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EUVD-2026-311640

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 07:18

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

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{
  "assigner": "ENISA",
  "date_reserved": "2026-10-02T07:18:16.167657+00:00",
  "id": "EUVD-2026-311640"
}

CVE-2023-52698 (GCVE-0-2023-52698)

Vulnerability from cvelistv5 – Published: 2024-05-17 14:27 – Updated: 2026-05-11 19:31

Title

calipso: fix memory leak in netlbl_calipso_add_pass()

Summary

In the Linux kernel, the following vulnerability has been resolved: calipso: fix memory leak in netlbl_calipso_add_pass() If IPv6 support is disabled at boot (ipv6.disable=1), the calipso_init() -> netlbl_calipso_ops_register() function isn't called, and the netlbl_calipso_ops_get() function always returns NULL. In this case, the netlbl_calipso_add_pass() function allocates memory for the doi_def variable but doesn't free it with the calipso_doi_free(). BUG: memory leak unreferenced object 0xffff888011d68180 (size 64): comm "syz-executor.1", pid 10746, jiffies 4295410986 (age 17.928s) hex dump (first 32 bytes): 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<...>] kmalloc include/linux/slab.h:552 [inline] [<...>] netlbl_calipso_add_pass net/netlabel/netlabel_calipso.c:76 [inline] [<...>] netlbl_calipso_add+0x22e/0x4f0 net/netlabel/netlabel_calipso.c:111 [<...>] genl_family_rcv_msg_doit+0x22f/0x330 net/netlink/genetlink.c:739 [<...>] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] [<...>] genl_rcv_msg+0x341/0x5a0 net/netlink/genetlink.c:800 [<...>] netlink_rcv_skb+0x14d/0x440 net/netlink/af_netlink.c:2515 [<...>] genl_rcv+0x29/0x40 net/netlink/genetlink.c:811 [<...>] netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] [<...>] netlink_unicast+0x54b/0x800 net/netlink/af_netlink.c:1339 [<...>] netlink_sendmsg+0x90a/0xdf0 net/netlink/af_netlink.c:1934 [<...>] sock_sendmsg_nosec net/socket.c:651 [inline] [<...>] sock_sendmsg+0x157/0x190 net/socket.c:671 [<...>] ____sys_sendmsg+0x712/0x870 net/socket.c:2342 [<...>] ___sys_sendmsg+0xf8/0x170 net/socket.c:2396 [<...>] __sys_sendmsg+0xea/0x1b0 net/socket.c:2429 [<...>] do_syscall_64+0x30/0x40 arch/x86/entry/common.c:46 [<...>] entry_SYSCALL_64_after_hwframe+0x61/0xc6 Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with Syzkaller [PM: merged via the LSM tree at Jakub Kicinski request]

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-12 15:13 UTC

Assigner

Linux mitre root Scorecard

References

10 references

URL	Tags
https://git.kernel.org/stable/c/9a8f811a146aa2a02…
https://git.kernel.org/stable/c/36e19f84634aaa94f…
https://git.kernel.org/stable/c/44a88650ba55e6a7f…
https://git.kernel.org/stable/c/a4529a08d3704c17e…
https://git.kernel.org/stable/c/321b3a5592c8a9d6b…
https://git.kernel.org/stable/c/408bbd1e1746fe33e…
https://git.kernel.org/stable/c/f14d36e6e97fe935a…
https://git.kernel.org/stable/c/ec4e9d630a64df500…
https://lists.debian.org/debian-lts-announce/2024…	x_transferred
https://lists.debian.org/debian-lts-announce/2024…	x_transferred

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: cb72d38211eacda2dd90b09540542b6582da614e , < 9a8f811a146aa2a0230f8edb2e9f4b6609aab8da (git) Affected: cb72d38211eacda2dd90b09540542b6582da614e , < 36e19f84634aaa94f543fedc0a07588949638d53 (git) Affected: cb72d38211eacda2dd90b09540542b6582da614e , < 44a88650ba55e6a7f2ec485d2c2413ba7e216f01 (git) Affected: cb72d38211eacda2dd90b09540542b6582da614e , < a4529a08d3704c17ea9c7277d180e46b99250ded (git) Affected: cb72d38211eacda2dd90b09540542b6582da614e , < 321b3a5592c8a9d6b654c7c64833ea67dbb33149 (git) Affected: cb72d38211eacda2dd90b09540542b6582da614e , < 408bbd1e1746fe33e51f4c81c2febd7d3841d031 (git) Affected: cb72d38211eacda2dd90b09540542b6582da614e , < f14d36e6e97fe935a20e0ceb159c100f90b6627c (git) Affected: cb72d38211eacda2dd90b09540542b6582da614e , < ec4e9d630a64df500641892f4e259e8149594a99 (git)
Linux	Linux	Affected: 4.8 Unaffected: 0 , < 4.8 (semver) Unaffected: 4.19.306 , ≤ 4.19.* (semver) Unaffected: 5.4.268 , ≤ 5.4.* (semver) Unaffected: 5.10.209 , ≤ 5.10.* (semver) Unaffected: 5.15.148 , ≤ 5.15.* (semver) Unaffected: 6.1.75 , ≤ 6.1.* (semver) Unaffected: 6.6.14 , ≤ 6.6.* (semver) Unaffected: 6.7.2 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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      {
        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2023-52698",
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                  },
                  {
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                "role": "CISA Coordinator",
                "timestamp": "2024-06-12T15:13:30.543415Z",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncalipso: fix memory leak in netlbl_calipso_add_pass()\n\nIf IPv6 support is disabled at boot (ipv6.disable=1),\nthe calipso_init() -\u003e netlbl_calipso_ops_register() function isn\u0027t called,\nand the netlbl_calipso_ops_get() function always returns NULL.\nIn this case, the netlbl_calipso_add_pass() function allocates memory\nfor the doi_def variable but doesn\u0027t free it with the calipso_doi_free().\n\nBUG: memory leak\nunreferenced object 0xffff888011d68180 (size 64):\n  comm \"syz-executor.1\", pid 10746, jiffies 4295410986 (age 17.928s)\n  hex dump (first 32 bytes):\n    00 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [\u003c...\u003e] kmalloc include/linux/slab.h:552 [inline]\n    [\u003c...\u003e] netlbl_calipso_add_pass net/netlabel/netlabel_calipso.c:76 [inline]\n    [\u003c...\u003e] netlbl_calipso_add+0x22e/0x4f0 net/netlabel/netlabel_calipso.c:111\n    [\u003c...\u003e] genl_family_rcv_msg_doit+0x22f/0x330 net/netlink/genetlink.c:739\n    [\u003c...\u003e] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]\n    [\u003c...\u003e] genl_rcv_msg+0x341/0x5a0 net/netlink/genetlink.c:800\n    [\u003c...\u003e] netlink_rcv_skb+0x14d/0x440 net/netlink/af_netlink.c:2515\n    [\u003c...\u003e] genl_rcv+0x29/0x40 net/netlink/genetlink.c:811\n    [\u003c...\u003e] netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]\n    [\u003c...\u003e] netlink_unicast+0x54b/0x800 net/netlink/af_netlink.c:1339\n    [\u003c...\u003e] netlink_sendmsg+0x90a/0xdf0 net/netlink/af_netlink.c:1934\n    [\u003c...\u003e] sock_sendmsg_nosec net/socket.c:651 [inline]\n    [\u003c...\u003e] sock_sendmsg+0x157/0x190 net/socket.c:671\n    [\u003c...\u003e] ____sys_sendmsg+0x712/0x870 net/socket.c:2342\n    [\u003c...\u003e] ___sys_sendmsg+0xf8/0x170 net/socket.c:2396\n    [\u003c...\u003e] __sys_sendmsg+0xea/0x1b0 net/socket.c:2429\n    [\u003c...\u003e] do_syscall_64+0x30/0x40 arch/x86/entry/common.c:46\n    [\u003c...\u003e] entry_SYSCALL_64_after_hwframe+0x61/0xc6\n\nFound by InfoTeCS on behalf of Linux Verification Center\n(linuxtesting.org) with Syzkaller\n\n[PM: merged via the LSM tree at Jakub Kicinski request]"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52698",
    "datePublished": "2024-05-17T14:27:29.885Z",
    "dateReserved": "2024-03-07T14:49:46.889Z",
    "dateUpdated": "2026-05-11T19:31:55.309Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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EUVD-2026-311640

CVE-2023-52698 (GCVE-0-2023-52698)

Tags

Sightings

Nomenclature

Related by attack behaviour