Hello, syzbot found the following issue on: HEAD commit: 9d32fa5d Merge tag 'net-5.13-rc5' of git://git.kernel.org/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15dee1bbd00000 kernel config: https://syzkaller.appspot.com/x/.config?x=de8efb0998945e75 dashboard link: https://syzkaller.appspot.com/bug?extid=b80c9959009a9325cdff syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1706bbb5d00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14d708afd00000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b80c9959009a9325cdff@xxxxxxxxxxxxxxxxxxxxxxxxx Warning: Permanently added '10.128.1.19' (ECDSA) to the list of known hosts. executing program BUG: memory leak unreferenced object 0xffff8881020ec480 (size 64): comm "swapper/0", pid 1, jiffies 4294937719 (age 53.000s) hex dump (first 32 bytes): 60 5d 7c 06 81 88 ff ff c0 17 65 04 81 88 ff ff `]|.......e..... 80 35 12 42 81 88 ff ff 80 35 12 42 81 88 ff ff .5.B.....5.B.... backtrace: [<ffffffff82b09f12>] kmalloc include/linux/slab.h:556 [inline] [<ffffffff82b09f12>] kzalloc include/linux/slab.h:686 [inline] [<ffffffff82b09f12>] hwsim_alloc_edge.constprop.0+0x22/0x80 drivers/net/ieee802154/mac802154_hwsim.c:385 [<ffffffff82b0b0f3>] hwsim_subscribe_all_others drivers/net/ieee802154/mac802154_hwsim.c:709 [inline] [<ffffffff82b0b0f3>] hwsim_add_one+0x3b3/0x640 drivers/net/ieee802154/mac802154_hwsim.c:802 [<ffffffff82b0b3c4>] hwsim_probe+0x44/0xd0 drivers/net/ieee802154/mac802154_hwsim.c:848 [<ffffffff82628bf1>] platform_probe+0x81/0x120 drivers/base/platform.c:1447 [<ffffffff82625679>] really_probe+0x159/0x500 drivers/base/dd.c:576 [<ffffffff82625aab>] driver_probe_device+0x8b/0x100 drivers/base/dd.c:763 [<ffffffff82626325>] device_driver_attach+0x105/0x110 drivers/base/dd.c:1039 [<ffffffff826263d1>] __driver_attach drivers/base/dd.c:1117 [inline] [<ffffffff826263d1>] __driver_attach+0xa1/0x140 drivers/base/dd.c:1070 [<ffffffff82622459>] bus_for_each_dev+0xa9/0x100 drivers/base/bus.c:305 [<ffffffff826244e0>] bus_add_driver+0x160/0x280 drivers/base/bus.c:622 [<ffffffff82627233>] driver_register+0xc3/0x150 drivers/base/driver.c:171 [<ffffffff874fa3dc>] hwsim_init_module+0xae/0x107 drivers/net/ieee802154/mac802154_hwsim.c:899 [<ffffffff81001083>] do_one_initcall+0x63/0x2e0 init/main.c:1249 [<ffffffff87489873>] do_initcall_level init/main.c:1322 [inline] [<ffffffff87489873>] do_initcalls init/main.c:1338 [inline] [<ffffffff87489873>] do_basic_setup init/main.c:1358 [inline] [<ffffffff87489873>] kernel_init_freeable+0x1f4/0x26e init/main.c:1560 [<ffffffff84359255>] kernel_init+0xc/0x1a7 init/main.c:1447 [<ffffffff810022ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 BUG: memory leak unreferenced object 0xffff8881046517c0 (size 32): comm "swapper/0", pid 1, jiffies 4294937719 (age 53.000s) hex dump (first 32 bytes): ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff82b09f35>] kmalloc include/linux/slab.h:556 [inline] [<ffffffff82b09f35>] kzalloc include/linux/slab.h:686 [inline] [<ffffffff82b09f35>] hwsim_alloc_edge.constprop.0+0x45/0x80 drivers/net/ieee802154/mac802154_hwsim.c:389 [<ffffffff82b0b0f3>] hwsim_subscribe_all_others drivers/net/ieee802154/mac802154_hwsim.c:709 [inline] [<ffffffff82b0b0f3>] hwsim_add_one+0x3b3/0x640 drivers/net/ieee802154/mac802154_hwsim.c:802 [<ffffffff82b0b3c4>] hwsim_probe+0x44/0xd0 drivers/net/ieee802154/mac802154_hwsim.c:848 [<ffffffff82628bf1>] platform_probe+0x81/0x120 drivers/base/platform.c:1447 [<ffffffff82625679>] really_probe+0x159/0x500 drivers/base/dd.c:576 [<ffffffff82625aab>] driver_probe_device+0x8b/0x100 drivers/base/dd.c:763 [<ffffffff82626325>] device_driver_attach+0x105/0x110 drivers/base/dd.c:1039 [<ffffffff826263d1>] __driver_attach drivers/base/dd.c:1117 [inline] [<ffffffff826263d1>] __driver_attach+0xa1/0x140 drivers/base/dd.c:1070 [<ffffffff82622459>] bus_for_each_dev+0xa9/0x100 drivers/base/bus.c:305 [<ffffffff826244e0>] bus_add_driver+0x160/0x280 drivers/base/bus.c:622 [<ffffffff82627233>] driver_register+0xc3/0x150 drivers/base/driver.c:171 [<ffffffff874fa3dc>] hwsim_init_module+0xae/0x107 drivers/net/ieee802154/mac802154_hwsim.c:899 [<ffffffff81001083>] do_one_initcall+0x63/0x2e0 init/main.c:1249 [<ffffffff87489873>] do_initcall_level init/main.c:1322 [inline] [<ffffffff87489873>] do_initcalls init/main.c:1338 [inline] [<ffffffff87489873>] do_basic_setup init/main.c:1358 [inline] [<ffffffff87489873>] kernel_init_freeable+0x1f4/0x26e init/main.c:1560 [<ffffffff84359255>] kernel_init+0xc/0x1a7 init/main.c:1447 [<ffffffff810022ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
