==================================================================
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 ffffc90001f175a0 by task syz-executor.0/1514
CPU: 0 PID: 1514 Comm: syz-executor.0 Not tainted 6.1.75-syzkaller-00023-g0a5aada71cc9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
__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_00798911c748094f+0x3a/0x3e
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_run8+0x1f8/0x330 kernel/trace/bpf_trace.c:2320
__bpf_trace_jbd2_handle_stats+0x4a/0x60 include/trace/events/jbd2.h:210
trace_jbd2_handle_stats include/trace/events/jbd2.h:210 [inline]
jbd2_journal_stop+0xc11/0xc70 fs/jbd2/transaction.c:1859
__ext4_journal_stop+0x111/0x1c0 fs/ext4/ext4_jbd2.c:127
ext4_create+0x2f4/0x550 fs/ext4/namei.c:2847
lookup_open fs/namei.c:3489 [inline]
open_last_lookups fs/namei.c:3557 [inline]
path_openat+0x12ee/0x2d60 fs/namei.c:3787
do_filp_open+0x230/0x480 fs/namei.c:3817
do_sys_openat2+0x13f/0x850 fs/open.c:1341
do_sys_open fs/open.c:1357 [inline]
__do_sys_openat fs/open.c:1373 [inline]
__se_sys_openat fs/open.c:1368 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1368
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: 0033:0x7f159fe7cee9
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:00007f15a0c100c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f159ffac050 RCX: 00007f159fe7cee9
RDX: 00000000000026e1 RSI: 0000000020000240 RDI: ffffffffffffff9c
RBP: 00007f159fec949e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f159ffac050 R15: 00007ffd4f466298
The buggy address belongs to stack of task syz-executor.0/1514
and is located at offset 0 in frame:
bpf_trace_run8+0x0/0x330
This frame has 1 object:
[32, 96) 'args'
The buggy address belongs to the virtual mapping at
[ffffc90001f10000, ffffc90001f19000) created by:
copy_process+0x5c3/0x3530 kernel/fork.c:2199
The buggy address belongs to the physical page:
page:ffffea0004435800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x110d60
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 1510, tgid 1510 (syz-executor.0), ts 47425280295, free_ts 47421504893
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_clone3 kernel/fork.c:3087 [inline]
__se_sys_clone3 kernel/fork.c:3071 [inline]
__x64_sys_clone3+0x35c/0x390 kernel/fork.c:3071
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
__folio_put_small mm/swap.c:105 [inline]
__folio_put+0xaa/0xe0 mm/swap.c:128
folio_put include/linux/mm.h:1422 [inline]
put_page include/linux/mm.h:1474 [inline]
anon_pipe_buf_release+0x187/0x200 fs/pipe.c:138
pipe_buf_release include/linux/pipe_fs_i.h:183 [inline]
pipe_read+0x5a6/0x1040 fs/pipe.c:324
call_read_iter include/linux/fs.h:2252 [inline]
new_sync_read fs/read_write.c:389 [inline]
vfs_read+0x771/0xad0 fs/read_write.c:470
ksys_read+0x199/0x2c0 fs/read_write.c:613
__do_sys_read fs/read_write.c:623 [inline]
__se_sys_read fs/read_write.c:621 [inline]
__x64_sys_read+0x7b/0x90 fs/read_write.c:621
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
Memory state around the buggy address:
ffffc90001f17480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc90001f17500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90001f17580: 00 00 00 00 f1 f1 f1 f1 00 00 00 00 00 00 00 00
^
ffffc90001f17600: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
ffffc90001f17680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
BUG: unable to handle page fault for address: ffffc90001f18000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 100000067 P4D 100000067 PUD 100154067
PMD 11ec7c067 PTE 0
Oops: 0000 [#2] PREEMPT SMP KASAN
CPU: 0 PID: 1514 Comm: syz-executor.0 Tainted: G B D 6.1.75-syzkaller-00023-g0a5aada71cc9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:jhash include/linux/jhash.h:80 [inline]
RIP: 0010:hash+0x2a4/0xc20 kernel/bpf/bloom_filter.c:39
Code: 00 00 00 fc ff df 0f b6 04 10 84 c0 0f 85 ff 00 00 00 4a 8d 7c 36 03 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 17 01 00 00 <46> 03 3c 36 4a 8d 7c 36 04 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0
RSP: 0018:ffffc90001f174a8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 00000000ec4027b1 RCX: ffffffff8191d7b5
RDX: dffffc0000000000 RSI: ffffc90001f17568 RDI: ffffc90001f18003
RBP: ffffc90001f174e8 R08: 00000000fffff55b R09: fffffbfff0f260fd
R10: 0000000000000000 R11: dffffc0000000001 R12: 000000009a0389ce
R13: 00000000fffff55b R14: 0000000000000a98 R15: 00000000e34785d8
FS: 00007f15a0c106c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001f18000 CR3: 000000011bb0b000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
bloom_map_peek_elem+0xac/0x1a0 kernel/bpf/bloom_filter.c:51
bpf_prog_00798911c748094f+0x3a/0x3e
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_run8+0x1f8/0x330 kernel/trace/bpf_trace.c:2320
__bpf_trace_jbd2_handle_stats+0x4a/0x60 include/trace/events/jbd2.h:210
trace_jbd2_handle_stats include/trace/events/jbd2.h:210 [inline]
jbd2_journal_stop+0xc11/0xc70 fs/jbd2/transaction.c:1859
__ext4_journal_stop+0x111/0x1c0 fs/ext4/ext4_jbd2.c:127
ext4_create+0x2f4/0x550 fs/ext4/namei.c:2847
lookup_open fs/namei.c:3489 [inline]
open_last_lookups fs/namei.c:3557 [inline]
path_openat+0x12ee/0x2d60 fs/namei.c:3787
do_filp_open+0x230/0x480 fs/namei.c:3817
do_sys_openat2+0x13f/0x850 fs/open.c:1341
do_sys_open fs/open.c:1357 [inline]
__do_sys_openat fs/open.c:1373 [inline]
__se_sys_openat fs/open.c:1368 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1368
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: 0033:0x7f159fe7cee9
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:00007f15a0c100c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f159ffac050 RCX: 00007f159fe7cee9
RDX: 00000000000026e1 RSI: 0000000020000240 RDI: ffffffffffffff9c
RBP: 00007f159fec949e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f159ffac050 R15: 00007ffd4f466298
Modules linked in:
CR2: ffffc90001f18000
---[ end trace 0000000000000000 ]---
RIP: 0010:jhash include/linux/jhash.h:82 [inline]
RIP: 0010:hash+0x30d/0xc20 kernel/bpf/bloom_filter.c:39
Code: 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 56 01 00 00 4a 8d 7c 36 0b 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 6e 01 00 00 <46> 03 64 36 08 45 29 e7 44 89 e0 c1 c0 04 44 31 f8 41 01 dc 89 c1
RSP: 0018:ffffc90001c97428 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000089ca1f81 RCX: ffffffff8191d875
RDX: 0000000000000000 RSI: ffffc90001c974e8 RDI: ffffc90001c98003
RBP: ffffc90001c97468 R08: 00000000fffff4e3 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000bcef581b
R13: 00000000fffff4e3 R14: 0000000000000b10 R15: 00000000c335f410
FS: 00007f15a0c106c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001f18000 CR3: 000000011bb0b000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess), 5 bytes skipped:
0: df 0f fisttps (%rdi)
2: b6 04 mov $0x4,%dh
4: 10 84 c0 0f 85 ff 00 adc %al,0xff850f(%rax,%rax,8)
b: 00 00 add %al,(%rax)
d: 4a 8d 7c 36 03 lea 0x3(%rsi,%r14,1),%rdi
12: 48 89 f8 mov %rdi,%rax
15: 48 c1 e8 03 shr $0x3,%rax
19: 0f b6 04 10 movzbl (%rax,%rdx,1),%eax
1d: 84 c0 test %al,%al
1f: 0f 85 17 01 00 00 jne 0x13c
* 25: 46 03 3c 36 add (%rsi,%r14,1),%r15d <-- trapping instruction
29: 4a 8d 7c 36 04 lea 0x4(%rsi,%r14,1),%rdi
2e: 48 89 f8 mov %rdi,%rax
31: 48 c1 e8 03 shr $0x3,%rax
35: 0f b6 04 10 movzbl (%rax,%rdx,1),%eax
39: 84 c0 test %al,%al