What’s Vulnerable › Vulnerabilities

CVE-2026-93796: wifi: iwlwifi: pcie: null RX pointers after free

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-24 · updated 2026-10-30

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: pcie: null RX pointers after free When iwl_pcie_tx_init() fails after RX init, nic init unwinds via iwl_pcie_rx_free(). The freed RX members stayed non-NULL on the live transport object, so later teardown or retry could touch stale RX state. Set rx_pool, global_table, rxq, and alloc_page to NULL after free to make repeated cleanup and retry paths safe.

Affected products

• Linux: 5.12 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2c79d7a7b583050c9f58041465cb46fe3483ab5d
• https://git.kernel.org/stable/c/3456c5bcc987aeb182e50e30c9b02be8420e9953
• https://git.kernel.org/stable/c/6ec5bf430cf7466cb412e47f2761594092781fac
• https://git.kernel.org/stable/c/847103369489110a222482c7781e0fe62cdbd3d5
• https://git.kernel.org/stable/c/c422d5d53f135ea987f745773953a91f9fe30c3f

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