------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: hrtimer hint: isotp_rx_timer_handler+0x0/0x170 include/linux/list.h:71 WARNING: CPU: 0 PID: 4858 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505 Modules linked in: CPU: 0 PID: 4858 Comm: systemd-udevd Not tainted 5.13.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:505 Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd a0 f8 c2 89 4c 89 ee 48 c7 c7 a0 ec c2 89 e8 4d e9 01 05 <0f> 0b 83 05 05 17 f6 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3 RSP: 0018:ffffc90000007a30 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: ffff88801d3f54c0 RSI: ffffffff815ce3a5 RDI: fffff52000000f38 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815c820e R11: 0000000000000000 R12: ffffffff896da7c0 R13: ffffffff89c2f2e0 R14: ffffffff816488b0 R15: dffffc0000000000 FS: 00007efd243c48c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33a2b000 CR3: 0000000017a9b000 CR4: 0000000000350ef0 Call Trace: __debug_check_no_obj_freed lib/debugobjects.c:987 [inline] debug_check_no_obj_freed+0x301/0x420 lib/debugobjects.c:1018 free_pages_prepare mm/page_alloc.c:1303 [inline] __free_pages_ok+0x254/0xce0 mm/page_alloc.c:1572 sk_prot_free net/core/sock.c:1747 [inline] __sk_destruct+0x6c6/0x900 net/core/sock.c:1832 sk_destruct+0xbd/0xe0 net/core/sock.c:1847 __sk_free+0xef/0x3d0 net/core/sock.c:1858 sk_free net/core/sock.c:1869 [inline] sock_put include/net/sock.h:1813 [inline] sock_efree+0x11d/0x140 net/core/sock.c:2169 skb_release_head_state+0x9f/0x250 net/core/skbuff.c:713 skb_release_all net/core/skbuff.c:724 [inline] __kfree_skb net/core/skbuff.c:740 [inline] consume_skb net/core/skbuff.c:896 [inline] consume_skb+0x89/0x160 net/core/skbuff.c:890 can_receive+0x394/0x580 net/can/af_can.c:670 can_rcv+0x120/0x1c0 net/can/af_can.c:696 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5459 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5573 process_backlog+0x232/0x6c0 net/core/dev.c:6437 __napi_poll+0xaf/0x440 net/core/dev.c:6985 napi_poll net/core/dev.c:7052 [inline] net_rx_action+0x801/0xb40 net/core/dev.c:7139 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559 invoke_softirq kernel/softirq.c:433 [inline] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 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:647 RIP: 0010:tomoyo_encode2.part.0+0x138/0x3a0 security/tomoyo/realpath.c:57 Code: 8d 45 df bf 5d 00 00 00 89 c6 88 04 24 e8 60 a5 dc fd 0f b6 04 24 3c 5d 0f 87 e4 00 00 00 e8 9f 9e dc fd 48 8d 53 01 48 89 d8 <48> 89 d9 48 c1 e8 03 83 e1 07 42 0f b6 04 38 38 c8 7f 08 84 c0 0f RSP: 0018:ffffc90000eefa98 EFLAGS: 00000293 RAX: ffff8880133f3a8e RBX: ffff8880133f3a8e RCX: 0000000000000000 RDX: ffff8880133f3a8f RSI: ffffffff83983e51 RDI: 0000000000000003 RBP: 0000000000000069 R08: 000000000000002f R09: 0000000000000048 R10: ffffffff83983e40 R11: 000000000000005d R12: ffff88806bd3afdd R13: 000000000000002f R14: 000000000000000e R15: dffffc0000000000 tomoyo_encode2 security/tomoyo/realpath.c:31 [inline] tomoyo_encode+0x28/0x50 security/tomoyo/realpath.c:80 tomoyo_realpath_from_path+0x186/0x620 security/tomoyo/realpath.c:288 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x21b/0x400 security/tomoyo/file.c:822 security_inode_getattr+0xcf/0x140 security/security.c:1332 vfs_getattr fs/stat.c:139 [inline] vfs_fstat+0x43/0xb0 fs/stat.c:164 __do_sys_newfstat+0x81/0x100 fs/stat.c:404 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7efd232362e2 Code: 48 8b 05 b9 db 2b 00 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 83 ff 01 77 33 48 63 fe b8 05 00 00 00 48 89 d6 0f 05 <48> 3d 00 f0 ff ff 77 06 f3 c3 0f 1f 40 00 48 8b 15 81 db 2b 00 f7 RSP: 002b:00007fff6d8b0348 EFLAGS: 00000246 ORIG_RAX: 0000000000000005 RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007efd232362e2 RDX: 00007fff6d8b0350 RSI: 00007fff6d8b0350 RDI: 0000000000000010 RBP: 00007efd243c4710 R08: 0000556b56d37ef0 R09: 7269762f73656369 R10: 00007efd234f4b58 R11: 0000000000000246 R12: 0000000000000000 R13: 0000556b56d376b0 R14: 00000000000000fe R15: 0000556b56d376b0