CVE-2026-98426 is a vulnerability in Linux Kernel
Published on October 14, 2026
wifi: mwifiex: fix IRQ leak using wrong index in MSI-X error path
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].
Products Associated with CVE-2026-98426
Want to know whenever a new CVE is published for Linux Kernel? stack.watch will email you.
Affected Versions
Linux:- Version 99074fc1e67b374b5c72406a23ac01fed806d634 and below 11bc2cbb14f450eaa47cce9eb086f948ef8f4bcd is affected.
- Version 99074fc1e67b374b5c72406a23ac01fed806d634 and below 1a60cb2292194cc9eafae7ca8a8a72d37ae78d97 is affected.
- Version 99074fc1e67b374b5c72406a23ac01fed806d634 and below fcac5813f324cd07dfd36b4adf624fc70f7587d6 is affected.
- Version 99074fc1e67b374b5c72406a23ac01fed806d634 and below 2761b21cb896b1da8dd46cee5084c9032b2d7098 is affected.
- Version 99074fc1e67b374b5c72406a23ac01fed806d634 and below 5fd4cc87e6cc0839aac89c24ebe39ce262fe088f is affected.
- Version 99074fc1e67b374b5c72406a23ac01fed806d634 and below 0969c9688389f2e0f65b1a924b0dd6625a3bb776 is affected.
- Version 99074fc1e67b374b5c72406a23ac01fed806d634 and below 03d5e4776e8b71c2468c5c3c48b39202c87a8796 is affected.
- Version 99074fc1e67b374b5c72406a23ac01fed806d634 and below a3d722190cdef18da4878b5efc27c3c386dda248 is affected.
- Version 4.6 is affected.
- Before 4.6 is unaffected.
- Version 5.10.271, <= 5.10.* is unaffected.
- Version 5.15.222, <= 5.15.* is unaffected.
- Version 6.1.189, <= 6.1.* is unaffected.
- Version 6.6.158, <= 6.6.* is unaffected.
- Version 6.12.112, <= 6.12.* is unaffected.
- Version 6.18.54, <= 6.18.* is unaffected.
- Version 7.2.8, <= 7.2.* is unaffected.
- Version 7.3-rc4, <= * is unaffected.