CPU: 0 PID: 18993 Comm: syz-executor.5 Not tainted 6.0.0-rc5-syzkaller-48543-g968c2729e576 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:unregister_netdevice_many+0x256f/0x3020 net/core/dev.c:10886 Code: 30 f7 4d 39 ee 0f 84 34 fe ff ff e8 5b 55 b1 f6 0f 0b e9 2d fe ff ff e8 bf 63 30 f7 49 39 de 0f 84 20 ff ff ff e8 41 55 b1 f6 <0f> 0b e9 19 ff ff ff 44 89 ff e8 a2 63 30 f7 49 39 de 75 b2 e9 30 ===================================================== BUG: KMSAN: uninit-value in show_iret_regs+0x222/0x230 arch/x86/kernel/dumpstack.c:150 show_iret_regs+0x222/0x230 arch/x86/kernel/dumpstack.c:150 __show_regs+0x31/0xc90 arch/x86/kernel/process_64.c:74 show_regs+0x6e/0xd0 arch/x86/kernel/dumpstack.c:469 __warn+0x242/0x580 kernel/panic.c:621 report_bug+0x7ff/0xa10 lib/bug.c:198 handle_bug+0x41/0x70 arch/x86/kernel/traps.c:316 exc_invalid_op+0x1b/0x50 arch/x86/kernel/traps.c:336 asm_exc_invalid_op+0x1b/0x20 unregister_netdevice_many+0x256f/0x3020 rtnl_delete_link net/core/rtnetlink.c:3122 [inline] rtnl_dellink+0x1071/0x1490 net/core/rtnetlink.c:3173 rtnetlink_rcv_msg+0x16c9/0x1860 net/core/rtnetlink.c:6090 netlink_rcv_skb+0x3a5/0x6c0 net/netlink/af_netlink.c:2501 rtnetlink_rcv+0x30/0x40 net/core/rtnetlink.c:6108 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x1288/0x1440 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0xabc/0xe90 net/socket.c:2482 ___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2536 __sys_sendmsg net/socket.c:2565 [inline] __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __x64_sys_sendmsg+0x367/0x540 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Local variable ue.sroa.0 created at: util_est_update+0x48/0x550 kernel/sched/fair.c:4176 dequeue_task_fair+0x9dd/0x1370 kernel/sched/fair.c:5889 CPU: 0 PID: 18993 Comm: syz-executor.5 Not tainted 6.0.0-rc5-syzkaller-48543-g968c2729e576 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 =====================================================