CFI failure at __traceiter_kmem_cache_free+0x3e/0x60 include/trace/events/kmem.h:115 (target: tp_stub_func+0x0/0x10; expected type: 0x00cffe50)
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 32306 Comm: syz.4.9324 Tainted: G W 6.1.145-syzkaller-00002-gc750dc582629 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__traceiter_kmem_cache_free+0x3e/0x60 include/trace/events/kmem.h:115
Code: e4 74 38 48 89 cb 49 89 d6 49 89 f7 49 8b 04 24 49 8b 7c 24 08 4c 89 fe 4c 89 f2 48 89 d9 41 ba b0 01 30 ff 44 03 50 fc 74 02 <0f> 0b ff d0 49 83 7c 24 18 00 4d 8d 64 24 18 75 d1 31 c0 5b 41 5c
RSP: 0018:ffffc900001b0b28 EFLAGS: 00010283
RAX: ffffffff81711ed0 RBX: ffff888100bcc300 RCX: ffff888100bcc300
RDX: ffff888113e12f00 RSI: ffffffff83ec0809 RDI: ffffc90001423000
RBP: ffffc900001b0b48 R08: dffffc0000000000 R09: fffff52000036119
R10: 00000000a47068bc R11: ffffffff81342130 R12: ffff88811ddc89a8
R13: ffffea0000000000 R14: ffff888113e12f00 R15: ffffffff83ec0809
FS: 000055556d262500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000129eaf000 CR4: 00000000003506a0
Call Trace:
trace_kmem_cache_free include/trace/events/kmem.h:115 [inline]
kmem_cache_free+0x285/0x300 mm/slub.c:3710
dst_destroy+0x209/0x2e0 net/core/dst.c:124
dst_destroy_rcu+0x19/0x20 net/core/dst.c:137
rcu_do_batch+0x515/0xb90 kernel/rcu/tree.c:2297
rcu_core+0x5a5/0xe70 kernel/rcu/tree.c:2557
rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2574
handle_softirqs+0x1d7/0x600 kernel/softirq.c:642
__do_softirq kernel/softirq.c:680 [inline]
invoke_softirq kernel/softirq.c:497 [inline]
__irq_exit_rcu+0x52/0xf0 kernel/softirq.c:729
irq_exit_rcu+0x9/0x10 kernel/softirq.c:741
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1118
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:preempt_schedule_irq+0x96/0x110 kernel/sched/core.c:7062
Code: 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 b0 71 59 fc fb bf 01 00 00 00 55 e5 ff ff fa bf 01 00 00 00 e8 5a 73 59 fc 65 48 8b 1d c2 40
RSP: 0018:ffffc9000113f720 EFLAGS: 00000246
RAX: 1ffff110238b38f1 RBX: ffffc9000113f7f8 RCX: ffffffff87970000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc9000113f7a8 R08: dffffc0000000000 R09: ffffed10238b3799
R10: ffffed10238b3799 R11: 1ffff110238b3798 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000227ee4
raw_irqentry_exit_cond_resched+0x29/0x30 kernel/entry/common.c:396
irqentry_exit+0x37/0x40 kernel/entry/common.c:439
sysvec_reschedule_ipi+0x78/0x80 arch/x86/kernel/smp.c:244
asm_sysvec_reschedule_ipi+0x1b/0x20 arch/x86/include/asm/idtentry.h:696
RIP: 0010:console_emit_next_record+0x9e3/0xbc0 kernel/printk/printk.c:2797
Code: de 48 81 e6 00 02 00 00 31 ff e8 f8 49 19 00 48 81 e3 00 02 00 00 75 07 e8 2a 45 19 00 eb 06 e8 23 45 19 00 fb 0f b6 5c 24 07 <48> c7 84 24 80 00 00 00 0e 36 e0 45 4b c7 04 2e 00 00 00 00 4b c7
RSP: 0018:ffffc9000113f8a0 EFLAGS: 00000293
RAX: ffffffff8156bd5d RBX: 0000000000000001 RCX: ffff88811c59bcc0
RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
RBP: ffffc9000113fab0 R08: 0000000000000004 R09: 0000000000000003
R10: fffff52000227f04 R11: 1ffff92000227f04 R12: ffffc9000113faff
R13: dffffc0000000000 R14: 1ffff92000227f24 R15: 000000000000005e
console_flush_all kernel/printk/printk.c:-1 [inline]
console_unlock+0x23d/0x550 kernel/printk/printk.c:2917
con_shutdown+0x71/0x80 drivers/tty/vt/vt.c:3433
release_tty+0xd4/0x820 drivers/tty/tty_io.c:1588
tty_release_struct+0xbf/0xe0 drivers/tty/tty_io.c:1700
tty_release+0xbfd/0x1210 drivers/tty/tty_io.c:1860
__fput+0x1fc/0x8f0 fs/file_table.c:320
____fput+0x15/0x20 fs/file_table.c:348
task_work_run+0x1db/0x240 kernel/task_work.c:203
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0x9b/0xb0 kernel/entry/common.c:177
exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe2f378ebe9
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:00007ffc657eb088 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fe2f39b7da0 RCX: 00007fe2f378ebe9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fe2f39b7da0 R08: 0000000000000830 R09: 0000001b657eb37f
R10: 00007fe2f39b7cb0 R11: 0000000000000246 R12: 00000000001c01ba
R13: 00007fe2f39b6180 R14: ffffffffffffffff R15: 00007ffc657eb1a0
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__traceiter_kmem_cache_free+0x3e/0x60 include/trace/events/kmem.h:115
Code: e4 74 38 48 89 cb 49 89 d6 49 89 f7 49 8b 04 24 49 8b 7c 24 08 4c 89 fe 4c 89 f2 48 89 d9 41 ba b0 01 30 ff 44 03 50 fc 74 02 <0f> 0b ff d0 49 83 7c 24 18 00 4d 8d 64 24 18 75 d1 31 c0 5b 41 5c
RSP: 0018:ffffc900001b0b28 EFLAGS: 00010283
RAX: ffffffff81711ed0 RBX: ffff888100bcc300 RCX: ffff888100bcc300
RDX: ffff888113e12f00 RSI: ffffffff83ec0809 RDI: ffffc90001423000
RBP: ffffc900001b0b48 R08: dffffc0000000000 R09: fffff52000036119
R10: 00000000a47068bc R11: ffffffff81342130 R12: ffff88811ddc89a8
R13: ffffea0000000000 R14: ffff888113e12f00 R15: ffffffff83ec0809
FS: 000055556d262500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000129eaf000 CR4: 00000000003506a0
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 9c 8f 44 24 20 f6 add %bl,-0x9dfdbbc(%rdi,%rcx,4)
9: 44 24 21 rex.R and $0x21,%al
c: 02 74 0b 0f add 0xf(%rbx,%rcx,1),%dh
10: 0b 48 f7 or -0x9(%rax),%ecx
13: 03 08 add (%rax),%ecx
15: 00 00 add %al,(%rax)
17: 00 74 4d bf add %dh,-0x41(%rbp,%rcx,2)
1b: 01 00 add %eax,(%rax)
1d: 00 00 add %al,(%rax)
1f: e8 b0 71 59 fc call 0xfc5971d4
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 55 e5 ff ff call 0xffffe584 <-- trapping instruction
2f: fa cli
30: bf 01 00 00 00 mov $0x1,%edi
35: e8 5a 73 59 fc call 0xfc597394
3a: 65 gs
3b: 48 rex.W
3c: 8b .byte 0x8b
3d: 1d .byte 0x1d
3e: c2 .byte 0xc2
3f: 40 rex