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.

6305 vulnerabilities reference this CWE, most recent first.

GHSA-FWM3-RX8M-QMV5

Vulnerability from github – Published: 2022-05-14 01:39 – Updated: 2025-04-20 03:31
VLAI
Details

ntpd in NTP before 4.2.8p9, when the trap service is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted packet.

Severity
5.9 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2016-9311"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-01-13T16:59:00Z",
    "severity": "HIGH"
  },
  "details": "ntpd in NTP before 4.2.8p9, when the trap service is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted packet.",
  "id": "GHSA-fwm3-rx8m-qmv5",
  "modified": "2025-04-20T03:31:11Z",
  "published": "2022-05-14T01:39:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-9311"
    },
    {
      "type": "WEB",
      "url": "https://bto.bluecoat.com/security-advisory/sa139"
    },
    {
      "type": "WEB",
      "url": "https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03706en_us"
    },
    {
      "type": "WEB",
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc"
    },
    {
      "type": "WEB",
      "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbhf03799en_us"
    },
    {
      "type": "WEB",
      "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03885en_us"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3707-2"
    },
    {
      "type": "WEB",
      "url": "https://www.kb.cert.org/vuls/id/633847"
    },
    {
      "type": "WEB",
      "url": "http://nwtime.org/ntp428p9_release"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2017-0252.html"
    },
    {
      "type": "WEB",
      "url": "http://support.ntp.org/bin/view/Main/NtpBug3119"
    },
    {
      "type": "WEB",
      "url": "http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/94444"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1037354"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-FWMH-RV23-RJR3

Vulnerability from github – Published: 2025-08-22 18:31 – Updated: 2026-01-07 18:30
VLAI
Details

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

fbdev: imxfb: Check fb_add_videomode to prevent null-ptr-deref

fb_add_videomode() can fail with -ENOMEM when its internal kmalloc() cannot allocate a struct fb_modelist. If that happens, the modelist stays empty but the driver continues to register. Add a check for its return value to prevent poteintial null-ptr-deref, which is similar to the commit 17186f1f90d3 ("fbdev: Fix do_register_framebuffer to prevent null-ptr-deref in fb_videomode_to_var").

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-2025-38630"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-22T16:15:36Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: imxfb: Check fb_add_videomode to prevent null-ptr-deref\n\nfb_add_videomode() can fail with -ENOMEM when its internal kmalloc() cannot\nallocate a struct fb_modelist.  If that happens, the modelist stays empty but\nthe driver continues to register.  Add a check for its return value to prevent\npoteintial null-ptr-deref, which is similar to the commit 17186f1f90d3 (\"fbdev:\nFix do_register_framebuffer to prevent null-ptr-deref in fb_videomode_to_var\").",
  "id": "GHSA-fwmh-rv23-rjr3",
  "modified": "2026-01-07T18:30:20Z",
  "published": "2025-08-22T18:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38630"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/40f0a51f6c54d46a94b9f1180339ede7ca7ee190"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/49377bac9e3bec1635065a033c9679214fe7593e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4b5d36cc3014986e6fac12eaa8433fe56801d4ce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/69373502c2b5d364842c702c941d1171e4f35a7c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ac16154cccda8be10ee3ae188f10a06f3890bc5d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cca8f5a3991916729b39d797d01499c335137319"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da11e6a30e0bb8e911288bdc443b3dc8f6a7cac7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f00c29e6755ead56baf2a9c1d3c4c0bb40af3612"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f060441c153495750804133555cf0a211a856892"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.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-FWPW-C8X9-XMMR

Vulnerability from github – Published: 2025-02-27 21:32 – Updated: 2025-03-05 15:30
VLAI
Details

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

mailbox: th1520: Fix a NULL vs IS_ERR() bug

The devm_ioremap() function doesn't return error pointers, it returns NULL. Update the error checking to match.

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-2024-58022"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-27T20:16:02Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: th1520: Fix a NULL vs IS_ERR() bug\n\nThe devm_ioremap() function doesn\u0027t return error pointers, it returns\nNULL.  Update the error checking to match.",
  "id": "GHSA-fwpw-c8x9-xmmr",
  "modified": "2025-03-05T15:30:51Z",
  "published": "2025-02-27T21:32:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-58022"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d0f98e14c010bcf27898b635a54c1994ac4110a8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ecbde88e544ff016fa08bbf2156dc431bb123e9b"
    }
  ],
  "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-FWQR-8MV5-J4P7

Vulnerability from github – Published: 2026-05-06 12:30 – Updated: 2026-05-08 21:31
VLAI
Details

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

ring-buffer: Fix possible dereference of uninitialized pointer

There is a pointer head_page in rb_meta_validate_events() which is not initialized at the beginning of a function. This pointer can be dereferenced if there is a failure during reader page validation. In this case the control is passed to "invalid" label where the pointer is dereferenced in a loop.

To fix the issue initialize orig_head and head_page before calling rb_validate_buffer.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

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-2026-43272"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-06T12:16:48Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nring-buffer: Fix possible dereference of uninitialized pointer\n\nThere is a pointer head_page in rb_meta_validate_events() which is not\ninitialized at the beginning of a function. This pointer can be dereferenced\nif there is a failure during reader page validation. In this case the control\nis passed to \"invalid\" label where the pointer is dereferenced in a loop.\n\nTo fix the issue initialize orig_head and head_page before calling\nrb_validate_buffer.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.",
  "id": "GHSA-fwqr-8mv5-j4p7",
  "modified": "2026-05-08T21:31:21Z",
  "published": "2026-05-06T12:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43272"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc77986f3cb7476637052edf2d87137fa39f153d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d9942396845fef2369478c157b26738fe07142f6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f1547779402c4cd67755c33616b7203baa88420b"
    }
  ],
  "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-FWRX-6246-JGV9

Vulnerability from github – Published: 2022-05-14 03:15 – Updated: 2025-04-20 03:34
VLAI
Details

The jpc_tsfb_synthesize function in jpc_tsfb.c in JasPer before 1.900.9 allows remote attackers to cause a denial of service (NULL pointer dereference) via vectors involving an empty sequence.

Severity
7.5 (High)
CVSS:3.0/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-2016-10248"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-03-15T14:59:00Z",
    "severity": "HIGH"
  },
  "details": "The jpc_tsfb_synthesize function in jpc_tsfb.c in JasPer before 1.900.9 allows remote attackers to cause a denial of service (NULL pointer dereference) via vectors involving an empty sequence.",
  "id": "GHSA-fwrx-6246-jgv9",
  "modified": "2025-04-20T03:34:06Z",
  "published": "2022-05-14T03:15:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-10248"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mdadams/jasper/commit/2e82fa00466ae525339754bb3ab0a0474a31d4bd"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:1208"
    },
    {
      "type": "WEB",
      "url": "https://blogs.gentoo.org/ago/2016/10/20/jasper-null-pointer-dereference-in-jpc_tsfb_synthesize-jpc_tsfb-c"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3693-1"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/93797"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-FWVX-V57V-GVMW

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-06-25 21:31
VLAI
Details

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

scsi: csiostor: Fix dereference of null pointer rn

The error exit path when rn is NULL ends up deferencing the null pointer rn via the use of the macro CSIO_INC_STATS. Fix this by adding a new error return path label after the use of the macro to avoid the deference.

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-2026-45857"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:16:57Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: csiostor: Fix dereference of null pointer rn\n\nThe error exit path when rn is NULL ends up deferencing the null pointer rn\nvia the use of the macro CSIO_INC_STATS. Fix this by adding a new error\nreturn path label after the use of the macro to avoid the deference.",
  "id": "GHSA-fwvx-v57v-gvmw",
  "modified": "2026-06-25T21:31:18Z",
  "published": "2026-05-27T15:33:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45857"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/16ccbfddcb32365138c806cf572e69b42a193c5c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1982257570b84dc33753d536dd969fd357a014e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25ab5e97d3c5f3ed594b4a65d1cc99dc24756681"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25d623f0d77c11a256a54e860d00c239aa9a2583"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3bbbab7b6949c76df64210348adbefedaabbf549"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/44ef9f81392de885883f73b9f5c43936a82ae9d7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/526ea3c0ccd495b0079db3e28fdddd51c1bf01f7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6037124dbf675fbd0a6248aaf04cf07387b8c323"
    }
  ],
  "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-FWWC-F8HW-QFWF

Vulnerability from github – Published: 2023-09-09 15:30 – Updated: 2024-04-04 07:34
VLAI
Details

Null pointer dereference when composing from a specially crafted draft message in Mutt >1.5.2 <2.2.12

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

{
  "affected": [],
  "aliases": [
    "CVE-2023-4875"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-475",
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-09-09T15:15:35Z",
    "severity": "MODERATE"
  },
  "details": "Null pointer dereference when composing from a specially crafted draft message in Mutt \u003e1.5.2 \u003c2.2.12",
  "id": "GHSA-fwwc-f8hw-qfwf",
  "modified": "2024-04-04T07:34:31Z",
  "published": "2023-09-09T15:30:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4875"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/muttmua/mutt/-/commit/452ee330e094bfc7c9a68555e5152b1826534555.patch"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/muttmua/mutt/-/commit/4cc3128abdf52c615911589394a03271fddeefc6.patch"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00021.html"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2023/dsa-5494"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2023/09/26/6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-FX3X-J43M-J597

Vulnerability from github – Published: 2025-03-12 00:31 – Updated: 2025-03-12 00:31
VLAI
Details

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

scsi: ibmvfc: Store vhost pointer during subcrq allocation

Currently the back pointer from a queue to the vhost adapter isn't set until after subcrq interrupt registration. The value is available when a queue is first allocated and can/should be also set for primary and async queues as well as subcrqs.

This fixes a crash observed during kexec/kdump on Power 9 with legacy XICS interrupt controller where a pending subcrq interrupt from the previous kernel can be replayed immediately upon IRQ registration resulting in dereference of a garbage backpointer in ibmvfc_interrupt_scsi().

Kernel attempted to read user page (58) - exploit attempt? (uid: 0) BUG: Kernel NULL pointer dereference on read at 0x00000058 Faulting instruction address: 0xc008000003216a08 Oops: Kernel access of bad area, sig: 11 [#1] ... NIP [c008000003216a08] ibmvfc_interrupt_scsi+0x40/0xb0 [ibmvfc] LR [c0000000082079e8] __handle_irq_event_percpu+0x98/0x270 Call Trace: [c000000047fa3d80] [c0000000123e6180] 0xc0000000123e6180 (unreliable) [c000000047fa3df0] [c0000000082079e8] __handle_irq_event_percpu+0x98/0x270 [c000000047fa3ea0] [c000000008207d18] handle_irq_event+0x98/0x188 [c000000047fa3ef0] [c00000000820f564] handle_fasteoi_irq+0xc4/0x310 [c000000047fa3f40] [c000000008205c60] generic_handle_irq+0x50/0x80 [c000000047fa3f60] [c000000008015c40] __do_irq+0x70/0x1a0 [c000000047fa3f90] [c000000008016d7c] __do_IRQ+0x9c/0x130 [c000000014622f60] [0000000020000000] 0x20000000 [c000000014622ff0] [c000000008016e50] do_IRQ+0x40/0xa0 [c000000014623020] [c000000008017044] replay_soft_interrupts+0x194/0x2f0 [c000000014623210] [c0000000080172a8] arch_local_irq_restore+0x108/0x170 [c000000014623240] [c000000008eb1008] _raw_spin_unlock_irqrestore+0x58/0xb0 [c000000014623270] [c00000000820b12c] __setup_irq+0x49c/0x9f0 [c000000014623310] [c00000000820b7c0] request_threaded_irq+0x140/0x230 [c000000014623380] [c008000003212a50] ibmvfc_register_scsi_channel+0x1e8/0x2f0 [ibmvfc] [c000000014623450] [c008000003213d1c] ibmvfc_init_sub_crqs+0xc4/0x1f0 [ibmvfc] [c0000000146234d0] [c0080000032145a8] ibmvfc_reset_crq+0x150/0x210 [ibmvfc] [c000000014623550] [c0080000032147c8] ibmvfc_init_crq+0x160/0x280 [ibmvfc] [c0000000146235f0] [c00800000321a9cc] ibmvfc_probe+0x2a4/0x530 [ibmvfc]

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-2022-49703"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:45Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ibmvfc: Store vhost pointer during subcrq allocation\n\nCurrently the back pointer from a queue to the vhost adapter isn\u0027t set\nuntil after subcrq interrupt registration. The value is available when a\nqueue is first allocated and can/should be also set for primary and async\nqueues as well as subcrqs.\n\nThis fixes a crash observed during kexec/kdump on Power 9 with legacy XICS\ninterrupt controller where a pending subcrq interrupt from the previous\nkernel can be replayed immediately upon IRQ registration resulting in\ndereference of a garbage backpointer in ibmvfc_interrupt_scsi().\n\nKernel attempted to read user page (58) - exploit attempt? (uid: 0)\nBUG: Kernel NULL pointer dereference on read at 0x00000058\nFaulting instruction address: 0xc008000003216a08\nOops: Kernel access of bad area, sig: 11 [#1]\n...\nNIP [c008000003216a08] ibmvfc_interrupt_scsi+0x40/0xb0 [ibmvfc]\nLR [c0000000082079e8] __handle_irq_event_percpu+0x98/0x270\nCall Trace:\n[c000000047fa3d80] [c0000000123e6180] 0xc0000000123e6180 (unreliable)\n[c000000047fa3df0] [c0000000082079e8] __handle_irq_event_percpu+0x98/0x270\n[c000000047fa3ea0] [c000000008207d18] handle_irq_event+0x98/0x188\n[c000000047fa3ef0] [c00000000820f564] handle_fasteoi_irq+0xc4/0x310\n[c000000047fa3f40] [c000000008205c60] generic_handle_irq+0x50/0x80\n[c000000047fa3f60] [c000000008015c40] __do_irq+0x70/0x1a0\n[c000000047fa3f90] [c000000008016d7c] __do_IRQ+0x9c/0x130\n[c000000014622f60] [0000000020000000] 0x20000000\n[c000000014622ff0] [c000000008016e50] do_IRQ+0x40/0xa0\n[c000000014623020] [c000000008017044] replay_soft_interrupts+0x194/0x2f0\n[c000000014623210] [c0000000080172a8] arch_local_irq_restore+0x108/0x170\n[c000000014623240] [c000000008eb1008] _raw_spin_unlock_irqrestore+0x58/0xb0\n[c000000014623270] [c00000000820b12c] __setup_irq+0x49c/0x9f0\n[c000000014623310] [c00000000820b7c0] request_threaded_irq+0x140/0x230\n[c000000014623380] [c008000003212a50] ibmvfc_register_scsi_channel+0x1e8/0x2f0 [ibmvfc]\n[c000000014623450] [c008000003213d1c] ibmvfc_init_sub_crqs+0xc4/0x1f0 [ibmvfc]\n[c0000000146234d0] [c0080000032145a8] ibmvfc_reset_crq+0x150/0x210 [ibmvfc]\n[c000000014623550] [c0080000032147c8] ibmvfc_init_crq+0x160/0x280 [ibmvfc]\n[c0000000146235f0] [c00800000321a9cc] ibmvfc_probe+0x2a4/0x530 [ibmvfc]",
  "id": "GHSA-fx3x-j43m-j597",
  "modified": "2025-03-12T00:31:49Z",
  "published": "2025-03-12T00:31:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49703"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d38e3b614ded59da8b95377a98df969a5a5627a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8540f66196ca35b7b5e902932571c18b9fde0cd1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aeaadcde1a60138bceb65de3cdaeec78170b4459"
    }
  ],
  "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-FX57-VMGW-6JM4

Vulnerability from github – Published: 2024-10-21 21:30 – Updated: 2026-05-12 15:30
VLAI
Details

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

NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()

On the node of an NFS client, some files saved in the mountpoint of the NFS server were copied to another location of the same NFS server. Accidentally, the nfs42_complete_copies() got a NULL-pointer dereference crash with the following syslog:

[232064.838881] NFSv4: state recovery failed for open file nfs/pvc-12b5200d-cd0f-46a3-b9f0-af8f4fe0ef64.qcow2, error = -116 [232064.839360] NFSv4: state recovery failed for open file nfs/pvc-12b5200d-cd0f-46a3-b9f0-af8f4fe0ef64.qcow2, error = -116 [232066.588183] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000058 [232066.588586] Mem abort info: [232066.588701] ESR = 0x0000000096000007 [232066.588862] EC = 0x25: DABT (current EL), IL = 32 bits [232066.589084] SET = 0, FnV = 0 [232066.589216] EA = 0, S1PTW = 0 [232066.589340] FSC = 0x07: level 3 translation fault [232066.589559] Data abort info: [232066.589683] ISV = 0, ISS = 0x00000007 [232066.589842] CM = 0, WnR = 0 [232066.589967] user pgtable: 64k pages, 48-bit VAs, pgdp=00002000956ff400 [232066.590231] [0000000000000058] pgd=08001100ae100003, p4d=08001100ae100003, pud=08001100ae100003, pmd=08001100b3c00003, pte=0000000000000000 [232066.590757] Internal error: Oops: 96000007 [#1] SMP [232066.590958] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache netfs ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm vhost_net vhost vhost_iotlb tap tun ipt_rpfilter xt_multiport ip_set_hash_ip ip_set_hash_net xfrm_interface xfrm6_tunnel tunnel4 tunnel6 esp4 ah4 wireguard libcurve25519_generic veth xt_addrtype xt_set nf_conntrack_netlink ip_set_hash_ipportnet ip_set_hash_ipportip ip_set_bitmap_port ip_set_hash_ipport dummy ip_set ip_vs_sh ip_vs_wrr ip_vs_rr ip_vs iptable_filter sch_ingress nfnetlink_cttimeout vport_gre ip_gre ip_tunnel gre vport_geneve geneve vport_vxlan vxlan ip6_udp_tunnel udp_tunnel openvswitch nf_conncount dm_round_robin dm_service_time dm_multipath xt_nat xt_MASQUERADE nft_chain_nat nf_nat xt_mark xt_conntrack xt_comment nft_compat nft_counter nf_tables nfnetlink ocfs2 ocfs2_nodemanager ocfs2_stackglue iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ipmi_ssif nbd overlay 8021q garp mrp bonding tls rfkill sunrpc ext4 mbcache jbd2 [232066.591052] vfat fat cas_cache cas_disk ses enclosure scsi_transport_sas sg acpi_ipmi ipmi_si ipmi_devintf ipmi_msghandler ip_tables vfio_pci vfio_pci_core vfio_virqfd vfio_iommu_type1 vfio dm_mirror dm_region_hash dm_log dm_mod nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter bridge stp llc fuse xfs libcrc32c ast drm_vram_helper qla2xxx drm_kms_helper syscopyarea crct10dif_ce sysfillrect ghash_ce sysimgblt sha2_ce fb_sys_fops cec sha256_arm64 sha1_ce drm_ttm_helper ttm nvme_fc igb sbsa_gwdt nvme_fabrics drm nvme_core i2c_algo_bit i40e scsi_transport_fc megaraid_sas aes_neon_bs [232066.596953] CPU: 6 PID: 4124696 Comm: 10.253.166.125- Kdump: loaded Not tainted 5.15.131-9.cl9_ocfs2.aarch64 #1 [232066.597356] Hardware name: Great Wall .\x93\x8e...RF6260 V5/GWMSSE2GL1T, BIOS T656FBE_V3.0.18 2024-01-06 [232066.597721] pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [232066.598034] pc : nfs4_reclaim_open_state+0x220/0x800 [nfsv4] [232066.598327] lr : nfs4_reclaim_open_state+0x12c/0x800 [nfsv4] [232066.598595] sp : ffff8000f568fc70 [232066.598731] x29: ffff8000f568fc70 x28: 0000000000001000 x27: ffff21003db33000 [232066.599030] x26: ffff800005521ae0 x25: ffff0100f98fa3f0 x24: 0000000000000001 [232066.599319] x23: ffff800009920008 x22: ffff21003db33040 x21: ffff21003db33050 [232066.599628] x20: ffff410172fe9e40 x19: ffff410172fe9e00 x18: 0000000000000000 [232066.599914] x17: 0000000000000000 x16: 0000000000000004 x15: 0000000000000000 [232066.600195] x14: 0000000000000000 x13: ffff800008e685a8 x12: 00000000eac0c6e6 [232066.600498] x11: 00000000000000 ---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-2024-50046"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T20:15:17Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()\n\nOn the node of an NFS client, some files saved in the mountpoint of the\nNFS server were copied to another location of the same NFS server.\nAccidentally, the nfs42_complete_copies() got a NULL-pointer dereference\ncrash with the following syslog:\n\n[232064.838881] NFSv4: state recovery failed for open file nfs/pvc-12b5200d-cd0f-46a3-b9f0-af8f4fe0ef64.qcow2, error = -116\n[232064.839360] NFSv4: state recovery failed for open file nfs/pvc-12b5200d-cd0f-46a3-b9f0-af8f4fe0ef64.qcow2, error = -116\n[232066.588183] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000058\n[232066.588586] Mem abort info:\n[232066.588701]   ESR = 0x0000000096000007\n[232066.588862]   EC = 0x25: DABT (current EL), IL = 32 bits\n[232066.589084]   SET = 0, FnV = 0\n[232066.589216]   EA = 0, S1PTW = 0\n[232066.589340]   FSC = 0x07: level 3 translation fault\n[232066.589559] Data abort info:\n[232066.589683]   ISV = 0, ISS = 0x00000007\n[232066.589842]   CM = 0, WnR = 0\n[232066.589967] user pgtable: 64k pages, 48-bit VAs, pgdp=00002000956ff400\n[232066.590231] [0000000000000058] pgd=08001100ae100003, p4d=08001100ae100003, pud=08001100ae100003, pmd=08001100b3c00003, pte=0000000000000000\n[232066.590757] Internal error: Oops: 96000007 [#1] SMP\n[232066.590958] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache netfs ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm vhost_net vhost vhost_iotlb tap tun ipt_rpfilter xt_multiport ip_set_hash_ip ip_set_hash_net xfrm_interface xfrm6_tunnel tunnel4 tunnel6 esp4 ah4 wireguard libcurve25519_generic veth xt_addrtype xt_set nf_conntrack_netlink ip_set_hash_ipportnet ip_set_hash_ipportip ip_set_bitmap_port ip_set_hash_ipport dummy ip_set ip_vs_sh ip_vs_wrr ip_vs_rr ip_vs iptable_filter sch_ingress nfnetlink_cttimeout vport_gre ip_gre ip_tunnel gre vport_geneve geneve vport_vxlan vxlan ip6_udp_tunnel udp_tunnel openvswitch nf_conncount dm_round_robin dm_service_time dm_multipath xt_nat xt_MASQUERADE nft_chain_nat nf_nat xt_mark xt_conntrack xt_comment nft_compat nft_counter nf_tables nfnetlink ocfs2 ocfs2_nodemanager ocfs2_stackglue iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ipmi_ssif nbd overlay 8021q garp mrp bonding tls rfkill sunrpc ext4 mbcache jbd2\n[232066.591052]  vfat fat cas_cache cas_disk ses enclosure scsi_transport_sas sg acpi_ipmi ipmi_si ipmi_devintf ipmi_msghandler ip_tables vfio_pci vfio_pci_core vfio_virqfd vfio_iommu_type1 vfio dm_mirror dm_region_hash dm_log dm_mod nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter bridge stp llc fuse xfs libcrc32c ast drm_vram_helper qla2xxx drm_kms_helper syscopyarea crct10dif_ce sysfillrect ghash_ce sysimgblt sha2_ce fb_sys_fops cec sha256_arm64 sha1_ce drm_ttm_helper ttm nvme_fc igb sbsa_gwdt nvme_fabrics drm nvme_core i2c_algo_bit i40e scsi_transport_fc megaraid_sas aes_neon_bs\n[232066.596953] CPU: 6 PID: 4124696 Comm: 10.253.166.125- Kdump: loaded Not tainted 5.15.131-9.cl9_ocfs2.aarch64 #1\n[232066.597356] Hardware name: Great Wall .\\x93\\x8e...RF6260 V5/GWMSSE2GL1T, BIOS T656FBE_V3.0.18 2024-01-06\n[232066.597721] pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[232066.598034] pc : nfs4_reclaim_open_state+0x220/0x800 [nfsv4]\n[232066.598327] lr : nfs4_reclaim_open_state+0x12c/0x800 [nfsv4]\n[232066.598595] sp : ffff8000f568fc70\n[232066.598731] x29: ffff8000f568fc70 x28: 0000000000001000 x27: ffff21003db33000\n[232066.599030] x26: ffff800005521ae0 x25: ffff0100f98fa3f0 x24: 0000000000000001\n[232066.599319] x23: ffff800009920008 x22: ffff21003db33040 x21: ffff21003db33050\n[232066.599628] x20: ffff410172fe9e40 x19: ffff410172fe9e00 x18: 0000000000000000\n[232066.599914] x17: 0000000000000000 x16: 0000000000000004 x15: 0000000000000000\n[232066.600195] x14: 0000000000000000 x13: ffff800008e685a8 x12: 00000000eac0c6e6\n[232066.600498] x11: 00000000000000\n---truncated---",
  "id": "GHSA-fx57-vmgw-6jm4",
  "modified": "2026-05-12T15:30:39Z",
  "published": "2024-10-21T21:30:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50046"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/584c019baedddec3fd634053e8fb2d8836108d38"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/632344b9efa064ca737bfcdaaaced59fd5f18ae9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a848c29e3486189aaabd5663bc11aea50c5bd144"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ef9189bb15dcbe7ed3f3515aaa6fc8bf7483960d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f892165c564e3aab272948dbb556cc20e290c55a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fca41e5fa4914d12b2136c25f9dad69520b52683"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.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-FX73-X3P9-H2WF

Vulnerability from github – Published: 2023-05-26 18:30 – Updated: 2023-12-22 12:31
VLAI
Details

A NULL pointer dereference was found In libssh during re-keying with algorithm guessing. This issue may allow an authenticated client to cause a denial of service.

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

{
  "affected": [],
  "aliases": [
    "CVE-2023-1667"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-05-26T18:15:10Z",
    "severity": "MODERATE"
  },
  "details": "A NULL pointer dereference was found In libssh during re-keying with algorithm guessing. This issue may allow an authenticated client to cause a denial of service.",
  "id": "GHSA-fx73-x3p9-h2wf",
  "modified": "2023-12-22T12:31:44Z",
  "published": "2023-05-26T18:30:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1667"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2023-1667"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2182199"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00029.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202312-05"
    },
    {
      "type": "WEB",
      "url": "http://www.libssh.org/security/advisories/CVE-2023-1667.txt"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/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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