CWE-476

{
  "affected": [],
  "aliases": [
    "CVE-2024-38574"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-19T14:15:17Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibbpf: Prevent null-pointer dereference when prog to load has no BTF\n\nIn bpf_objec_load_prog(), there\u0027s no guarantee that obj-\u003ebtf is non-NULL\nwhen passing it to btf__fd(), and this function does not perform any\ncheck before dereferencing its argument (as bpf_object__btf_fd() used to\ndo). As a consequence, we get segmentation fault errors in bpftool (for\nexample) when trying to load programs that come without BTF information.\n\nv2: Keep btf__fd() in the fix instead of reverting to bpf_object__btf_fd().",
  "id": "GHSA-cv67-23pp-jfh2",
  "modified": "2025-01-31T15:30:42Z",
  "published": "2024-06-19T15:30:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38574"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1fd91360a75833b7110af9834ae26c977e1273e0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9bf48fa19a4b1d186e08b20bf7e5de26a15644fb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ef80b59acfa4dee4b5eaccb15572b69248831104"
    }
  ],
  "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-2024-46856"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-27T13:15:17Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: phy: dp83822: Fix NULL pointer dereference on DP83825 devices\n\nThe probe() function is only used for DP83822 and DP83826 PHY,\nleaving the private data pointer uninitialized for the DP83825 models\nwhich causes a NULL pointer dereference in the recently introduced/changed\nfunctions dp8382x_config_init() and dp83822_set_wol().\n\nAdd the dp8382x_probe() function, so all PHY models will have a valid\nprivate data pointer to fix this issue and also prevent similar issues\nin the future.",
  "id": "GHSA-cv8x-m68j-4834",
  "modified": "2024-10-01T18:31:17Z",
  "published": "2024-09-27T15:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-46856"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3f62ea572b3e8e3f10c39a9cb4f04ca9ae5f2952"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/67b61e2f4c9c5df97a9a2ef7a1fe35eae00531f4"
    }
  ],
  "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-2025-38725"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-04T16:15:42Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: asix_devices: add phy_mask for ax88772 mdio bus\n\nWithout setting phy_mask for ax88772 mdio bus, current driver may create\nat most 32 mdio phy devices with phy address range from 0x00 ~ 0x1f.\nDLink DUB-E100 H/W Ver B1 is such a device. However, only one main phy\ndevice will bind to net phy driver. This is creating issue during system\nsuspend/resume since phy_polling_mode() in phy_state_machine() will\ndirectly deference member of phydev-\u003edrv for non-main phy devices. Then\nNULL pointer dereference issue will occur. Due to only external phy or\ninternal phy is necessary, add phy_mask for ax88772 mdio bus to workarnoud\nthe issue.",
  "id": "GHSA-cvch-2h28-pxmh",
  "modified": "2026-07-14T15:31:27Z",
  "published": "2025-09-05T18:31:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38725"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4faff70959d51078f9ee8372f8cff0d7045e4114"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/59ed6fbdb1bc03316e09493ffde7066f031c7524"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75947d3200de98a9ded9ad8972e02f1a177097fe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a754ab53993b1585132e871c5d811167ad3c52ff"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ad1f8313aeec0115f9978bd2d002ef4a8d96c773"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ccef5ee4adf56472aa26bdd1f821a6d0cd06089a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ee2cd40b0bb46056949a2319084a729d95389386"
    },
    {
      "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"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2022-0286"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-01-31T16:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A flaw was found in the Linux kernel. A null pointer dereference in bond_ipsec_add_sa() may lead to local denial of service.",
  "id": "GHSA-cvfm-v88g-pg7v",
  "modified": "2022-07-26T00:00:36Z",
  "published": "2022-02-01T00:00:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0286"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=105cd17a866017b45f3c45901b394c711c97bf40"
    },
    {
      "type": "WEB",
      "url": "https://syzkaller.appspot.com/bug?id=160f641886d88bf11cbf1236cc4db994bb210626"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujul2022.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"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2018-0049"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-10-10T18:29:00Z",
    "severity": "HIGH"
  },
  "details": "A NULL Pointer Dereference vulnerability in Juniper Networks Junos OS allows an attacker to cause the Junos OS kernel to crash. Continued receipt of this specifically crafted malicious MPLS packet will cause a sustained Denial of Service condition. This issue require it to be received on an interface configured to receive this type of traffic. Affected releases are Juniper Networks Junos OS: 12.1X46 versions above and including 12.1X46-D76 prior to 12.1X46-D81 on SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 12.3R12-S10; 12.3X48 versions above and including 12.3X48-D66 prior to 12.3X48-D75 on SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 14.1X53-D47 on EX2200/VC, EX3200, EX3300/VC, EX4200, EX4300, EX4550/VC, EX4600, EX6200, EX8200/VC (XRE), QFX3500, QFX3600, QFX5100; 14.1X53 versions above and including 14.1X53-D115 prior to 14.1X53-D130 on QFabric System; 15.1 versions above and including 15.1F6-S10; 15.1R4-S9; 15.1R6-S6; 15.1 versions above and including 15.1R7 prior to 15.1R7-S2; 15.1X49 versions above and including 15.1X49-D131 prior to 15.1X49-D150 on SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 15.1X53 versions above 15.1X53-D233 prior to 15.1X53-D235 on QFX5200/QFX5110; 15.1X53 versions up to and including 15.1X53-D471 prior to 15.1X53-D590 on NFX150, NFX250; 15.1X53-D67 on QFX10000 Series; 15.1X53-D59 on EX2300/EX3400; 16.1 versions above and including 16.1R3-S8; 16.1 versions above and including 16.1R4-S9 prior to 16.1R4-S12; 16.1 versions above and including 16.1R5-S4; 16.1 versions above and including 16.1R6-S3 prior to 16.1R6-S6; 16.1 versions above and including 16.1R7 prior to 16.1R7-S2; 16.2 versions above and including 16.2R1-S6; 16.2 versions above and including 16.2R2-S5 prior to 16.2R2-S7; 17.1R1-S7; 17.1 versions above and including 17.1R2-S7 prior to 17.1R2-S9; 17.2R1-S6; 17.2 versions above and including 17.2R2-S4 prior to 17.2R2-S6; 17.2X75 versions above and including 17.2X75-D100 prior to X17.2X75-D101, 17.2X75-D110; 17.3 versions above and including 17.3R1-S4 on All non-SRX Series and SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 17.3 versions above and including 17.3R2-S2 prior to 17.3R2-S4 on All non-SRX Series and SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 17.3R3 on All non-SRX Series and SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 17.4 versions above and including 17.4R1-S3 prior to 17.4R1-S5 on All non-SRX Series and SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 17.4R2 on All non-SRX Series and SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 18.1 versions above and including 18.1R2 prior to 18.1R2-S3, 18.1R3 on All non-SRX Series and SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 18.2 versions above and including 18.2R1 prior to 18.2R1-S2, 18.2R1-S3, 18.2R2 on All non-SRX Series and SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 18.2X75 versions above and including 18.2X75-D5 prior to 18.2X75-D20.",
  "id": "GHSA-cvg4-hp78-jhgv",
  "modified": "2022-05-13T00:00:44Z",
  "published": "2022-05-13T00:00:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-0049"
    },
    {
      "type": "WEB",
      "url": "https://kb.juniper.net/JSA10883"
    },
    {
      "type": "WEB",
      "url": "https://kb.juniper.net/KB30092"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/105701"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1041850"
    }
  ],
  "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-2022-49616"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:37Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: rt7*-sdw: harden jack_detect_handler\n\nRealtek headset codec drivers typically check if the card is\ninstantiated before proceeding with the jack detection.\n\nThe rt700, rt711 and rt711-sdca are however missing a check on the\ncard pointer, which can lead to NULL dereferences encountered in\ndriver bind/unbind tests.",
  "id": "GHSA-cvgm-m469-rvv5",
  "modified": "2025-10-23T12:31:16Z",
  "published": "2025-10-23T12:31:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49616"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0484271ab0ce50649329fa9dc23c50853c5b26a4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/07a606e1389a63b61cb8cd591026f30529117573"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d75b73ec6d6b705cca528b36d8315e43e8d7fa5"
    }
  ],
  "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-2015-7977"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-01-30T21:59:00Z",
    "severity": "MODERATE"
  },
  "details": "ntpd in NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (NULL pointer dereference) via a ntpdc reslist command.",
  "id": "GHSA-cvp4-369g-vpfx",
  "modified": "2025-04-20T03:32:02Z",
  "published": "2022-05-13T01:04:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-7977"
    },
    {
      "type": "WEB",
      "url": "https://bto.bluecoat.com/security-advisory/sa113"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf"
    },
    {
      "type": "WEB",
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201607-15"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20171031-0001"
    },
    {
      "type": "WEB",
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11"
    },
    {
      "type": "WEB",
      "url": "https://www.kb.cert.org/vuls/id/718152"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177507.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176434.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2016-0780.html"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2016-2583.html"
    },
    {
      "type": "WEB",
      "url": "http://support.ntp.org/bin/view/Main/NtpBug2939"
    },
    {
      "type": "WEB",
      "url": "http://support.ntp.org/bin/view/Main/SecurityNotice#April_2016_NTP_4_2_8p7_Security"
    },
    {
      "type": "WEB",
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpd"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2016/dsa-3629"
    },
    {
      "type": "WEB",
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/81815"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1034782"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-3096-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2018-1065"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-03-02T08:29:00Z",
    "severity": "MODERATE"
  },
  "details": "The netfilter subsystem in the Linux kernel through 4.15.7 mishandles the case of a rule blob that contains a jump but lacks a user-defined chain, which allows local users to cause a denial of service (NULL pointer dereference) by leveraging the CAP_NET_RAW or CAP_NET_ADMIN capability, related to arpt_do_table in net/ipv4/netfilter/arp_tables.c, ipt_do_table in net/ipv4/netfilter/ip_tables.c, and ip6t_do_table in net/ipv6/netfilter/ip6_tables.c.",
  "id": "GHSA-cvp9-xf77-46mc",
  "modified": "2022-05-14T02:03:24Z",
  "published": "2022-05-14T02:03:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-1065"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/57ebd808a97d7c5b1e1afb937c2db22beba3c1f8"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:2948"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2018-1065"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1547824"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3654-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3654-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3656-1"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2018/dsa-4188"
    },
    {
      "type": "WEB",
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=57ebd808a97d7c5b1e1afb937c2db22beba3c1f8"
    },
    {
      "type": "WEB",
      "url": "http://lists.openwall.net/netdev/2018/01/27/46"
    },
    {
      "type": "WEB",
      "url": "http://patchwork.ozlabs.org/patch/870355"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1040446"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2024-58066"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-06T16:15:52Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: mmp: pxa1908-apbcp: Fix a NULL vs IS_ERR() check\n\nThe devm_kzalloc() function doesn\u0027t return error pointers, it returns\nNULL on error.  Update the check to match.",
  "id": "GHSA-cvr2-vqw8-v6q9",
  "modified": "2025-03-25T15:31:22Z",
  "published": "2025-03-06T18:31:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-58066"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2b3a36fb572caf9fb72f158be328395b1c938bf7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3acea81be689b77b3ceac6ff345ff0366734d967"
    }
  ],
  "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-2024-56702"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-28T10:15:17Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Mark raw_tp arguments with PTR_MAYBE_NULL\n\nArguments to a raw tracepoint are tagged as trusted, which carries the\nsemantics that the pointer will be non-NULL.  However, in certain cases,\na raw tracepoint argument may end up being NULL. More context about this\nissue is available in [0].\n\nThus, there is a discrepancy between the reality, that raw_tp arguments\ncan actually be NULL, and the verifier\u0027s knowledge, that they are never\nNULL, causing explicit NULL checks to be deleted, and accesses to such\npointers potentially crashing the kernel.\n\nTo fix this, mark raw_tp arguments as PTR_MAYBE_NULL, and then special\ncase the dereference and pointer arithmetic to permit it, and allow\npassing them into helpers/kfuncs; these exceptions are made for raw_tp\nprograms only. Ensure that we don\u0027t do this when ref_obj_id \u003e 0, as in\nthat case this is an acquired object and doesn\u0027t need such adjustment.\n\nThe reason we do mask_raw_tp_trusted_reg logic is because other will\nrecheck in places whether the register is a trusted_reg, and then\nconsider our register as untrusted when detecting the presence of the\nPTR_MAYBE_NULL flag.\n\nTo allow safe dereference, we enable PROBE_MEM marking when we see loads\ninto trusted pointers with PTR_MAYBE_NULL.\n\nWhile trusted raw_tp arguments can also be passed into helpers or kfuncs\nwhere such broken assumption may cause issues, a future patch set will\ntackle their case separately, as PTR_TO_BTF_ID (without PTR_TRUSTED) can\nalready be passed into helpers and causes similar problems. Thus, they\nare left alone for now.\n\nIt is possible that these checks also permit passing non-raw_tp args\nthat are trusted PTR_TO_BTF_ID with null marking. In such a case,\nallowing dereference when pointer is NULL expands allowed behavior, so\nwon\u0027t regress existing programs, and the case of passing these into\nhelpers is the same as above and will be dealt with later.\n\nAlso update the failure case in tp_btf_nullable selftest to capture the\nnew behavior, as the verifier will no longer cause an error when\ndirectly dereference a raw tracepoint argument marked as __nullable.\n\n  [0]: https://lore.kernel.org/bpf/ZrCZS6nisraEqehw@jlelli-thinkpadt14gen4.remote.csb",
  "id": "GHSA-cvxq-qv5g-cqw6",
  "modified": "2025-02-03T15:32:01Z",
  "published": "2024-12-28T12:30:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56702"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3634d4a310820567fc634bf8f1ee2b91378773e8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9b91d2d54175f781ad2c361cb2ac2c0e29b14b6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cb4158ce8ec8a5bb528cc1693356a5eb8058094d"
    }
  ],
  "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"
    }
  ]
}