Wind River Support Network

Description

In the Linux kernel, the following vulnerability has been resolved:  net: txgbe: fix RTNL assertion warning when remove module  For the copper NIC with external PHY, the driver called phylink_connect_phy() during probe and phylink_disconnect_phy() during remove. It caused an RTNL assertion warning in phylink_disconnect_phy() upon module remove.  To fix this, add rtnl_lock() and rtnl_unlock() around the phylink_disconnect_phy() in remove function.   ------------[ cut here ]------------  RTNL: assertion failed at drivers/net/phy/phylink.c (2351)  WARNING: drivers/net/phy/phylink.c:2351 at phylink_disconnect_phy+0xd8/0xf0 [phylink], CPU#0: rmmod/4464  Modules linked in: ...  CPU: 0 UID: 0 PID: 4464 Comm: rmmod Kdump: loaded Not tainted 7.0.0-rc4+  Hardware name: Micro-Star International Co., Ltd. MS-7E16/X670E GAMING PLUS WIFI (MS-7E16), BIOS 1.90 12/31/2024  RIP: 0010:phylink_disconnect_phy+0xe4/0xf0 [phylink]  Code: 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 31 d2 31 f6 31 ff e9 3a 38 8f e7 48 8d 3d 48 87 e2 ff ba 2f 09 00 00 48 c7 c6 c1 22 24 c0 <67> 48 0f b9 3a e9 34 ff ff ff 66 90 90 90 90 90 90 90 90 90 90 90  RSP: 0018:ffffce7288363ac0 EFLAGS: 00010246  RAX: 0000000000000000 RBX: ffff89654b2a1a00 RCX: 0000000000000000  RDX: 000000000000092f RSI: ffffffffc02422c1 RDI: ffffffffc0239020  RBP: ffffce7288363ae8 R08: 0000000000000000 R09: 0000000000000000  R10: 0000000000000000 R11: 0000000000000000 R12: ffff8964c4022000  R13: ffff89654fce3028 R14: ffff89654ebb4000 R15: ffffffffc0226348  FS:  0000795e80d93780(0000) GS:ffff896c52857000(0000) knlGS:0000000000000000  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033  CR2: 00005b528b592000 CR3: 0000000170d0f000 CR4: 0000000000f50ef0  PKRU: 55555554  Call Trace:   <TASK>   txgbe_remove_phy+0xbb/0xd0 [txgbe]   txgbe_remove+0x4c/0xb0 [txgbe]   pci_device_remove+0x41/0xb0   device_remove+0x43/0x80   device_release_driver_internal+0x206/0x270   driver_detach+0x4a/0xa0   bus_remove_driver+0x83/0x120   driver_unregister+0x2f/0x60   pci_unregister_driver+0x40/0x90   txgbe_driver_exit+0x10/0x850 [txgbe]   __do_sys_delete_module.isra.0+0x1c3/0x2f0   __x64_sys_delete_module+0x12/0x20   x64_sys_call+0x20c3/0x2390   do_syscall_64+0x11c/0x1500   ? srso_alias_return_thunk+0x5/0xfbef5   ? do_syscall_64+0x15a/0x1500   ? srso_alias_return_thunk+0x5/0xfbef5   ? do_fault+0x312/0x580   ? srso_alias_return_thunk+0x5/0xfbef5   ? __handle_mm_fault+0x9d5/0x1040   ? srso_alias_return_thunk+0x5/0xfbef5   ? count_memcg_events+0x101/0x1d0   ? srso_alias_return_thunk+0x5/0xfbef5   ? handle_mm_fault+0x1e8/0x2f0   ? srso_alias_return_thunk+0x5/0xfbef5   ? do_user_addr_fault+0x2f8/0x820   ? srso_alias_return_thunk+0x5/0xfbef5   ? irqentry_exit+0xb2/0x600   ? srso_alias_return_thunk+0x5/0xfbef5   ? exc_page_fault+0x92/0x1c0   entry_SYSCALL_64_after_hwframe+0x76/0x7e