Bug 2395342 (CVE-2023-53251) - CVE-2023-53251 kernel: wifi: iwlwifi: pcie: fix NULL pointer dereference in iwl_pcie_irq_rx_msix_handler()
Summary: CVE-2023-53251 kernel: wifi: iwlwifi: pcie: fix NULL pointer dereference in i...
Keywords:
Status: NEW
Alias: CVE-2023-53251
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-09-15 15:08 UTC by OSIDB Bzimport
Modified: 2025-09-19 17:12 UTC (History)
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Description OSIDB Bzimport 2025-09-15 15:08:35 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: pcie: fix NULL pointer dereference in iwl_pcie_irq_rx_msix_handler()

rxq can be NULL only when trans_pcie->rxq is NULL and entry->entry
is zero. For the case when entry->entry is not equal to 0, rxq
won't be NULL even if trans_pcie->rxq is NULL. Modify checker to
check for trans_pcie->rxq.
Comment 1 Jon Moroney 2025-09-15 21:00:37 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091502-CVE-2023-53251-8d43@gregkh/T
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