CVE-2026-98426
Last modified
CVE-2026-98426 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: fix IRQ leak using wrong index in MSI-X error path mwifiex_pcie_request_irq() registers each MSI-X vector with a per-index dev_id (&card->msix_ctx[i]). On a request_irq() failure the cleanup loop "for (j = 0; j < i; j++)" frees msix_entries[j].vector but passes the failed index's &card->msix_ctx[i] as the dev_id.
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: fix IRQ leak using wrong index in MSI-X error path mwifiex_pcie_request_irq() registers each MSI-X vector with a per-index dev_id (&card->msix_ctx[i]). On a request_irq() failure the cleanup loop "for (j = 0; j < i; j++)" frees msix_entries[j].vector but passes the failed index's &card->msix_ctx[i] as the dev_id. free_irq() matches on (irq, dev_id), so it fails to find the action registered with &card->msix_ctx[j]: the already-requested IRQ j is not freed (leaked) and free_irq() warns about freeing a non-existent IRQ. Use &card->msix_ctx[j].
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 99074fc1e67b374b5c72406a23ac01fed806d634, < 11bc2cbb14f450eaa47cce9eb086f948ef8f4bcd; >= 99074fc1e67b374b5c72406a23ac01fed806d634, < 1a60cb2292194cc9eafae7ca8a8a72d37ae78d97; >= 99074fc1e67b374b5c72406a23ac01fed806d634, < fcac5813f324cd07dfd36b4adf624fc70f7587d6; >= 99074fc1e67b374b5c72406a23ac01fed806d634, < 2761b21cb896b1da8dd46cee5084c9032b2d7098; >= 99074fc1e67b374b5c72406a23ac01fed806d634, < 5fd4cc87e6cc0839aac89c24ebe39ce262fe088f; >= 99074fc1e67b374b5c72406a23ac01fed806d634, < 0969c9688389f2e0f65b1a924b0dd6625a3bb776; >= 99074fc1e67b374b5c72406a23ac01fed806d634, < 03d5e4776e8b71c2468c5c3c48b39202c87a8796; >= 99074fc1e67b374b5c72406a23ac01fed806d634, < a3d722190cdef18da4878b5efc27c3c386dda248 |
| Linux | Linux | 4.6 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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