------------[ cut here ]------------ refcount_t: decrement hit 0; leaking memory. WARNING: CPU: 0 PID: 2239 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0 lib/refcount.c:31 Modules linked in: CPU: 0 PID: 2239 Comm: syz-executor.5 Not tainted 5.12.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 lib/refcount.c:31 Code: 1d 6a 5a e8 09 31 ff 89 de e8 8d 1a ab fd 84 db 75 e0 e8 d4 13 ab fd 48 c7 c7 a0 e1 c1 89 c6 05 4a 5a e8 09 01 e8 2e 36 fb 04 <0f> 0b eb c4 e8 b8 13 ab fd 0f b6 1d 39 5a e8 09 31 ff 89 de e8 58 RSP: 0018:ffffc90000007e10 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88806e683880 RSI: ffffffff815c51f5 RDI: fffff52000000fb4 RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815bdf8e R11: 0000000000000000 R12: ffff888067346000 R13: ffff888067346568 R14: ffff8880312e5de0 R15: 0000000000000000 FS: 00007fe20b5f8700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa00798f000 CR3: 000000006b061000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __refcount_dec include/linux/refcount.h:344 [inline] refcount_dec include/linux/refcount.h:359 [inline] dev_put include/linux/netdevice.h:4135 [inline] in_dev_finish_destroy+0x172/0x1b0 net/ipv4/devinet.c:244 in_dev_put include/linux/inetdevice.h:265 [inline] in_dev_rcu_put+0x83/0xb0 net/ipv4/devinet.c:301 rcu_do_batch kernel/rcu/tree.c:2559 [inline] rcu_core+0x74a/0x12f0 kernel/rcu/tree.c:2794 __do_softirq+0x29b/0x9f6 kernel/softirq.c:345 invoke_softirq kernel/softirq.c:221 [inline] __irq_exit_rcu kernel/softirq.c:422 [inline] irq_exit_rcu+0x134/0x200 kernel/softirq.c:434 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632 RIP: 0010:__local_bh_enable_ip+0xa8/0x120 kernel/softirq.c:205 Code: 1d dd d3 bc 7e 65 8b 05 d6 d3 bc 7e a9 00 ff ff 00 74 45 bf 01 00 00 00 e8 f5 0d 09 00 e8 70 c9 34 00 fb 65 8b 05 b8 d3 bc 7e <85> c0 74 58 5b 5d c3 65 8b 05 e6 da bc 7e 85 c0 75 a2 0f 0b eb 9e RSP: 0018:ffffc900031cf958 EFLAGS: 00000202 RAX: 0000000080000000 RBX: 00000000fffffe00 RCX: 1ffffffff1b8a791 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffffff83ad549b R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff8179e5a8 R11: 0000000000000928 R12: 0000000000000000 R13: ffff88806bee94c4 R14: 0000000000000000 R15: 0000000000000000 aead_check_key.isra.0+0x7b/0x200 crypto/algif_aead.c:406 aead_recvmsg_nokey+0x3e/0x90 crypto/algif_aead.c:440 sock_recvmsg_nosec net/socket.c:888 [inline] ____sys_recvmsg+0x527/0x600 net/socket.c:2567 ___sys_recvmsg+0x127/0x200 net/socket.c:2611 do_recvmmsg+0x24d/0x6d0 net/socket.c:2705 __sys_recvmmsg net/socket.c:2784 [inline] __do_sys_recvmmsg net/socket.c:2807 [inline] __se_sys_recvmmsg net/socket.c:2800 [inline] __x64_sys_recvmmsg+0x20b/0x260 net/socket.c:2800 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x466459 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe20b5f8188 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 0000000000466459 RDX: 03ffffffffffff67 RSI: 0000000020002440 RDI: 0000000000000004 RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008 R13: 00007ffd076cbdbf R14: 00007fe20b5f8300 R15: 0000000000022000