CVE-2026-68135 (GCVE-0-2026-68135)
Vulnerability from cvelistv5
Published
2026-08-10 11:58
Modified
2026-08-19 16:29
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: hip04: fix RX buffer leak on build_skb failure
When build_skb() fails in hip04_rx_poll(), the driver jumps to the
refill path without releasing the current RX buffer and its DMA mapping.
Installing a replacement buffer then overwrites the slot references and
leaks both resources.
Keep the current slot intact and return budget so NAPI retries the same
buffer. Also free a newly allocated RX fragment when dma_map_single()
fails.
This issue was found by an in-house static analysis tool.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 701a0fd5231866db08cebcd502894699f49cb960 Version: 701a0fd5231866db08cebcd502894699f49cb960 Version: 701a0fd5231866db08cebcd502894699f49cb960 Version: 701a0fd5231866db08cebcd502894699f49cb960 Version: 701a0fd5231866db08cebcd502894699f49cb960 Version: 701a0fd5231866db08cebcd502894699f49cb960 Version: 701a0fd5231866db08cebcd502894699f49cb960 Version: 701a0fd5231866db08cebcd502894699f49cb960 |
||
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/hisilicon/hip04_eth.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"status": "affected",
"version": "701a0fd5231866db08cebcd502894699f49cb960",
"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
},
{
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"versionType": "git"
},
{
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},
{
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},
{
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}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/hisilicon/hip04_eth.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.5"
},
{
"lessThan": "4.5",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.265",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.216",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.183",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.148",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.101",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.42",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.265",
"versionStartIncluding": "4.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.216",
"versionStartIncluding": "4.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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},
{
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},
{
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.42",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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{
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hip04: fix RX buffer leak on build_skb failure\n\nWhen build_skb() fails in hip04_rx_poll(), the driver jumps to the\nrefill path without releasing the current RX buffer and its DMA mapping.\nInstalling a replacement buffer then overwrites the slot references and\nleaks both resources.\n\nKeep the current slot intact and return budget so NAPI retries the same\nbuffer. Also free a newly allocated RX fragment when dma_map_single()\nfails.\n\nThis issue was found by an in-house static analysis tool."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-19T16:29:52.114Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/690ecc13a4032e5cae1dc6659512f32b033533b0"
},
{
"url": "https://git.kernel.org/stable/c/2b19fe277645fd1aeb18fd4ecdcf31966080dee7"
},
{
"url": "https://git.kernel.org/stable/c/bcd43ee1f25b682151df213c06a99b2e1c1cf2e5"
},
{
"url": "https://git.kernel.org/stable/c/e054dcd990d8180cde529ea28ce0838e76a5ad5e"
},
{
"url": "https://git.kernel.org/stable/c/67a7614bde310da006ab259f4f163d3fb0f9e253"
},
{
"url": "https://git.kernel.org/stable/c/80d977f280b4eccd4ac5369871d0ecb2b9c9a49d"
},
{
"url": "https://git.kernel.org/stable/c/a0f247d63489a107bbc3b712a77b302af2a2a173"
},
{
"url": "https://git.kernel.org/stable/c/14fa65d10f5696b063a7d8d26e8291ea84a2c6ed"
}
],
"title": "net: hip04: fix RX buffer leak on build_skb failure",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-68135",
"datePublished": "2026-08-10T11:58:58.463Z",
"dateReserved": "2026-07-30T09:28:09.370Z",
"dateUpdated": "2026-08-19T16:29:52.114Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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