netdevsim netdevsim0: Direct firmware load for + failed with error -2 netdevsim netdevsim0: Falling back to sysfs fallback for: + ===================================================== BUG: KMSAN: uninit-value in __list_add_valid+0x1a7/0x420 lib/list_debug.c:23 CPU: 1 PID: 13732 Comm: syz-executor.0 Not tainted 5.12.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x24c/0x2e0 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:121 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197 __list_add_valid+0x1a7/0x420 lib/list_debug.c:23 __list_add include/linux/list.h:67 [inline] list_add include/linux/list.h:86 [inline] fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:516 [inline] fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:581 [inline] firmware_fallback_sysfs+0xa6d/0x1880 drivers/base/firmware_loader/fallback.c:657 _request_firmware+0x1a5c/0x2170 drivers/base/firmware_loader/main.c:831 request_firmware+0xc8/0x110 drivers/base/firmware_loader/main.c:875 devlink_compat_flash_update+0x294/0x660 net/core/devlink.c:10515 ethtool_flash_device+0x1f7/0x240 net/ethtool/ioctl.c:2076 dev_ethtool+0x47ed/0xe7b0 net/ethtool/ioctl.c:2760 dev_ioctl+0x5a3/0x1260 net/core/dev_ioctl.c:440 sock_do_ioctl+0x477/0x700 net/socket.c:1062 sock_ioctl+0x997/0xef0 net/socket.c:1179 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl+0x311/0x4d0 fs/ioctl.c:739 __x64_sys_ioctl+0x4a/0x70 fs/ioctl.c:739 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f79cecc1188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000020000580 RSI: 0000000000008946 RDI: 0000000000000003 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 0000000000a9fb1f R14: 00007f79cecc1300 R15: 0000000000022000 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:120 [inline] kmsan_internal_poison_shadow+0x66/0xd0 mm/kmsan/kmsan.c:103 kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2922 [inline] slab_alloc mm/slub.c:2931 [inline] __kmalloc_track_caller+0x965/0x11f0 mm/slub.c:4578 kmemdup+0x95/0x140 mm/util.c:128 neigh_parms_alloc+0xfc/0x8f0 net/core/neighbour.c:1617 inetdev_init+0x269/0xb80 net/ipv4/devinet.c:266 inetdev_event+0xd28/0x20e0 net/ipv4/devinet.c:1530 notifier_call_chain kernel/notifier.c:83 [inline] raw_notifier_call_chain+0x123/0x290 kernel/notifier.c:410 call_netdevice_notifiers_info net/core/dev.c:2075 [inline] call_netdevice_notifiers_extack net/core/dev.c:2087 [inline] call_netdevice_notifiers net/core/dev.c:2101 [inline] register_netdevice+0x306f/0x3710 net/core/dev.c:10238 macvlan_common_newlink+0x1a7f/0x22c0 drivers/net/macvlan.c:1496 macvlan_newlink+0xec/0x100 drivers/net/macvlan.c:1530 __rtnl_newlink net/core/rtnetlink.c:3443 [inline] rtnl_newlink+0x2ecc/0x3d80 net/core/rtnetlink.c:3491 rtnetlink_rcv_msg+0x143b/0x18e0 net/core/rtnetlink.c:5553 netlink_rcv_skb+0x6fa/0x810 net/netlink/af_netlink.c:2502 rtnetlink_rcv+0x50/0x60 net/core/rtnetlink.c:5571 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline] netlink_unicast+0x11d6/0x14a0 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x1740/0x1840 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg net/socket.c:674 [inline] ____sys_sendmsg+0xcfc/0x12f0 net/socket.c:2350 ___sys_sendmsg net/socket.c:2404 [inline] __sys_sendmsg+0x714/0x830 net/socket.c:2433 __do_sys_sendmsg net/socket.c:2442 [inline] __se_sys_sendmsg+0x97/0xb0 net/socket.c:2440 __x64_sys_sendmsg+0x4a/0x70 net/socket.c:2440 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xae =====================================================