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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+0x1b4/0x740 include/linux/jhash.h:81
Read of size 4 at addr ffffc9000556f380 by task syz-executor.4/8773

CPU: 1 PID: 8773 Comm: syz-executor.4 Not tainted 6.8.0-syzkaller-05243-g14bb1e8c8d4a #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+0x1b4/0x740 include/linux/jhash.h:81
 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:1233 [inline]
 __bpf_prog_run include/linux/filter.h:660 [inline]
 bpf_prog_run include/linux/filter.h:674 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2396 [inline]
 bpf_trace_run5+0x51e/0x5d0 kernel/trace/bpf_trace.c:2440
 trace_ext4_remove_blocks include/trace/events/ext4.h:1984 [inline]
 ext4_remove_blocks fs/ext4/extents.c:2463 [inline]
 ext4_ext_rm_leaf fs/ext4/extents.c:2686 [inline]
 ext4_ext_remove_space+0x3042/0x4db0 fs/ext4/extents.c:2934
 ext4_punch_hole+0x798/0xbf0 fs/ext4/inode.c:3994
 ext4_fallocate+0x322/0x1fa0 fs/ext4/extents.c:4741
 vfs_fallocate+0x564/0x6c0 fs/open.c:331
 do_vfs_ioctl+0x2592/0x2e50 fs/ioctl.c:883
 __do_sys_ioctl fs/ioctl.c:902 [inline]
 __se_sys_ioctl+0x81/0x170 fs/ioctl.c:890
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f8dd8c7de69
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:00007f8dd9ab70c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f8dd8dabf80 RCX: 00007f8dd8c7de69
RDX: 0000000020000280 RSI: 000000004030582b RDI: 0000000000000007
RBP: 00007f8dd8cca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f8dd8dabf80 R15: 00007ffefba5d418
 </TASK>

The buggy address belongs to stack of task syz-executor.4/8773
 and is located at offset 0 in frame:
 bpf_trace_run5+0x0/0x5d0

This frame has 2 objects:
 [32, 48) 'run_ctx.i'
 [64, 104) 'args'

The buggy address belongs to the virtual mapping at
 [ffffc90005568000, ffffc90005571000) created by:
 copy_process+0x5d1/0x3df0 kernel/fork.c:2219

The buggy address belongs to the physical page:
page:ffffea00017d1c80 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5f472
memcg:ffff88802b9ce782
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff ffff88802b9ce782
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102dc2(GFP_HIGHUSER|__GFP_NOWARN|__GFP_ZERO), pid 8772, tgid 8772 (syz-executor.4), ts 194770761268, free_ts 194391922432
 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
 __do_sys_clone3 kernel/fork.c:3097 [inline]
 __se_sys_clone3+0x2cb/0x350 kernel/fork.c:3081
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
page last free pid 8760 tgid 8760 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_list+0x5a3/0x850 mm/page_alloc.c:2532
 release_pages+0x2744/0x2a80 mm/swap.c:1042
 tlb_batch_pages_flush mm/mmu_gather.c:98 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:293 [inline]
 tlb_flush_mmu+0x34d/0x4e0 mm/mmu_gather.c:300
 tlb_finish_mmu+0xd4/0x200 mm/mmu_gather.c:392
 exit_mmap+0x4b6/0xd40 mm/mmap.c:3300
 __mmput+0x115/0x3c0 kernel/fork.c:1345
 exit_mm+0x220/0x310 kernel/exit.c:569
 do_exit+0x99e/0x27e0 kernel/exit.c:865
 do_group_exit+0x207/0x2c0 kernel/exit.c:1027
 __do_sys_exit_group kernel/exit.c:1038 [inline]
 __se_sys_exit_group kernel/exit.c:1036 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75

Memory state around the buggy address:
 ffffc9000556f280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc9000556f300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc9000556f380: f1 f1 f1 f1 00 00 f2 f2 00 00 00 00 00 f3 f3 f3
                   ^
 ffffc9000556f400: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc9000556f480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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