CVE-2025-38683
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
hv_netvsc: Fix panic during namespace deletion with VF
The existing code move the VF NIC to new namespace when NETDEV_REGISTER is received on netvsc NIC. During deletion of the namespace, default_device_exit_batch() >> default_device_exit_net() is called. When netvsc NIC is moved back and registered to the default namespace, it automatically brings VF NIC back to the default namespace. This will cause the default_device_exit_net() >> for_each_netdev_safe loop unable to detect the list end, and hit NULL ptr:
To fix it, move the ns change to a workqueue, and take rtnl_lock to avoid changing the netdev list when default_device_exit_net() is using it.
Detalles técnicos trazas, registros y código del informe original
[ 231.449420] mana 7870:00:00.0 enP30832s1: Moved VF to namespace with: eth0 [ 231.449656] BUG: kernel NULL pointer dereference, address: 0000000000000010 [ 231.450246] #PF: supervisor read access in kernel mode [ 231.450579] #PF: error_code(0x0000) - not-present page [ 231.450916] PGD 17b8a8067 P4D 0 [ 231.451163] Oops: Oops: 0000 [#1] SMP NOPTI [ 231.451450] CPU: 82 UID: 0 PID: 1394 Comm: kworker/u768:1 Not tainted 6.16.0-rc4+ #3 VOLUNTARY [ 231.452042] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 11/21/2024 [ 231.452692] Workqueue: netns cleanup_net [ 231.452947] RIP: 0010:default_device_exit_batch+0x16c/0x3f0 [ 231.453326] Code: c0 0c f5 b3 e8 d5 db fe ff 48 85 c0 74 15 48 c7 c2 f8 fd ca b2 be 10 00 00 00 48 8d 7d c0 e8 7b 77 25 00 49 8b 86 28 01 00 00 <48> 8b 50 10 4c 8b 2a 4c 8d 62 f0 49 83 ed 10 4c 39 e0 0f 84 d6 00 [ 231.454294] RSP: 0018:ff75fc7c9bf9fd00 EFLAGS: 00010246 [ 231.454610] RAX: 0000000000000000 RBX: 0000000000000002 RCX: 61c8864680b583eb [ 231.455094] RDX: ff1fa9f71462d800 RSI: ff75fc7c9bf9fd38 RDI: 0000000030766564 [ 231.455686] RBP: ff75fc7c9bf9fd78 R08: 0000000000000000 R09: 0000000000000000 [ 231.456126] R10: 0000000000000001 R11: 0000000000000004 R12: ff1fa9f70088e340 [ 231.456621] R13: ff1fa9f70088e340 R14: ffffffffb3f50c20 R15: ff1fa9f7103e6340 [ 231.457161] FS: 0000000000000000(0000) GS:ff1faa6783a08000(0000) knlGS:0000000000000000 [ 231.457707] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 231.458031] CR2: 0000000000000010 CR3: 0000000179ab2006 CR4: 0000000000b73ef0 [ 231.458434] Call Trace: [ 231.458600] <TASK> [ 231.458777] ops_undo_list+0x100/0x220 [ 231.459015] cleanup_net+0x1b8/0x300 [ 231.459285] process_one_work+0x184/0x340
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.18%
- Percentil entre todas las CVEs puntuadas: 6
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (2)
CWE
- CWE-476
Referencias
- https://git.kernel.org/stable/c/2a70cbd1aef8b8be39992ab7b776ce1390091774
- https://git.kernel.org/stable/c/33caa208dba6fa639e8a92fd0c8320b652e5550c
- https://git.kernel.org/stable/c/3467c4ebb334658c6fcf3eabb64a6e8b2135e010
- https://git.kernel.org/stable/c/3ca41ab55d23a0aa71661a5a56a8f06c11db90dc
- https://git.kernel.org/stable/c/4293f6c5ccf735b26afeb6825def14d830e0367b
- https://git.kernel.org/stable/c/4eff1e57a8ef98d70451b94e8437e458b27dd234
- https://git.kernel.org/stable/c/5276896e6923ebe8c68573779d784aaf7d987cce
- https://git.kernel.org/stable/c/d036104947176d030bec64792d54e1b4f4c7f318
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-38683",
"cveTags": [],
"metrics": {
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3eb6aa870057da9f1304db660f68b9c2eb7e856d",
"lessThan": "3ca41ab55d23a0aa71661a5a56a8f06c11db90dc",
"versionType": "git"
},
{
"status": "affected",
"version": "b7a396f76ada277d049558db648389456458af65",
"lessThan": "3467c4ebb334658c6fcf3eabb64a6e8b2135e010",
"versionType": "git"
},
{
"status": "affected",
"version": "4faa6e3e66b3251eb4bf5761d2f3f0f14095aaca",
"lessThan": "4eff1e57a8ef98d70451b94e8437e458b27dd234",
"versionType": "git"
},
{
"status": "affected",
"version": "62c85b9a0dd7471a362170323e1211ad98ff7b4b",
"lessThan": "2a70cbd1aef8b8be39992ab7b776ce1390091774",
"versionType": "git"
},
{
"status": "affected",
"version": "4c262801ea60c518b5bebc22a09f5b78b3147da2",
"lessThan": "d036104947176d030bec64792d54e1b4f4c7f318",
"versionType": "git"
},
{
"status": "affected",
"version": "4c262801ea60c518b5bebc22a09f5b78b3147da2",
"lessThan": "5276896e6923ebe8c68573779d784aaf7d987cce",
"versionType": "git"
},
{
"status": "affected",
"version": "4c262801ea60c518b5bebc22a09f5b78b3147da2",
"lessThan": "4293f6c5ccf735b26afeb6825def14d830e0367b",
"versionType": "git"
},
{
"status": "affected",
"version": "4c262801ea60c518b5bebc22a09f5b78b3147da2",
"lessThan": "33caa208dba6fa639e8a92fd0c8320b652e5550c",
"versionType": "git"
},
{
"status": "affected",
"version": "7abd221a55a61b6b2bf0e80f850bfc0ae75c7e01",
"versionType": "git"
},
{
"status": "affected",
"version": "31a38a908c98aebc7a1104dab5f1ba199f234b7b",
"versionType": "git"
},
{
"status": "affected",
"version": "04d748d4bd2d86739b159563f257e3dc5492c88d",
"versionType": "git"
},
{
"status": "affected",
"version": "5.10.229",
"lessThan": "5.10.241",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.15.170",
"lessThan": "5.15.190",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.1.115",
"lessThan": "6.1.149",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.6.59",
"lessThan": "6.6.103",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.19.323",
"lessThan": "4.20",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.4.285",
"lessThan": "5.5",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.11.6",
"lessThan": "6.12",
"versionType": "semver"
}
],
"programFiles": [
"drivers/net/hyperv/hyperv_net.h",
"drivers/net/hyperv/netvsc_drv.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.12"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.12",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.241",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.190",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.149",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.103",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.43",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.15.11",
"versionType": "semver",
"lessThanOrEqual": "6.15.*"
},
{
"status": "unaffected",
"version": "6.16.2",
"versionType": "semver",
"lessThanOrEqual": "6.16.*"
},
{
"status": "unaffected",
"version": "6.17",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/hyperv/hyperv_net.h",
"drivers/net/hyperv/netvsc_drv.c"
],
"defaultStatus": "affected"
}
]
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"affectedData": [
{
"vendor": "Siemens",
"product": "SIMATIC CN 4100",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "V5.0",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
}
]
}
],
"published": "2025-09-04T16:15:36.047",
"references": [
{
"url": "https://git.kernel.org/stable/c/2a70cbd1aef8b8be39992ab7b776ce1390091774",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/33caa208dba6fa639e8a92fd0c8320b652e5550c",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/3467c4ebb334658c6fcf3eabb64a6e8b2135e010",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/3ca41ab55d23a0aa71661a5a56a8f06c11db90dc",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/4293f6c5ccf735b26afeb6825def14d830e0367b",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/4eff1e57a8ef98d70451b94e8437e458b27dd234",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/5276896e6923ebe8c68573779d784aaf7d987cce",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/d036104947176d030bec64792d54e1b4f4c7f318",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html",
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-476"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhv_netvsc: Fix panic during namespace deletion with VF\n\nThe existing code move the VF NIC to new namespace when NETDEV_REGISTER is\nreceived on netvsc NIC. During deletion of the namespace,\ndefault_device_exit_batch() >> default_device_exit_net() is called. When\nnetvsc NIC is moved back and registered to the default namespace, it\nautomatically brings VF NIC back to the default namespace. This will cause\nthe default_device_exit_net() >> for_each_netdev_safe loop unable to detect\nthe list end, and hit NULL ptr:\n\n[ 231.449420] mana 7870:00:00.0 enP30832s1: Moved VF to namespace with: eth0\n[ 231.449656] BUG: kernel NULL pointer dereference, address: 0000000000000010\n[ 231.450246] #PF: supervisor read access in kernel mode\n[ 231.450579] #PF: error_code(0x0000) - not-present page\n[ 231.450916] PGD 17b8a8067 P4D 0\n[ 231.451163] Oops: Oops: 0000 [#1] SMP NOPTI\n[ 231.451450] CPU: 82 UID: 0 PID: 1394 Comm: kworker/u768:1 Not tainted 6.16.0-rc4+ #3 VOLUNTARY\n[ 231.452042] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 11/21/2024\n[ 231.452692] Workqueue: netns cleanup_net\n[ 231.452947] RIP: 0010:default_device_exit_batch+0x16c/0x3f0\n[ 231.453326] Code: c0 0c f5 b3 e8 d5 db fe ff 48 85 c0 74 15 48 c7 c2 f8 fd ca b2 be 10 00 00 00 48 8d 7d c0 e8 7b 77 25 00 49 8b 86 28 01 00 00 <48> 8b 50 10 4c 8b 2a 4c 8d 62 f0 49 83 ed 10 4c 39 e0 0f 84 d6 00\n[ 231.454294] RSP: 0018:ff75fc7c9bf9fd00 EFLAGS: 00010246\n[ 231.454610] RAX: 0000000000000000 RBX: 0000000000000002 RCX: 61c8864680b583eb\n[ 231.455094] RDX: ff1fa9f71462d800 RSI: ff75fc7c9bf9fd38 RDI: 0000000030766564\n[ 231.455686] RBP: ff75fc7c9bf9fd78 R08: 0000000000000000 R09: 0000000000000000\n[ 231.456126] R10: 0000000000000001 R11: 0000000000000004 R12: ff1fa9f70088e340\n[ 231.456621] R13: ff1fa9f70088e340 R14: ffffffffb3f50c20 R15: ff1fa9f7103e6340\n[ 231.457161] FS: 0000000000000000(0000) GS:ff1faa6783a08000(0000) knlGS:0000000000000000\n[ 231.457707] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 231.458031] CR2: 0000000000000010 CR3: 0000000179ab2006 CR4: 0000000000b73ef0\n[ 231.458434] Call Trace:\n[ 231.458600] <TASK>\n[ 231.458777] ops_undo_list+0x100/0x220\n[ 231.459015] cleanup_net+0x1b8/0x300\n[ 231.459285] process_one_work+0x184/0x340\n\nTo fix it, move the ns change to a workqueue, and take rtnl_lock to avoid\nchanging the netdev list when default_device_exit_net() is using it."
}
],
"lastModified": "2026-06-17T09:17:39.137",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "463063B3-3A9A-420D-A07B-46284CE30207",
"versionEndExcluding": "4.20",
"versionStartIncluding": "4.19.323"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0F89CEF5-BEBB-4C4B-925A-D5644DDD9764",
"versionEndExcluding": "5.5",
"versionStartIncluding": "5.4.285"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0BEE7BE4-DD51-4965-BE45-9AA93668961A",
"versionEndExcluding": "5.10.241",
"versionStartIncluding": "5.10.229"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5DDB0CCE-5986-4161-849C-DAAC9C143FF7",
"versionEndExcluding": "5.15.190",
"versionStartIncluding": "5.15.170"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "05BCB5D7-DADF-4EFF-8A79-2747786F5D5D",
"versionEndExcluding": "6.1.149",
"versionStartIncluding": "6.1.115"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "72F4746B-181A-4551-881E-A3337078319E",
"versionEndExcluding": "6.6.103",
"versionStartIncluding": "6.6.59"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EC327455-C86D-4E78-8BC8-2E5301DD5835",
"versionEndExcluding": "6.12",
"versionStartIncluding": "6.11.6"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "76C98B07-4B8E-42CC-ABB3-BB451A38D280",
"versionEndExcluding": "6.12.43",
"versionStartIncluding": "6.12.1"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BC242347-F722-43AE-B910-BE0B22386977",
"versionEndExcluding": "6.15.11",
"versionStartIncluding": "6.13"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BD7C087D-2415-4521-B624-30003352F899",
"versionEndExcluding": "6.16.2",
"versionStartIncluding": "6.16"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0E698080-7669-4132-8817-4C674EEBCE54"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "24DBE6C7-2AAE-4818-AED2-E131F153D2FA"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc6:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "24B88717-53F5-42AA-9B72-14C707639E3F"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc7:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1EF8CD82-1EAE-4254-9545-F85AB94CF90F"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "327D22EF-390B-454C-BD31-2ED23C998A1C"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}