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BUG: KASAN: stack-out-of-bounds in __get_unaligned_cpu32 include/linux/unaligned/packed_struct.h:19 [inline]
BUG: KASAN: stack-out-of-bounds in jhash+0x200/0x740 include/linux/jhash.h:82
Read of size 4 at addr ffffc900046ff5a0 by task syz-executor.2/9919

CPU: 1 PID: 9919 Comm: syz-executor.2 Not tainted 6.8.0-syzkaller-05236-g443574b03387 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:488
 kasan_report+0x143/0x180 mm/kasan/report.c:601
 __get_unaligned_cpu32 include/linux/unaligned/packed_struct.h:19 [inline]
 jhash+0x200/0x740 include/linux/jhash.h:82
 hash+0x339/0x410 kernel/bpf/bloom_filter.c:31
 bloom_map_peek_elem+0xb2/0x1b0 kernel/bpf/bloom_filter.c:43
 bpf_prog_00798911c748094f+0x42/0x46
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
 bpf_trace_run8+0x2ec/0x500 kernel/trace/bpf_trace.c:2426
 __bpf_trace_jbd2_handle_stats+0x47/0x60 include/trace/events/jbd2.h:210
 trace_jbd2_handle_stats include/trace/events/jbd2.h:210 [inline]
 jbd2_journal_stop+0xd3d/0xdc0 fs/jbd2/transaction.c:1869
 __ext4_journal_stop+0xfd/0x1a0 fs/ext4/ext4_jbd2.c:134
 ext4_create+0x2f9/0x550 fs/ext4/namei.c:2843
 lookup_open fs/namei.c:3498 [inline]
 open_last_lookups fs/namei.c:3567 [inline]
 path_openat+0x1425/0x3240 fs/namei.c:3797
 do_filp_open+0x235/0x490 fs/namei.c:3827
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1407
 do_sys_open fs/open.c:1422 [inline]
 __do_sys_openat fs/open.c:1438 [inline]
 __se_sys_openat fs/open.c:1433 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1433
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7ff8b4a7dea9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff8b581c0c8 EFLAGS: 00000246
 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ff8b4babf80 RCX: 00007ff8b4a7dea9
RDX: 00000000000026e1 RSI: 0000000020000180 RDI: ffffffffffffff9c
RBP: 00007ff8b4aca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007ff8b4babf80 R15: 00007ffe62a24db8
 </TASK>

The buggy address belongs to stack of task syz-executor.2/9919
 and is located at offset 0 in frame:
 bpf_trace_run8+0x0/0x500

This frame has 1 object:
 [32, 96) 'args'

The buggy address belongs to the virtual mapping at
 [ffffc900046f8000, ffffc90004701000) created by:
 copy_process+0x5d1/0x3df0 kernel/fork.c:2219

The buggy address belongs to the physical page:
page:ffffea0000926640 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x24999
memcg:ffff88802d5a2382
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff ffff88802d5a2382
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2dc2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_ZERO), pid 2, tgid 2 (kthreadd), ts 57426596830, free_ts 57403798339
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1ea/0x210 mm/page_alloc.c:1533
 prep_new_page mm/page_alloc.c:1540 [inline]
 get_page_from_freelist+0x33ea/0x3580 mm/page_alloc.c:3311
 __alloc_pages+0x256/0x680 mm/page_alloc.c:4569
 alloc_pages_mpol+0x3de/0x650 mm/mempolicy.c:2133
 vm_area_alloc_pages mm/vmalloc.c:3135 [inline]
 __vmalloc_area_node mm/vmalloc.c:3211 [inline]
 __vmalloc_node_range+0x9a4/0x14a0 mm/vmalloc.c:3392
 alloc_thread_stack_node kernel/fork.c:309 [inline]
 dup_task_struct+0x3e9/0x7d0 kernel/fork.c:1114
 copy_process+0x5d1/0x3df0 kernel/fork.c:2219
 kernel_clone+0x21e/0x8d0 kernel/fork.c:2796
 kernel_thread+0x1bc/0x240 kernel/fork.c:2858
 create_kthread kernel/kthread.c:411 [inline]
 kthreadd+0x60d/0x810 kernel/kthread.c:764
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
page last free pid 5083 tgid 5083 stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1140 [inline]
 free_unref_page_prepare+0x968/0xa90 mm/page_alloc.c:2346
 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2486
 discard_slab mm/slub.c:2453 [inline]
 __put_partials+0xeb/0x130 mm/slub.c:2922
 put_cpu_partial+0x17c/0x250 mm/slub.c:2997
 __slab_free+0x302/0x410 mm/slub.c:4166
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x5e/0xc0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3813 [inline]
 slab_alloc_node mm/slub.c:3860 [inline]
 kmalloc_trace+0x16d/0x360 mm/slub.c:4007
 kmalloc include/linux/slab.h:590 [inline]
 kzalloc include/linux/slab.h:711 [inline]
 ref_tracker_alloc+0x14b/0x490 lib/ref_tracker.c:203
 __netdev_tracker_alloc include/linux/netdevice.h:4064 [inline]
 netdev_hold include/linux/netdevice.h:4093 [inline]
 netdev_queue_add_kobject net/core/net-sysfs.c:1783 [inline]
 netdev_queue_update_kobjects+0x186/0x5f0 net/core/net-sysfs.c:1838
 register_queue_kobjects net/core/net-sysfs.c:1900 [inline]
 netdev_register_kobject+0x265/0x320 net/core/net-sysfs.c:2140
 register_netdevice+0x1208/0x1a20 net/core/dev.c:10274
 veth_newlink+0x628/0xcd0 drivers/net/veth.c:1846
 rtnl_newlink_create net/core/rtnetlink.c:3494 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3714 [inline]
 rtnl_newlink+0x158f/0x20a0 net/core/rtnetlink.c:3727
 rtnetlink_rcv_msg+0x89b/0x10d0 net/core/rtnetlink.c:6595

Memory state around the buggy address:
 ffffc900046ff480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc900046ff500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc900046ff580: 00 00 00 00 f1 f1 f1 f1 00 00 00 00 00 00 00 00
                               ^
 ffffc900046ff600: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc900046ff680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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