wifi: iwlwifi: pcie: null RX pointers after free
CVE-2026-93796 · published 24 Sept 2026
How serious is it
- Severity: high, CVSS score 7 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-93796?
Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.
Who is affected
- Linux Linux: 9cf671d60fdbeb8f875859c11148cf13c326ada2 to < c422d5d53f135ea987f745773953a91f9fe30c3f, 9cf671d60fdbeb8f875859c11148cf13c326ada2 to < 6ec5bf430cf7466cb412e47f2761594092781fac, 9cf671d60fdbeb8f875859c11148cf13c326ada2 to < 3456c5bcc987aeb182e50e30c9b02be8420e9953, 9cf671d60fdbeb8f875859c11148cf13c326ada2 to < 2c79d7a7b583050c9f58041465cb46fe3483ab5d
- Linux Linux: 5.12
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
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.
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- git.kernel.org/stable/c/c422d5d53f135ea987f745773953a91f9fe30c3f
- git.kernel.org/stable/c/6ec5bf430cf7466cb412e47f2761594092781fac
- git.kernel.org/stable/c/3456c5bcc987aeb182e50e30c9b02be8420e9953
- git.kernel.org/stable/c/2c79d7a7b583050c9f58041465cb46fe3483ab5d
Merged from CVE List. Last updated 26 Oct 2026. All vulnerabilities · RSS · JSON