==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
BUG: KASAN: slab-use-after-free in atomic_inc include/linux/atomic/atomic-instrumented.h:435 [inline]
BUG: KASAN: slab-use-after-free in usb_anchor_suspend_wakeups drivers/usb/core/urb.c:927 [inline]
BUG: KASAN: slab-use-after-free in usb_anchor_suspend_wakeups+0x28/0x40 drivers/usb/core/urb.c:924
Write of size 4 at addr ffff88802883d910 by task swapper/2/0
CPU: 2 UID: 0 PID: 0 Comm: swapper/2 Not tainted 6.14.0-rc6-syzkaller-g80e54e84911a #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:408 [inline]
print_report+0xc3/0x670 mm/kasan/report.c:521
kasan_report+0xd9/0x110 mm/kasan/report.c:634
check_region_inline mm/kasan/generic.c:183 [inline]
kasan_check_range+0xef/0x1a0 mm/kasan/generic.c:189
instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
atomic_inc include/linux/atomic/atomic-instrumented.h:435 [inline]
usb_anchor_suspend_wakeups drivers/usb/core/urb.c:927 [inline]
usb_anchor_suspend_wakeups+0x28/0x40 drivers/usb/core/urb.c:924
__usb_hcd_giveback_urb+0x223/0x6e0 drivers/usb/core/hcd.c:1636
usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734
dummy_timer+0x17f7/0x3960 drivers/usb/gadget/udc/dummy_hcd.c:1994
__run_hrtimer kernel/time/hrtimer.c:1801 [inline]
__hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1865
hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1882
handle_softirqs+0x213/0x8f0 kernel/softirq.c:561
__do_softirq kernel/softirq.c:595 [inline]
invoke_softirq kernel/softirq.c:435 [inline]
__irq_exit_rcu+0x109/0x170 kernel/softirq.c:662
irq_exit_rcu+0x9/0x30 kernel/softirq.c:678
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline]
RIP: 0010:default_idle+0xf/0x20 arch/x86/kernel/process.c:744
Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 53 00 0f 00 fb f4 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
RSP: 0018:ffffc900001a7e08 EFLAGS: 00000202
RAX: 0000000000087979 RBX: 0000000000000002 RCX: ffffffff8b579469
RDX: 0000000000000000 RSI: ffffffff8b6cfb00 RDI: ffffffff8bd368a0
RBP: ffffed1003b5c488 R08: 0000000000000001 R09: ffffed100d506f85
R10: ffff88806a837c2b R11: 0000000000000000 R12: 0000000000000002
R13: ffff88801dae2440 R14: ffffffff90626310 R15: 0000000000000000
default_idle_call+0x6d/0xb0 kernel/sched/idle.c:117
cpuidle_idle_call kernel/sched/idle.c:185 [inline]
do_idle+0x329/0x3f0 kernel/sched/idle.c:325
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:423
start_secondary+0x222/0x2b0 arch/x86/kernel/smpboot.c:315
common_startup_64+0x13e/0x148
Allocated by task 6657:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
kmalloc_noprof include/linux/slab.h:901 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
usbtmc_open+0xa6/0x9b0 drivers/usb/class/usbtmc.c:175
usb_open+0x186/0x220 drivers/usb/core/file.c:47
chrdev_open+0x237/0x6a0 fs/char_dev.c:414
do_dentry_open+0x735/0x1c40 fs/open.c:956
vfs_open+0x82/0x3f0 fs/open.c:1086
do_open fs/namei.c:3830 [inline]
path_openat+0x1e88/0x2d80 fs/namei.c:3989
do_filp_open+0x20c/0x470 fs/namei.c:4016
do_sys_openat2+0x17a/0x1e0 fs/open.c:1428
do_sys_open fs/open.c:1443 [inline]
__do_sys_openat fs/open.c:1459 [inline]
__se_sys_openat fs/open.c:1454 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1454
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 6657:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2353 [inline]
slab_free mm/slub.c:4609 [inline]
kfree+0x2c4/0x4d0 mm/slub.c:4757
usbtmc_release+0x271/0x380 drivers/usb/class/usbtmc.c:261
__fput+0x3ff/0xb70 fs/file_table.c:464
task_work_run+0x14e/0x250 kernel/task_work.c:227
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x27b/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The buggy address belongs to the object at ffff88802883d800
which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 272 bytes inside of
freed 1024-byte region [ffff88802883d800, ffff88802883dc00)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x28838
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b042dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801b042dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000003 ffffea0000a20e01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x52820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 6329, tgid 6329 (syz-executor), ts 76310604131, free_ts 76307395415
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x181/0x1b0 mm/page_alloc.c:1551
prep_new_page mm/page_alloc.c:1559 [inline]
get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3477
__alloc_frozen_pages_noprof+0x221/0x2470 mm/page_alloc.c:4740
alloc_pages_mpol+0x1fc/0x540 mm/mempolicy.c:2270
alloc_slab_page mm/slub.c:2423 [inline]
allocate_slab mm/slub.c:2587 [inline]
new_slab+0x23d/0x330 mm/slub.c:2640
___slab_alloc+0xc5d/0x1720 mm/slub.c:3826
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3916
__slab_alloc_node mm/slub.c:3991 [inline]
slab_alloc_node mm/slub.c:4152 [inline]
__kmalloc_cache_noprof+0xfa/0x410 mm/slub.c:4320
kmalloc_noprof include/linux/slab.h:901 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
tipc_link_create+0x17a/0x1040 net/tipc/link.c:490
tipc_link_bc_create+0x114/0x480 net/tipc/link.c:564
tipc_bcast_init+0x1c7/0x370 net/tipc/bcast.c:701
tipc_init_net+0x36b/0x430 net/tipc/core.c:84
ops_init+0x1df/0x5f0 net/core/net_namespace.c:138
setup_net+0x21f/0x860 net/core/net_namespace.c:362
copy_net_ns+0x2a6/0x5f0 net/core/net_namespace.c:516
create_new_namespaces+0x3ea/0xad0 kernel/nsproxy.c:110
page last free pid 6304 tgid 6304 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_frozen_pages+0x6db/0xfb0 mm/page_alloc.c:2660
__put_partials+0x14c/0x170 mm/slub.c:3153
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4115 [inline]
slab_alloc_node mm/slub.c:4164 [inline]
__kmalloc_cache_noprof+0x243/0x410 mm/slub.c:4320
kmalloc_noprof include/linux/slab.h:901 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
kobject_uevent_env+0x265/0x1870 lib/kobject_uevent.c:540
__kobject_del+0x168/0x1f0 lib/kobject.c:601
kobject_cleanup lib/kobject.c:680 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x327/0x5a0 lib/kobject.c:737
net_rx_queue_update_kobjects+0x478/0x5f0 net/core/net-sysfs.c:1209
netif_set_real_num_rx_queues+0x169/0x210 net/core/dev.c:3204
veth_init_queues+0x151/0x190 drivers/net/veth.c:1761
veth_newlink+0x416/0x8f0 drivers/net/veth.c:1856
rtnl_newlink_create net/core/rtnetlink.c:3796 [inline]
__rtnl_newlink net/core/rtnetlink.c:3907 [inline]
rtnl_newlink+0xb95/0x1d60 net/core/rtnetlink.c:4022
rtnetlink_rcv_msg+0x95b/0xea0 net/core/rtnetlink.c:6912
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2533
Memory state around the buggy address:
ffff88802883d800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88802883d880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88802883d900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88802883d980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88802883da00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
0: 4c 01 c7 add %r8,%rdi
3: 4c 29 c2 sub %r8,%rdx
6: e9 72 ff ff ff jmp 0xffffff7d
b: 90 nop
c: 90 nop
d: 90 nop
e: 90 nop
f: 90 nop
10: 90 nop
11: 90 nop
12: 90 nop
13: 90 nop
14: 90 nop
15: 90 nop
16: 90 nop
17: 90 nop
18: 90 nop
19: 90 nop
1a: 90 nop
1b: f3 0f 1e fa endbr64
1f: eb 07 jmp 0x28
21: 0f 00 2d 53 00 0f 00 verw 0xf0053(%rip) # 0xf007b
28: fb sti
29: f4 hlt
* 2a: fa cli <-- trapping instruction
2b: c3 ret
2c: cc int3
2d: cc int3
2e: cc int3
2f: cc int3
30: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1)
37: 00 00 00 00
3b: 90 nop
3c: 90 nop
3d: 90 nop
3e: 90 nop
3f: 90 nop