CVE-2025-23154
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: io_uring/net: fix io_req_post_cqe abuse by send bundle [ 114.987980][ T5313] WARNING: CPU: 6 PID: 5313 at io_uring/io_uring.c:872 io_req_post_cqe+0x12e/0x4f0 [ 114.991597][ T5313] RIP: 0010:io_req_post_cqe+0x12e/0x4f0 [ 115.001880][ T5313] Call Trace: [ 115.002222][ T5313] <TASK> [ 115.007813][ T5313] io_send+0x4fe/0x10f0 [ 115.009317][ T5313] io_issue_sqe+0x1a6/0x1740 [ 115.012094][ T5313] io_wq_submit_work+0x38b/0xed0 [ 115.013223][ T5313] io_worker_handle_work+0x62a/0x1600 [ 115.013876][ T5313] io_wq_worker+0x34f/0xdf0 As the comment states, io_req_post_cqe() should only be used by multishot requests, i.e. REQ_F_APOLL_MULTISHOT, which bundled sends are not. Add a flag signifying whether a request wants to post multiple CQEs. Eventually REQ_F_APOLL_MULTISHOT should imply the new flag, but that's left out for simplicity.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-05-01 13:15:51.310000
Last modified
2026-11-05 21:17:50.857000
View original CVE JSON
{
"id": "CVE-2025-23154",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-05-01T13:15:51.310",
"lastModified": "2026-11-05T21:17:50.857",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/net: fix io_req_post_cqe abuse by send bundle\n\n[ 114.987980][ T5313] WARNING: CPU: 6 PID: 5313 at io_uring/io_uring.c:872 io_req_post_cqe+0x12e/0x4f0\n[ 114.991597][ T5313] RIP: 0010:io_req_post_cqe+0x12e/0x4f0\n[ 115.001880][ T5313] Call Trace:\n[ 115.002222][ T5313] <TASK>\n[ 115.007813][ T5313] io_send+0x4fe/0x10f0\n[ 115.009317][ T5313] io_issue_sqe+0x1a6/0x1740\n[ 115.012094][ T5313] io_wq_submit_work+0x38b/0xed0\n[ 115.013223][ T5313] io_worker_handle_work+0x62a/0x1600\n[ 115.013876][ T5313] io_wq_worker+0x34f/0xdf0\n\nAs the comment states, io_req_post_cqe() should only be used by\nmultishot requests, i.e. REQ_F_APOLL_MULTISHOT, which bundled sends are\nnot. Add a flag signifying whether a request wants to post multiple\nCQEs. Eventually REQ_F_APOLL_MULTISHOT should imply the new flag, but\nthat's left out for simplicity."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: io_uring/net: corrección del abuso de io_req_post_cqe por parte del paquete de envío [ 114.987980][ T5313] ADVERTENCIA: CPU: 6 PID: 5313 en io_uring/io_uring.c:872 io_req_post_cqe+0x12e/0x4f0 [ 114.991597][ T5313] RIP: 0010:io_req_post_cqe+0x12e/0x4f0 [ 115.001880][ T5313] Rastreo de llamadas: [ 115.002222][ T5313] [ 115.007813][ T5313] io_send+0x4fe/0x10f0 [ 115.009317][ T5313] io_issue_sqe+0x1a6/0x1740 [ 115.012094][ T5313] io_wq_submit_work+0x38b/0xed0 [ 115.013223][ T5313] io_worker_handle_work+0x62a/0x1600 [ 115.013876][ T5313] io_wq_worker+0x34f/0xdf0 Como se indica en el comentario, io_req_post_cqe() solo debe usarse en solicitudes multienvío, como REQ_F_APOLL_MULTISHOT, que no se usan en envíos agrupados. Agregue un indicador que indique si una solicitud desea publicar múltiples CQE. Finalmente, REQ_F_APOLL_MULTISHOT debería implicar la nueva bandera, pero esto se omite para simplificar."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"include/linux/io_uring_types.h",
"io_uring/io_uring.c",
"io_uring/net.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
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"versionType": "git",
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"versionType": "git",
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{
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{
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},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"include/linux/io_uring_types.h",
"io_uring/io_uring.c",
"io_uring/net.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "6.10",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.10",
"versionType": "semver",
"status": "unaffected"
},
{
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"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
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"lessThanOrEqual": "6.13.*",
"versionType": "semver",
"status": "unaffected"
},
{
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"lessThanOrEqual": "6.14.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.15",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-11-05T20:39:45.990568Z",
"id": "CVE-2025-23154",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"matchCriteriaId": "1C4C5DA0-08FD-40E1-8218-A8B070BAEC47"
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{
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{
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"references": [
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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}