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CVE-2026-53112

wifi: rtlwifi: pci: fix possible use-after-free caused by unfinished irq_prepare_bcn_tasklet

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 0c8173385e549f95cd80c3fff5aab87b4f881d8d
Version < ae10d4a1ab6bcaa1336abb171908a9a365761d3e
Status affected
Version 0c8173385e549f95cd80c3fff5aab87b4f881d8d
Version < fac1079e0fdec6df6d7562c21941587236dc3def
Status affected
Version 0c8173385e549f95cd80c3fff5aab87b4f881d8d
Version < e40873820c9d245ce482faa7ad514ebdb3b8d23d
Status affected
Version 0c8173385e549f95cd80c3fff5aab87b4f881d8d
Version < 008c456b76e9070979bc0e763897a5d3b0fdd4dc
Status affected
Version 0c8173385e549f95cd80c3fff5aab87b4f881d8d
Version < 7731b67bd59d1284d150cbe40a47e95a10613234
Status affected
Version 0c8173385e549f95cd80c3fff5aab87b4f881d8d
Version < aa10a452e34810987fb9f4a047995b30003fb53f
Status affected
Version 0c8173385e549f95cd80c3fff5aab87b4f881d8d
Version < 3c0e8a3179e6325a7dc6ce221aef0e03d854ab4b
Status affected
Version 0c8173385e549f95cd80c3fff5aab87b4f881d8d
Version < 039cd522dc70151da13329a5e3ae19b1736f468a
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 2.6.38
Status affected
Version 0
Version < 2.6.38
Status unaffected
Version <= 5.10.*
Version 5.10.258
Status unaffected
Version <= 5.15.*
Version 5.15.209
Status unaffected
Version <= 6.1.*
Version 6.1.175
Status unaffected
Version <= 6.6.*
Version 6.6.141
Status unaffected
Version <= 6.12.*
Version 6.12.91
Status unaffected
Version <= 6.18.*
Version 6.18.33
Status unaffected
Version <= 7.0.*
Version 7.0.10
Status unaffected
Version <= *
Version 7.1
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.06
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
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