Common Weakness Enumeration

CWE-476

Allowed

NULL Pointer Dereference

Abstraction: Base · Status: Stable

API response cwe.mitre.org

The product dereferences a pointer that it expects to be valid but is NULL.

6322 vulnerabilities reference this CWE, most recent first.

GHSA-37V4-7665-MGQ9

Vulnerability from github – Published: 2023-03-13 18:30 – Updated: 2023-03-24 15:30
VLAI
Details

STEPTools v18SP1 ifcmesh library (v18.1) is affected due to a null pointer dereference, which could allow an attacker to deny application usage when reading a specially constructed file, resulting in an application crash.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2023-0973"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-03-13T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "STEPTools v18SP1 ifcmesh library (v18.1) is affected due to a null pointer dereference, which could allow an attacker to deny application usage when reading a specially constructed file, resulting in an application crash.",
  "id": "GHSA-37v4-7665-mgq9",
  "modified": "2023-03-24T15:30:20Z",
  "published": "2023-03-13T18:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0973"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-23-068-04"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-3875-QC7C-W94F

Vulnerability from github – Published: 2024-05-16 21:31 – Updated: 2024-05-16 21:31
VLAI
Details

NULL pointer dereference in Intel(R) Power Gadget software for Windows all versions may allow an authenticated user to potentially enable denial of service via local access.

Severity
5.0 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2023-41234"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-16T21:15:54Z",
    "severity": "MODERATE"
  },
  "details": "NULL pointer dereference in Intel(R) Power Gadget software for Windows all versions may allow an authenticated user to potentially enable denial of service via local access.",
  "id": "GHSA-3875-qc7c-w94f",
  "modified": "2024-05-16T21:31:59Z",
  "published": "2024-05-16T21:31:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-41234"
    },
    {
      "type": "WEB",
      "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01037.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-38CH-Q6JV-V6F2

Vulnerability from github – Published: 2025-04-16 06:31 – Updated: 2025-11-03 21:33
VLAI
Details

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

atm: Fix NULL pointer dereference

When MPOA_cache_impos_rcvd() receives the msg, it can trigger Null Pointer Dereference Vulnerability if both entry and holding_time are NULL. Because there is only for the situation where entry is NULL and holding_time exists, it can be passed when both entry and holding_time are NULL. If these are NULL, the entry will be passd to eg_cache_put() as parameter and it is referenced by entry->use code in it.

kasan log:

[ 3.316691] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006:I [ 3.317568] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 3.318188] CPU: 3 UID: 0 PID: 79 Comm: ex Not tainted 6.14.0-rc2 #102 [ 3.318601] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 [ 3.319298] RIP: 0010:eg_cache_remove_entry+0xa5/0x470 [ 3.319677] Code: c1 f7 6e fd 48 c7 c7 00 7e 38 b2 e8 95 64 54 fd 48 c7 c7 40 7e 38 b2 48 89 ee e80 [ 3.321220] RSP: 0018:ffff88800583f8a8 EFLAGS: 00010006 [ 3.321596] RAX: 0000000000000006 RBX: ffff888005989000 RCX: ffffffffaecc2d8e [ 3.322112] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000030 [ 3.322643] RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff6558b88 [ 3.323181] R10: 0000000000000003 R11: 203a207972746e65 R12: 1ffff11000b07f15 [ 3.323707] R13: dffffc0000000000 R14: ffff888005989000 R15: ffff888005989068 [ 3.324185] FS: 000000001b6313c0(0000) GS:ffff88806d380000(0000) knlGS:0000000000000000 [ 3.325042] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.325545] CR2: 00000000004b4b40 CR3: 000000000248e000 CR4: 00000000000006f0 [ 3.326430] Call Trace: [ 3.326725] [ 3.326927] ? die_addr+0x3c/0xa0 [ 3.327330] ? exc_general_protection+0x161/0x2a0 [ 3.327662] ? asm_exc_general_protection+0x26/0x30 [ 3.328214] ? vprintk_emit+0x15e/0x420 [ 3.328543] ? eg_cache_remove_entry+0xa5/0x470 [ 3.328910] ? eg_cache_remove_entry+0x9a/0x470 [ 3.329294] ? __pfx_eg_cache_remove_entry+0x10/0x10 [ 3.329664] ? console_unlock+0x107/0x1d0 [ 3.329946] ? __pfx_console_unlock+0x10/0x10 [ 3.330283] ? do_syscall_64+0xa6/0x1a0 [ 3.330584] ? entry_SYSCALL_64_after_hwframe+0x47/0x7f [ 3.331090] ? __pfx_prb_read_valid+0x10/0x10 [ 3.331395] ? down_trylock+0x52/0x80 [ 3.331703] ? vprintk_emit+0x15e/0x420 [ 3.331986] ? __pfx_vprintk_emit+0x10/0x10 [ 3.332279] ? down_trylock+0x52/0x80 [ 3.332527] ? _printk+0xbf/0x100 [ 3.332762] ? __pfx__printk+0x10/0x10 [ 3.333007] ? _raw_write_lock_irq+0x81/0xe0 [ 3.333284] ? __pfx__raw_write_lock_irq+0x10/0x10 [ 3.333614] msg_from_mpoad+0x1185/0x2750 [ 3.333893] ? __build_skb_around+0x27b/0x3a0 [ 3.334183] ? __pfx_msg_from_mpoad+0x10/0x10 [ 3.334501] ? __alloc_skb+0x1c0/0x310 [ 3.334809] ? __pfxallocskb+0x10/0x10 [ 3.335283] ? _raw_spin_lock+0xe0/0xe0 [ 3.335632] ? finish_wait+0x8d/0x1e0 [ 3.335975] vcc_sendmsg+0x684/0xba0 [ 3.336250] ? pfx_vcc_sendmsg+0x10/0x10 [ 3.336587] ? __pfx_autoremove_wake_function+0x10/0x10 [ 3.337056] ? fdget+0x176/0x3e0 [ 3.337348] __sys_sendto+0x4a2/0x510 [ 3.337663] ? __pfxsyssendto+0x10/0x10 [ 3.337969] ? ioctl_has_perm.constprop.0.isra.0+0x284/0x400 [ 3.338364] ? sock_ioctl+0x1bb/0x5a0 [ 3.338653] ? rseq_handle_notify_resume+0x825/0xd20 [ 3.339017] ? __pfx_sock_ioctl+0x10/0x10 [ 3.339316] ? __pfxrseqhandle_notify_resume+0x10/0x10 [ 3.339727] ? selinux_file_ioctl+0xa4/0x260 [ 3.340166] x64_sys_sendto+0xe0/0x1c0 [ 3.340526] ? syscall_exit_to_user_mode+0x123/0x140 [ 3.340898] do_syscall_64+0xa6/0x1a0 [ 3.341170] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 3.341533] RIP: 0033:0x44a380 [ 3.341757] Code: 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c00 [
---truncated---

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-22018"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-16T05:15:31Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\natm: Fix NULL pointer dereference\n\nWhen MPOA_cache_impos_rcvd() receives the msg, it can trigger\nNull Pointer Dereference Vulnerability if both entry and\nholding_time are NULL. Because there is only for the situation\nwhere entry is NULL and holding_time exists, it can be passed\nwhen both entry and holding_time are NULL. If these are NULL,\nthe entry will be passd to eg_cache_put() as parameter and\nit is referenced by entry-\u003euse code in it.\n\nkasan log:\n\n[    3.316691] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006:I\n[    3.317568] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]\n[    3.318188] CPU: 3 UID: 0 PID: 79 Comm: ex Not tainted 6.14.0-rc2 #102\n[    3.318601] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\n[    3.319298] RIP: 0010:eg_cache_remove_entry+0xa5/0x470\n[    3.319677] Code: c1 f7 6e fd 48 c7 c7 00 7e 38 b2 e8 95 64 54 fd 48 c7 c7 40 7e 38 b2 48 89 ee e80\n[    3.321220] RSP: 0018:ffff88800583f8a8 EFLAGS: 00010006\n[    3.321596] RAX: 0000000000000006 RBX: ffff888005989000 RCX: ffffffffaecc2d8e\n[    3.322112] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000030\n[    3.322643] RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff6558b88\n[    3.323181] R10: 0000000000000003 R11: 203a207972746e65 R12: 1ffff11000b07f15\n[    3.323707] R13: dffffc0000000000 R14: ffff888005989000 R15: ffff888005989068\n[    3.324185] FS:  000000001b6313c0(0000) GS:ffff88806d380000(0000) knlGS:0000000000000000\n[    3.325042] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[    3.325545] CR2: 00000000004b4b40 CR3: 000000000248e000 CR4: 00000000000006f0\n[    3.326430] Call Trace:\n[    3.326725]  \u003cTASK\u003e\n[    3.326927]  ? die_addr+0x3c/0xa0\n[    3.327330]  ? exc_general_protection+0x161/0x2a0\n[    3.327662]  ? asm_exc_general_protection+0x26/0x30\n[    3.328214]  ? vprintk_emit+0x15e/0x420\n[    3.328543]  ? eg_cache_remove_entry+0xa5/0x470\n[    3.328910]  ? eg_cache_remove_entry+0x9a/0x470\n[    3.329294]  ? __pfx_eg_cache_remove_entry+0x10/0x10\n[    3.329664]  ? console_unlock+0x107/0x1d0\n[    3.329946]  ? __pfx_console_unlock+0x10/0x10\n[    3.330283]  ? do_syscall_64+0xa6/0x1a0\n[    3.330584]  ? entry_SYSCALL_64_after_hwframe+0x47/0x7f\n[    3.331090]  ? __pfx_prb_read_valid+0x10/0x10\n[    3.331395]  ? down_trylock+0x52/0x80\n[    3.331703]  ? vprintk_emit+0x15e/0x420\n[    3.331986]  ? __pfx_vprintk_emit+0x10/0x10\n[    3.332279]  ? down_trylock+0x52/0x80\n[    3.332527]  ? _printk+0xbf/0x100\n[    3.332762]  ? __pfx__printk+0x10/0x10\n[    3.333007]  ? _raw_write_lock_irq+0x81/0xe0\n[    3.333284]  ? __pfx__raw_write_lock_irq+0x10/0x10\n[    3.333614]  msg_from_mpoad+0x1185/0x2750\n[    3.333893]  ? __build_skb_around+0x27b/0x3a0\n[    3.334183]  ? __pfx_msg_from_mpoad+0x10/0x10\n[    3.334501]  ? __alloc_skb+0x1c0/0x310\n[    3.334809]  ? __pfx___alloc_skb+0x10/0x10\n[    3.335283]  ? _raw_spin_lock+0xe0/0xe0\n[    3.335632]  ? finish_wait+0x8d/0x1e0\n[    3.335975]  vcc_sendmsg+0x684/0xba0\n[    3.336250]  ? __pfx_vcc_sendmsg+0x10/0x10\n[    3.336587]  ? __pfx_autoremove_wake_function+0x10/0x10\n[    3.337056]  ? fdget+0x176/0x3e0\n[    3.337348]  __sys_sendto+0x4a2/0x510\n[    3.337663]  ? __pfx___sys_sendto+0x10/0x10\n[    3.337969]  ? ioctl_has_perm.constprop.0.isra.0+0x284/0x400\n[    3.338364]  ? sock_ioctl+0x1bb/0x5a0\n[    3.338653]  ? __rseq_handle_notify_resume+0x825/0xd20\n[    3.339017]  ? __pfx_sock_ioctl+0x10/0x10\n[    3.339316]  ? __pfx___rseq_handle_notify_resume+0x10/0x10\n[    3.339727]  ? selinux_file_ioctl+0xa4/0x260\n[    3.340166]  __x64_sys_sendto+0xe0/0x1c0\n[    3.340526]  ? syscall_exit_to_user_mode+0x123/0x140\n[    3.340898]  do_syscall_64+0xa6/0x1a0\n[    3.341170]  entry_SYSCALL_64_after_hwframe+0x77/0x7f\n[    3.341533] RIP: 0033:0x44a380\n[    3.341757] Code: 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c00\n[    \n---truncated---",
  "id": "GHSA-38ch-q6jv-v6f2",
  "modified": "2025-11-03T21:33:34Z",
  "published": "2025-04-16T06:31:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22018"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09691f367df44fe93255274d80a439f9bb3263fc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0ef6e49881b6b50ac454cb9d6501d009fdceb6fc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/14c7aca5ba2740973de27c1bb8df77b4dcb6f775"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1505f9b720656b17865e4166ab002960162bf679"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3c23bb2c894e9ef2727682f98c341b20f78c9013"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9da6b6340dbcf0f60ae3ec6a7d6438337c32518a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab92f51c7f53a08f1a686bfb80690ebb3672357d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bf2986fcf82a449441f9ee4335df19be19e83970"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d7f1e4a53a51cc6ba833afcb40439f18dab61c1f"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
    }
  ],
  "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"
    }
  ]
}

GHSA-38G5-822J-7RR9

Vulnerability from github – Published: 2026-01-02 15:30 – Updated: 2026-01-05 21:30
VLAI
Details

A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack.

We have already fixed the vulnerability in the following versions: QTS 5.2.7.3256 build 20250913 and later QuTS hero h5.2.7.3256 build 20250913 and later QuTS hero h5.3.1.3250 build 20250912 and later

Severity
4.9 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
1.2 (Low)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-53414"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-02T15:16:01Z",
    "severity": "LOW"
  },
  "details": "A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.7.3256 build 20250913 and later\nQuTS hero h5.2.7.3256 build 20250913 and later\nQuTS hero h5.3.1.3250 build 20250912 and later",
  "id": "GHSA-38g5-822j-7rr9",
  "modified": "2026-01-05T21:30:30Z",
  "published": "2026-01-02T15:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53414"
    },
    {
      "type": "WEB",
      "url": "https://www.qnap.com/en/security-advisory/qsa-25-50"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-38GV-CWR5-WHGG

Vulnerability from github – Published: 2022-05-14 00:54 – Updated: 2022-05-14 00:54
VLAI
Details

An issue was discovered in Exiv2 v0.26. The function Exiv2::DataValue::copy in value.cpp has a NULL pointer dereference.

Severity
6.5 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2018-17282"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-09-20T20:29:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in Exiv2 v0.26. The function Exiv2::DataValue::copy in value.cpp has a NULL pointer dereference.",
  "id": "GHSA-38gv-cwr5-whgg",
  "modified": "2022-05-14T00:54:46Z",
  "published": "2022-05-14T00:54:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-17282"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Exiv2/exiv2/issues/457"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:2101"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00009.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-38H5-PJW3-MQXF

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-06-16 03:30
VLAI
Details

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

ASoC: nau8821: Cancel delayed work on component remove

Attempting to unload the driver while a jack detection work is pending would likely crash the kernel when it is eventually scheduled for execution:

[ 1984.896308] BUG: unable to handle page fault for address: ffffffffc10c2a20 [...] [ 1984.896388] Hardware name: Valve Jupiter/Jupiter, BIOS F7A0131 01/30/2024 [ 1984.896396] Workqueue: events nau8821_jdet_work [snd_soc_nau8821] [ 1984.896414] RIP: 0010:__mutex_lock+0x9f/0x11d0 [...] [ 1984.896504] Call Trace: [ 1984.896511] [ 1984.896524] ? snd_soc_dapm_disable_pin+0x26/0x60 [snd_soc_core] [ 1984.896572] ? snd_soc_dapm_disable_pin+0x26/0x60 [snd_soc_core] [ 1984.896596] snd_soc_dapm_disable_pin+0x26/0x60 [snd_soc_core] [ 1984.896622] nau8821_jdet_work+0xeb/0x1e0 [snd_soc_nau8821] [ 1984.896636] process_one_work+0x211/0x590 [ 1984.896649] ? srso_return_thunk+0x5/0x5f [ 1984.896670] worker_thread+0x1cd/0x3a0

Cancel unscheduled jdet_work or wait for its execution to finish before the component driver gets removed.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-45963"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:13Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: nau8821: Cancel delayed work on component remove\n\nAttempting to unload the driver while a jack detection work is pending\nwould likely crash the kernel when it is eventually scheduled for\nexecution:\n\n[ 1984.896308] BUG: unable to handle page fault for address: ffffffffc10c2a20\n[...]\n[ 1984.896388] Hardware name: Valve Jupiter/Jupiter, BIOS F7A0131 01/30/2024\n[ 1984.896396] Workqueue: events nau8821_jdet_work [snd_soc_nau8821]\n[ 1984.896414] RIP: 0010:__mutex_lock+0x9f/0x11d0\n[...]\n[ 1984.896504] Call Trace:\n[ 1984.896511]  \u003cTASK\u003e\n[ 1984.896524]  ? snd_soc_dapm_disable_pin+0x26/0x60 [snd_soc_core]\n[ 1984.896572]  ? snd_soc_dapm_disable_pin+0x26/0x60 [snd_soc_core]\n[ 1984.896596]  snd_soc_dapm_disable_pin+0x26/0x60 [snd_soc_core]\n[ 1984.896622]  nau8821_jdet_work+0xeb/0x1e0 [snd_soc_nau8821]\n[ 1984.896636]  process_one_work+0x211/0x590\n[ 1984.896649]  ? srso_return_thunk+0x5/0x5f\n[ 1984.896670]  worker_thread+0x1cd/0x3a0\n\nCancel unscheduled jdet_work or wait for its execution to finish before\nthe component driver gets removed.",
  "id": "GHSA-38h5-pjw3-mqxf",
  "modified": "2026-06-16T03:30:33Z",
  "published": "2026-05-27T15:33:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45963"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3955767ec39dcc0358470ffe6535703e2b7fd815"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dbd3fd05cddfdeec1e49b0a66269881c09eebd17"
    }
  ],
  "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"
    }
  ]
}

GHSA-38RG-2RJC-3RMJ

Vulnerability from github – Published: 2026-06-25 09:31 – Updated: 2026-07-06 18:30
VLAI
Details

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

mmc: dw_mmc-rockchip: Add missing private data for very old controllers

The really old controllers (rk2928, rk3066, rk3188) do not support UHS speeds at all, and thus never handled phase data.

For that reason it never had a parse_dt callback and no driver private data at all.

Commit ff6f0286c896 ("mmc: dw_mmc-rockchip: Add memory clock auto-gating support") makes the private data sort of mandatory, because the init function checks whether phases are configured internally or through the clock controller.

This results in the old SoCs then experiencing NULL-pointer dereferences when they try to access that private-data struct.

While we could have if (priv) conditionals in all places, it's way less cluttery to just give the old types their private-data struct.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-53152"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-25T09:16:32Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: dw_mmc-rockchip: Add missing private data for very old controllers\n\nThe really old controllers (rk2928, rk3066, rk3188) do not support UHS\nspeeds at all, and thus never handled phase data.\n\nFor that reason it never had a parse_dt callback and no driver private\ndata at all.\n\nCommit ff6f0286c896 (\"mmc: dw_mmc-rockchip: Add memory clock auto-gating\nsupport\") makes the private data sort of mandatory, because the init\nfunction checks whether phases are configured internally or through the\nclock controller.\n\nThis results in the old SoCs then experiencing NULL-pointer dereferences\nwhen they try to access that private-data struct.\n\nWhile we could have if (priv) conditionals in all places, it\u0027s way less\ncluttery to just give the old types their private-data struct.",
  "id": "GHSA-38rg-2rjc-3rmj",
  "modified": "2026-07-06T18:30:36Z",
  "published": "2026-06-25T09:31:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53152"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1e9a4850afa0ceb63984fb1a9f3e86d0fc4fd18f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f8007be13e6cc1e0a508fe461f9a91ba9a28b8c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8d9eca906e76d3dd40e5f2c79701f066678f2e62"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b1180ff50cca48807893ecde7d1f81d573c88c85"
    }
  ],
  "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"
    }
  ]
}

GHSA-393V-JRVH-G25V

Vulnerability from github – Published: 2022-08-04 00:00 – Updated: 2022-08-09 00:00
VLAI
Details

PingCAP TiDB v6.1.0 was discovered to contain a NULL pointer dereference.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-34969"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-08-03T02:15:00Z",
    "severity": "HIGH"
  },
  "details": "PingCAP TiDB v6.1.0 was discovered to contain a NULL pointer dereference.",
  "id": "GHSA-393v-jrvh-g25v",
  "modified": "2022-08-09T00:00:22Z",
  "published": "2022-08-04T00:00:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-34969"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pingcap/tidb/issues/35310"
    }
  ],
  "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"
    }
  ]
}

GHSA-3958-X3R2-XC87

Vulnerability from github – Published: 2022-05-14 02:03 – Updated: 2022-05-14 02:03
VLAI
Details

An issue was discovered in Xen 4.8.x through 4.10.x allowing x86 PVH guest OS users to cause a denial of service (NULL pointer dereference and hypervisor crash) by leveraging the mishandling of configurations that lack a Local APIC.

Severity
6.5 (Medium)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2018-7542"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-02-27T19:29:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in Xen 4.8.x through 4.10.x allowing x86 PVH guest OS users to cause a denial of service (NULL pointer dereference and hypervisor crash) by leveraging the mishandling of configurations that lack a Local APIC.",
  "id": "GHSA-3958-x3r2-xc87",
  "modified": "2022-05-14T02:03:05Z",
  "published": "2022-05-14T02:03:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-7542"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201810-06"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2018/dsa-4131"
    },
    {
      "type": "WEB",
      "url": "https://xenbits.xen.org/xsa/advisory-256.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1040776"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-3969-JVQ7-CJF4

Vulnerability from github – Published: 2026-03-25 12:30 – Updated: 2026-05-22 03:30
VLAI
Details

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

wifi: mac80211: fix NULL pointer dereference in mesh_rx_csa_frame()

In mesh_rx_csa_frame(), elems->mesh_chansw_params_ie is dereferenced at lines 1638 and 1642 without a prior NULL check:

ifmsh->chsw_ttl = elems->mesh_chansw_params_ie->mesh_ttl;
...
pre_value = le16_to_cpu(elems->mesh_chansw_params_ie->mesh_pre_value);

The mesh_matches_local() check above only validates the Mesh ID, Mesh Configuration, and Supported Rates IEs. It does not verify the presence of the Mesh Channel Switch Parameters IE (element ID 118). When a received CSA action frame omits that IE, ieee802_11_parse_elems() leaves elems->mesh_chansw_params_ie as NULL, and the unconditional dereference causes a kernel NULL pointer dereference.

A remote mesh peer with an established peer link (PLINK_ESTAB) can trigger this by sending a crafted SPECTRUM_MGMT/CHL_SWITCH action frame that includes a matching Mesh ID and Mesh Configuration IE but omits the Mesh Channel Switch Parameters IE. No authentication beyond the default open mesh peering is required.

Crash confirmed on kernel 6.17.0-5-generic via mac80211_hwsim:

BUG: kernel NULL pointer dereference, address: 0000000000000000 Oops: Oops: 0000 [#1] SMP NOPTI RIP: 0010:ieee80211_mesh_rx_queued_mgmt+0x143/0x2a0 [mac80211] CR2: 0000000000000000

Fix by adding a NULL check for mesh_chansw_params_ie after mesh_matches_local() returns, consistent with how other optional IEs are guarded throughout the mesh code.

The bug has been present since v3.13 (released 2014-01-19).

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-23279"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-25T11:16:22Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: fix NULL pointer dereference in mesh_rx_csa_frame()\n\nIn mesh_rx_csa_frame(), elems-\u003emesh_chansw_params_ie is dereferenced\nat lines 1638 and 1642 without a prior NULL check:\n\n    ifmsh-\u003echsw_ttl = elems-\u003emesh_chansw_params_ie-\u003emesh_ttl;\n    ...\n    pre_value = le16_to_cpu(elems-\u003emesh_chansw_params_ie-\u003emesh_pre_value);\n\nThe mesh_matches_local() check above only validates the Mesh ID,\nMesh Configuration, and Supported Rates IEs.  It does not verify the\npresence of the Mesh Channel Switch Parameters IE (element ID 118).\nWhen a received CSA action frame omits that IE, ieee802_11_parse_elems()\nleaves elems-\u003emesh_chansw_params_ie as NULL, and the unconditional\ndereference causes a kernel NULL pointer dereference.\n\nA remote mesh peer with an established peer link (PLINK_ESTAB) can\ntrigger this by sending a crafted SPECTRUM_MGMT/CHL_SWITCH action frame\nthat includes a matching Mesh ID and Mesh Configuration IE but omits the\nMesh Channel Switch Parameters IE.  No authentication beyond the default\nopen mesh peering is required.\n\nCrash confirmed on kernel 6.17.0-5-generic via mac80211_hwsim:\n\n  BUG: kernel NULL pointer dereference, address: 0000000000000000\n  Oops: Oops: 0000 [#1] SMP NOPTI\n  RIP: 0010:ieee80211_mesh_rx_queued_mgmt+0x143/0x2a0 [mac80211]\n  CR2: 0000000000000000\n\nFix by adding a NULL check for mesh_chansw_params_ie after\nmesh_matches_local() returns, consistent with how other optional IEs\nare guarded throughout the mesh code.\n\nThe bug has been present since v3.13 (released 2014-01-19).",
  "id": "GHSA-3969-jvq7-cjf4",
  "modified": "2026-05-22T03:30:25Z",
  "published": "2026-03-25T12:30:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23279"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/017c1792525064a723971f0216e6ef86a8c7af11"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/22a9adea7e26d236406edc0ea00b54351dd56b9c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2b5f282b1b7241ef624c3399a1cdff0bb1a3eeab"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/753ad20dcbe36b67088c7770d8fc357d7cc43e08"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/be8b82c567fda86f2cbb43b7208825125bb31421"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cc6d5a3c0a854aeae00915fc5386570c86029c60"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f061336f072ab03fd29270ae61fede46bf8fd69d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f5d8af683410a8c82e48b51291915bd612523d9a"
    }
  ],
  "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"
    }
  ]
}
Mitigation MIT-56
Implementation

For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].

Mitigation
Requirements

Select a programming language that is not susceptible to these issues.

Mitigation
Implementation

Check the results of all functions that return a value and verify that the value is non-null before acting upon it.

Mitigation
Architecture and Design

Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.

Mitigation
Implementation

Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.

No CAPEC attack patterns related to this CWE.

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