CVE-2026-23313 (GCVE-0-2026-23313)

Vulnerability from cvelistv5 – Published: 2026-03-25 10:27 – Updated: 2026-03-25 10:27
VLAI?
Title
i40e: Fix preempt count leak in napi poll tracepoint
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 6d4d584a7ea8fc8d2be77545cb503118c193738a , < b7e91827e1cf89cd34ad11dc8f8c010b70ab786e (git)
Affected: 6d4d584a7ea8fc8d2be77545cb503118c193738a , < 9e0f091821571f0da387462803ee42f0bb157582 (git)
Affected: 6d4d584a7ea8fc8d2be77545cb503118c193738a , < dca4ea596a3b0a1b82bc1d9f3e4d88bd9ad9561f (git)
Affected: 6d4d584a7ea8fc8d2be77545cb503118c193738a , < 4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9 (git)
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    Linux Linux Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.12.77 , ≤ 6.12.* (semver)
Unaffected: 6.18.17 , ≤ 6.18.* (semver)
Unaffected: 6.19.7 , ≤ 6.19.* (semver)
Unaffected: 7.0-rc3 , ≤ * (original_commit_for_fix)
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            "drivers/net/ethernet/intel/i40e/i40e_trace.h"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: Fix preempt count leak in napi poll tracepoint\n\nUsing get_cpu() in the tracepoint assignment causes an obvious preempt\ncount leak because nothing invokes put_cpu() to undo it:\n\n  softirq: huh, entered softirq 3 NET_RX with preempt_count 00000100, exited with 00000101?\n\nThis clearly has seen a lot of testing in the last 3+ years...\n\nUse smp_processor_id() instead."
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        "dateUpdated": "2026-03-25T10:27:08.686Z",
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    "datePublished": "2026-03-25T10:27:08.686Z",
    "dateReserved": "2026-01-13T15:37:45.994Z",
    "dateUpdated": "2026-03-25T10:27:08.686Z",
    "state": "PUBLISHED"
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  • 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.
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