================================================================== BUG: KASAN: slab-out-of-bounds in get_unaligned_be16 include/asm-generic/unaligned.h:57 [inline] BUG: KASAN: slab-out-of-bounds in aqc_raw_event+0x35c/0x1830 drivers/hwmon/aquacomputer_d5next.c:721 Read of size 2 at addr ffff88801cb9f657 by task ksoftirqd/0/15 CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106 print_address_description mm/kasan/report.c:316 [inline] print_report+0xa8/0x210 mm/kasan/report.c:420 kasan_report+0x10b/0x140 mm/kasan/report.c:524 get_unaligned_be16 include/asm-generic/unaligned.h:57 [inline] aqc_raw_event+0x35c/0x1830 drivers/hwmon/aquacomputer_d5next.c:721 hid_input_report+0x3fe/0x4f0 drivers/hid/hid-core.c:2122 hid_irq_in+0x434/0x690 drivers/hid/usbhid/hid-core.c:284 __usb_hcd_giveback_urb+0x35d/0x520 drivers/usb/core/hcd.c:1673 dummy_timer+0xa21/0x3420 drivers/usb/gadget/udc/dummy_hcd.c:2004 __run_hrtimer kernel/time/hrtimer.c:1751 [inline] __hrtimer_run_queues+0x522/0xc90 kernel/time/hrtimer.c:1815 hrtimer_run_softirq+0x173/0x290 kernel/time/hrtimer.c:1832 handle_softirqs+0x291/0x910 kernel/softirq.c:596 run_ksoftirqd+0xa4/0x100 kernel/softirq.c:968 smpboot_thread_fn+0x667/0xa30 kernel/smpboot.c:164 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Allocated by task 4320: kasan_save_stack mm/kasan/common.c:46 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:53 ____kasan_kmalloc mm/kasan/common.c:375 [inline] __kasan_kmalloc+0x8e/0xa0 mm/kasan/common.c:384 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:936 [inline] __kmalloc+0xb3/0x240 mm/slab_common.c:949 hid_alloc_buffers drivers/hid/usbhid/hid-core.c:855 [inline] usbhid_start+0x7a3/0x2090 drivers/hid/usbhid/hid-core.c:1104 hid_hw_start+0x5b/0x100 drivers/hid/hid-core.c:2335 aqc_probe+0x101/0x13a0 drivers/hwmon/aquacomputer_d5next.c:866 hid_device_probe+0x253/0x350 drivers/hid/hid-core.c:2671 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x24a/0xb40 drivers/base/dd.c:638 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:804 driver_probe_device+0x4f/0x420 drivers/base/dd.c:834 __device_attach_driver+0x2c6/0x510 drivers/base/dd.c:962 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429 __device_attach+0x2a7/0x480 drivers/base/dd.c:1034 bus_probe_device+0xba/0x1d0 drivers/base/bus.c:489 device_add+0xbcf/0x1050 drivers/base/core.c:3712 hid_add_device+0x361/0x500 drivers/hid/hid-core.c:2823 usbhid_probe+0xc3f/0x1010 drivers/hid/usbhid/hid-core.c:1442 usb_probe_interface+0x5be/0xae0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x24a/0xb40 drivers/base/dd.c:638 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:804 driver_probe_device+0x4f/0x420 drivers/base/dd.c:834 __device_attach_driver+0x2c6/0x510 drivers/base/dd.c:962 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429 __device_attach+0x2a7/0x480 drivers/base/dd.c:1034 bus_probe_device+0xba/0x1d0 drivers/base/bus.c:489 device_add+0xbcf/0x1050 drivers/base/core.c:3712 usb_set_configuration+0x19d5/0x2030 drivers/usb/core/message.c:2223 usb_generic_driver_probe+0x89/0x150 drivers/usb/core/generic.c:238 usb_probe_device+0x126/0x250 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x24a/0xb40 drivers/base/dd.c:638 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:804 driver_probe_device+0x4f/0x420 drivers/base/dd.c:834 __device_attach_driver+0x2c6/0x510 drivers/base/dd.c:962 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429 __device_attach+0x2a7/0x480 drivers/base/dd.c:1034 bus_probe_device+0xba/0x1d0 drivers/base/bus.c:489 device_add+0xbcf/0x1050 drivers/base/core.c:3712 usb_new_device+0xa01/0x15e0 drivers/usb/core/hub.c:2659 hub_port_connect drivers/usb/core/hub.c:5517 [inline] hub_port_connect_change drivers/usb/core/hub.c:5657 [inline] port_event drivers/usb/core/hub.c:5817 [inline] hub_event+0x2b2f/0x5200 drivers/usb/core/hub.c:5899 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 The buggy address belongs to the object at ffff88801cb9f600 which belongs to the cache kmalloc-96 of size 96 The buggy address is located 87 bytes inside of 96-byte region [ffff88801cb9f600, ffff88801cb9f660) The buggy address belongs to the physical page: page:ffffea000072e7c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88801cb9fa00 pfn:0x1cb9f flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffff8880174404c8 ffffea0000bb6d88 ffff888017441780 raw: ffff88801cb9fa00 000000000020001e 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY), pid 4320, tgid 4320 (kworker/0:7), ts 93792493391, free_ts 93790260849 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2560 prep_new_page mm/page_alloc.c:2567 [inline] get_page_from_freelist+0x206b/0x2180 mm/page_alloc.c:4358 __alloc_pages+0x1ec/0x4f0 mm/page_alloc.c:5658 alloc_slab_page+0x5d/0x180 mm/slub.c:1799 allocate_slab mm/slub.c:1944 [inline] new_slab+0x87/0x2d0 mm/slub.c:1997 ___slab_alloc+0xbc5/0x1240 mm/slub.c:3154 __slab_alloc mm/slub.c:3240 [inline] slab_alloc_node mm/slub.c:3325 [inline] __kmem_cache_alloc_node+0x126/0x270 mm/slub.c:3398 kmalloc_trace+0x26/0xe0 mm/slab_common.c:1026 kmalloc include/linux/slab.h:563 [inline] dst_cow_metrics_generic+0x52/0x1b0 net/core/dst.c:202 dst_metrics_write_ptr include/net/dst.h:119 [inline] dst_metric_set include/net/dst.h:180 [inline] icmp6_dst_alloc+0x2d4/0x490 net/ipv6/route.c:3325 mld_sendpack+0x71c/0xe10 net/ipv6/mcast.c:1842 mld_send_cr net/ipv6/mcast.c:2152 [inline] mld_ifc_work+0x83a/0xab0 net/ipv6/mcast.c:2690 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1487 [inline] free_pcp_prepare mm/page_alloc.c:1537 [inline] free_unref_page_prepare+0x8e5/0x9e0 mm/page_alloc.c:3414 free_unref_page+0x2e/0x3f0 mm/page_alloc.c:3509 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x144/0x160 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x1e/0x80 mm/kasan/common.c:306 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x4b/0x490 mm/slab.h:737 slab_alloc_node mm/slub.c:3359 [inline] __kmem_cache_alloc_node+0x19d/0x270 mm/slub.c:3398 kmalloc_trace+0x26/0xe0 mm/slab_common.c:1026 kmalloc include/linux/slab.h:563 [inline] kzalloc include/linux/slab.h:699 [inline] ipv6_add_addr+0x42d/0xfc0 net/ipv6/addrconf.c:1115 addrconf_add_linklocal+0x26f/0x6d0 net/ipv6/addrconf.c:3264 addrconf_addr_gen+0x55e/0x6a0 net/ipv6/addrconf.c:3395 addrconf_dev_config net/ipv6/addrconf.c:3440 [inline] addrconf_init_auto_addrs+0x6f7/0xaa0 net/ipv6/addrconf.c:3519 addrconf_notify+0xacd/0xf60 net/ipv6/addrconf.c:3692 notifier_call_chain kernel/notifier.c:87 [inline] raw_notifier_call_chain+0xcb/0x160 kernel/notifier.c:455 call_netdevice_notifiers_extack net/core/dev.c:2052 [inline] call_netdevice_notifiers net/core/dev.c:2066 [inline] __dev_notify_flags+0x1a7/0x310 net/core/dev.c:8715 dev_change_flags+0xda/0x1a0 net/core/dev.c:8753 Memory state around the buggy address: ffff88801cb9f500: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff88801cb9f580: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff88801cb9f600: 00 00 00 00 00 00 00 00 01 fc fc fc fc fc fc fc ^ ffff88801cb9f680: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff88801cb9f700: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ==================================================================