Common Weakness Enumeration

CWE-401

Allowed

Missing Release of Memory after Effective Lifetime

Abstraction: Variant · Status: Draft

API response cwe.mitre.org

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

2002 vulnerabilities reference this CWE, most recent first.

GHSA-QFQ5-6534-XV4C

Vulnerability from github – Published: 2022-10-17 12:00 – Updated: 2022-10-19 12:00
VLAI
Details

A vulnerability, which was classified as problematic, has been found in Linux Kernel. This issue affects the function ipneigh_get of the file ip/ipneigh.c of the component iproute2. The manipulation leads to memory leak. The attack may be initiated remotely. It is recommended to apply a patch to fix this issue. The identifier VDB-211025 was assigned to this vulnerability.

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
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{
  "affected": [],
  "aliases": [
    "CVE-2022-3527"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401",
      "CWE-404"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-10-16T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability, which was classified as problematic, has been found in Linux Kernel. This issue affects the function ipneigh_get of the file ip/ipneigh.c of the component iproute2. The manipulation leads to memory leak. The attack may be initiated remotely. It is recommended to apply a patch to fix this issue. The identifier VDB-211025 was assigned to this vulnerability.",
  "id": "GHSA-qfq5-6534-xv4c",
  "modified": "2022-10-19T12:00:20Z",
  "published": "2022-10-17T12:00:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3527"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/network/iproute2/iproute2-next.git/commit/?id=c5433c4b7a57d380f4cb351316f5ba5ebae9538e"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.211025"
    }
  ],
  "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-QFQP-3R73-7WWQ

Vulnerability from github – Published: 2022-05-24 19:03 – Updated: 2022-05-24 19:03
VLAI
Details

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the ff_frame_pool_get function in framepool.c.

Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2020-22048"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-06-02T16:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the ff_frame_pool_get function in framepool.c.",
  "id": "GHSA-qfqp-3r73-7wwq",
  "modified": "2022-05-24T19:03:52Z",
  "published": "2022-05-24T19:03:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-22048"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00012.html"
    },
    {
      "type": "WEB",
      "url": "https://trac.ffmpeg.org/ticket/8303"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-QFXQ-CGCJ-HCMG

Vulnerability from github – Published: 2024-05-01 06:31 – Updated: 2024-12-23 15:30
VLAI
Details

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

netfilter: nf_tables: fix memleak in map from abort path

The delete set command does not rely on the transaction object for element removal, therefore, a combination of delete element + delete set from the abort path could result in restoring twice the refcount of the mapping.

Check for inactive element in the next generation for the delete element command in the abort path, skip restoring state if next generation bit has been already cleared. This is similar to the activate logic using the set walk iterator.

[ 6170.286929] ------------[ cut here ]------------ [ 6170.286939] WARNING: CPU: 6 PID: 790302 at net/netfilter/nf_tables_api.c:2086 nf_tables_chain_destroy+0x1f7/0x220 [nf_tables] [ 6170.287071] Modules linked in: [...] [ 6170.287633] CPU: 6 PID: 790302 Comm: kworker/6:2 Not tainted 6.9.0-rc3+ #365 [ 6170.287768] RIP: 0010:nf_tables_chain_destroy+0x1f7/0x220 [nf_tables] [ 6170.287886] Code: df 48 8d 7d 58 e8 69 2e 3b df 48 8b 7d 58 e8 80 1b 37 df 48 8d 7d 68 e8 57 2e 3b df 48 8b 7d 68 e8 6e 1b 37 df 48 89 ef eb c4 <0f> 0b 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 0f [ 6170.287895] RSP: 0018:ffff888134b8fd08 EFLAGS: 00010202 [ 6170.287904] RAX: 0000000000000001 RBX: ffff888125bffb28 RCX: dffffc0000000000 [ 6170.287912] RDX: 0000000000000003 RSI: ffffffffa20298ab RDI: ffff88811ebe4750 [ 6170.287919] RBP: ffff88811ebe4700 R08: ffff88838e812650 R09: fffffbfff0623a55 [ 6170.287926] R10: ffffffff8311d2af R11: 0000000000000001 R12: ffff888125bffb10 [ 6170.287933] R13: ffff888125bffb10 R14: dead000000000122 R15: dead000000000100 [ 6170.287940] FS: 0000000000000000(0000) GS:ffff888390b00000(0000) knlGS:0000000000000000 [ 6170.287948] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6170.287955] CR2: 00007fd31fc00710 CR3: 0000000133f60004 CR4: 00000000001706f0 [ 6170.287962] Call Trace: [ 6170.287967] [ 6170.287973] ? __warn+0x9f/0x1a0 [ 6170.287986] ? nf_tables_chain_destroy+0x1f7/0x220 [nf_tables] [ 6170.288092] ? report_bug+0x1b1/0x1e0 [ 6170.287986] ? nf_tables_chain_destroy+0x1f7/0x220 [nf_tables] [ 6170.288092] ? report_bug+0x1b1/0x1e0 [ 6170.288104] ? handle_bug+0x3c/0x70 [ 6170.288112] ? exc_invalid_op+0x17/0x40 [ 6170.288120] ? asm_exc_invalid_op+0x1a/0x20 [ 6170.288132] ? nf_tables_chain_destroy+0x2b/0x220 [nf_tables] [ 6170.288243] ? nf_tables_chain_destroy+0x1f7/0x220 [nf_tables] [ 6170.288366] ? nf_tables_chain_destroy+0x2b/0x220 [nf_tables] [ 6170.288483] nf_tables_trans_destroy_work+0x588/0x590 [nf_tables]

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-2024-27011"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-01T06:15:19Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: fix memleak in map from abort path\n\nThe delete set command does not rely on the transaction object for\nelement removal, therefore, a combination of delete element + delete set\nfrom the abort path could result in restoring twice the refcount of the\nmapping.\n\nCheck for inactive element in the next generation for the delete element\ncommand in the abort path, skip restoring state if next generation bit\nhas been already cleared. This is similar to the activate logic using\nthe set walk iterator.\n\n[ 6170.286929] ------------[ cut here ]------------\n[ 6170.286939] WARNING: CPU: 6 PID: 790302 at net/netfilter/nf_tables_api.c:2086 nf_tables_chain_destroy+0x1f7/0x220 [nf_tables]\n[ 6170.287071] Modules linked in: [...]\n[ 6170.287633] CPU: 6 PID: 790302 Comm: kworker/6:2 Not tainted 6.9.0-rc3+ #365\n[ 6170.287768] RIP: 0010:nf_tables_chain_destroy+0x1f7/0x220 [nf_tables]\n[ 6170.287886] Code: df 48 8d 7d 58 e8 69 2e 3b df 48 8b 7d 58 e8 80 1b 37 df 48 8d 7d 68 e8 57 2e 3b df 48 8b 7d 68 e8 6e 1b 37 df 48 89 ef eb c4 \u003c0f\u003e 0b 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 0f\n[ 6170.287895] RSP: 0018:ffff888134b8fd08 EFLAGS: 00010202\n[ 6170.287904] RAX: 0000000000000001 RBX: ffff888125bffb28 RCX: dffffc0000000000\n[ 6170.287912] RDX: 0000000000000003 RSI: ffffffffa20298ab RDI: ffff88811ebe4750\n[ 6170.287919] RBP: ffff88811ebe4700 R08: ffff88838e812650 R09: fffffbfff0623a55\n[ 6170.287926] R10: ffffffff8311d2af R11: 0000000000000001 R12: ffff888125bffb10\n[ 6170.287933] R13: ffff888125bffb10 R14: dead000000000122 R15: dead000000000100\n[ 6170.287940] FS:  0000000000000000(0000) GS:ffff888390b00000(0000) knlGS:0000000000000000\n[ 6170.287948] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 6170.287955] CR2: 00007fd31fc00710 CR3: 0000000133f60004 CR4: 00000000001706f0\n[ 6170.287962] Call Trace:\n[ 6170.287967]  \u003cTASK\u003e\n[ 6170.287973]  ? __warn+0x9f/0x1a0\n[ 6170.287986]  ? nf_tables_chain_destroy+0x1f7/0x220 [nf_tables]\n[ 6170.288092]  ? report_bug+0x1b1/0x1e0\n[ 6170.287986]  ? nf_tables_chain_destroy+0x1f7/0x220 [nf_tables]\n[ 6170.288092]  ? report_bug+0x1b1/0x1e0\n[ 6170.288104]  ? handle_bug+0x3c/0x70\n[ 6170.288112]  ? exc_invalid_op+0x17/0x40\n[ 6170.288120]  ? asm_exc_invalid_op+0x1a/0x20\n[ 6170.288132]  ? nf_tables_chain_destroy+0x2b/0x220 [nf_tables]\n[ 6170.288243]  ? nf_tables_chain_destroy+0x1f7/0x220 [nf_tables]\n[ 6170.288366]  ? nf_tables_chain_destroy+0x2b/0x220 [nf_tables]\n[ 6170.288483]  nf_tables_trans_destroy_work+0x588/0x590 [nf_tables]",
  "id": "GHSA-qfxq-cgcj-hcmg",
  "modified": "2024-12-23T15:30:46Z",
  "published": "2024-05-01T06:31:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27011"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/49d0e656d19dfb2d4d7c230e4a720d37b3decff6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/86a1471d7cde792941109b93b558b5dc078b9ee9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1bd2a38a1c6388fc8556816dc203c3e9dc52237"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW"
    }
  ],
  "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-QG8X-2GCC-V7RF

Vulnerability from github – Published: 2023-02-23 21:30 – Updated: 2023-03-08 00:30
VLAI
Details

A vulnerability in the Link Layer Discovery Protocol (LLDP) feature for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode could allow an unauthenticated, adjacent attacker to cause a memory leak, which could result in an unexpected reload of the device. This vulnerability is due to incorrect error checking when parsing ingress LLDP packets. An attacker could exploit this vulnerability by sending a steady stream of crafted LLDP packets to an affected device. A successful exploit could allow the attacker to cause a memory leak, which could result in a denial of service (DoS) condition when the device unexpectedly reloads. Note: This vulnerability cannot be exploited by transit traffic through the device. The crafted LLDP packet must be targeted to a directly connected interface, and the attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent). In addition, the attack surface for this vulnerability can be reduced by disabling LLDP on interfaces where it is not required.

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

{
  "affected": [],
  "aliases": [
    "CVE-2023-20089"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-02-23T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability in the Link Layer Discovery Protocol (LLDP) feature for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode could allow an unauthenticated, adjacent attacker to cause a memory leak, which could result in an unexpected reload of the device. This vulnerability is due to incorrect error checking when parsing ingress LLDP packets. An attacker could exploit this vulnerability by sending a steady stream of crafted LLDP packets to an affected device. A successful exploit could allow the attacker to cause a memory leak, which could result in a denial of service (DoS) condition when the device unexpectedly reloads. Note: This vulnerability cannot be exploited by transit traffic through the device. The crafted LLDP packet must be targeted to a directly connected interface, and the attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent). In addition, the attack surface for this vulnerability can be reduced by disabling LLDP on interfaces where it is not required.",
  "id": "GHSA-qg8x-2gcc-v7rf",
  "modified": "2023-03-08T00:30:34Z",
  "published": "2023-02-23T21:30:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-20089"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aci-lldp-dos-ySCNZOpX"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-QGHH-PCQM-R2R3

Vulnerability from github – Published: 2024-07-12 15:31 – Updated: 2025-11-04 00:30
VLAI
Details

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

crypto: hisilicon/sec - Fix memory leak for sec resource release

The AIV is one of the SEC resources. When releasing resources, it need to release the AIV resources at the same time. Otherwise, memory leakage occurs.

The aiv resource release is added to the sec resource release function.

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-2024-41002"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-12T13:15:21Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: hisilicon/sec - Fix memory leak for sec resource release\n\nThe AIV is one of the SEC resources. When releasing resources,\nit need to release the AIV resources at the same time.\nOtherwise, memory leakage occurs.\n\nThe aiv resource release is added to the sec resource release\nfunction.",
  "id": "GHSA-qghh-pcqm-r2r3",
  "modified": "2025-11-04T00:30:58Z",
  "published": "2024-07-12T15:31:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41002"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/36810d2db3496bb8b4db7ccda666674a5efc7b47"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7c42ce556ff65995c8875c9ed64141c14238e7e6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f21886370db451b0fdc651f6e41550a1da70601"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a886bcb0f67d1e3d6b2da25b3519de59098200c2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bba4250757b4ae1680fea435a358d8093f254094"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.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-QGJH-XMJV-7XQP

Vulnerability from github – Published: 2023-08-22 21:30 – Updated: 2024-04-04 07:05
VLAI
Details

An issue was discovered in GNU Binutils 2.34. It is a memory leak when process microblaze-dis.c. This one will consume memory on each insn disassembled.

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

{
  "affected": [],
  "aliases": [
    "CVE-2020-21490"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-08-22T19:16:13Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in GNU Binutils 2.34. It is a memory leak when process microblaze-dis.c. This one will consume memory on each insn disassembled.",
  "id": "GHSA-qgjh-xmjv-7xqp",
  "modified": "2024-04-04T07:05:50Z",
  "published": "2023-08-22T21:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-21490"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20230929-0007"
    },
    {
      "type": "WEB",
      "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=25249"
    },
    {
      "type": "WEB",
      "url": "https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=378fd436405b3051df34ac995b2e03fe1f3d1907"
    },
    {
      "type": "WEB",
      "url": "https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=378fd436405b3051df34ac995b2e03fe1f3d1907"
    }
  ],
  "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-QH2M-XFGM-CRH8

Vulnerability from github – Published: 2025-04-16 15:34 – Updated: 2025-11-03 21:33
VLAI
Details

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

udp: Fix memory accounting leak.

Matt Dowling reported a weird UDP memory usage issue.

Under normal operation, the UDP memory usage reported in /proc/net/sockstat remains close to zero. However, it occasionally spiked to 524,288 pages and never dropped. Moreover, the value doubled when the application was terminated. Finally, it caused intermittent packet drops.

We can reproduce the issue with the script below [0]:

  1. /proc/net/sockstat reports 0 pages

    cat /proc/net/sockstat | grep UDP:

    UDP: inuse 1 mem 0

  2. Run the script till the report reaches 524,288

    python3 test.py & sleep 5

    cat /proc/net/sockstat | grep UDP:

    UDP: inuse 3 mem 524288 <-- (INT_MAX + 1) >> PAGE_SHIFT

  3. Kill the socket and confirm the number never drops

    pkill python3 && sleep 5

    cat /proc/net/sockstat | grep UDP:

    UDP: inuse 1 mem 524288

  4. (necessary since v6.0) Trigger proto_memory_pcpu_drain()

    python3 test.py & sleep 1 && pkill python3

  5. The number doubles

    cat /proc/net/sockstat | grep UDP:

    UDP: inuse 1 mem 1048577

The application set INT_MAX to SO_RCVBUF, which triggered an integer overflow in udp_rmem_release().

When a socket is close()d, udp_destruct_common() purges its receive queue and sums up skb->truesize in the queue. This total is calculated and stored in a local unsigned integer variable.

The total size is then passed to udp_rmem_release() to adjust memory accounting. However, because the function takes a signed integer argument, the total size can wrap around, causing an overflow.

Then, the released amount is calculated as follows:

1) Add size to sk->sk_forward_alloc. 2) Round down sk->sk_forward_alloc to the nearest lower multiple of PAGE_SIZE and assign it to amount. 3) Subtract amount from sk->sk_forward_alloc. 4) Pass amount >> PAGE_SHIFT to __sk_mem_reduce_allocated().

When the issue occurred, the total in udp_destruct_common() was 2147484480 (INT_MAX + 833), which was cast to -2147482816 in udp_rmem_release().

At 1) sk->sk_forward_alloc is changed from 3264 to -2147479552, and 2) sets -2147479552 to amount. 3) reverts the wraparound, so we don't see a warning in inet_sock_destruct(). However, udp_memory_allocated ends up doubling at 4).

Since commit 3cd3399dd7a8 ("net: implement per-cpu reserves for memory_allocated"), memory usage no longer doubles immediately after a socket is close()d because __sk_mem_reduce_allocated() caches the amount in udp_memory_per_cpu_fw_alloc. However, the next time a UDP socket receives a packet, the subtraction takes effect, causing UDP memory usage to double.

This issue makes further memory allocation fail once the socket's sk->sk_rmem_alloc exceeds net.ipv4.udp_rmem_min, resulting in packet drops.

To prevent this issue, let's use unsigned int for the calculation and call sk_forward_alloc_add() only once for the small delta.

Note that first_packet_length() also potentially has the same problem.

[0]: from socket import *

SO_RCVBUFFORCE = 33 INT_MAX = (2 ** 31) - 1

s = socket(AF_INET, SOCK_DGRAM) s.bind(('', 0)) s.setsockopt(SOL_SOCKET, SO_RCVBUFFORCE, INT_MAX)

c = socket(AF_INET, SOCK_DGRAM) c.connect(s.getsockname())

data = b'a' * 100

while True: c.send(data)

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-2025-22058"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-16T15:15:59Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nudp: Fix memory accounting leak.\n\nMatt Dowling reported a weird UDP memory usage issue.\n\nUnder normal operation, the UDP memory usage reported in /proc/net/sockstat\nremains close to zero.  However, it occasionally spiked to 524,288 pages\nand never dropped.  Moreover, the value doubled when the application was\nterminated.  Finally, it caused intermittent packet drops.\n\nWe can reproduce the issue with the script below [0]:\n\n  1. /proc/net/sockstat reports 0 pages\n\n    # cat /proc/net/sockstat | grep UDP:\n    UDP: inuse 1 mem 0\n\n  2. Run the script till the report reaches 524,288\n\n    # python3 test.py \u0026 sleep 5\n    # cat /proc/net/sockstat | grep UDP:\n    UDP: inuse 3 mem 524288  \u003c-- (INT_MAX + 1) \u003e\u003e PAGE_SHIFT\n\n  3. Kill the socket and confirm the number never drops\n\n    # pkill python3 \u0026\u0026 sleep 5\n    # cat /proc/net/sockstat | grep UDP:\n    UDP: inuse 1 mem 524288\n\n  4. (necessary since v6.0) Trigger proto_memory_pcpu_drain()\n\n    # python3 test.py \u0026 sleep 1 \u0026\u0026 pkill python3\n\n  5. The number doubles\n\n    # cat /proc/net/sockstat | grep UDP:\n    UDP: inuse 1 mem 1048577\n\nThe application set INT_MAX to SO_RCVBUF, which triggered an integer\noverflow in udp_rmem_release().\n\nWhen a socket is close()d, udp_destruct_common() purges its receive\nqueue and sums up skb-\u003etruesize in the queue.  This total is calculated\nand stored in a local unsigned integer variable.\n\nThe total size is then passed to udp_rmem_release() to adjust memory\naccounting.  However, because the function takes a signed integer\nargument, the total size can wrap around, causing an overflow.\n\nThen, the released amount is calculated as follows:\n\n  1) Add size to sk-\u003esk_forward_alloc.\n  2) Round down sk-\u003esk_forward_alloc to the nearest lower multiple of\n      PAGE_SIZE and assign it to amount.\n  3) Subtract amount from sk-\u003esk_forward_alloc.\n  4) Pass amount \u003e\u003e PAGE_SHIFT to __sk_mem_reduce_allocated().\n\nWhen the issue occurred, the total in udp_destruct_common() was 2147484480\n(INT_MAX + 833), which was cast to -2147482816 in udp_rmem_release().\n\nAt 1) sk-\u003esk_forward_alloc is changed from 3264 to -2147479552, and\n2) sets -2147479552 to amount.  3) reverts the wraparound, so we don\u0027t\nsee a warning in inet_sock_destruct().  However, udp_memory_allocated\nends up doubling at 4).\n\nSince commit 3cd3399dd7a8 (\"net: implement per-cpu reserves for\nmemory_allocated\"), memory usage no longer doubles immediately after\na socket is close()d because __sk_mem_reduce_allocated() caches the\namount in udp_memory_per_cpu_fw_alloc.  However, the next time a UDP\nsocket receives a packet, the subtraction takes effect, causing UDP\nmemory usage to double.\n\nThis issue makes further memory allocation fail once the socket\u0027s\nsk-\u003esk_rmem_alloc exceeds net.ipv4.udp_rmem_min, resulting in packet\ndrops.\n\nTo prevent this issue, let\u0027s use unsigned int for the calculation and\ncall sk_forward_alloc_add() only once for the small delta.\n\nNote that first_packet_length() also potentially has the same problem.\n\n[0]:\nfrom socket import *\n\nSO_RCVBUFFORCE = 33\nINT_MAX = (2 ** 31) - 1\n\ns = socket(AF_INET, SOCK_DGRAM)\ns.bind((\u0027\u0027, 0))\ns.setsockopt(SOL_SOCKET, SO_RCVBUFFORCE, INT_MAX)\n\nc = socket(AF_INET, SOCK_DGRAM)\nc.connect(s.getsockname())\n\ndata = b\u0027a\u0027 * 100\n\nwhile True:\n    c.send(data)",
  "id": "GHSA-qh2m-xfgm-crh8",
  "modified": "2025-11-03T21:33:36Z",
  "published": "2025-04-16T15:34:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22058"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/13550273171f5108b1ac572d8f72f4256ab92854"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3836029448e76c1e6f77cc5fe0adc09b018b5fa8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9122fec396950cc866137af7154b1d0d989be52e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a116b271bf3cb72c8155b6b7f39083c1b80dcd00"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aeef6456692c6f11ae53d278df64f1316a2a405a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c3ad8c30b6b109283d2643e925f8e65f2e7ab34e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c4bac6c398118fba79e32b1cd01db22dbfe29fbf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d9c8266ce536e8314d84370e983afcaa36fb19cf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df207de9d9e7a4d92f8567e2c539d9c8c12fd99d"
    },
    {
      "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-QH82-7CHJ-9876

Vulnerability from github – Published: 2024-05-01 15:30 – Updated: 2025-01-14 15:30
VLAI
Details

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

SUNRPC: fix some memleaks in gssx_dec_option_array

The creds and oa->data need to be freed in the error-handling paths after their allocation. So this patch add these deallocations in the corresponding paths.

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-2024-27388"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-01T13:15:51Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nSUNRPC: fix some memleaks in gssx_dec_option_array\n\nThe creds and oa-\u003edata need to be freed in the error-handling paths after\ntheir allocation. So this patch add these deallocations in the\ncorresponding paths.",
  "id": "GHSA-qh82-7chj-9876",
  "modified": "2025-01-14T15:30:49Z",
  "published": "2024-05-01T15:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27388"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3cfcfc102a5e57b021b786a755a38935e357797d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5e6013ae2c8d420faea553d363935f65badd32c3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/934212a623cbab851848b6de377eb476718c3e4c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9806c2393cd2ab0a8e7bb9ffae02ce20e3112ec4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/996997d1fb2126feda550d6adcedcbd94911fc69"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b97c37978ca825557d331c9012e0c1ddc0e42364"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bb336cd8d5ecb69c430ebe3e7bcff68471d93fa8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bfa9d86d39a0fe4685f90c3529aa9bd62a9d97a8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dd292e884c649f9b1c18af0ec75ca90b390cd044"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.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-QH8G-P933-67R9

Vulnerability from github – Published: 2024-05-21 15:31 – Updated: 2025-09-19 15:31
VLAI
Details

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

RDMA/hfi1: Fix kernel pointer leak

Pointers should be printed with %p or %px rather than cast to 'unsigned long long' and printed with %llx. Change %llx to %p to print the secured pointer.

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-2021-47398"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T15:15:25Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hfi1: Fix kernel pointer leak\n\nPointers should be printed with %p or %px rather than cast to \u0027unsigned\nlong long\u0027 and printed with %llx.  Change %llx to %p to print the secured\npointer.",
  "id": "GHSA-qh8g-p933-67r9",
  "modified": "2025-09-19T15:31:07Z",
  "published": "2024-05-21T15:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47398"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/714bfabe5f2901d96902e271d7217601fe4703e5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7d5cfafe8b4006a75b55c2f1fdfdb363f9a5cc98"
    }
  ],
  "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-QHCV-7G4X-GF9R

Vulnerability from github – Published: 2025-10-01 12:30 – Updated: 2026-01-16 21:30
VLAI
Details

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

wifi: rtw88: fix memory leak in rtw_usb_probe()

drivers/net/wireless/realtek/rtw88/usb.c:876 rtw_usb_probe() warn: 'hw' from ieee80211_alloc_hw() not released on lines: 811

Fix this by modifying return to a goto statement.

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-2023-53460"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-01T12:15:47Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw88: fix memory leak in rtw_usb_probe()\n\ndrivers/net/wireless/realtek/rtw88/usb.c:876 rtw_usb_probe()\nwarn: \u0027hw\u0027 from ieee80211_alloc_hw() not released on lines: 811\n\nFix this by modifying return to a goto statement.",
  "id": "GHSA-qhcv-7g4x-gf9r",
  "modified": "2026-01-16T21:30:30Z",
  "published": "2025-10-01T12:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53460"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/48181d285623198c33bb9698992502687b258efa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6cc92379b80af005e1f49ef6ef790cddc58cf0da"
    }
  ],
  "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-41
Implementation

Strategy: Libraries or Frameworks

  • Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone.
  • For example, glibc in Linux provides protection against free of invalid pointers.
  • When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391].
  • To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.
Mitigation
Architecture and Design

Use an abstraction library to abstract away risky APIs. Not a complete solution.

Mitigation
Architecture and Design Build and Compilation

Consider using the Boehm-Demers-Weiser garbage collector (bdwgc), which can help avoid leaks.

No CAPEC attack patterns related to this CWE.

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