==================================================================
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 include/linux/jhash.h:82 [inline]
BUG: KASAN: stack-out-of-bounds in hash+0x465/0xc20 kernel/bpf/bloom_filter.c:39
Read of size 4 at addr ffffc90000ef7140 by task syz-executor.2/2443

CPU: 0 PID: 2443 Comm: syz-executor.2 Not tainted 6.1.75-syzkaller-00026-g68c821783c76 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0x158/0x4e0 mm/kasan/report.c:427
 kasan_report+0x13c/0x170 mm/kasan/report.c:531
 __asan_report_load_n_noabort+0xf/0x20 mm/kasan/report_generic.c:361
 __get_unaligned_cpu32 include/linux/unaligned/packed_struct.h:19 [inline]
 jhash include/linux/jhash.h:82 [inline]
 hash+0x465/0xc20 kernel/bpf/bloom_filter.c:39
 bloom_map_peek_elem+0xac/0x1a0 kernel/bpf/bloom_filter.c:51
 bpf_prog_583c8da43158804c+0x42/0x46
 bpf_dispatcher_nop_func include/linux/bpf.h:987 [inline]
 __bpf_prog_run include/linux/filter.h:600 [inline]
 bpf_prog_run include/linux/filter.h:607 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2275 [inline]
 bpf_trace_run3+0x177/0x2e0 kernel/trace/bpf_trace.c:2315
 __bpf_trace_ext4_da_write_pages+0x2d/0x40 include/trace/events/ext4.h:472
 __traceiter_ext4_da_write_pages+0x81/0xd0 include/trace/events/ext4.h:472
 trace_ext4_da_write_pages include/trace/events/ext4.h:472 [inline]
 ext4_writepages+0x31e7/0x3fd0 fs/ext4/inode.c:2841
 do_writepages+0x385/0x620 mm/page-writeback.c:2472
 filemap_fdatawrite_wbc+0x153/0x1b0 mm/filemap.c:402
 __filemap_fdatawrite_range mm/filemap.c:435 [inline]
 file_write_and_wait_range+0x1ca/0x2b0 mm/filemap.c:788
 ext4_sync_file+0x1a2/0xa50 fs/ext4/fsync.c:151
 vfs_fsync_range+0x17b/0x190 fs/sync.c:188
 generic_write_sync include/linux/fs.h:2951 [inline]
 ext4_buffered_write_iter+0x587/0x640 fs/ext4/file.c:292
 ext4_file_write_iter+0x194/0x1570
 call_write_iter include/linux/fs.h:2258 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x902/0xeb0 fs/read_write.c:584
 ksys_write+0x199/0x2c0 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:646
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fef8147cee9
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:00007fef8229f0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fef815abf80 RCX: 00007fef8147cee9
RDX: 0000000000040010 RSI: 0000000020000180 RDI: 0000000000000006
RBP: 00007fef814c949e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fef815abf80 R15: 00007ffc23df2498
 </TASK>

The buggy address belongs to stack of task syz-executor.2/2443
 and is located at offset 0 in frame:
 bpf_trace_run3+0x0/0x2e0

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

The buggy address belongs to the virtual mapping at
 [ffffc90000ef0000, ffffc90000ef9000) created by:
 copy_process+0x5c3/0x3530 kernel/fork.c:2199

The buggy address belongs to the physical page:
page:ffffea0004627980 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1189e6
flags: 0x4000000000000000(zone=1)
raw: 4000000000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 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 0x102dc2(GFP_HIGHUSER|__GFP_NOWARN|__GFP_ZERO), pid 312, tgid 312 (syz-executor.1), ts 69027485377, free_ts 68895368212
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x213/0x220 mm/page_alloc.c:2590
 prep_new_page+0x1b/0x110 mm/page_alloc.c:2597
 get_page_from_freelist+0x27ea/0x2870 mm/page_alloc.c:4425
 __alloc_pages+0x3a1/0x780 mm/page_alloc.c:5712
 __vmalloc_area_node mm/vmalloc.c:3062 [inline]
 __vmalloc_node_range+0x89b/0x1540 mm/vmalloc.c:3234
 alloc_thread_stack_node kernel/fork.c:318 [inline]
 dup_task_struct+0x3d6/0x7d0 kernel/fork.c:1080
 copy_process+0x5c3/0x3530 kernel/fork.c:2199
 kernel_clone+0x229/0x890 kernel/fork.c:2786
 __do_sys_clone kernel/fork.c:2929 [inline]
 __se_sys_clone kernel/fork.c:2913 [inline]
 __x64_sys_clone+0x231/0x280 kernel/fork.c:2913
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1498 [inline]
 free_pcp_prepare mm/page_alloc.c:1572 [inline]
 free_unref_page_prepare+0x83d/0x850 mm/page_alloc.c:3498
 free_unref_page+0xb2/0x5c0 mm/page_alloc.c:3594
 free_the_page mm/page_alloc.c:798 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5801
 pcpu_free_pages mm/percpu-vm.c:65 [inline]
 pcpu_depopulate_chunk+0x4df/0x5b0 mm/percpu-vm.c:330
 pcpu_reclaim_populated mm/percpu.c:2193 [inline]
 pcpu_balance_workfn+0x2bb/0xe60 mm/percpu.c:2245
 process_one_work+0x73d/0xcb0 kernel/workqueue.c:2299
 worker_thread+0xa60/0x1260 kernel/workqueue.c:2446
 kthread+0x26d/0x300 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

Memory state around the buggy address:
 ffffc90000ef7000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90000ef7080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90000ef7100: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 f3
                                           ^
 ffffc90000ef7180: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90000ef7200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
BUG: unable to handle page fault for address: ffffc90000ef8000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 100000067 P4D 100000067 PUD 100154067 PMD 120269067 PTE 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 2443 Comm: syz-executor.2 Tainted: G    B              6.1.75-syzkaller-00026-g68c821783c76 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:jhash include/linux/jhash.h:81 [inline]
RIP: 0010:hash+0x2d8/0xc20 kernel/bpf/bloom_filter.c:39
Code: 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 2b 01 00 00 4a 8d 7c 36 07 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 43 01 00 00 <42> 03 5c 36 04 4a 8d 7c 36 08 48 89 f8 48 c1 e8 03 0f b6 04 10 84
RSP: 0018:ffffc90000ef7048 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 00000000d32b08d8 RCX: ffffffff8191d815
RDX: dffffc0000000000 RSI: ffffc90000ef7108 RDI: ffffc90000ef8003
RBP: ffffc90000ef7088 R08: 00000000fffff0fa R09: fffffbfff0f260fd
R10: 0000000000000000 R11: dffffc0000000001 R12: 000000005d494fa8
R13: 00000000fffff0fa R14: 0000000000000ef4 R15: 0000000061cbb118
FS:  00007fef8229f6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90000ef8000 CR3: 000000012fb52000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 bloom_map_peek_elem+0xac/0x1a0 kernel/bpf/bloom_filter.c:51
 bpf_prog_583c8da43158804c+0x42/0x46
 bpf_dispatcher_nop_func include/linux/bpf.h:987 [inline]
 __bpf_prog_run include/linux/filter.h:600 [inline]
 bpf_prog_run include/linux/filter.h:607 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2275 [inline]
 bpf_trace_run3+0x177/0x2e0 kernel/trace/bpf_trace.c:2315
 __bpf_trace_ext4_da_write_pages+0x2d/0x40 include/trace/events/ext4.h:472
 __traceiter_ext4_da_write_pages+0x81/0xd0 include/trace/events/ext4.h:472
 trace_ext4_da_write_pages include/trace/events/ext4.h:472 [inline]
 ext4_writepages+0x31e7/0x3fd0 fs/ext4/inode.c:2841
 do_writepages+0x385/0x620 mm/page-writeback.c:2472
 filemap_fdatawrite_wbc+0x153/0x1b0 mm/filemap.c:402
 __filemap_fdatawrite_range mm/filemap.c:435 [inline]
 file_write_and_wait_range+0x1ca/0x2b0 mm/filemap.c:788
 ext4_sync_file+0x1a2/0xa50 fs/ext4/fsync.c:151
 vfs_fsync_range+0x17b/0x190 fs/sync.c:188
 generic_write_sync include/linux/fs.h:2951 [inline]
 ext4_buffered_write_iter+0x587/0x640 fs/ext4/file.c:292
 ext4_file_write_iter+0x194/0x1570
 call_write_iter include/linux/fs.h:2258 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x902/0xeb0 fs/read_write.c:584
 ksys_write+0x199/0x2c0 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:646
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fef8147cee9
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:00007fef8229f0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fef815abf80 RCX: 00007fef8147cee9
RDX: 0000000000040010 RSI: 0000000020000180 RDI: 0000000000000006
RBP: 00007fef814c949e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fef815abf80 R15: 00007ffc23df2498
 </TASK>
Modules linked in:
CR2: ffffc90000ef8000
---[ end trace 0000000000000000 ]---
RIP: 0010:jhash include/linux/jhash.h:81 [inline]
RIP: 0010:hash+0x2d8/0xc20 kernel/bpf/bloom_filter.c:39
Code: 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 2b 01 00 00 4a 8d 7c 36 07 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 43 01 00 00 <42> 03 5c 36 04 4a 8d 7c 36 08 48 89 f8 48 c1 e8 03 0f b6 04 10 84
RSP: 0018:ffffc90000ef7048 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 00000000d32b08d8 RCX: ffffffff8191d815
RDX: dffffc0000000000 RSI: ffffc90000ef7108 RDI: ffffc90000ef8003
RBP: ffffc90000ef7088 R08: 00000000fffff0fa R09: fffffbfff0f260fd
R10: 0000000000000000 R11: dffffc0000000001 R12: 000000005d494fa8
R13: 00000000fffff0fa R14: 0000000000000ef4 R15: 0000000061cbb118
FS:  00007fef8229f6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90000ef8000 CR3: 000000012fb52000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	89 f8                	mov    %edi,%eax
   2:	48 c1 e8 03          	shr    $0x3,%rax
   6:	0f b6 04 10          	movzbl (%rax,%rdx,1),%eax
   a:	84 c0                	test   %al,%al
   c:	0f 85 2b 01 00 00    	jne    0x13d
  12:	4a 8d 7c 36 07       	lea    0x7(%rsi,%r14,1),%rdi
  17:	48 89 f8             	mov    %rdi,%rax
  1a:	48 c1 e8 03          	shr    $0x3,%rax
  1e:	0f b6 04 10          	movzbl (%rax,%rdx,1),%eax
  22:	84 c0                	test   %al,%al
  24:	0f 85 43 01 00 00    	jne    0x16d
* 2a:	42 03 5c 36 04       	add    0x4(%rsi,%r14,1),%ebx <-- trapping instruction
  2f:	4a 8d 7c 36 08       	lea    0x8(%rsi,%r14,1),%rdi
  34:	48 89 f8             	mov    %rdi,%rax
  37:	48 c1 e8 03          	shr    $0x3,%rax
  3b:	0f b6 04 10          	movzbl (%rax,%rdx,1),%eax
  3f:	84                   	.byte 0x84