==================================================================
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 ffffc900000a6c60 by task kworker/u4:1/10
CPU: 1 PID: 10 Comm: kworker/u4:1 Not tainted 6.1.75-syzkaller-00108-g3ca4271578e1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: writeback wb_workfn (flush-8:0)
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
__traceiter_jbd2_handle_stats+0x96/0xf0 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_writepages+0x130b/0x3fd0 fs/ext4/inode.c:2857
do_writepages+0x385/0x620 mm/page-writeback.c:2472
__writeback_single_inode+0xdc/0xb80 fs/fs-writeback.c:1612
writeback_sb_inodes+0xb32/0x1910 fs/fs-writeback.c:1903
__writeback_inodes_wb+0x118/0x3f0 fs/fs-writeback.c:1974
wb_writeback+0x3cd/0x9f0 fs/fs-writeback.c:2079
wb_check_old_data_flush fs/fs-writeback.c:2179 [inline]
wb_do_writeback fs/fs-writeback.c:2232 [inline]
wb_workfn+0xaf9/0x1030 fs/fs-writeback.c:2260
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
The buggy address belongs to stack of task kworker/u4:1/10
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
[ffffc900000a0000, ffffc900000a9000) created by:
copy_process+0x5c3/0x3530 kernel/fork.c:2199
The buggy address belongs to the physical page:
page:ffffea0004026180 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100986
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 0x0(), pid 1, tgid 1 (swapper/0), ts 1272388129, free_ts 0
create_dummy_stack mm/page_owner.c:68 [inline]
register_early_stack+0x86/0xe0 mm/page_owner.c:84
init_page_owner+0x3d/0x650 mm/page_owner.c:94
invoke_init_callbacks mm/page_ext.c:130 [inline]
page_ext_init+0x3a6/0x3cb mm/page_ext.c:524
kernel_init_freeable+0x2ec/0x451 init/main.c:1620
page_owner free stack trace missing
Memory state around the buggy address:
ffffc900000a6b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc900000a6b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc900000a6c00: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1
^
ffffc900000a6c80: 00 00 00 00 00 00 00 00 f3 f3 f3 f3 00 00 00 00
ffffc900000a6d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
BUG: unable to handle page fault for address: ffffc900000a8000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 100000067 P4D 100000067 PUD 100154067 PMD 100155067 PTE 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 10 Comm: kworker/u4:1 Tainted: G B 6.1.75-syzkaller-00108-g3ca4271578e1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: writeback wb_workfn (flush-8:0)
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:ffffc900000a6b68 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 00000000557a5ae8 RCX: ffffffff8191c465
RDX: dffffc0000000000 RSI: ffffc900000a6c28 RDI: ffffc900000a8003
RBP: ffffc900000a6ba8 R08: 00000000ffffec1b R09: fffffbfff0ee5efd
R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000ce98b9c5
R13: 00000000ffffec1b R14: 00000000000013d4 R15: 00000000646888b4
FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900000a8000 CR3: 0000000121434000 CR4: 00000000003506a0
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
__traceiter_jbd2_handle_stats+0x96/0xf0 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_writepages+0x130b/0x3fd0 fs/ext4/inode.c:2857
do_writepages+0x385/0x620 mm/page-writeback.c:2472
__writeback_single_inode+0xdc/0xb80 fs/fs-writeback.c:1612
writeback_sb_inodes+0xb32/0x1910 fs/fs-writeback.c:1903
__writeback_inodes_wb+0x118/0x3f0 fs/fs-writeback.c:1974
wb_writeback+0x3cd/0x9f0 fs/fs-writeback.c:2079
wb_check_old_data_flush fs/fs-writeback.c:2179 [inline]
wb_do_writeback fs/fs-writeback.c:2232 [inline]
wb_workfn+0xaf9/0x1030 fs/fs-writeback.c:2260
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
Modules linked in:
CR2: ffffc900000a8000
---[ 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:ffffc900000a6b68 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 00000000557a5ae8 RCX: ffffffff8191c465
RDX: dffffc0000000000 RSI: ffffc900000a6c28 RDI: ffffc900000a8003
RBP: ffffc900000a6ba8 R08: 00000000ffffec1b R09: fffffbfff0ee5efd
R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000ce98b9c5
R13: 00000000ffffec1b R14: 00000000000013d4 R15: 00000000646888b4
FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900000a8000 CR3: 0000000121434000 CR4: 00000000003506a0
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