=============================
[ BUG: Invalid wait context ]
6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0 Not tainted
-----------------------------
syz.7.369/7896 is trying to lock:
ffff88813fffc298 (&zone->lock){-.-.}-{3:3}, at: rmqueue_buddy mm/page_alloc.c:2909 [inline]
ffff88813fffc298 (&zone->lock){-.-.}-{3:3}, at: rmqueue mm/page_alloc.c:3082 [inline]
ffff88813fffc298 (&zone->lock){-.-.}-{3:3}, at: get_page_from_freelist+0xb3d/0x37a0 mm/page_alloc.c:3473
other info that might help us debug this:
context-{2:2}
7 locks held by syz.7.369/7896:
#0: ffff88807c2439d8 (sk_lock-AF_INET6){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1623 [inline]
#0: ffff88807c2439d8 (sk_lock-AF_INET6){+.+.}-{0:0}, at: sctp_sendmsg+0xbb9/0x3520 net/sctp/socket.c:1970
#1: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#1: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#1: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: sctp_v6_xmit+0x635/0x14a0 net/sctp/ipv6.c:247
#2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: ip6_finish_output2+0x63a/0x17b0 net/ipv6/ip6_output.c:126
#3: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: local_lock_acquire include/linux/local_lock_internal.h:29 [inline]
#3: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x33b/0x15b0 net/core/dev.c:6145
#4: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#4: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#4: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: ip6_input_finish+0xdc/0x2d0 net/ipv6/ip6_input.c:480
#5: ffff88807c2401d8 (k-slock-AF_INET6){+.-.}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline]
#5: ffff88807c2401d8 (k-slock-AF_INET6){+.-.}-{3:3}, at: sctp_rcv+0x1aad/0x2580 net/sctp/input.c:218
#6: ffff8880b8644958 (&pcp->lock){+.+.}-{3:3}, at: spin_trylock include/linux/spinlock.h:361 [inline]
#6: ffff8880b8644958 (&pcp->lock){+.+.}-{3:3}, at: rmqueue_pcplist mm/page_alloc.c:3032 [inline]
#6: ffff8880b8644958 (&pcp->lock){+.+.}-{3:3}, at: rmqueue mm/page_alloc.c:3076 [inline]
#6: ffff8880b8644958 (&pcp->lock){+.+.}-{3:3}, at: get_page_from_freelist+0x7d3/0x37a0 mm/page_alloc.c:3473
stack backtrace:
CPU: 0 UID: 0 PID: 7896 Comm: syz.7.369 Not tainted 6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_lock_invalid_wait_context kernel/locking/lockdep.c:4826 [inline]
check_wait_context kernel/locking/lockdep.c:4898 [inline]
__lock_acquire+0x15a8/0x2100 kernel/locking/lockdep.c:5176
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
rmqueue_buddy mm/page_alloc.c:2909 [inline]
rmqueue mm/page_alloc.c:3082 [inline]
get_page_from_freelist+0xb3d/0x37a0 mm/page_alloc.c:3473
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4753
alloc_pages_mpol_noprof+0x3e1/0x780 mm/mempolicy.c:2269
stack_depot_save_flags+0x72d/0x940 lib/stackdepot.c:627
kasan_save_stack+0x4f/0x60 mm/kasan/common.c:48
__kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:544
task_work_add+0xd9/0x490 kernel/task_work.c:77
__run_posix_cpu_timers kernel/time/posix-cpu-timers.c:1223 [inline]
run_posix_cpu_timers+0x6ac/0x810 kernel/time/posix-cpu-timers.c:1422
tick_sched_handle kernel/time/tick-sched.c:276 [inline]
tick_nohz_handler+0x37c/0x500 kernel/time/tick-sched.c:297
__run_hrtimer kernel/time/hrtimer.c:1739 [inline]
__hrtimer_run_queues+0x551/0xd30 kernel/time/hrtimer.c:1803
hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 7e 2f 3a f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 43 d6 a1 f5 65 8b 05 b4 18 38 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc90000006780 EFLAGS: 00000206
RAX: 9df24fa7b5ef0800 RBX: 1ffff92000000cf4 RCX: ffffffff817b387a
RDX: dffffc0000000000 RSI: ffffffff8c0a98e0 RDI: 0000000000000001
RBP: ffffc90000006818 R08: ffffffff942a5887 R09: 1ffffffff2854b10
R10: dffffc0000000000 R11: fffffbfff2854b11 R12: dffffc0000000000
R13: 1ffff92000000cf0 R14: ffffc900000067a0 R15: 0000000000000246
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
rmqueue_bulk mm/page_alloc.c:2328 [inline]
__rmqueue_pcplist+0x21fd/0x2a90 mm/page_alloc.c:3003
rmqueue_pcplist mm/page_alloc.c:3045 [inline]
rmqueue mm/page_alloc.c:3076 [inline]
get_page_from_freelist+0x886/0x37a0 mm/page_alloc.c:3473
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4753
alloc_pages_mpol_noprof+0x3e1/0x780 mm/mempolicy.c:2269
stack_depot_save_flags+0x72d/0x940 lib/stackdepot.c:627
kasan_save_stack mm/kasan/common.c:48 [inline]
kasan_save_track+0x51/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:582
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2353 [inline]
slab_free mm/slub.c:4613 [inline]
kfree+0x196/0x430 mm/slub.c:4761
skb_kfree_head net/core/skbuff.c:1086 [inline]
skb_free_head net/core/skbuff.c:1098 [inline]
skb_release_data+0x6a0/0x8a0 net/core/skbuff.c:1125
skb_release_all net/core/skbuff.c:1190 [inline]
__kfree_skb net/core/skbuff.c:1204 [inline]
consume_skb+0x9f/0xf0 net/core/skbuff.c:1436
sctp_chunk_destroy net/sctp/sm_make_chunk.c:1503 [inline]
sctp_chunk_put+0x17d/0x200 net/sctp/sm_make_chunk.c:1530
sctp_inq_chunk_free net/sctp/inqueue.c:46 [inline]
sctp_inq_pop+0xc0f/0xf50 net/sctp/inqueue.c:141
sctp_endpoint_bh_rcv+0x15d/0x7a0 net/sctp/endpointola.c:349
sctp_rcv+0x1c62/0x2580 net/sctp/input.c:243
sctp6_rcv+0x39/0x70 net/sctp/ipv6.c:1126
ip6_protocol_deliver_rcu+0x105b/0x1580 net/ipv6/ip6_input.c:436
ip6_input_finish+0x187/0x2d0 net/ipv6/ip6_input.c:481
NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314
NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314
__netif_receive_skb_one_core net/core/dev.c:5704 [inline]
__netif_receive_skb+0x1ea/0x650 net/core/dev.c:5817
process_backlog+0x662/0x15b0 net/core/dev.c:6149
__napi_poll+0xcb/0x490 net/core/dev.c:6902
napi_poll net/core/dev.c:6971 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:7093
handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
do_softirq+0x11b/0x1e0 kernel/softirq.c:462
__local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:389
local_bh_enable include/linux/bottom_half.h:33 [inline]
rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline]
__dev_queue_xmit+0x1775/0x3f50 net/core/dev.c:4493
dev_queue_xmit include/linux/netdevice.h:3168 [inline]
neigh_hh_output include/net/neighbour.h:523 [inline]
neigh_output include/net/neighbour.h:537 [inline]
ip6_finish_output2+0x1284/0x17b0 net/ipv6/ip6_output.c:141
ip6_finish_output+0x41e/0x840 net/ipv6/ip6_output.c:226
NF_HOOK include/linux/netfilter.h:314 [inline]
ip6_xmit+0xed8/0x18a0 net/ipv6/ip6_output.c:366
sctp_v6_xmit+0xa60/0x14a0 net/sctp/ipv6.c:248
sctp_packet_transmit+0x26d6/0x2cc0 net/sctp/output.c:653
sctp_packet_singleton+0x22c/0x320 net/sctp/outqueue.c:783
sctp_outq_flush_ctrl net/sctp/outqueue.c:914 [inline]
sctp_outq_flush+0x6d5/0x3e20 net/sctp/outqueue.c:1212
sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline]
sctp_do_sm+0x59cc/0x60c0 net/sctp/sm_sideeffect.c:1169
sctp_primitive_ASSOCIATE+0x95/0xc0 net/sctp/primitive.c:73
sctp_sendmsg_to_asoc+0xfa5/0x1800 net/sctp/socket.c:1841
sctp_sendmsg+0x1bc3/0x3520 net/sctp/socket.c:2031
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg+0x1a6/0x270 net/socket.c:726
__sys_sendto+0x363/0x4c0 net/socket.c:2197
__do_sys_sendto net/socket.c:2204 [inline]
__se_sys_sendto net/socket.c:2200 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2200
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd2abd85d29
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:00007fd2acbae038 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fd2abf75fa0 RCX: 00007fd2abd85d29
RDX: 0000000000034000 RSI: 0000000020847fff RDI: 000000000000000b
RBP: 00007fd2abe01b08 R08: 000000002005ffe4 R09: 000000000000001c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd2abf75fa0 R15: 00007fd2ac09fa28
----------------
Code disassembly (best guess):
0: 9c pushf
1: 8f 44 24 20 pop 0x20(%rsp)
5: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1)
a: 74 08 je 0x14
c: 4c 89 f7 mov %r14,%rdi
f: e8 7e 2f 3a f6 call 0xf63a2f92
14: f6 44 24 21 02 testb $0x2,0x21(%rsp)
19: 75 52 jne 0x6d
1b: 41 f7 c7 00 02 00 00 test $0x200,%r15d
22: 74 01 je 0x25
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 43 d6 a1 f5 call 0xf5a1d672 <-- trapping instruction
2f: 65 8b 05 b4 18 38 74 mov %gs:0x743818b4(%rip),%eax # 0x743818ea
36: 85 c0 test %eax,%eax
38: 74 43 je 0x7d
3a: 48 rex.W
3b: c7 .byte 0xc7
3c: 04 24 add $0x24,%al
3e: 0e (bad)
3f: 36 ss