================================================================== BUG: KASAN: slab-out-of-bounds in htc_process_conn_rsp drivers/net/wireless/ath/ath9k/htc_hst.c:131 [inline] BUG: KASAN: slab-out-of-bounds in ath9k_htc_rx_msg+0xa25/0xaf0 drivers/net/wireless/ath/ath9k/htc_hst.c:443 Write of size 2 at addr ffff8881cbb69850 by task systemd-udevd/155 CPU: 0 PID: 155 Comm: systemd-udevd Not tainted 5.6.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xef/0x16e lib/dump_stack.c:118 print_address_description.constprop.0.cold+0xd3/0x314 mm/kasan/report.c:374 __kasan_report.cold+0x37/0x77 mm/kasan/report.c:506 kasan_report+0xe/0x20 mm/kasan/common.c:641 htc_process_conn_rsp drivers/net/wireless/ath/ath9k/htc_hst.c:131 [inline] ath9k_htc_rx_msg+0xa25/0xaf0 drivers/net/wireless/ath/ath9k/htc_hst.c:443 ath9k_hif_usb_reg_in_cb+0x1ba/0x630 drivers/net/wireless/ath/ath9k/hif_usb.c:718 __usb_hcd_giveback_urb+0x29a/0x550 drivers/usb/core/hcd.c:1650 usb_hcd_giveback_urb+0x368/0x420 drivers/usb/core/hcd.c:1716 dummy_timer+0x1258/0x32ae drivers/usb/gadget/udc/dummy_hcd.c:1966 call_timer_fn+0x195/0x6f0 kernel/time/timer.c:1404 expire_timers kernel/time/timer.c:1449 [inline] __run_timers kernel/time/timer.c:1773 [inline] __run_timers kernel/time/timer.c:1740 [inline] run_timer_softirq+0x5f9/0x1500 kernel/time/timer.c:1786 __do_softirq+0x21e/0x950 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x178/0x1a0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:546 [inline] smp_apic_timer_interrupt+0x141/0x540 arch/x86/kernel/apic/apic.c:1146 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:seccomp_run_filters kernel/seccomp.c:275 [inline] RIP: 0010:__seccomp_filter+0x186/0x1350 kernel/seccomp.c:815 Code: 89 c5 e8 4d 98 ff ff 44 89 ef 89 de 41 89 df 66 31 ff 66 31 f6 89 74 24 14 89 7c 24 08 e8 52 99 ff ff 8b 7c 24 08 8b 74 24 14 <39> f7 7d 0a 45 89 ef 48 89 2c 24 44 89 eb e8 17 98 ff ff 48 8d 7d RSP: 0018:ffff8881cf46fca8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 000000007fff0000 RCX: ffffffff813fbdae RDX: 000000007fff0000 RSI: 000000007fff0000 RDI: 000000007fff0000 RBP: ffff8881d45c1800 R08: ffff8881d1d8b100 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: 000000007fff0000 R14: ffff8881cf46fe70 R15: 000000007fff0000 __secure_computing+0xac/0x280 kernel/seccomp.c:948 syscall_trace_enter+0x2a3/0xcd0 arch/x86/entry/common.c:118 do_syscall_64+0x462/0x5a0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f5c0fbea270 Code: 73 01 c3 48 8b 0d 38 7d 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 59 c1 20 00 00 75 10 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ee fb ff ff 48 89 04 24 RSP: 002b:00007fff38aeba88 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 000000000000000e RCX: 00007f5c0fbea270 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000e RBP: 00007f5c10aa3710 R08: fe02000000000000 R09: 0000000000000007 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000fffffffe R14: 0000000000000000 R15: 0000000000000001 Allocated by task 410: save_stack+0x1b/0x80 mm/kasan/common.c:72 set_track mm/kasan/common.c:80 [inline] __kasan_kmalloc mm/kasan/common.c:515 [inline] __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:488 kmalloc include/linux/slab.h:555 [inline] kzalloc include/linux/slab.h:669 [inline] device_create_groups_vargs+0x8a/0x280 drivers/base/core.c:3129 device_create_vargs+0x3a/0x50 drivers/base/core.c:3187 bdi_register_va.part.0+0x85/0x800 mm/backing-dev.c:941 bdi_register_va mm/backing-dev.c:977 [inline] bdi_register+0x12a/0x140 mm/backing-dev.c:974 bdi_register_owner+0x62/0x110 mm/backing-dev.c:984 __device_add_disk+0xd69/0x1140 block/genhd.c:739 sd_probe+0xa47/0xed1 drivers/scsi/sd.c:3386 really_probe+0x290/0xac0 drivers/base/dd.c:551 driver_probe_device+0x223/0x350 drivers/base/dd.c:724 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:831 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431 __device_attach_async_helper+0x1d9/0x2a0 drivers/base/dd.c:857 async_run_entry_fn+0xd3/0x6f0 kernel/async.c:123 process_one_work+0x94b/0x1620 kernel/workqueue.c:2264 worker_thread+0x96/0xe20 kernel/workqueue.c:2410 kthread+0x318/0x420 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Freed by task 3319: save_stack+0x1b/0x80 mm/kasan/common.c:72 set_track mm/kasan/common.c:80 [inline] kasan_set_free_info mm/kasan/common.c:337 [inline] __kasan_slab_free+0x117/0x160 mm/kasan/common.c:476 slab_free_hook mm/slub.c:1444 [inline] slab_free_freelist_hook mm/slub.c:1477 [inline] slab_free mm/slub.c:3024 [inline] kfree+0xd5/0x300 mm/slub.c:3976 device_release+0x71/0x200 drivers/base/core.c:1371 kobject_cleanup lib/kobject.c:693 [inline] kobject_release lib/kobject.c:722 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x256/0x550 lib/kobject.c:739 put_device drivers/base/core.c:2599 [inline] device_unregister+0x34/0xc0 drivers/base/core.c:2710 bdi_unregister+0x337/0x4c0 mm/backing-dev.c:1017 del_gendisk+0x853/0xac0 block/genhd.c:810 sd_remove+0x12e/0x200 drivers/scsi/sd.c:3437 __device_release_driver drivers/base/dd.c:1137 [inline] device_release_driver_internal+0x42f/0x500 drivers/base/dd.c:1168 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:533 device_del+0x481/0xd30 drivers/base/core.c:2677 __scsi_remove_device+0x2f1/0x3c0 drivers/scsi/scsi_sysfs.c:1428 scsi_forget_host+0x133/0x183 drivers/scsi/scsi_scan.c:1872 scsi_remove_host+0x135/0x360 drivers/scsi/hosts.c:180 quiesce_and_remove_host drivers/usb/storage/usb.c:864 [inline] usb_stor_disconnect+0x115/0x260 drivers/usb/storage/usb.c:1084 usb_unbind_interface+0x1bd/0x8a0 drivers/usb/core/driver.c:436 __device_release_driver drivers/base/dd.c:1137 [inline] device_release_driver_internal+0x42f/0x500 drivers/base/dd.c:1168 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:533 device_del+0x481/0xd30 drivers/base/core.c:2677 usb_disable_device+0x23d/0x790 drivers/usb/core/message.c:1237 usb_disconnect+0x293/0x900 drivers/usb/core/hub.c:2211 hub_port_connect drivers/usb/core/hub.c:5046 [inline] hub_port_connect_change drivers/usb/core/hub.c:5335 [inline] port_event drivers/usb/core/hub.c:5481 [inline] hub_event+0x1a1d/0x4300 drivers/usb/core/hub.c:5563 process_one_work+0x94b/0x1620 kernel/workqueue.c:2264 worker_thread+0x96/0xe20 kernel/workqueue.c:2410 kthread+0x318/0x420 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 The buggy address belongs to the object at ffff8881cbb69000 which belongs to the cache kmalloc-2k of size 2048 The buggy address is located 80 bytes to the right of 2048-byte region [ffff8881cbb69000, ffff8881cbb69800) The buggy address belongs to the page: page:ffffea00072eda00 refcount:1 mapcount:0 mapping:ffff8881da00c000 index:0x0 compound_mapcount: 0 flags: 0x200000000010200(slab|head) raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881da00c000 raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8881cbb69700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8881cbb69780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8881cbb69800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8881cbb69880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8881cbb69900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================