CVE-2023-52698 (GCVE-0-2023-52698)
Vulnerability from cvelistv5 – Published: 2024-05-17 14:27 – Updated: 2026-05-11 19:31
VLAI
EPSS
VEX
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
References
10 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| 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) |
guessed | |
| 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) |
guessed |
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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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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: calipso: corrige la p\u00e9rdida de memoria en netlbl_calipso_add_pass() Si la compatibilidad con IPv6 est\u00e1 deshabilitada en el arranque (ipv6.disable=1), no se llama a la funci\u00f3n calipso_init() -\u0026gt; netlbl_calipso_ops_register() y la funci\u00f3n netlbl_calipso_ops_get() siempre devuelve NULL. En este caso, la funci\u00f3n netlbl_calipso_add_pass() asigna memoria para la variable doi_def pero no la libera con calipso_doi_free(). ERROR: p\u00e9rdida de memoria, objeto sin referencia 0xffff888011d68180 (tama\u00f1o 64): comunicaci\u00f3n \"syz-executor.1\", pid 10746, jiffies 4295410986 (edad 17,928 s) volcado hexadecimal (primeros 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 ................. ... seguimiento: [\u0026lt;...\u0026gt;] kmalloc include/linux/slab.h:552 [en l\u00ednea] [\u0026lt;...\u0026gt;] netlbl_calipso_add_pass net/netlabel/netlabel_calipso.c:76 [en l\u00ednea] [\u0026lt;... \u0026gt;] netlbl_calipso_add+0x22e/0x4f0 net/netlabel/netlabel_calipso.c:111 [\u0026lt;...\u0026gt;] genl_family_rcv_msg_doit+0x22f/0x330 net/netlink/genetlink.c:739 [\u0026lt;...\u0026gt;] genl_family_rcv_msg net/netlink/genetlink .c:783 [en l\u00ednea] [\u0026lt;...\u0026gt;] genl_rcv_msg+0x341/0x5a0 net/netlink/genetlink.c:800 [\u0026lt;...\u0026gt;] netlink_rcv_skb+0x14d/0x440 net/netlink/af_netlink.c:2515 [ \u0026lt;...\u0026gt;] genl_rcv+0x29/0x40 net/netlink/genetlink.c:811 [\u0026lt;...\u0026gt;] netlink_unicast_kernel net/netlink/af_netlink.c:1313 [en l\u00ednea] [\u0026lt;...\u0026gt;] netlink_unicast+0x54b /0x800 net/netlink/af_netlink.c:1339 [\u0026lt;...\u0026gt;] netlink_sendmsg+0x90a/0xdf0 net/netlink/af_netlink.c:1934 [\u0026lt;...\u0026gt;] sock_sendmsg_nosec net/socket.c:651 [en l\u00ednea] [\u0026lt;...\u0026gt;] sock_sendmsg+0x157/0x190 net/socket.c:671 [\u0026lt;...\u0026gt;] ____sys_sendmsg+0x712/0x870 net/socket.c:2342 [\u0026lt;...\u0026gt;] ___sys_sendmsg+0xf8/0x170 net/socket.c:2396 [\u0026lt;...\u0026gt;] __sys_sendmsg+0xea/0x1b0 net/socket.c:2429 [\u0026lt;...\u0026gt;] do_syscall_64+0x30/0x40 arch/x86/entry/common.c:46 [ \u0026lt;...\u0026gt;] Entry_SYSCALL_64_after_hwframe+0x61/0xc6 Encontrado por InfoTeCS en nombre del Centro de verificaci\u00f3n de Linux (linuxtesting.org) con Syzkaller [PM: fusionado a trav\u00e9s del \u00e1rbol LSM a petici\u00f3n de Jakub Kicinski]"
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"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]"
}
],
"providerMetadata": {
"dateUpdated": "2025-05-04T07:41:51.813Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/9a8f811a146aa2a0230f8edb2e9f4b6609aab8da"
},
{
"url": "https://git.kernel.org/stable/c/36e19f84634aaa94f543fedc0a07588949638d53"
},
{
"url": "https://git.kernel.org/stable/c/44a88650ba55e6a7f2ec485d2c2413ba7e216f01"
},
{
"url": "https://git.kernel.org/stable/c/a4529a08d3704c17ea9c7277d180e46b99250ded"
},
{
"url": "https://git.kernel.org/stable/c/321b3a5592c8a9d6b654c7c64833ea67dbb33149"
},
{
"url": "https://git.kernel.org/stable/c/408bbd1e1746fe33e51f4c81c2febd7d3841d031"
},
{
"url": "https://git.kernel.org/stable/c/f14d36e6e97fe935a20e0ceb159c100f90b6627c"
},
{
"url": "https://git.kernel.org/stable/c/ec4e9d630a64df500641892f4e259e8149594a99"
}
],
"title": "calipso: fix memory leak in netlbl_calipso_add_pass()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2023-52698",
"datePublished": "2024-05-17T14:27:29.885Z",
"dateReserved": "2024-03-07T14:49:46.889Z",
"dateUpdated": "2025-05-04T07:41:51.813Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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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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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.