CVE-2026-43157 (GCVE-0-2026-43157)
Vulnerability from cvelistv5 – Published: 2026-05-06 11:27 – Updated: 2026-05-06 11:27
VLAI?
Title
octeontx2-af: CGX: fix bitmap leaks
Summary
In the Linux kernel, the following vulnerability has been resolved:
octeontx2-af: CGX: fix bitmap leaks
The RX/TX flow-control bitmaps (rx_fc_pfvf_bmap and tx_fc_pfvf_bmap)
are allocated by cgx_lmac_init() but never freed in cgx_lmac_exit().
Unbinding and rebinding the driver therefore triggers kmemleak:
unreferenced object (size 16):
backtrace:
rvu_alloc_bitmap
cgx_probe
Free both bitmaps during teardown.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
e740003874edc13e468d19233f99787bedb4bb8e , < ad8a13a45c5c24d0d32de9a1c3fd58498a675ece
(git)
Affected: e740003874edc13e468d19233f99787bedb4bb8e , < 013ac469596a0b8671e62d89c89ae0bd46bbe667 (git) Affected: e740003874edc13e468d19233f99787bedb4bb8e , < ccef79af58b43787c25710c9da96651c6ddfe50f (git) Affected: e740003874edc13e468d19233f99787bedb4bb8e , < 6d389382ee655128056fbdab86baad8495ffbf33 (git) Affected: e740003874edc13e468d19233f99787bedb4bb8e , < ccca14bbdcc25829d355b9f4d3249f43dadb71c1 (git) Affected: e740003874edc13e468d19233f99787bedb4bb8e , < 3def995c4ede842adf509c410e92d09a0cedc965 (git) |
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{
"containers": {
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"affected": [
{
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"product": "Linux",
"programFiles": [
"drivers/net/ethernet/marvell/octeontx2/af/cgx.c"
],
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}
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],
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"vendor": "Linux",
"versions": [
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{
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"version": "0",
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{
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"status": "unaffected",
"version": "6.1.165",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.6.128",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.75",
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},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.16",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.19.*",
"status": "unaffected",
"version": "6.19.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-af: CGX: fix bitmap leaks\n\nThe RX/TX flow-control bitmaps (rx_fc_pfvf_bmap and tx_fc_pfvf_bmap)\nare allocated by cgx_lmac_init() but never freed in cgx_lmac_exit().\nUnbinding and rebinding the driver therefore triggers kmemleak:\n\n unreferenced object (size 16):\n backtrace:\n rvu_alloc_bitmap\n cgx_probe\n\nFree both bitmaps during teardown."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-06T11:27:37.185Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"url": "https://git.kernel.org/stable/c/ad8a13a45c5c24d0d32de9a1c3fd58498a675ece"
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{
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{
"url": "https://git.kernel.org/stable/c/ccef79af58b43787c25710c9da96651c6ddfe50f"
},
{
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},
{
"url": "https://git.kernel.org/stable/c/ccca14bbdcc25829d355b9f4d3249f43dadb71c1"
},
{
"url": "https://git.kernel.org/stable/c/3def995c4ede842adf509c410e92d09a0cedc965"
}
],
"title": "octeontx2-af: CGX: fix bitmap leaks",
"x_generator": {
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}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-43157",
"datePublished": "2026-05-06T11:27:37.185Z",
"dateReserved": "2026-05-01T14:12:55.990Z",
"dateUpdated": "2026-05-06T11:27:37.185Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-43157",
"date": "2026-05-08",
"epss": "0.00024",
"percentile": "0.06984"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-43157\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-05-06T12:16:33.563\",\"lastModified\":\"2026-05-06T13:07:51.607\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nocteontx2-af: CGX: fix bitmap leaks\\n\\nThe RX/TX flow-control bitmaps (rx_fc_pfvf_bmap and tx_fc_pfvf_bmap)\\nare allocated by cgx_lmac_init() but never freed in cgx_lmac_exit().\\nUnbinding and rebinding the driver therefore triggers kmemleak:\\n\\n unreferenced object (size 16):\\n backtrace:\\n rvu_alloc_bitmap\\n cgx_probe\\n\\nFree both bitmaps during teardown.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/013ac469596a0b8671e62d89c89ae0bd46bbe667\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3def995c4ede842adf509c410e92d09a0cedc965\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6d389382ee655128056fbdab86baad8495ffbf33\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ad8a13a45c5c24d0d32de9a1c3fd58498a675ece\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ccca14bbdcc25829d355b9f4d3249f43dadb71c1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ccef79af58b43787c25710c9da96651c6ddfe50f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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