ref_tracker: reference already released. ref_tracker: freed in: ------------[ cut here ]------------ pool index 113951 out of bounds (2079) for stack id 4e87bd20 WARNING: CPU: 3 PID: 40 at lib/stackdepot.c:451 depot_fetch_stack+0x95/0xc0 lib/stackdepot.c:451 Modules linked in: CPU: 3 UID: 0 PID: 40 Comm: kauditd Not tainted 6.14.0-rc6-syzkaller-00022-gb7f94fcf5546 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:depot_fetch_stack+0x95/0xc0 lib/stackdepot.c:451 Code: c7 58 84 d7 8e e8 0b c9 63 06 83 f8 01 75 b9 90 0f 0b 90 eb b3 90 48 c7 c7 58 13 8c 8d 89 e9 44 89 ea 89 de e8 1c 24 86 fc 90 <0f> 0b 90 90 31 c0 eb bc 90 0f 0b 90 31 c0 eb b4 90 0f 0b 90 31 c0 RSP: 0018:ffffc90000718c50 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 000000000001bd1f RCX: ffffffff817a2269 RDX: ffff88801ead2440 RSI: ffffffff817a2276 RDI: 0000000000000001 RBP: 000000004e87bd20 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000004 R12: 0000000000003430 R13: 000000000000081f R14: ffff888025079c18 R15: 0000000000000004 FS: 0000000000000000(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555d5db5c8 CR3: 000000000df80000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: stack_depot_fetch+0x28/0x60 lib/stackdepot.c:714 stack_depot_print+0x20/0x70 lib/stackdepot.c:752 ref_tracker_free+0x6ec/0x820 lib/ref_tracker.c:252 netdev_tracker_free include/linux/netdevice.h:4302 [inline] netdev_put include/linux/netdevice.h:4319 [inline] netdev_put include/linux/netdevice.h:4315 [inline] in_dev_finish_destroy+0xae/0x1d0 net/ipv4/devinet.c:266 in_dev_put include/linux/inetdevice.h:290 [inline] inet_rcu_free_ifa+0x93/0xb0 net/ipv4/devinet.c:236 rcu_do_batch kernel/rcu/tree.c:2546 [inline] rcu_core+0x79d/0x14d0 kernel/rcu/tree.c:2802 handle_softirqs+0x213/0x8f0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:console_flush_all+0x9a4/0xc60 kernel/printk/printk.c:3211 Code: 00 e8 90 01 28 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 be 44 20 00 48 85 db 0f 85 55 01 00 00 e8 80 49 20 00 fb 4c 89 e0 <48> c1 e8 03 42 80 3c 38 00 0f 84 11 ff ff ff 4c 89 e7 e8 b5 67 83 RSP: 0018:ffffc900007879d0 EFLAGS: 00000293 RAX: ffffffff8eeace78 RBX: 0000000000000000 RCX: ffffffff8199a752 RDX: ffff88801ead2440 RSI: ffffffff8199a760 RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000003 R12: ffffffff8eeace78 R13: ffffffff8eeace20 R14: ffffc90000787a60 R15: dffffc0000000000 __console_flush_and_unlock kernel/printk/printk.c:3269 [inline] console_unlock+0xd9/0x210 kernel/printk/printk.c:3309 vprintk_emit+0x424/0x6f0 kernel/printk/printk.c:2432 _printk+0xc8/0x100 kernel/printk/printk.c:2457 kauditd_printk_skb kernel/audit.c:546 [inline] kauditd_hold_skb+0x205/0x250 kernel/audit.c:581 kauditd_send_queue+0x236/0x290 kernel/audit.c:766 kauditd_thread+0x611/0xa60 kernel/audit.c:890 kthread+0x3af/0x750 kernel/kthread.c:464 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 ---------------- Code disassembly (best guess): 0: 00 e8 add %ch,%al 2: 90 nop 3: 01 28 add %ebp,(%rax) 5: 00 9c 5b 81 e3 00 02 add %bl,0x200e381(%rbx,%rbx,2) c: 00 00 add %al,(%rax) e: 31 ff xor %edi,%edi 10: 48 89 de mov %rbx,%rsi 13: e8 be 44 20 00 call 0x2044d6 18: 48 85 db test %rbx,%rbx 1b: 0f 85 55 01 00 00 jne 0x176 21: e8 80 49 20 00 call 0x2049a6 26: fb sti 27: 4c 89 e0 mov %r12,%rax * 2a: 48 c1 e8 03 shr $0x3,%rax <-- trapping instruction 2e: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) 33: 0f 84 11 ff ff ff je 0xffffff4a 39: 4c 89 e7 mov %r12,%rdi 3c: e8 .byte 0xe8 3d: b5 67 mov $0x67,%ch 3f: 83 .byte 0x83