==================================================================
BUG: KASAN: stack-out-of-bounds in jhash2 include/linux/jhash.h:128 [inline]
BUG: KASAN: stack-out-of-bounds in hash+0x227/0xc20 kernel/bpf/bloom_filter.c:36
Read of size 4 at addr ffffc9000112f680 by task syz.0.3488/11632
CPU: 0 PID: 11632 Comm: syz.0.3488 Not tainted 6.1.84-syzkaller-00013-g6d6afa9d3f8f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
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_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:350
jhash2 include/linux/jhash.h:128 [inline]
hash+0x227/0xc20 kernel/bpf/bloom_filter.c:36
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:596 [inline]
bpf_prog_run include/linux/filter.h:610 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2273 [inline]
bpf_trace_run4+0x23f/0x2f0 kernel/trace/bpf_trace.c:2314
__bpf_trace_sched_switch+0xe/0x10 include/trace/events/sched.h:222
__traceiter_sched_switch+0x91/0xc0 include/trace/events/sched.h:222
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x1305/0x1550 kernel/sched/core.c:6741
preempt_schedule_common+0x9b/0xf0 kernel/sched/core.c:6913
preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6937
preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
try_to_wake_up+0x749/0x1220 kernel/sched/core.c:4393
wake_up_process kernel/sched/core.c:4521 [inline]
wake_up_q+0xf0/0x1d0 kernel/sched/core.c:1030
futex_wake+0x735/0xb60 kernel/futex/waitwake.c:188
do_futex+0x501/0x9a0 kernel/futex/syscalls.c:113
__do_sys_futex kernel/futex/syscalls.c:185 [inline]
__se_sys_futex+0x35e/0x3c0 kernel/futex/syscalls.c:166
__x64_sys_futex+0xe5/0x100 kernel/futex/syscalls.c:166
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: 0033:0x7f71b9f75b59
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f71bacd50f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f71ba105f68 RCX: 00007f71b9f75b59
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f71ba105f6c
RBP: 00007f71ba105f60 R08: 00007fff07d810b0 R09: 00007f71bacd56c0
R10: 0000000000000008 R11: 0000000000000246 R12: 00007f71ba105f6c
R13: 000000000000000b R14: 00007fff07d145f0 R15: 00007fff07d146d8
The buggy address belongs to stack of task syz.0.3488/11632
and is located at offset 0 in frame:
bpf_trace_run4+0x0/0x2f0
This frame has 1 object:
[32, 64) 'args'
The buggy address belongs to the virtual mapping at
[ffffc90001128000, ffffc90001131000) created by:
copy_process+0x5c3/0x3530 kernel/fork.c:2199
The buggy address belongs to the physical page:
page:ffffea000462bdc0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x118af7
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 11626, tgid 11626 (syz.2.3487), ts 236204275159, free_ts 236139619746
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:5714
__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
free_the_page mm/page_alloc.c:798 [inline]
__free_pages+0x61/0xf0 mm/page_alloc.c:5803
__free_slab+0xce/0x1a0 mm/slub.c:2039
free_slab mm/slub.c:2054 [inline]
discard_slab+0x29/0x40 mm/slub.c:2060
__slab_free+0x205/0x280 mm/slub.c:3597
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_kmalloc mm/kasan/common.c:345 [inline]
__kasan_kmalloc+0x24/0xb0 mm/kasan/common.c:388
kasan_kmalloc include/linux/kasan.h:212 [inline]
__do_kmalloc_node mm/slab_common.c:957 [inline]
__kmalloc_node_track_caller+0xb3/0x1e0 mm/slab_common.c:977
kmalloc_reserve net/core/skbuff.c:446 [inline]
__alloc_skb+0x125/0x2d0 net/core/skbuff.c:515
alloc_skb include/linux/skbuff.h:1285 [inline]
nlmsg_new include/net/netlink.h:991 [inline]
inet_netconf_notify_devconf+0x173/0x230 net/ipv4/devinet.c:2115
__devinet_sysctl_unregister net/ipv4/devinet.c:2626 [inline]
devinet_sysctl_unregister net/ipv4/devinet.c:2650 [inline]
inetdev_destroy net/ipv4/devinet.c:327 [inline]
inetdev_event+0x823/0x1110 net/ipv4/devinet.c:1602
notifier_call_chain kernel/notifier.c:87 [inline]
raw_notifier_call_chain+0x8c/0xf0 kernel/notifier.c:455
call_netdevice_notifiers_info net/core/dev.c:1977 [inline]
call_netdevice_notifiers_extack net/core/dev.c:2015 [inline]
call_netdevice_notifiers net/core/dev.c:2029 [inline]
unregister_netdevice_many+0xe2a/0x1740 net/core/dev.c:10888
Memory state around the buggy address:
ffffc9000112f580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc9000112f600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc9000112f680: f1 f1 f1 f1 00 00 00 00 f3 f3 f3 f3 00 00 00 00
^
ffffc9000112f700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc9000112f780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
BUG: unable to handle page fault for address: ffffc90001130000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 100000067 P4D 100000067 PUD 100154067 PMD 11f06d067 PTE 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 11632 Comm: syz.0.3488 Tainted: G B 6.1.84-syzkaller-00013-g6d6afa9d3f8f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:jhash2 include/linux/jhash.h:127 [inline]
RIP: 0010:hash+0xfe/0xc20 kernel/bpf/bloom_filter.c:36
Code: fc ff df 0f b6 04 10 84 c0 0f 85 c1 00 00 00 45 03 6e f4 48 8d 7e 04 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 db 00 00 00 <41> 03 5e f8 48 8d 7e 08 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 0f
RSP: 0018:ffffc9000112f588 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 0000000093548265 RCX: ffffffff8191ef05
RDX: dffffc0000000000 RSI: ffffc9000112fffc RDI: ffffc90001130000
RBP: ffffc9000112f5c8 R08: 0000000032abfd90 R09: fffffbfff0f264fd
R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000618f991d
R13: 00000000fcc0d7c4 R14: ffffc90001130008 R15: ffffc9000112fffc
FS: 00007f71bacd56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001130000 CR3: 0000000116d3a000 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:596 [inline]
bpf_prog_run include/linux/filter.h:610 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2273 [inline]
bpf_trace_run4+0x23f/0x2f0 kernel/trace/bpf_trace.c:2314
__bpf_trace_sched_switch+0xe/0x10 include/trace/events/sched.h:222
__traceiter_sched_switch+0x91/0xc0 include/trace/events/sched.h:222
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x1305/0x1550 kernel/sched/core.c:6741
preempt_schedule_common+0x9b/0xf0 kernel/sched/core.c:6913
preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6937
preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
try_to_wake_up+0x749/0x1220 kernel/sched/core.c:4393
wake_up_process kernel/sched/core.c:4521 [inline]
wake_up_q+0xf0/0x1d0 kernel/sched/core.c:1030
futex_wake+0x735/0xb60 kernel/futex/waitwake.c:188
do_futex+0x501/0x9a0 kernel/futex/syscalls.c:113
__do_sys_futex kernel/futex/syscalls.c:185 [inline]
__se_sys_futex+0x35e/0x3c0 kernel/futex/syscalls.c:166
__x64_sys_futex+0xe5/0x100 kernel/futex/syscalls.c:166
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: 0033:0x7f71b9f75b59
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f71bacd50f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f71ba105f68 RCX: 00007f71b9f75b59
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f71ba105f6c
RBP: 00007f71ba105f60 R08: 00007fff07d810b0 R09: 00007f71bacd56c0
R10: 0000000000000008 R11: 0000000000000246 R12: 00007f71ba105f6c
R13: 000000000000000b R14: 00007fff07d145f0 R15: 00007fff07d146d8
Modules linked in:
CR2: ffffc90001130000
---[ end trace 0000000000000000 ]---
RIP: 0010:jhash2 include/linux/jhash.h:127 [inline]
RIP: 0010:hash+0xfe/0xc20 kernel/bpf/bloom_filter.c:36
Code: fc ff df 0f b6 04 10 84 c0 0f 85 c1 00 00 00 45 03 6e f4 48 8d 7e 04 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 db 00 00 00 <41> 03 5e f8 48 8d 7e 08 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 0f
RSP: 0018:ffffc9000112f588 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 0000000093548265 RCX: ffffffff8191ef05
RDX: dffffc0000000000 RSI: ffffc9000112fffc RDI: ffffc90001130000
RBP: ffffc9000112f5c8 R08: 0000000032abfd90 R09: fffffbfff0f264fd
R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000618f991d
R13: 00000000fcc0d7c4 R14: ffffc90001130008 R15: ffffc9000112fffc
FS: 00007f71bacd56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001130000 CR3: 0000000116d3a000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess), 2 bytes skipped:
0: df 0f fisttps (%rdi)
2: b6 04 mov $0x4,%dh
4: 10 84 c0 0f 85 c1 00 adc %al,0xc1850f(%rax,%rax,8)
b: 00 00 add %al,(%rax)
d: 45 03 6e f4 add -0xc(%r14),%r13d
11: 48 8d 7e 04 lea 0x4(%rsi),%rdi
15: 48 89 f8 mov %rdi,%rax
18: 48 c1 e8 03 shr $0x3,%rax
1c: 0f b6 04 10 movzbl (%rax,%rdx,1),%eax
20: 84 c0 test %al,%al
22: 0f 85 db 00 00 00 jne 0x103
* 28: 41 03 5e f8 add -0x8(%r14),%ebx <-- trapping instruction
2c: 48 8d 7e 08 lea 0x8(%rsi),%rdi
30: 48 89 f8 mov %rdi,%rax
33: 48 c1 e8 03 shr $0x3,%rax
37: 0f b6 04 10 movzbl (%rax,%rdx,1),%eax
3b: 84 c0 test %al,%al
3d: 0f .byte 0xf