------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: timer_list hint: rose_transmit_restart_request net/rose/rose_link.c:-1 [inline]
ODEBUG: free active (active state 0) object type: timer_list hint: rose_t0timer_expiry+0x0/0x350 net/rose/rose_link.c:284
WARNING: CPU: 0 PID: 4267 at lib/debugobjects.c:518 debug_print_object lib/debugobjects.c:515 [inline]
WARNING: CPU: 0 PID: 4267 at lib/debugobjects.c:518 __debug_check_no_obj_freed lib/debugobjects.c:979 [inline]
WARNING: CPU: 0 PID: 4267 at lib/debugobjects.c:518 debug_check_no_obj_freed+0x43c/0x530 lib/debugobjects.c:1009
Modules linked in:
CPU: 0 PID: 4267 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:debug_print_object lib/debugobjects.c:515 [inline]
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:979 [inline]
RIP: 0010:debug_check_no_obj_freed+0x43c/0x530 lib/debugobjects.c:1009
Code: ef e8 b8 70 c5 fd 4c 8b 45 00 48 c7 c7 00 fd de 8a 48 c7 c6 c0 f9 de 8a 48 c7 c2 60 fe de 8a 8b 0c 24 4d 89 e9 e8 24 6a 41 fd <0f> 0b 4c 8b 6c 24 18 48 b9 00 00 00 00 00 fc ff df ff 05 55 10 14
RSP: 0018:ffffc90000007a10 EFLAGS: 00010246
RAX: 03aaadd018cef200 RBX: ffffffff96dfb508 RCX: ffff88802e098000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffffff8a8de2a0 R08: dffffc0000000000 R09: fffff52000000ed1
R10: fffff52000000ed1 R11: 1ffff92000000ed0 R12: ffff88801dacf200
R13: ffffffff89194500 R14: ffff88801dacf000 R15: ffff88801dacf090
FS: 000055559040e500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f91ca3156c0 CR3: 000000005a97d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
slab_free_hook mm/slub.c:1704 [inline]
slab_free_freelist_hook+0xd2/0x1a0 mm/slub.c:1755
slab_free mm/slub.c:3687 [inline]
__kmem_cache_free+0xb6/0x1f0 mm/slub.c:3700
rose_neigh_put include/net/rose.h:166 [inline]
rose_timer_expiry+0x4a7/0x5d0 net/rose/rose_timer.c:183
call_timer_fn+0x1a0/0x670 kernel/time/timer.c:1504
expire_timers kernel/time/timer.c:1549 [inline]
__run_timers+0x525/0x7c0 kernel/time/timer.c:1820
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
handle_softirqs+0x2a1/0x920 kernel/softirq.c:596
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:lock_release+0x593/0x910 kernel/locking/lockdep.c:5686
Code: 00 00 00 00 9c 8f 84 24 80 00 00 00 f6 84 24 81 00 00 00 02 75 75 f7 44 24 50 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 2f 00 00 00 00 66 43 c7 44 2f 09 00 00 43 c6 44 2f 0b 00
RSP: 0018:ffffc90003df6d40 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 39490814e62187a7 RCX: 03aaadd018cef200
RDX: 0000000000000003 RSI: ffffffff8a8c1700 RDI: ffffffff8adef3a0
RBP: ffffc90003df6e60 R08: dffffc0000000000 R09: fffffbfff1c3ed96
R10: fffffbfff1c3ed96 R11: 1ffffffff1c3ed95 R12: ffff88802e098b58
R13: dffffc0000000000 R14: ffff88802e098ad0 R15: 1ffff920007bedb4
rcu_lock_release include/linux/rcupdate.h:355 [inline]
rcu_read_unlock include/linux/rcupdate.h:824 [inline]
is_bpf_text_address+0x28b/0x2a0 kernel/bpf/core.c:737
kernel_text_address+0x9c/0xd0 kernel/extable.c:125
__kernel_text_address+0x9/0x30 kernel/extable.c:79
unwind_get_return_address+0x49/0x80 arch/x86/kernel/unwind_orc.c:323
arch_stack_walk+0xf2/0x140 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x98/0xe0 kernel/stacktrace.c:122
save_stack+0xf3/0x1e0 mm/page_owner.c:127
__set_page_owner+0x19/0x60 mm/page_owner.c:190
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2532
prep_new_page mm/page_alloc.c:2539 [inline]
get_page_from_freelist+0x1a26/0x1ac0 mm/page_alloc.c:4328
__alloc_pages+0x1df/0x4e0 mm/page_alloc.c:5614
__pte_alloc_one include/asm-generic/pgalloc.h:63 [inline]
pte_alloc_one+0x80/0x2f0 arch/x86/mm/pgtable.c:33
__pte_alloc+0x21/0x150 mm/memory.c:468
copy_pte_range mm/memory.c:1042 [inline]
copy_pmd_range mm/memory.c:1177 [inline]
copy_pud_range mm/memory.c:1214 [inline]
copy_p4d_range mm/memory.c:1238 [inline]
copy_page_range+0x32c2/0x39e0 mm/memory.c:1336
dup_mmap kernel/fork.c:697 [inline]
dup_mm kernel/fork.c:1541 [inline]
copy_mm+0xde3/0x15c0 kernel/fork.c:1590
copy_process+0x1953/0x4020 kernel/fork.c:2351
kernel_clone+0x225/0x8b0 kernel/fork.c:2757
__do_sys_clone kernel/fork.c:2898 [inline]
__se_sys_clone kernel/fork.c:2882 [inline]
__x64_sys_clone+0x17c/0x1d0 kernel/fork.c:2882
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f91c9585713
Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00
RSP: 002b:00007fff90603208 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f91c9585713
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
R10: 000055559040e7d0 R11: 0000000000000246 R12: 0000000000000000
R13: 00000000000927c0 R14: 00000000000b4e88 R15: 00007fff906033a0
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 00 add %al,(%rax)
4: 9c pushf
5: 8f 84 24 80 00 00 00 pop 0x80(%rsp)
c: f6 84 24 81 00 00 00 testb $0x2,0x81(%rsp)
13: 02
14: 75 75 jne 0x8b
16: f7 44 24 50 00 02 00 testl $0x200,0x50(%rsp)
1d: 00
1e: 74 01 je 0x21
20: fb sti
21: 48 c7 44 24 60 0e 36 movq $0x45e0360e,0x60(%rsp)
28: e0 45
* 2a: 4b c7 04 2f 00 00 00 movq $0x0,(%r15,%r13,1) <-- trapping instruction
31: 00
32: 66 43 c7 44 2f 09 00 movw $0x0,0x9(%r15,%r13,1)
39: 00
3a: 43 c6 44 2f 0b 00 movb $0x0,0xb(%r15,%r13,1)