that\nwill check \u0027res\u0027 to avoid null-ptr-deref.\nAnd use devm_platform_get_and_ioremap_resource() to simplify code.",
  "id": "GHSA-362x-cqj5-vh62",
  "modified": "2025-12-10T18:30:21Z",
  "published": "2025-09-17T15:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50364"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2d47b79d2bd39cc6369eccf94a06568d84c906ae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/61df25c41b8e0d2c988ccf17139f70075a2e1ba4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8212800943997fab61874550278d653cb378c60c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f5049b3ad9446203b916ee375f30fa217735f63a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f7a440c89b6d460154efeb058272760e41bdfea8"
    }
  ],
  "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"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2021-28166"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-04-07T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur.",
  "id": "GHSA-3647-h3m7-326w",
  "modified": "2022-05-24T17:46:48Z",
  "published": "2022-05-24T17:46:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-28166"
    },
    {
      "type": "WEB",
      "url": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=572608"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

{
  "affected": [],
  "aliases": [
    "CVE-2017-9470"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-06-07T05:29:00Z",
    "severity": "MODERATE"
  },
  "details": "In ytnef 1.9.2, the MAPIPrint function in lib/ytnef.c allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted file.",
  "id": "GHSA-3647-wp34-wwxg",
  "modified": "2025-04-20T03:38:33Z",
  "published": "2022-05-14T01:01:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-9470"
    },
    {
      "type": "WEB",
      "url": "https://blogs.gentoo.org/ago/2017/05/24/ytnef-null-pointer-dereference-in-mapiprint-ytnef-c"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2024-26607"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-29T12:15:47Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/bridge: sii902x: Fix probing race issue\n\nA null pointer dereference crash has been observed rarely on TI\nplatforms using sii9022 bridge:\n\n[   53.271356]  sii902x_get_edid+0x34/0x70 [sii902x]\n[   53.276066]  sii902x_bridge_get_edid+0x14/0x20 [sii902x]\n[   53.281381]  drm_bridge_get_edid+0x20/0x34 [drm]\n[   53.286305]  drm_bridge_connector_get_modes+0x8c/0xcc [drm_kms_helper]\n[   53.292955]  drm_helper_probe_single_connector_modes+0x190/0x538 [drm_kms_helper]\n[   53.300510]  drm_client_modeset_probe+0x1f0/0xbd4 [drm]\n[   53.305958]  __drm_fb_helper_initial_config_and_unlock+0x50/0x510 [drm_kms_helper]\n[   53.313611]  drm_fb_helper_initial_config+0x48/0x58 [drm_kms_helper]\n[   53.320039]  drm_fbdev_dma_client_hotplug+0x84/0xd4 [drm_dma_helper]\n[   53.326401]  drm_client_register+0x5c/0xa0 [drm]\n[   53.331216]  drm_fbdev_dma_setup+0xc8/0x13c [drm_dma_helper]\n[   53.336881]  tidss_probe+0x128/0x264 [tidss]\n[   53.341174]  platform_probe+0x68/0xc4\n[   53.344841]  really_probe+0x188/0x3c4\n[   53.348501]  __driver_probe_device+0x7c/0x16c\n[   53.352854]  driver_probe_device+0x3c/0x10c\n[   53.357033]  __device_attach_driver+0xbc/0x158\n[   53.361472]  bus_for_each_drv+0x88/0xe8\n[   53.365303]  __device_attach+0xa0/0x1b4\n[   53.369135]  device_initial_probe+0x14/0x20\n[   53.373314]  bus_probe_device+0xb0/0xb4\n[   53.377145]  deferred_probe_work_func+0xcc/0x124\n[   53.381757]  process_one_work+0x1f0/0x518\n[   53.385770]  worker_thread+0x1e8/0x3dc\n[   53.389519]  kthread+0x11c/0x120\n[   53.392750]  ret_from_fork+0x10/0x20\n\nThe issue here is as follows:\n\n- tidss probes, but is deferred as sii902x is still missing.\n- sii902x starts probing and enters sii902x_init().\n- sii902x calls drm_bridge_add(). Now the sii902x bridge is ready from\n  DRM\u0027s perspective.\n- sii902x calls sii902x_audio_codec_init() and\n  platform_device_register_data()\n- The registration of the audio platform device causes probing of the\n  deferred devices.\n- tidss probes, which eventually causes sii902x_bridge_get_edid() to be\n  called.\n- sii902x_bridge_get_edid() tries to use the i2c to read the edid.\n  However, the sii902x driver has not set up the i2c part yet, leading\n  to the crash.\n\nFix this by moving the drm_bridge_add() to the end of the\nsii902x_init(), which is also at the very end of sii902x_probe().",
  "id": "GHSA-3659-jjmv-v338",
  "modified": "2025-01-09T15:31:50Z",
  "published": "2024-02-29T12:31:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26607"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/08ac6f132dd77e40f786d8af51140c96c6d739c9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a4c6af7934a7b4c304542c38fee35e09cc1770c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/56f96cf6eb11a1c2d594367c3becbfb06a855ec1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e0f83c234ea7a3dec1f84e5d02caa1c51664a076"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}