UnratedFix available
ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut Number of MW LUTs depends on NTB configuration and can be set to zero, in such scenario rounddown_pow_of_two will cause undefined behaviour and should not be performed. This patch ensures that rounddown_pow_of_two is called on valid value.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.252, 5.15.202, 6.1.165, 6.12.75, 6.18.16, 6.19.6, 6.6.128
- CVEs
- CVE-2026-43141
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 00:57 UTC · Revision 1
Source evidence
ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut
core-osv · Original sourcePublished 6 May 2026, 11:27 UTC
In the Linux kernel, the following vulnerability has been resolved: ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut Number of MW LUTs depends on NTB configuration and can be set to zero, in such scenario rounddown_pow_of_two will cause undefined behaviour and should not be performed. This patch ensures that rounddown_pow_of_two is called on valid value.
osv:CVE-2026-43141
Kernel
Fixed versions: 5.10.252, 5.15.202, 6.1.165, 6.6.128, 6.12.75, 6.18.16, 6.19.6
Complete source record
{
"id": "50e60360f38475469da8e6094bc060f95907106b91967668cf294f552b057edd",
"url": "https://osv.dev/vulnerability/CVE-2026-43141",
"method": "structured",
"payload": {
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"title": "ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut",
"summary": "In the Linux kernel, the following vulnerability has been resolved: ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut Number of MW LUTs depends on NTB configuration and can be set to zero, in such scenario rounddown_pow_of_two will cause undefined behaviour and should not be performed. This patch ensures that rounddown_pow_of_two is called on valid value.",
"evidence": "osv:CVE-2026-43141",
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"modified": "2026-10-28T02:30:48.877661465Z",
"provider": "osv",
"references": [
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"https://nvd.nist.gov/vuln/detail/CVE-2026-43141",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
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"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43141.json"
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},
"related_cves": [
{
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"evidence": "/id"
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"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 516794,
"published_at": "2026-05-06T11:27:26.193+00:00"
}