{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-53342", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-16T16:08:59.565Z", "datePublished": "2025-09-17T14:56:35.574Z", "dateUpdated": "2026-05-11T19:43:05.663Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:43:05.663Z" }, "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---" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/marvell/prestera/prestera_router.c" ], "versions": [ { "version": "396b80cb5cc8006a488ea25ef84fae245dc1b43c", "lessThan": "a3e5f3b7f25d7b90f3b76d98a946fec6e5f79216", "status": "affected", "versionType": "git" }, { "version": "396b80cb5cc8006a488ea25ef84fae245dc1b43c", "lessThan": "8373dca3c1f8a203cecebe3421dbe890c4f08e16", "status": "affected", "versionType": "git" }, { "version": "396b80cb5cc8006a488ea25ef84fae245dc1b43c", "lessThan": "2aa71b4b294ee2c3041d085404cea914be9b3225", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/marvell/prestera/prestera_router.c" ], "versions": [ { "version": "6.1", "status": "affected" }, { "version": "0", "lessThan": "6.1", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.46", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.4.11", "lessThanOrEqual": "6.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.5", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.1.46" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.4.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.5" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/a3e5f3b7f25d7b90f3b76d98a946fec6e5f79216" }, { "url": "https://git.kernel.org/stable/c/8373dca3c1f8a203cecebe3421dbe890c4f08e16" }, { "url": "https://git.kernel.org/stable/c/2aa71b4b294ee2c3041d085404cea914be9b3225" } ], "title": "net: marvell: prestera: fix handling IPv4 routes with nhid", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "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" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2023-53342", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2026-01-14T18:39:02.029523Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "description": "CWE-noinfo Not enough information" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-14T18:43:02.092Z" } } ] } }