Messages in this thread |  | | From | Jia-Ju Bai <> | Subject | [BUG] rtlwifi: Resource leaks in error handling code of rtl_pci_probe() | Date | Tue, 14 May 2019 20:55:31 +0800 |
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In rtl_pci_probe(), rtl_pci_init() allocates some resources, such as: _rtl_pci_init_trx_ring _rtl_pci_init_rx_ring _rtl_pci_init_rx_ring pci_zalloc_consistent() -- resource _rtl_pci_init_one_rxdesc dev_alloc_skb() -- resource
_rtl_pci_init_trx_ring _rtl_pci_init_tx_ring pci_zalloc_consistent() -- resource
When ieee80211_register_hw() or rtl_pci_intr_mode_decide() fails, these resources are not released in error handling code.
A possible fix is to call rtl_pci_deinit() in error handling code, but I am not sure whether this is correct. Thus, I only report the bugs.
These bugs are found by a runtime fuzzing tool named FIZZER written by us.
Best wishes, Jia-Ju Bai
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