CVE-2023-53342
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
net: marvell: prestera: fix handling IPv4 routes with nhid
Fix handling IPv4 routes referencing a nexthop via its id by replacing calls to fib_info_nh() with fib_info_nhc().
Trying to add an IPv4 route referencing a nextop via nhid:
triggers warnings when trying to handle the route:
Detalles técnicos trazas, registros y código del informe original
$ ip link set up swp5
$ ip a a 10.0.0.1/24 dev swp5
$ ip nexthop add dev swp5 id 20 via 10.0.0.2
$ ip route add 10.0.1.0/24 nhid 20
[ 528.805763] ------------[ cut here ]------------
[ 528.810437] WARNING: CPU: 3 PID: 53 at include/net/nexthop.h:468 __prestera_fi_is_direct+0x2c/0x68 [prestera]
[ 528.820434] Modules linked in: prestera_pci act_gact act_police sch_ingress cls_u32 cls_flower prestera arm64_delta_tn48m_dn_led(O) arm64_delta_tn48m_dn_cpld(O) [last unloaded: prestera_pci]
[ 528.837485] CPU: 3 PID: 53 Comm: kworker/u8:3 Tainted: G O 6.4.5 #1
[ 528.845178] Hardware name: delta,tn48m-dn (DT)
[ 528.849641] Workqueue: prestera_ordered __prestera_router_fib_event_work [prestera]
[ 528.857352] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 528.864347] pc : __prestera_fi_is_direct+0x2c/0x68 [prestera]
[ 528.870135] lr : prestera_k_arb_fib_evt+0xb20/0xd50 [prestera]
[ 528.876007] sp : ffff80000b20bc90
[ 528.879336] x29: ffff80000b20bc90 x28: 0000000000000000 x27: ffff0001374d3a48
[ 528.886510] x26: ffff000105604000 x25: ffff000134af8a28 x24: ffff0001374d3800
[ 528.893683] x23: ffff000101c89148 x22: ffff000101c89000 x21: ffff000101c89200
[ 528.900855] x20: ffff00013641fda0 x19: ffff800009d01088 x18: 0000000000000059
[ 528.908027] x17: 0000000000000277 x16: 0000000000000000 x15: 0000000000000000
[ 528.915198] x14: 0000000000000003 x13: 00000000000fe400 x12: 0000000000000000
[ 528.922371] x11: 0000000000000002 x10: 0000000000000aa0 x9 : ffff8000013d2020
[ 528.929543] x8 : 0000000000000018 x7 : 000000007b1703f8 x6 : 000000001ca72f86
[ 528.936715] x5 : 0000000033399ea7 x4 : 0000000000000000 x3 : ffff0001374d3acc
[ 528.943886] x2 : 0000000000000000 x1 : ffff00010200de00 x0 : ffff000134ae3f80
[ 528.951058] Call trace:
[ 528.953516] __prestera_fi_is_direct+0x2c/0x68 [prestera]
[ 528.958952] __prestera_router_fib_event_work+0x100/0x158 [prestera]
[ 528.965348] process_one_work+0x208/0x488
[ 528.969387] worker_thread+0x4c/0x430
[ 528.973068] kthread+0x120/0x138
[ 528.976313] ret_from_fork+0x10/0x20
[ 528.979909] ---[ end trace 0000000000000000 ]---
[ 528.984998] ------------[ cut here ]------------
[ 528.989645] WARNING: CPU: 3 PID: 53 at include/net/nexthop.h:468 __prestera_fi_is_direct+0x2c/0x68 [prestera]
[ 528.999628] Modules linked in: prestera_pci act_gact act_police sch_ingress cls_u32 cls_flower prestera arm64_delta_tn48m_dn_led(O) arm64_delta_tn48m_dn_cpld(O) [last unloaded: prestera_pci]
[ 529.016676] CPU: 3 PID: 53 Comm: kworker/u8:3 Tainted: G W O 6.4.5 #1
[ 529.024368] Hardware name: delta,tn48m-dn (DT)
[ 529.028830] Workqueue: prestera_ordered __prestera_router_fib_event_work [prestera]
[ 529.036539] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 529.043533] pc : __prestera_fi_is_direct+0x2c/0x68 [prestera]
[ 529.049318] lr : __prestera_k_arb_fc_apply+0x280/0x2f8 [prestera]
[ 529.055452] sp : ffff80000b20bc60
[ 529.058781] x29: ffff80000b20bc60 x28: 0000000000000000 x27: ffff0001374d3a48
[ 529.065953] x26: ffff000105604000 x25: ffff000134af8a28 x24: ffff0001374d3800
[ 529.073126] x23: ffff000101c89148 x22: ffff000101c89148 x21: ffff00013641fda0
[ 529.080299] x20: ffff000101c89000 x19: ffff000101c89020 x18: 0000000000000059
[ 529.087471] x17: 0000000000000277 x16: 0000000000000000 x15: 0000000000000000
[ 529.094642] x14: 0000000000000003 x13: 00000000000fe400 x12: 0000000000000000
[ 529.101814] x11: 0000000000000002 x10: 0000000000000aa0 x9 : ffff8000013cee80
[ 529.108985] x8 : 0000000000000018 x7 : 000000007b1703f8 x6
---truncated---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: 0.19%
- Percentil entre todas las CVEs puntuadas: 8
- 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 (1)
CWE
- NVD-CWE-noinfo
Referencias
JSON original (NVD)
Mostrar
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"timestamp": "2026-01-14T18:39:02.029523Z"
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{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"programFiles": [
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{
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"programFiles": [
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"published": "2025-09-17T15:15:37.393",
"references": [
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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{
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"tags": [
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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"tags": [
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: marvell: prestera: fix handling IPv4 routes with nhid\n\nFix handling IPv4 routes referencing a nexthop via its id by replacing\ncalls to fib_info_nh() with fib_info_nhc().\n\nTrying to add an IPv4 route referencing a nextop via nhid:\n\n $ ip link set up swp5\n $ ip a a 10.0.0.1/24 dev swp5\n $ ip nexthop add dev swp5 id 20 via 10.0.0.2\n $ ip route add 10.0.1.0/24 nhid 20\n\ntriggers warnings when trying to handle the route:\n\n[ 528.805763] ------------[ cut here ]------------\n[ 528.810437] WARNING: CPU: 3 PID: 53 at include/net/nexthop.h:468 __prestera_fi_is_direct+0x2c/0x68 [prestera]\n[ 528.820434] Modules linked in: prestera_pci act_gact act_police sch_ingress cls_u32 cls_flower prestera arm64_delta_tn48m_dn_led(O) arm64_delta_tn48m_dn_cpld(O) [last unloaded: prestera_pci]\n[ 528.837485] CPU: 3 PID: 53 Comm: kworker/u8:3 Tainted: G O 6.4.5 #1\n[ 528.845178] Hardware name: delta,tn48m-dn (DT)\n[ 528.849641] Workqueue: prestera_ordered __prestera_router_fib_event_work [prestera]\n[ 528.857352] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[ 528.864347] pc : __prestera_fi_is_direct+0x2c/0x68 [prestera]\n[ 528.870135] lr : prestera_k_arb_fib_evt+0xb20/0xd50 [prestera]\n[ 528.876007] sp : ffff80000b20bc90\n[ 528.879336] x29: ffff80000b20bc90 x28: 0000000000000000 x27: ffff0001374d3a48\n[ 528.886510] x26: ffff000105604000 x25: ffff000134af8a28 x24: ffff0001374d3800\n[ 528.893683] x23: ffff000101c89148 x22: ffff000101c89000 x21: ffff000101c89200\n[ 528.900855] x20: ffff00013641fda0 x19: ffff800009d01088 x18: 0000000000000059\n[ 528.908027] x17: 0000000000000277 x16: 0000000000000000 x15: 0000000000000000\n[ 528.915198] x14: 0000000000000003 x13: 00000000000fe400 x12: 0000000000000000\n[ 528.922371] x11: 0000000000000002 x10: 0000000000000aa0 x9 : ffff8000013d2020\n[ 528.929543] x8 : 0000000000000018 x7 : 000000007b1703f8 x6 : 000000001ca72f86\n[ 528.936715] x5 : 0000000033399ea7 x4 : 0000000000000000 x3 : ffff0001374d3acc\n[ 528.943886] x2 : 0000000000000000 x1 : ffff00010200de00 x0 : ffff000134ae3f80\n[ 528.951058] Call trace:\n[ 528.953516] __prestera_fi_is_direct+0x2c/0x68 [prestera]\n[ 528.958952] __prestera_router_fib_event_work+0x100/0x158 [prestera]\n[ 528.965348] process_one_work+0x208/0x488\n[ 528.969387] worker_thread+0x4c/0x430\n[ 528.973068] kthread+0x120/0x138\n[ 528.976313] ret_from_fork+0x10/0x20\n[ 528.979909] ---[ end trace 0000000000000000 ]---\n[ 528.984998] ------------[ cut here ]------------\n[ 528.989645] WARNING: CPU: 3 PID: 53 at include/net/nexthop.h:468 __prestera_fi_is_direct+0x2c/0x68 [prestera]\n[ 528.999628] Modules linked in: prestera_pci act_gact act_police sch_ingress cls_u32 cls_flower prestera arm64_delta_tn48m_dn_led(O) arm64_delta_tn48m_dn_cpld(O) [last unloaded: prestera_pci]\n[ 529.016676] CPU: 3 PID: 53 Comm: kworker/u8:3 Tainted: G W O 6.4.5 #1\n[ 529.024368] Hardware name: delta,tn48m-dn (DT)\n[ 529.028830] Workqueue: prestera_ordered __prestera_router_fib_event_work [prestera]\n[ 529.036539] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[ 529.043533] pc : __prestera_fi_is_direct+0x2c/0x68 [prestera]\n[ 529.049318] lr : __prestera_k_arb_fc_apply+0x280/0x2f8 [prestera]\n[ 529.055452] sp : ffff80000b20bc60\n[ 529.058781] x29: ffff80000b20bc60 x28: 0000000000000000 x27: ffff0001374d3a48\n[ 529.065953] x26: ffff000105604000 x25: ffff000134af8a28 x24: ffff0001374d3800\n[ 529.073126] x23: ffff000101c89148 x22: ffff000101c89148 x21: ffff00013641fda0\n[ 529.080299] x20: ffff000101c89000 x19: ffff000101c89020 x18: 0000000000000059\n[ 529.087471] x17: 0000000000000277 x16: 0000000000000000 x15: 0000000000000000\n[ 529.094642] x14: 0000000000000003 x13: 00000000000fe400 x12: 0000000000000000\n[ 529.101814] x11: 0000000000000002 x10: 0000000000000aa0 x9 : ffff8000013cee80\n[ 529.108985] x8 : 0000000000000018 x7 : 000000007b1703f8 x6 \n---truncated---"
}
],
"lastModified": "2026-06-17T06:44:56.753",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C2750BBF-9C5F-41A5-A241-E027F31FA01C",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}