==================================================================
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 ffffc90001ad7360 by task syz-executor.1/2869
CPU: 1 PID: 2869 Comm: syz-executor.1 Not tainted 6.1.78-syzkaller-00140-g9fcc2459efcd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
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_run2+0x133/0x290 kernel/trace/bpf_trace.c:2314
__bpf_trace_ext4_da_release_space+0x23/0x30 include/trace/events/ext4.h:1273
trace_ext4_da_release_space include/trace/events/ext4.h:1273 [inline]
ext4_da_release_space+0x423/0x480 fs/ext4/inode.c:1526
ext4_es_remove_extent+0x297/0x460 fs/ext4/extents_status.c:1541
ext4_ext_truncate+0x154/0x320 fs/ext4/extents.c:4408
ext4_truncate+0x96c/0xfb0 fs/ext4/inode.c:4279
ext4_setattr+0x1107/0x1a50 fs/ext4/inode.c:5586
notify_change+0xd53/0x1010 fs/attr.c:499
do_truncate+0x21c/0x300 fs/open.c:66
handle_truncate fs/namei.c:3286 [inline]
do_open fs/namei.c:3631 [inline]
path_openat+0x2726/0x2d60 fs/namei.c:3784
do_filp_open+0x230/0x480 fs/namei.c:3811
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: 0033:0x7f2cbd07cee9
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:00007f2cbde660c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f2cbd1b3f80 RCX: 00007f2cbd07cee9
RDX: 0000000000007a05 RSI: 0000000020000140 RDI: ffffffffffffff9c
RBP: 00007f2cbd0da6fe R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001700 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f2cbd1b3f80 R15: 00007ffd4a53b778
The buggy address belongs to stack of task syz-executor.1/2869
and is located at offset 0 in frame:
bpf_trace_run2+0x0/0x290
This frame has 1 object:
[32, 48) 'args'
The buggy address belongs to the virtual mapping at
[ffffc90001ad0000, ffffc90001ad9000) created by:
copy_process+0x5c3/0x3530 kernel/fork.c:2199
The buggy address belongs to the physical page:
page:ffffea000684d680 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1a135a
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 2867, tgid 2867 (syz-executor.1), ts 890775112810, free_ts 890672710339
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_list+0xf1/0x7b0 mm/page_alloc.c:3646
release_pages+0xf7f/0xfe0 mm/swap.c:1063
free_pages_and_swap_cache+0x8a/0xa0 mm/swap_state.c:314
tlb_batch_pages_flush mm/mmu_gather.c:59 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:254 [inline]
tlb_flush_mmu mm/mmu_gather.c:261 [inline]
tlb_finish_mmu+0x1e0/0x3f0 mm/mmu_gather.c:361
exit_mmap+0x421/0x940 mm/mmap.c:3348
__mmput+0x95/0x310 kernel/fork.c:1298
mmput+0x56/0x170 kernel/fork.c:1321
exit_mm kernel/exit.c:566 [inline]
do_exit+0xb29/0x2b80 kernel/exit.c:862
do_group_exit+0x21a/0x2d0 kernel/exit.c:1025
get_signal+0x169d/0x1820 kernel/signal.c:2880
arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:871
exit_to_user_mode_loop+0x74/0xa0 kernel/entry/common.c:168
exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x26/0x140 kernel/entry/common.c:297
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:87
Memory state around the buggy address:
ffffc90001ad7200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc90001ad7280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90001ad7300: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1
^
ffffc90001ad7380: 00 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
ffffc90001ad7400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
BUG: unable to handle page fault for address: ffffc90001ad8000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 100000067 P4D 100000067 PUD 100154067 PMD 1286d5067 PTE 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 2869 Comm: syz-executor.1 Tainted: G B 6.1.78-syzkaller-00140-g9fcc2459efcd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
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:ffffc90001ad7268 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 000000000b8d86b0 RCX: ffffffff8191dbe5
RDX: dffffc0000000000 RSI: ffffc90001ad7328 RDI: ffffc90001ad8003
RBP: ffffc90001ad72a8 R08: 00000000fffff2dd R09: fffffbfff0f260fd
R10: 0000000000000000 R11: dffffc0000000001 R12: 000000007f5457aa
R13: 00000000fffff2dd R14: 0000000000000cd8 R15: 000000008d3bb5f9
FS: 00007f2cbde666c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffdfa50000 CR3: 000000012e347000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
----------------
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