CVE-2022-50288 (GCVE-0-2022-50288)
Vulnerability from cvelistv5
Published
2025-09-15 14:21
Modified
2025-09-15 14:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure
adapter->dcb would get silently freed inside qlcnic_dcb_enable() in
case qlcnic_dcb_attach() would return an error, which always happens
under OOM conditions. This would lead to use-after-free because both
of the existing callers invoke qlcnic_dcb_get_info() on the obtained
pointer, which is potentially freed at that point.
Propagate errors from qlcnic_dcb_enable(), and instead free the dcb
pointer at callsite using qlcnic_dcb_free(). This also removes the now
unused qlcnic_clear_dcb_ops() helper, which was a simple wrapper around
kfree() also causing memory leaks for partially initialized dcb.
Found by Linux Verification Center (linuxtesting.org) with the SVACE
static analysis tool.
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| ▼ | Linux | Linux |
Version: 3c44bba1d270cb1620b4fe76786d0968118cb86b Version: 3c44bba1d270cb1620b4fe76786d0968118cb86b Version: 3c44bba1d270cb1620b4fe76786d0968118cb86b Version: 3c44bba1d270cb1620b4fe76786d0968118cb86b Version: 3c44bba1d270cb1620b4fe76786d0968118cb86b Version: 3c44bba1d270cb1620b4fe76786d0968118cb86b Version: 3c44bba1d270cb1620b4fe76786d0968118cb86b Version: 3c44bba1d270cb1620b4fe76786d0968118cb86b |
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{
"containers": {
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{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c",
"drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.h",
"drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c"
],
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"drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.h",
"drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"version": "3.14"
},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "4.14.303",
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},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.270",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.229",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.163",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.87",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"version": "6.0.19",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
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],
"descriptions": [
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nqlcnic: prevent -\u003edcb use-after-free on qlcnic_dcb_enable() failure\n\nadapter-\u003edcb would get silently freed inside qlcnic_dcb_enable() in\ncase qlcnic_dcb_attach() would return an error, which always happens\nunder OOM conditions. This would lead to use-after-free because both\nof the existing callers invoke qlcnic_dcb_get_info() on the obtained\npointer, which is potentially freed at that point.\n\nPropagate errors from qlcnic_dcb_enable(), and instead free the dcb\npointer at callsite using qlcnic_dcb_free(). This also removes the now\nunused qlcnic_clear_dcb_ops() helper, which was a simple wrapper around\nkfree() also causing memory leaks for partially initialized dcb.\n\nFound by Linux Verification Center (linuxtesting.org) with the SVACE\nstatic analysis tool."
}
],
"providerMetadata": {
"dateUpdated": "2025-09-15T14:21:24.427Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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{
"url": "https://git.kernel.org/stable/c/d12a7510293d3370b234b0b7c5eda33e58786768"
},
{
"url": "https://git.kernel.org/stable/c/8f97eeb02a553cdc78c83a0596448a370e1518c4"
},
{
"url": "https://git.kernel.org/stable/c/513787ff9a331b461115e8a145a983d650a84fcb"
},
{
"url": "https://git.kernel.org/stable/c/95df720e64a6409d8152827a776c43f615e3321a"
},
{
"url": "https://git.kernel.org/stable/c/8df1dc04ce0e4c03b51a756749c250a9cb17d707"
},
{
"url": "https://git.kernel.org/stable/c/a2a694e6edbdb3efb34e1613a31fdcf6cf444a55"
},
{
"url": "https://git.kernel.org/stable/c/13a7c8964afcd8ca43c0b6001ebb0127baa95362"
}
],
"title": "qlcnic: prevent -\u003edcb use-after-free on qlcnic_dcb_enable() failure",
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"cveId": "CVE-2022-50288",
"datePublished": "2025-09-15T14:21:24.427Z",
"dateReserved": "2025-09-15T13:58:00.977Z",
"dateUpdated": "2025-09-15T14:21:24.427Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
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}
}
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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.
- 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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