UnratedFix available
RDMA/irdma: Fix kernel stack leak in irdma_create_user_ah()
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Fix kernel stack leak in irdma_create_user_ah() struct irdma_create_ah_resp { // 8 bytes, no padding __u32 ah_id; // offset 0 - SET (uresp.ah_id = ah->sc_ah.ah_info.ah_idx) __u8 rsvd[4]; // offset 4 - NEVER SET <- LEAK }; rsvd[4]: 4 bytes of stack memory leaked unconditionally. Only ah_id is assigned before ib_respond_udata(). The reserved members of the structure were not zeroed.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.15.203, 6.1.167, 6.12.77, 6.18.17, 6.19.7, 6.6.130
- CVEs
- CVE-2026-23335
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 20:30 UTC · Revision 1
Source evidence
RDMA/irdma: Fix kernel stack leak in irdma_create_user_ah()
core-osv · Original sourcePublished 25 Mar 2026, 10:27 UTC
In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Fix kernel stack leak in irdma_create_user_ah() struct irdma_create_ah_resp { // 8 bytes, no padding __u32 ah_id; // offset 0 - SET (uresp.ah_id = ah->sc_ah.ah_info.ah_idx) __u8 rsvd[4]; // offset 4 - NEVER SET <- LEAK }; rsvd[4]: 4 bytes of stack memory leaked unconditionally. Only ah_id is assigned before ib_respond_udata(). The reserved members of the structure were not zeroed.
osv:CVE-2026-23335
Kernel
Fixed versions: 5.15.203, 6.1.167, 6.6.130, 6.12.77, 6.18.17, 6.19.7
Complete source record
{
"id": "77eb3c28c0e10aa5bf246141f26146f13037ac49aba7cc3fd4cae5c45cab6455",
"url": "https://osv.dev/vulnerability/CVE-2026-23335",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "RDMA/irdma: Fix kernel stack leak in irdma_create_user_ah()",
"summary": "In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Fix kernel stack leak in irdma_create_user_ah() struct irdma_create_ah_resp { // 8 bytes, no padding __u32 ah_id; // offset 0 - SET (uresp.ah_id = ah->sc_ah.ah_info.ah_idx) __u8 rsvd[4]; // offset 4 - NEVER SET <- LEAK }; rsvd[4]: 4 bytes of stack memory leaked unconditionally. Only ah_id is assigned before ib_respond_udata(). The reserved members of the structure were not zeroed.",
"evidence": "osv:CVE-2026-23335",
"products": [
{
"name": {
"value": "Kernel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
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"evidence": "/affected/1/ranges"
},
{
"value": "6.1.167",
"evidence": "/affected/1/ranges"
},
{
"value": "6.6.130",
"evidence": "/affected/1/ranges"
},
{
"value": "6.12.77",
"evidence": "/affected/1/ranges"
},
{
"value": "6.18.17",
"evidence": "/affected/1/ranges"
},
{
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}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CVE-2026-23335",
"aliases": [
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"affected": [
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{
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{
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],
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},
{
"ranges": [
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"type": "ECOSYSTEM",
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{
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{
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{
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{
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{
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"events": [
{
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{
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},
{
"type": "ECOSYSTEM",
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{
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{
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],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23335.json"
}
}
],
"modified": "2026-10-28T02:30:23.456373782Z",
"provider": "osv",
"references": [
"https://cert-portal.siemens.com/productcert/html/ssa-019113.html",
"https://cert-portal.siemens.com/productcert/html/ssa-082556.html",
"https://cert-portal.siemens.com/productcert/html/ssa-457936.html",
"https://git.kernel.org/stable/c/14b47c07c69930254f549a17ee245c80a65b1609",
"https://git.kernel.org/stable/c/1b1fac4c7a3ab7f52e9cfb91e5c91216646ca4d8",
"https://git.kernel.org/stable/c/1f70df004fdd944653013ccc2e1dfd472a693b46",
"https://git.kernel.org/stable/c/2fd37450d271d74b3847baed284f9cfdf198c6f8",
"https://git.kernel.org/stable/c/74586c6da9ea222a61c98394f2fc0a604748438c",
"https://git.kernel.org/stable/c/c9bd0007c4bdb7806bbd323287e50f9cf467c51a",
"https://git.kernel.org/stable/c/cfe962216c164fe2b1c1fb6ac925a7413f5abc84",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23335.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-23335",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23335.json"
}
},
"related_cves": [
{
"value": "CVE-2026-23335",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 489868,
"published_at": "2026-03-25T10:27:25.418+00:00"
}