Description
In the Linux kernel, the following vulnerability has been resolved: wifi: rtlwifi: pci: fix possible use-after-free caused by unfinished irq_prepare_bcn_tasklet The irq_prepare_bcn_tasklet is initialized in rtl_pci_init() and scheduled when RTL_IMR_BCNINT interrupt is triggered by hardware. But it is never killed in rtl_pci_deinit(). When the rtlwifi card probe fails or is being detached, the ieee80211_hw is deallocated. However, irq_prepare_bcn_tasklet may still be running or pending, leading to use-after-free when the freed ieee80211_hw is accessed in _rtl_pci_prepare_bcn_tasklet(). Similar to irq_tasklet, add tasklet_kill() in rtl_pci_deinit() to ensure that irq_prepare_bcn_tasklet is properly terminated before the ieee80211_hw is released. The issue was identified through static analysis.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 0c8173385e549f95cd80c3fff5aab87b4f881d8d to <ae10d4a1ab6bcaa1336abb171908a9a365761d3e; 0c8173385e549f95cd80c3fff5aab87b4f881d8d to <fac1079e0fdec6df6d7562c21941587236dc3def; 0c8173385e549f95cd80c3fff5aab87b4f881d8d to <e40873820c9d245ce482faa7ad514ebdb3b8d23d; 0c8173385e549f95cd80c3fff5aab87b4f881d8d to <008c456b76e9070979bc0e763897a5d3b0fdd4dc; 0c8173385e549f95cd80c3fff5aab87b4f881d8d to <7731b67bd59d1284d150cbe40a47e95a10613234; 0c8173385e549f95cd80c3fff5aab87b4f881d8d to <aa10a452e34810987fb9f4a047995b30003fb53f; 0c8173385e549f95cd80c3fff5aab87b4f881d8d to <3c0e8a3179e6325a7dc6ce221aef0e03d854ab4b; 0c8173385e549f95cd80c3fff5aab87b4f881d8d to <039cd522dc70151da13329a5e3ae19b1736f468a |
| Linux | Linux | 2.6.38; 0 to <2.6.38; 5.10.258 to <=5.10.*; 5.15.209 to <=5.15.*; 6.1.175 to <=6.1.*; 6.6.141 to <=6.6.*; 6.12.91 to <=6.12.*; 6.18.33 to <=6.18.*; 7.0.10 to <=7.0.*; 7.1 to <=* |
References
- https://git.kernel.org/stable/c/ae10d4a1ab6bcaa1336abb171908a9a365761d3e
- https://git.kernel.org/stable/c/fac1079e0fdec6df6d7562c21941587236dc3def
- https://git.kernel.org/stable/c/e40873820c9d245ce482faa7ad514ebdb3b8d23d
- https://git.kernel.org/stable/c/008c456b76e9070979bc0e763897a5d3b0fdd4dc
- https://git.kernel.org/stable/c/7731b67bd59d1284d150cbe40a47e95a10613234
- https://git.kernel.org/stable/c/aa10a452e34810987fb9f4a047995b30003fb53f
- https://git.kernel.org/stable/c/3c0e8a3179e6325a7dc6ce221aef0e03d854ab4b
- https://git.kernel.org/stable/c/039cd522dc70151da13329a5e3ae19b1736f468a
Generated from the official CVE List on 25 Jun 2026 10:14 UTC.