cve-2025-38083
Vulnerability from cvelistv5
Published
2025-06-20 11:21
Modified
2025-06-27 10:21
Severity ?
EPSS score ?
Summary
net_sched: prio: fix a race in prio_tune()
References
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/sched/sch_prio.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "53d11560e957d53ee87a0653d258038ce12361b7",
"status": "affected",
"version": "7b8e0b6e659983154c8d7e756cdb833d89a3d4d7",
"versionType": "git"
},
{
"lessThan": "4483d8b9127591c60c4eb789d6cab953bc4522a9",
"status": "affected",
"version": "7b8e0b6e659983154c8d7e756cdb833d89a3d4d7",
"versionType": "git"
},
{
"lessThan": "20f68e6a9e41693cb0e55e5b9ebbcb40983a4b8f",
"status": "affected",
"version": "7b8e0b6e659983154c8d7e756cdb833d89a3d4d7",
"versionType": "git"
},
{
"lessThan": "3aaa7c01cf19d9b9bb64b88b65c3a6fd05da2eb4",
"status": "affected",
"version": "7b8e0b6e659983154c8d7e756cdb833d89a3d4d7",
"versionType": "git"
},
{
"lessThan": "46c15c9d0f65c9ba857d63f53264f4b17e8a715f",
"status": "affected",
"version": "7b8e0b6e659983154c8d7e756cdb833d89a3d4d7",
"versionType": "git"
},
{
"lessThan": "e3f6745006dc9423d2b065b90f191cfa11b1b584",
"status": "affected",
"version": "7b8e0b6e659983154c8d7e756cdb833d89a3d4d7",
"versionType": "git"
},
{
"lessThan": "93f9eeb678d4c9c1abf720b3615fa8299a490845",
"status": "affected",
"version": "7b8e0b6e659983154c8d7e756cdb833d89a3d4d7",
"versionType": "git"
},
{
"lessThan": "d35acc1be3480505b5931f17e4ea9b7617fea4d3",
"status": "affected",
"version": "7b8e0b6e659983154c8d7e756cdb833d89a3d4d7",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/sched/sch_prio.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.0"
},
{
"lessThan": "5.0",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.295",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.239",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.186",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.142",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.94",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.34",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"version": "6.15.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.16-rc2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.295",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.239",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.186",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.142",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.94",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.34",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.15.3",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16-rc2",
"versionStartIncluding": "5.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet_sched: prio: fix a race in prio_tune()\n\nGerrard Tai reported a race condition in PRIO, whenever SFQ perturb timer\nfires at the wrong time.\n\nThe race is as follows:\n\nCPU 0 CPU 1\n[1]: lock root\n[2]: qdisc_tree_flush_backlog()\n[3]: unlock root\n |\n | [5]: lock root\n | [6]: rehash\n | [7]: qdisc_tree_reduce_backlog()\n |\n[4]: qdisc_put()\n\nThis can be abused to underflow a parent\u0027s qlen.\n\nCalling qdisc_purge_queue() instead of qdisc_tree_flush_backlog()\nshould fix the race, because all packets will be purged from the qdisc\nbefore releasing the lock."
}
],
"providerMetadata": {
"dateUpdated": "2025-06-27T10:21:23.980Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/53d11560e957d53ee87a0653d258038ce12361b7"
},
{
"url": "https://git.kernel.org/stable/c/4483d8b9127591c60c4eb789d6cab953bc4522a9"
},
{
"url": "https://git.kernel.org/stable/c/20f68e6a9e41693cb0e55e5b9ebbcb40983a4b8f"
},
{
"url": "https://git.kernel.org/stable/c/3aaa7c01cf19d9b9bb64b88b65c3a6fd05da2eb4"
},
{
"url": "https://git.kernel.org/stable/c/46c15c9d0f65c9ba857d63f53264f4b17e8a715f"
},
{
"url": "https://git.kernel.org/stable/c/e3f6745006dc9423d2b065b90f191cfa11b1b584"
},
{
"url": "https://git.kernel.org/stable/c/93f9eeb678d4c9c1abf720b3615fa8299a490845"
},
{
"url": "https://git.kernel.org/stable/c/d35acc1be3480505b5931f17e4ea9b7617fea4d3"
}
],
"title": "net_sched: prio: fix a race in prio_tune()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38083",
"datePublished": "2025-06-20T11:21:51.554Z",
"dateReserved": "2025-04-16T04:51:23.981Z",
"dateUpdated": "2025-06-27T10:21:23.980Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-38083\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-06-20T12:15:21.470\",\"lastModified\":\"2025-06-27T11:15:25.267\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet_sched: prio: fix a race in prio_tune()\\n\\nGerrard Tai reported a race condition in PRIO, whenever SFQ perturb timer\\nfires at the wrong time.\\n\\nThe race is as follows:\\n\\nCPU 0 CPU 1\\n[1]: lock root\\n[2]: qdisc_tree_flush_backlog()\\n[3]: unlock root\\n |\\n | [5]: lock root\\n | [6]: rehash\\n | [7]: qdisc_tree_reduce_backlog()\\n |\\n[4]: qdisc_put()\\n\\nThis can be abused to underflow a parent\u0027s qlen.\\n\\nCalling qdisc_purge_queue() instead of qdisc_tree_flush_backlog()\\nshould fix the race, because all packets will be purged from the qdisc\\nbefore releasing the lock.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net_sched: prio: corrige una ejecuci\u00f3n en prio_tune() Gerrard Tai inform\u00f3 una condici\u00f3n de ejecuci\u00f3n en PRIO, siempre que el temporizador de perturbaci\u00f3n SFQ se dispara en el momento equivocado. La ejecuci\u00f3n es la siguiente: CPU 0 CPU 1 [1]: ra\u00edz de bloqueo [2]: qdisc_tree_flush_backlog() [3]: ra\u00edz de desbloqueo | | [5]: ra\u00edz de bloqueo | [6]: rehash | [7]: qdisc_tree_reduce_backlog() | [4]: qdisc_put() Esto se puede abusar para desbordar el qlen de un padre. Llamar a qdisc_purge_queue() en lugar de qdisc_tree_flush_backlog() deber\u00eda corregir la ejecuci\u00f3n, porque todos los paquetes se purgar\u00e1n del qdisc antes de liberar el bloqueo.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/20f68e6a9e41693cb0e55e5b9ebbcb40983a4b8f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3aaa7c01cf19d9b9bb64b88b65c3a6fd05da2eb4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4483d8b9127591c60c4eb789d6cab953bc4522a9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/46c15c9d0f65c9ba857d63f53264f4b17e8a715f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/53d11560e957d53ee87a0653d258038ce12361b7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/93f9eeb678d4c9c1abf720b3615fa8299a490845\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d35acc1be3480505b5931f17e4ea9b7617fea4d3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e3f6745006dc9423d2b065b90f191cfa11b1b584\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
Loading...
Loading...
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.