CVE-2026-23313

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix preempt count leak in napi poll tracepoint Using get_cpu() in the tracepoint assignment causes an obvious preempt count leak because nothing invokes put_cpu() to undo it: softirq: huh, entered softirq 3 NET_RX with preempt_count 00000100, exited with 00000101? This clearly has seen a lot of testing in the last 3+ years... Use smp_processor_id() instead.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9	Patch
https://git.kernel.org/stable/c/9e0f091821571f0da387462803ee42f0bb157582	Patch
https://git.kernel.org/stable/c/b7e91827e1cf89cd34ad11dc8f8c010b70ab786e	Patch
https://git.kernel.org/stable/c/dca4ea596a3b0a1b82bc1d9f3e4d88bd9ad9561f	Patch
https://git.kernel.org/stable/c/fa5d5baf67f619c7aa70697a194b5a9edd9f5bb7	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc1::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc2::::::

History

No history.

Information

Published : 2026-03-25 11:16

Updated : 2026-06-17 10:21

NVD link : CVE-2026-23313

Mitre link : CVE-2026-23313

CVE.ORG link : CVE-2026-23313

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-Other

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"b7e91827e1cf89cd34ad11dc8f8c010b70ab786e", "versionType": "git"}, {"status": "affected", "version": "6d4d584a7ea8fc8d2be77545cb503118c193738a", "lessThan": "9e0f091821571f0da387462803ee42f0bb157582", "versionType": "git"}, {"status": "affected", "version": "6d4d584a7ea8fc8d2be77545cb503118c193738a", "lessThan": "dca4ea596a3b0a1b82bc1d9f3e4d88bd9ad9561f", "versionType": "git"}, {"status": "affected", "version": "6d4d584a7ea8fc8d2be77545cb503118c193738a", "lessThan": "4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9", "versionType": "git"}], "programFiles": ["drivers/net/ethernet/intel/i40e/i40e_trace.h"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.2"}, {"status": "unaffected", "version": "0", "lessThan": "6.2", "versionType": "semver"}, {"status": "unaffected", "version": "6.6.136", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.77", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.17", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.7", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/ethernet/intel/i40e/i40e_trace.h"], "defaultStatus": "affected"}]}], "published": "2026-03-25T11:16:27.623", "references": [{"url": "https://git.kernel.org/stable/c/4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9e0f091821571f0da387462803ee42f0bb157582", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b7e91827e1cf89cd34ad11dc8f8c010b70ab786e", "tags": ["Patch"], "source": 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{"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ni40e: Soluci\u00f3n a la fuga del contador de preemption en el tracepoint de sondeo de napi\n\nUsar get_cpu() en la asignaci\u00f3n del tracepoint causa una fuga obvia del contador de preemption porque nada invoca put_cpu() para deshacerlo:\n\n'softirq: eh, entr\u00f3 en softirq 3 NET_RX con preempt_count 00000100, sali\u00f3 con 00000101?'\n\nEsto claramente ha sido sometido a muchas pruebas en los \u00faltimos 3+ a\u00f1os...\n\nUsar smp_processor_id() en su lugar."}], "lastModified": "2026-06-17T10:21:18.617", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0A0F1E9A-F127-4699-A014-9E08441C9A14", "versionEndExcluding": "6.6.136", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": 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