CVE-2026-53112
published 2026-06-24CVE-2026-53112: In the Linux kernel, the following vulnerability has been resolved: wifi: rtlwifi: pci: fix possible use-after-free caused by unfinished…
PriorityP423
EPSS
0.16%
6.0th percentile
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
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| linux | linux | — | — |
| linux | linux | >= 0c8173385e549f95cd80c3fff5aab87b4f881d8d < ae10d4a1ab6bcaa1336abb171908a9a365761d3e | ae10d4a1ab6bcaa1336abb171908a9a365761d3e |
| linux | linux | >= 0c8173385e549f95cd80c3fff5aab87b4f881d8d < fac1079e0fdec6df6d7562c21941587236dc3def | fac1079e0fdec6df6d7562c21941587236dc3def |
| linux | linux | >= 0c8173385e549f95cd80c3fff5aab87b4f881d8d < e40873820c9d245ce482faa7ad514ebdb3b8d23d | e40873820c9d245ce482faa7ad514ebdb3b8d23d |
| linux | linux | >= 0c8173385e549f95cd80c3fff5aab87b4f881d8d < 008c456b76e9070979bc0e763897a5d3b0fdd4dc | 008c456b76e9070979bc0e763897a5d3b0fdd4dc |
| linux | linux | >= 0c8173385e549f95cd80c3fff5aab87b4f881d8d < 7731b67bd59d1284d150cbe40a47e95a10613234 | 7731b67bd59d1284d150cbe40a47e95a10613234 |
| linux | linux | >= 0c8173385e549f95cd80c3fff5aab87b4f881d8d < aa10a452e34810987fb9f4a047995b30003fb53f | aa10a452e34810987fb9f4a047995b30003fb53f |
| linux | linux | >= 0c8173385e549f95cd80c3fff5aab87b4f881d8d < 3c0e8a3179e6325a7dc6ce221aef0e03d854ab4b | 3c0e8a3179e6325a7dc6ce221aef0e03d854ab4b |
| linux | linux | >= 0c8173385e549f95cd80c3fff5aab87b4f881d8d < 039cd522dc70151da13329a5e3ae19b1736f468a | 039cd522dc70151da13329a5e3ae19b1736f468a |
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Red Hat
kernel: wifi: rtlwifi: pci: fix possible use-after-free caused by unfinished irq_prepare_bcn_tasklet
vendor_redhat·2026-06-24
CVE-2026-53112 CWE-825 kernel: wifi: rtlwifi: pci: fix possible use-after-free caused by unfinished irq_prepare_bcn_tasklet
kernel: wifi: rtlwifi: pci: fix possible use-after-free caused by unfinished irq_prepare_bcn_tasklet
A flaw was found in the Linux kernel's `rtlwifi` PCI driver. This vulnerability, a use-after-free, occurs when a `rtlwifi` wireless card is detached or fails to initialize, and a related background task is not properly shut down. This can lead to the system attempting to access memory that has already been released, potentially causing system instability or a denial of service.
VulDB
Linux Kernel up to 7.0.9 wifi rtl_pci_init use after free
vuldb·2026-06-24
CVE-2026-53112 [CRITICAL] Linux Kernel up to 7.0.9 wifi rtl_pci_init use after free
A vulnerability identified as critical has been detected in Linux Kernel up to 7.0.9. This impacts the function rtl_pci_init of the component wifi. This manipulation causes use after free.
The identification of this vulnerability is CVE-2026-53112. The attack needs to be done within the local network. There is no exploit available.
You should upgrade the affected component.
GHSA
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 initia
ghsa_unreviewed·2026-06-24
CVE-2026-53112 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 initia
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 an
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/008c456b76e9070979bc0e763897a5d3b0fdd4dchttps://git.kernel.org/stable/c/039cd522dc70151da13329a5e3ae19b1736f468ahttps://git.kernel.org/stable/c/3c0e8a3179e6325a7dc6ce221aef0e03d854ab4bhttps://git.kernel.org/stable/c/7731b67bd59d1284d150cbe40a47e95a10613234https://git.kernel.org/stable/c/aa10a452e34810987fb9f4a047995b30003fb53fhttps://git.kernel.org/stable/c/ae10d4a1ab6bcaa1336abb171908a9a365761d3ehttps://git.kernel.org/stable/c/e40873820c9d245ce482faa7ad514ebdb3b8d23dhttps://git.kernel.org/stable/c/fac1079e0fdec6df6d7562c21941587236dc3def
2026-06-24
Published