FKIE_CVE-2024-26615
Vulnerability from fkie_nvd - Published: 2024-03-11 18:15 - Updated: 2026-06-17 07:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/smc: fix illegal rmb_desc access in SMC-D connection dump
A crash was found when dumping SMC-D connections. It can be reproduced
by following steps:
- run nginx/wrk test:
smc_run nginx
smc_run wrk -t 16 -c 1000 -d <duration> -H 'Connection: Close' <URL>
- continuously dump SMC-D connections in parallel:
watch -n 1 'smcss -D'
BUG: kernel NULL pointer dereference, address: 0000000000000030
CPU: 2 PID: 7204 Comm: smcss Kdump: loaded Tainted: G E 6.7.0+ #55
RIP: 0010:__smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag]
Call Trace:
<TASK>
? __die+0x24/0x70
? page_fault_oops+0x66/0x150
? exc_page_fault+0x69/0x140
? asm_exc_page_fault+0x26/0x30
? __smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag]
? __kmalloc_node_track_caller+0x35d/0x430
? __alloc_skb+0x77/0x170
smc_diag_dump_proto+0xd0/0xf0 [smc_diag]
smc_diag_dump+0x26/0x60 [smc_diag]
netlink_dump+0x19f/0x320
__netlink_dump_start+0x1dc/0x300
smc_diag_handler_dump+0x6a/0x80 [smc_diag]
? __pfx_smc_diag_dump+0x10/0x10 [smc_diag]
sock_diag_rcv_msg+0x121/0x140
? __pfx_sock_diag_rcv_msg+0x10/0x10
netlink_rcv_skb+0x5a/0x110
sock_diag_rcv+0x28/0x40
netlink_unicast+0x22a/0x330
netlink_sendmsg+0x1f8/0x420
__sock_sendmsg+0xb0/0xc0
____sys_sendmsg+0x24e/0x300
? copy_msghdr_from_user+0x62/0x80
___sys_sendmsg+0x7c/0xd0
? __do_fault+0x34/0x160
? do_read_fault+0x5f/0x100
? do_fault+0xb0/0x110
? __handle_mm_fault+0x2b0/0x6c0
__sys_sendmsg+0x4d/0x80
do_syscall_64+0x69/0x180
entry_SYSCALL_64_after_hwframe+0x6e/0x76
It is possible that the connection is in process of being established
when we dump it. Assumed that the connection has been registered in a
link group by smc_conn_create() but the rmb_desc has not yet been
initialized by smc_buf_create(), thus causing the illegal access to
conn->rmb_desc. So fix it by checking before dump.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.8 |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/smc/smc_diag.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"status": "affected",
"version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d",
"versionType": "git"
},
{
"lessThan": "1fea9969b81c67d0cb1611d1b8b7d19049d937be",
"status": "affected",
"version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d",
"versionType": "git"
},
{
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"status": "affected",
"version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d",
"versionType": "git"
},
{
"lessThan": "68b888d51ac82f2b96bf5e077a31d76afcdef25a",
"status": "affected",
"version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d",
"versionType": "git"
},
{
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"status": "affected",
"version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d",
"versionType": "git"
},
{
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"status": "affected",
"version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d",
"versionType": "git"
},
{
"lessThan": "8f3f9186e5bb96a9c9654c41653210e3ea7e48a6",
"status": "affected",
"version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d",
"versionType": "git"
},
{
"lessThan": "dbc153fd3c142909e564bb256da087e13fbf239c",
"status": "affected",
"version": "4b1b7d3b30a6d32ac1a1dcede284e76ef8a8542d",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/smc/smc_diag.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.19"
},
{
"lessThan": "4.19",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.307",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.269",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.210",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.149",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.76",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.15",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"version": "6.7.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.8",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "06B28A70-F49B-4000-8405-B197D1957773",
"versionEndExcluding": "4.19.307",
"versionStartIncluding": "4.19",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "319545F3-D56C-4751-BEBF-0505478BBAE8",
"versionEndExcluding": "5.4.269",
"versionStartIncluding": "4.20",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F5CB4CA6-A9A0-4AFD-9102-8CF94D708170",
"versionEndExcluding": "5.10.210",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0D0465BB-4053-4E15-9137-6696EBAE90FD",
"versionEndExcluding": "5.15.149",
"versionStartIncluding": "5.11",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "32F0FEB3-5FE1-4400-A56D-886F09BE872E",
"versionEndExcluding": "6.1.76",
"versionStartIncluding": "5.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "87C718CB-AE3D-4B07-B4D9-BFF64183C468",
"versionEndExcluding": "6.6.15",
"versionStartIncluding": "6.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "58FD5308-148A-40D3-B36A-0CA6B434A8BF",
"versionEndExcluding": "6.7.3",
"versionStartIncluding": "6.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*",
"matchCriteriaId": "B9F4EA73-0894-400F-A490-3A397AB7A517",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix illegal rmb_desc access in SMC-D connection dump\n\nA crash was found when dumping SMC-D connections. It can be reproduced\nby following steps:\n\n- run nginx/wrk test:\n smc_run nginx\n smc_run wrk -t 16 -c 1000 -d \u003cduration\u003e -H \u0027Connection: Close\u0027 \u003cURL\u003e\n\n- continuously dump SMC-D connections in parallel:\n watch -n 1 \u0027smcss -D\u0027\n\n BUG: kernel NULL pointer dereference, address: 0000000000000030\n CPU: 2 PID: 7204 Comm: smcss Kdump: loaded Tainted: G\tE 6.7.0+ #55\n RIP: 0010:__smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag]\n Call Trace:\n \u003cTASK\u003e\n ? __die+0x24/0x70\n ? page_fault_oops+0x66/0x150\n ? exc_page_fault+0x69/0x140\n ? asm_exc_page_fault+0x26/0x30\n ? __smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag]\n ? __kmalloc_node_track_caller+0x35d/0x430\n ? __alloc_skb+0x77/0x170\n smc_diag_dump_proto+0xd0/0xf0 [smc_diag]\n smc_diag_dump+0x26/0x60 [smc_diag]\n netlink_dump+0x19f/0x320\n __netlink_dump_start+0x1dc/0x300\n smc_diag_handler_dump+0x6a/0x80 [smc_diag]\n ? __pfx_smc_diag_dump+0x10/0x10 [smc_diag]\n sock_diag_rcv_msg+0x121/0x140\n ? __pfx_sock_diag_rcv_msg+0x10/0x10\n netlink_rcv_skb+0x5a/0x110\n sock_diag_rcv+0x28/0x40\n netlink_unicast+0x22a/0x330\n netlink_sendmsg+0x1f8/0x420\n __sock_sendmsg+0xb0/0xc0\n ____sys_sendmsg+0x24e/0x300\n ? copy_msghdr_from_user+0x62/0x80\n ___sys_sendmsg+0x7c/0xd0\n ? __do_fault+0x34/0x160\n ? do_read_fault+0x5f/0x100\n ? do_fault+0xb0/0x110\n ? __handle_mm_fault+0x2b0/0x6c0\n __sys_sendmsg+0x4d/0x80\n do_syscall_64+0x69/0x180\n entry_SYSCALL_64_after_hwframe+0x6e/0x76\n\nIt is possible that the connection is in process of being established\nwhen we dump it. Assumed that the connection has been registered in a\nlink group by smc_conn_create() but the rmb_desc has not yet been\ninitialized by smc_buf_create(), thus causing the illegal access to\nconn-\u003ermb_desc. So fix it by checking before dump."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/smc: corrige el acceso ilegal a rmb_desc en el volcado de conexiones SMC-D Se encontr\u00f3 un bloqueo al volcar conexiones SMC-D. Se puede reproducir mediante los siguientes pasos: - ejecute la prueba nginx/wrk: smc_run nginx smc_run wrk -t 16 -c 1000 -d -H \u0027Conexi\u00f3n: Cerrar\u0027 - volcar continuamente las conexiones SMC-D en paralelo: watch -n 1 \u0027smcss -D\u0027 ERROR: desreferencia del puntero NULL del kernel, direcci\u00f3n: 00000000000000030 CPU: 2 PID: 7204 Comm: smcss Kdump: cargado Contaminado: GE 6.7.0+ #55 RIP: 0010:__smc_diag_dump.constprop.0+ 0x5e5/0x620 [smc_diag] Seguimiento de llamadas: ? __morir+0x24/0x70 ? page_fault_oops+0x66/0x150? exc_page_fault+0x69/0x140? asm_exc_page_fault+0x26/0x30? __smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag] ? __kmalloc_node_track_caller+0x35d/0x430 ? __alloc_skb+0x77/0x170 smc_diag_dump_proto+0xd0/0xf0 [smc_diag] smc_diag_dump+0x26/0x60 [smc_diag] netlink_dump+0x19f/0x320 __netlink_dump_start+0x1dc/0x300 smc_diag_handler_dump+ 0x6a/0x80 [smc_diag] ? __pfx_smc_diag_dump+0x10/0x10 [smc_diag] sock_diag_rcv_msg+0x121/0x140 ? __pfx_sock_diag_rcv_msg+0x10/0x10 netlink_rcv_skb+0x5a/0x110 sock_diag_rcv+0x28/0x40 netlink_unicast+0x22a/0x330 netlink_sendmsg+0x1f8/0x420 __sock_sendmsg+0xb0/0xc0 ____s ys_sendmsg+0x24e/0x300? copy_msghdr_from_user+0x62/0x80 ___sys_sendmsg+0x7c/0xd0 ? __do_fault+0x34/0x160? do_read_fault+0x5f/0x100? do_fault+0xb0/0x110? __handle_mm_fault+0x2b0/0x6c0 __sys_sendmsg+0x4d/0x80 do_syscall_64+0x69/0x180 Entry_SYSCALL_64_after_hwframe+0x6e/0x76 Es posible que la conexi\u00f3n est\u00e9 en proceso de establecerse cuando la volcamos. Se supone que la conexi\u00f3n ha sido registrada en un grupo de enlaces por smc_conn_create() pero rmb_desc a\u00fan no ha sido inicializado por smc_buf_create(), lo que provoca el acceso ilegal a conn-\u0026gt;rmb_desc. As\u00ed que solucionelo comprobando antes del volcado."
}
],
"id": "CVE-2024-26615",
"lastModified": "2026-06-17T07:17:54.063",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-26615",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T15:57:17.586367Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-03-11T18:15:19.337",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/1fea9969b81c67d0cb1611d1b8b7d19049d937be"
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},
{
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},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
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],
"url": "https://git.kernel.org/stable/c/dbc153fd3c142909e564bb256da087e13fbf239c"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
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},
{
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"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/27aea64838914c6122db5b8bd4bed865c9736f22"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/68b888d51ac82f2b96bf5e077a31d76afcdef25a"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/6994dba06321e3c48fdad0ba796a063d9d82183a"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/8f3f9186e5bb96a9c9654c41653210e3ea7e48a6"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/a164c2922675d7051805cdaf2b07daffe44f20d9"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/dbc153fd3c142909e564bb256da087e13fbf239c"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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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
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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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