==================================================================
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 ffffc90000f37980 by task syz-executor588/301
CPU: 0 PID: 301 Comm: syz-executor588 Not tainted 6.1.75-syzkaller-00108-g3ca4271578e1 #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_symlink+0x98e/0xc10 fs/ext4/namei.c:3438
vfs_symlink+0x24e/0x3e0 fs/namei.c:4478
do_symlinkat+0x1ea/0x5a0 fs/namei.c:4507
__do_sys_symlink fs/namei.c:4529 [inline]
__se_sys_symlink fs/namei.c:4527 [inline]
__x64_sys_symlink+0x7e/0x90 fs/namei.c:4527
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: 0033:0x7fa282756f57
Code: 7b 00 00 00 48 8d 35 70 c3 04 00 48 8d 3d 91 c3 04 00 e8 dc 19 fd ff e8 27 1e 00 00 0f 1f 80 00 00 00 00 b8 58 00 00 00 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:00007ffcc8cbbda8 EFLAGS: 00000206 ORIG_RAX: 0000000000000058
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa282756f57
RDX: 0000000000000004 RSI: 00007fa2827a002d RDI: 00007fa2827a0038
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000001
R13: 00007ffcc8cbc148 R14: 00007ffcc8cbbde0 R15: 0000000000000000
The buggy address belongs to stack of task syz-executor588/301
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
[ffffc90000f30000, ffffc90000f39000) created by:
copy_process+0x5c3/0x3530 kernel/fork.c:2199
The buggy address belongs to the physical page:
page:ffffea0004251580 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109456
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 0x2dc2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_ZERO), pid 294, tgid 294 (syz-executor588), ts 21123579220, free_ts 17312168865
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x213/0x220 mm/page_alloc.c:2566
prep_new_page+0x1b/0x110 mm/page_alloc.c:2573
get_page_from_freelist+0x27ea/0x2870 mm/page_alloc.c:4397
__alloc_pages+0x3a1/0x780 mm/page_alloc.c:5684
__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:1474 [inline]
free_pcp_prepare mm/page_alloc.c:1548 [inline]
free_unref_page_prepare+0x83d/0x850 mm/page_alloc.c:3470
free_unref_page+0xb2/0x5c0 mm/page_alloc.c:3566
free_the_page mm/page_alloc.c:774 [inline]
__free_pages+0x61/0xf0 mm/page_alloc.c:5773
__free_slab+0xce/0x1a0 mm/slub.c:2039
free_slab mm/slub.c:2054 [inline]
discard_slab mm/slub.c:2060 [inline]
__unfreeze_partials+0x165/0x1a0 mm/slub.c:2609
put_cpu_partial+0xa9/0x100 mm/slub.c:2685
__slab_free+0x1c8/0x280 mm/slub.c:3561
do_slab_free mm/slub.c:3638 [inline]
___cache_free+0xc6/0xd0 mm/slub.c:3691
qlink_free mm/kasan/quarantine.c:168 [inline]
qlist_free_all+0xc5/0x140 mm/kasan/quarantine.c:187
kasan_quarantine_reduce+0x15a/0x180 mm/kasan/quarantine.c:294
__kasan_slab_alloc+0x24/0x80 mm/kasan/common.c:310
kasan_slab_alloc include/linux/kasan.h:202 [inline]
slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:768
slab_alloc_node mm/slub.c:3421 [inline]
slab_alloc mm/slub.c:3429 [inline]
__kmem_cache_alloc_lru mm/slub.c:3436 [inline]
kmem_cache_alloc+0x175/0x2c0 mm/slub.c:3445
getname_flags+0xba/0x520 fs/namei.c:139
getname+0x19/0x20 fs/namei.c:218
do_sys_openat2+0xd7/0x850 fs/open.c:1335
Memory state around the buggy address:
ffffc90000f37880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc90000f37900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90000f37980: f1 f1 f1 f1 00 00 00 00 00 00 00 00 f3 f3 f3 f3
^
ffffc90000f37a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc90000f37a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
BUG: unable to handle page fault for address: ffffc90000f38000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 100000067 P4D 100000067 PUD 100154067
PMD 121ae5067
PTE 0
Oops: 0000 [#2] PREEMPT SMP KASAN
CPU: 0 PID: 301 Comm: syz-executor588 Tainted: G B D 6.1.75-syzkaller-00108-g3ca4271578e1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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:ffffc90000f37888 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 000000000b02ce77 RCX: ffffffff8191c465
RDX: dffffc0000000000 RSI: ffffc90000f37948 RDI: ffffc90000f38003
RBP: ffffc90000f378c8 R08: 00000000fffff93b R09: fffffbfff0ee5efd
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000088c45666
R13: 00000000fffff93b R14: 00000000000006b4 R15: 0000000080bc3495
FS: 0000555556ebd380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90000f38000 CR3: 0000000109455000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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_symlink+0x98e/0xc10 fs/ext4/namei.c:3438
vfs_symlink+0x24e/0x3e0 fs/namei.c:4478
do_symlinkat+0x1ea/0x5a0 fs/namei.c:4507
__do_sys_symlink fs/namei.c:4529 [inline]
__se_sys_symlink fs/namei.c:4527 [inline]
__x64_sys_symlink+0x7e/0x90 fs/namei.c:4527
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: 0033:0x7fa282756f57
Code: 7b 00 00 00 48 8d 35 70 c3 04 00 48 8d 3d 91 c3 04 00 e8 dc 19 fd ff e8 27 1e 00 00 0f 1f 80 00 00 00 00 b8 58 00 00 00 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:00007ffcc8cbbda8 EFLAGS: 00000206 ORIG_RAX: 0000000000000058
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa282756f57
RDX: 0000000000000004 RSI: 00007fa2827a002d RDI: 00007fa2827a0038
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000001
R13: 00007ffcc8cbc148 R14: 00007ffcc8cbbde0 R15: 0000000000000000
Modules linked in:
CR2: ffffc90000f38000
---[ 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:ffffc90000f47888 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 000000004cc65499 RCX: ffffffff8191c465
RDX: dffffc0000000000 RSI: ffffc90000f47948 RDI: ffffc90000f48003
RBP: ffffc90000f478c8 R08: 00000000fffff93b R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000440d7da
R13: 00000000fffff93b R14: 00000000000006b4 R15: 00000000f3688ca6
FS: 0000555556ebd380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90000f38000 CR3: 0000000109455000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
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