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BUG: KASAN: slab-out-of-bounds in MON_OFF2HDR drivers/usb/mon/mon_bin.c:207 [inline]
BUG: KASAN: slab-out-of-bounds in mon_bin_flush+0x26f/0x290 drivers/usb/mon/mon_bin.c:884
Read of size 8 at addr ffff8880441952f8 by task syz-executor.1/19932

CPU: 0 PID: 19932 Comm: syz-executor.1 Not tainted 6.0.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:317 [inline]
 print_report.cold+0x2ba/0x719 mm/kasan/report.c:433
 kasan_report+0xb1/0x1e0 mm/kasan/report.c:495
 MON_OFF2HDR drivers/usb/mon/mon_bin.c:207 [inline]
 mon_bin_flush+0x26f/0x290 drivers/usb/mon/mon_bin.c:884
 mon_bin_ioctl+0x198/0xcc0 drivers/usb/mon/mon_bin.c:1091
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fbe28289409
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbe29382168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fbe2839c120 RCX: 00007fbe28289409
RDX: 00000000200005c0 RSI: 00000000c0109207 RDI: 0000000000000004
RBP: 00007fbe282e4367 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe288cfb1f R14: 00007fbe29382300 R15: 0000000000022000
 </TASK>

Allocated by task 0:
(stack is not available)

Freed by task 4179:
 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
 kasan_set_track+0x21/0x30 mm/kasan/common.c:45
 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
 ____kasan_slab_free mm/kasan/common.c:367 [inline]
 ____kasan_slab_free+0x166/0x1c0 mm/kasan/common.c:329
 kasan_slab_free include/linux/kasan.h:200 [inline]
 slab_free_hook mm/slub.c:1754 [inline]
 slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1780
 slab_free mm/slub.c:3534 [inline]
 kfree+0xe2/0x580 mm/slub.c:4562
 skb_free_head+0xac/0x110 net/core/skbuff.c:662
 skb_release_data+0x5f1/0x870 net/core/skbuff.c:691
 skb_release_all net/core/skbuff.c:756 [inline]
 __kfree_skb net/core/skbuff.c:770 [inline]
 consume_skb net/core/skbuff.c:934 [inline]
 consume_skb+0xc2/0x160 net/core/skbuff.c:928
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:815 [inline]
 nsim_dev_trap_report_work+0x871/0xc50 drivers/net/netdevsim/dev.c:844
 process_one_work+0x991/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

The buggy address belongs to the object at ffff888044194000
 which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 760 bytes to the right of
 4096-byte region [ffff888044194000, ffff888044195000)

The buggy address belongs to the physical page:
page:ffffea0001106400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x44190
head:ffffea0001106400 order:3 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888011842140
raw: 0000000000000000 0000000000040004 00000001ffffffff 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 0x1d2a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 4179, tgid 4179 (kworker/0:10), ts 702294865549, free_ts 701186800343
 prep_new_page mm/page_alloc.c:2532 [inline]
 get_page_from_freelist+0x109b/0x2ce0 mm/page_alloc.c:4283
 __alloc_pages+0x1c7/0x510 mm/page_alloc.c:5515
 alloc_pages+0x1a6/0x270 mm/mempolicy.c:2270
 alloc_slab_page mm/slub.c:1824 [inline]
 allocate_slab+0x27e/0x3d0 mm/slub.c:1969
 new_slab mm/slub.c:2029 [inline]
 ___slab_alloc+0x7f1/0xe10 mm/slub.c:3031
 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3118
 slab_alloc_node mm/slub.c:3209 [inline]
 __kmalloc_node_track_caller+0x2f2/0x380 mm/slub.c:4955
 kmalloc_reserve net/core/skbuff.c:362 [inline]
 __alloc_skb+0xd9/0x2f0 net/core/skbuff.c:434
 alloc_skb include/linux/skbuff.h:1257 [inline]
 nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:742 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:799 [inline]
 nsim_dev_trap_report_work+0x2ad/0xc50 drivers/net/netdevsim/dev.c:844
 process_one_work+0x991/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1449 [inline]
 free_pcp_prepare+0x5e4/0xd20 mm/page_alloc.c:1499
 free_unref_page_prepare mm/page_alloc.c:3380 [inline]
 free_unref_page+0x19/0x4d0 mm/page_alloc.c:3476
 __unfreeze_partials+0x17c/0x1a0 mm/slub.c:2548
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0xa2/0xc0 mm/kasan/common.c:447
 kasan_slab_alloc include/linux/kasan.h:224 [inline]
 slab_post_alloc_hook mm/slab.h:727 [inline]
 slab_alloc_node mm/slub.c:3243 [inline]
 kmem_cache_alloc_node+0x2b1/0x3f0 mm/slub.c:3293
 __alloc_skb+0x210/0x2f0 net/core/skbuff.c:422
 alloc_skb include/linux/skbuff.h:1257 [inline]
 nlmsg_new include/net/netlink.h:953 [inline]
 inet_netconf_notify_devconf+0xdd/0x260 net/ipv4/devinet.c:2101
 __devinet_sysctl_unregister net/ipv4/devinet.c:2613 [inline]
 devinet_sysctl_unregister net/ipv4/devinet.c:2637 [inline]
 inetdev_destroy net/ipv4/devinet.c:327 [inline]
 inetdev_event+0xcd4/0x1610 net/ipv4/devinet.c:1602
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:87
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1945
 call_netdevice_notifiers_extack net/core/dev.c:1983 [inline]
 call_netdevice_notifiers net/core/dev.c:1997 [inline]
 unregister_netdevice_many+0xa62/0x1980 net/core/dev.c:10862
 ip_tunnel_delete_nets+0x39f/0x5b0 net/ipv4/ip_tunnel.c:1126
 ops_exit_list+0x125/0x170 net/core/net_namespace.c:168
 cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:595

Memory state around the buggy address:
 ffff888044195180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888044195200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888044195280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                                ^
 ffff888044195300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888044195380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
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