Hello: This patch was applied to netdev/net.git (main) by Paolo Abeni <pabeni@xxxxxxxxxx>: On Fri, 30 May 2025 11:16:48 +0800 you wrote: > When driver handles the napi rx polling requests, the netdev might > have been released by the dellink logic triggered by the disconnect > operation on user plane. However, in the logic of processing skb in > polling, an invalid netdev is still being used, which causes a panic. > > BUG: kernel NULL pointer dereference, address: 00000000000000f1 > Oops: 0000 [#1] PREEMPT SMP NOPTI > RIP: 0010:dev_gro_receive+0x3a/0x620 > [...] > Call Trace: > <IRQ> > ? __die_body+0x68/0xb0 > ? page_fault_oops+0x379/0x3e0 > ? exc_page_fault+0x4f/0xa0 > ? asm_exc_page_fault+0x22/0x30 > ? __pfx_t7xx_ccmni_recv_skb+0x10/0x10 [mtk_t7xx (HASH:1400 7)] > ? dev_gro_receive+0x3a/0x620 > napi_gro_receive+0xad/0x170 > t7xx_ccmni_recv_skb+0x48/0x70 [mtk_t7xx (HASH:1400 7)] > t7xx_dpmaif_napi_rx_poll+0x590/0x800 [mtk_t7xx (HASH:1400 7)] > net_rx_action+0x103/0x470 > irq_exit_rcu+0x13a/0x310 > sysvec_apic_timer_interrupt+0x56/0x90 > </IRQ> > > [...] Here is the summary with links: - [net,v3] net: wwan: t7xx: Fix napi rx poll issue https://git.kernel.org/netdev/net/c/905fe0845bb2 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html