==================================================================
BUG: KASAN: slab-out-of-bounds in get_unaligned_be16 include/linux/unaligned.h:48 [inline]
BUG: KASAN: slab-out-of-bounds in aqc_raw_event+0x3a6/0x2930 drivers/hwmon/aquacomputer_d5next.c:1345
Read of size 2 at addr ffff888034da90d7 by task sshd-session/5626
CPU: 0 UID: 0 PID: 5626 Comm: sshd-session Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
print_address_description+0x55/0x1e0 mm/kasan/report.c:378
print_report+0x58/0x70 mm/kasan/report.c:482
kasan_report+0x117/0x150 mm/kasan/report.c:595
get_unaligned_be16 include/linux/unaligned.h:48 [inline]
aqc_raw_event+0x3a6/0x2930 drivers/hwmon/aquacomputer_d5next.c:1345
__hid_input_report+0x41c/0x580 drivers/hid/hid-core.c:2175
hid_irq_in+0x492/0x710 drivers/hid/usbhid/hid-core.c:287
__usb_hcd_giveback_urb+0x378/0x540 drivers/usb/core/hcd.c:1657
dummy_timer+0xa91/0x4cf0 drivers/usb/gadget/udc/dummy_hcd.c:2019
__run_hrtimer kernel/time/hrtimer.c:2068 [inline]
__hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2125
hrtimer_run_softirq+0x1e3/0x2e0 kernel/time/hrtimer.c:2142
handle_softirqs+0x226/0x860 kernel/softirq.c:645
__do_softirq kernel/softirq.c:679 [inline]
invoke_softirq kernel/softirq.c:519 [inline]
__irq_exit_rcu+0xcb/0x220 kernel/softirq.c:767
irq_exit_rcu+0x9/0x30 kernel/softirq.c:784
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:unwind_next_frame+0xb6f/0x2550 arch/x86/include/asm/stacktrace.h:-1
Code: 24 4d 8b 7e 08 49 8d 7e 10 49 89 fc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df 41 80 3c 04 00 74 09 e8 f5 8d bf 00 4c 8b 04 24 <49> 8d 50 f8 4d 8b 6e 10 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24
RSP: 0018:ffffc900039a7248 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 1ffff92000734e6a RCX: ffffffff90b4ade8
RDX: ffffffff9133ff2c RSI: 0000000000000002 RDI: ffffc900039a7358
RBP: 1ffffffff2267fe5 R08: ffffc900039a7348 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8ef5ca60 R12: 1ffff92000734e6b
R13: ffffffff9133ff28 R14: ffffc900039a7348 R15: ffffc900039a0000
__unwind_start+0x514/0x660 arch/x86/kernel/unwind_orc.c:787
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0xe3/0x150 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
unpoison_slab_object mm/kasan/common.c:340 [inline]
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:366
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4683 [inline]
slab_alloc_node mm/slub.c:4996 [inline]
kmem_cache_alloc_node_noprof+0x354/0x610 mm/slub.c:5068
kmalloc_reserve net/core/skbuff.c:615 [inline]
__alloc_skb+0x27a/0x7a0 net/core/skbuff.c:715
alloc_skb_fclone include/linux/skbuff.h:1434 [inline]
tcp_stream_alloc_skb+0x3f/0x580 net/ipv4/tcp.c:931
tcp_sendmsg_locked+0x1437/0x55c0 net/ipv4/tcp.c:1256
tcp_sendmsg+0x2f/0x50 net/ipv4/tcp.c:1451
sock_sendmsg_nosec+0x10e/0x180 net/socket.c:801
__sock_sendmsg net/socket.c:815 [inline]
sock_write_iter+0x2de/0x3e0 net/socket.c:1266
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f39ed6a7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffe583f21f0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f39edd49300 RCX: 00007f39ed6a7407
RDX: 0000000000000064 RSI: 0000559009ea5c30 RDI: 0000000000000004
RBP: 0000559009e93050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
R13: 00007ffe583f2340 R14: 0000000000000000 R15: 0000000000000004
Allocated by task 9:
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
__kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415
kasan_kmalloc include/linux/kasan.h:263 [inline]
__do_kmalloc_node mm/slub.c:5414 [inline]
__kmalloc_noprof+0x36b/0x720 mm/slub.c:5439
hid_alloc_buffers drivers/hid/usbhid/hid-core.c:859 [inline]
usbhid_start+0x7ab/0x20a0 drivers/hid/usbhid/hid-core.c:1108
hid_hw_start+0x65/0x120 drivers/hid/hid-core.c:2431
aqc_probe+0x109/0x27f0 drivers/hwmon/aquacomputer_d5next.c:1536
__hid_device_probe drivers/hid/hid-core.c:2839 [inline]
hid_device_probe+0x46a/0x870 drivers/hid/hid-core.c:2878
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x254/0xae0 drivers/base/dd.c:706
__driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
__device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
__device_attach+0x2c4/0x450 drivers/base/dd.c:1098
device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
device_add+0x7d7/0xb80 drivers/base/core.c:3776
hid_add_device+0x272/0x3e0 drivers/hid/hid-core.c:3065
usbhid_probe+0x9d4/0xde0 drivers/hid/usbhid/hid-core.c:1452
usb_probe_interface+0x788/0xe50 drivers/usb/core/driver.c:399
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x254/0xae0 drivers/base/dd.c:706
__driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
__device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
__device_attach+0x2c4/0x450 drivers/base/dd.c:1098
device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
device_add+0x7d7/0xb80 drivers/base/core.c:3776
usb_set_configuration+0x1ad8/0x2180 drivers/usb/core/message.c:2268
usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
usb_probe_device+0x1c3/0x3b0 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x254/0xae0 drivers/base/dd.c:706
__driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
__device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
__device_attach+0x2c4/0x450 drivers/base/dd.c:1098
device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
device_add+0x7d7/0xb80 drivers/base/core.c:3776
usb_new_device+0x9aa/0x1690 drivers/usb/core/hub.c:2708
hub_port_connect drivers/usb/core/hub.c:5580 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5720 [inline]
port_event drivers/usb/core/hub.c:5884 [inline]
hub_event+0x28e8/0x4d30 drivers/usb/core/hub.c:5966
process_one_work kernel/workqueue.c:3387 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3470
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3551
kthread+0x38b/0x480 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
The buggy address belongs to the object at ffff888034da9080
which belongs to the cache kmalloc-96 of size 96
The buggy address is located 22 bytes to the right of
allocated 65-byte region [ffff888034da9080, ffff888034da90c1)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x34da9
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88813ff18280 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000200020 00000000f5000000 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 0xd2cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 21283115689
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
prep_new_page mm/page_alloc.c:1879 [inline]
get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
__alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
alloc_slab_page mm/slub.c:3347 [inline]
allocate_slab+0x7d/0x620 mm/slub.c:3462
new_slab mm/slub.c:3513 [inline]
refill_objects+0x2d5/0x350 mm/slub.c:7410
refill_sheaf mm/slub.c:2885 [inline]
__pcs_replace_empty_main+0x2c8/0x6c0 mm/slub.c:4774
alloc_from_pcs mm/slub.c:4850 [inline]
slab_alloc_node mm/slub.c:4984 [inline]
__do_kmalloc_node mm/slub.c:5413 [inline]
__kmalloc_node_track_caller_noprof+0x548/0x720 mm/slub.c:5545
__do_krealloc mm/slub.c:6937 [inline]
krealloc_node_align_noprof+0x19a/0x390 mm/slub.c:6958
_krealloc_array_noprof include/linux/slab.h:1235 [inline]
add_sysfs_param+0x15f/0xb80 kernel/params.c:658
kernel_add_sysfs_param+0x7f/0xe0 kernel/params.c:799
param_sysfs_builtin+0x199/0x250 kernel/params.c:838
param_sysfs_builtin_init+0x23/0x30 kernel/params.c:974
do_one_initcall+0x250/0x870 init/main.c:1359
do_initcall_level+0x10a/0x1a0 init/main.c:1421
do_initcalls+0x59/0xa0 init/main.c:1437
kernel_init_freeable+0x29d/0x3e0 init/main.c:1672
page_owner free stack trace missing
Memory state around the buggy address:
ffff888034da8f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff888034da9000: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
>ffff888034da9080: 00 00 00 00 00 00 00 00 01 fc fc fc fc fc fc fc
^
ffff888034da9100: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
ffff888034da9180: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
==================================================================
----------------
Code disassembly (best guess):
0: 24 4d and $0x4d,%al
2: 8b 7e 08 mov 0x8(%rsi),%edi
5: 49 8d 7e 10 lea 0x10(%r14),%rdi
9: 49 89 fc mov %rdi,%r12
c: 49 c1 ec 03 shr $0x3,%r12
10: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
17: fc ff df
1a: 41 80 3c 04 00 cmpb $0x0,(%r12,%rax,1)
1f: 74 09 je 0x2a
21: e8 f5 8d bf 00 call 0xbf8e1b
26: 4c 8b 04 24 mov (%rsp),%r8
* 2a: 49 8d 50 f8 lea -0x8(%r8),%rdx <-- trapping instruction
2e: 4d 8b 6e 10 mov 0x10(%r14),%r13
32: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
39: fc ff df
3c: 48 rex.W
3d: 8b .byte 0x8b
3e: 4c rex.WR
3f: 24 .byte 0x24