netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 INFO: task kworker/0:1:11671 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/0:1 D27400 11671 2 0x80000000 Workqueue: ipv6_addrconf addrconf_verify_work Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 addrconf_verify_work+0xa/0x20 net/ipv6/addrconf.c:4476 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 INFO: task syz-executor.5:12381 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D27736 12381 8128 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 rtnl_lock net/core/rtnetlink.c:77 [inline] rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2463 netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351 netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227 __sys_sendmsg net/socket.c:2265 [inline] __do_sys_sendmsg net/socket.c:2274 [inline] __se_sys_sendmsg net/socket.c:2272 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f28e6765a39 Code: Bad RIP value. RSP: 002b:00007f28e3c78188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f28e68691a0 RCX: 00007f28e6765a39 RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000005 RBP: 00007f28e67bfc5f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff815e268f R14: 00007f28e3c78300 R15: 0000000000022000 Showing all locks held in the system: 3 locks held by kworker/0:0/5: #0: 00000000c2b3549d ((wq_completion)"events"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 0000000009df19dd (deferred_process_work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 000000009259a8ff (rtnl_mutex){+.+.}, at: switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:150 1 lock held by khungtaskd/1569: #0: 000000009871ba62 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 2 locks held by systemd-journal/4690: 1 lock held by in:imklog/7798: #0: 00000000db2c3d12 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 3 locks held by kworker/0:1/11671: #0: 0000000063d867e1 ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000ccebfef6 ((addr_chk_work).work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 000000009259a8ff (rtnl_mutex){+.+.}, at: addrconf_verify_work+0xa/0x20 net/ipv6/addrconf.c:4476 2 locks held by syz-executor.5/12305: 1 lock held by syz-executor.5/12381: #0: 000000009259a8ff (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline] #0: 000000009259a8ff (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1569 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 7798 Comm: in:imklog Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:mark_held_locks+0x24/0xf0 kernel/locking/lockdep.c:2793 Code: 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 41 57 41 56 41 55 49 89 fd 48 81 c7 80 08 00 00 48 89 fa 41 54 48 c1 ea 03 55 <53> 48 83 ec 08 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 91 00 00 00 41 RSP: 0018:ffff88809294f770 EFLAGS: 00000802 RAX: dffffc0000000000 RBX: ffff8880a94be000 RCX: 1ffff11015297d15 RDX: 1ffff11015297d10 RSI: 0000000000000001 RDI: ffff8880a94be880 RBP: ffffffff8198729d R08: ffffed101183f000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88804af892a0 R13: ffff8880a94be000 R14: ffff8880b59c3cc0 R15: 0000000000000286 FS: 00007f9afd6a2700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8a06df9a91 CR3: 00000000977ab000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __trace_hardirqs_on_caller kernel/locking/lockdep.c:2839 [inline] lockdep_hardirqs_on+0x3a8/0x5c0 kernel/locking/lockdep.c:2884 qlink_free mm/kasan/quarantine.c:150 [inline] qlist_free_all+0xed/0x140 mm/kasan/quarantine.c:166 quarantine_reduce+0x1a9/0x230 mm/kasan/quarantine.c:259 kasan_kmalloc+0xa2/0x160 mm/kasan/kasan.c:538 kmem_cache_alloc_trace+0x12f/0x380 mm/slab.c:3625 kmalloc include/linux/slab.h:515 [inline] syslog_print kernel/printk/printk.c:1337 [inline] do_syslog.part.0+0x24f/0x1510 kernel/printk/printk.c:1505 do_syslog+0x49/0x60 kernel/printk/printk.c:1486 kmsg_read+0x8a/0xb0 fs/proc/kmsg.c:40 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231 __vfs_read+0xf7/0x750 fs/read_write.c:416 vfs_read+0x194/0x3c0 fs/read_write.c:452 ksys_read+0x12b/0x2a0 fs/read_write.c:579 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f9affce522d Code: c1 20 00 00 75 10 b8 00 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 4e fc ff ff 48 89 04 24 b8 00 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 97 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007f9afd681580 EFLAGS: 00000293 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9affce522d RDX: 0000000000001fa0 RSI: 00007f9afd681da0 RDI: 0000000000000004 RBP: 000056328a4899d0 R08: 0000000000000000 R09: 0000000000000000 R10: 2ce33e6c02ce33e7 R11: 0000000000000293 R12: 00007f9afd681da0 R13: 0000000000001fa0 R14: 0000000000001f9f R15: 00007f9afd681e20 ---------------- Code disassembly (best guess): 0: 84 00 test %al,(%rax) 2: 00 00 add %al,(%rax) 4: 00 00 add %al,(%rax) 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 41 57 push %r15 12: 41 56 push %r14 14: 41 55 push %r13 16: 49 89 fd mov %rdi,%r13 19: 48 81 c7 80 08 00 00 add $0x880,%rdi 20: 48 89 fa mov %rdi,%rdx 23: 41 54 push %r12 25: 48 c1 ea 03 shr $0x3,%rdx 29: 55 push %rbp * 2a: 53 push %rbx <-- trapping instruction 2b: 48 83 ec 08 sub $0x8,%rsp 2f: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 33: 84 c0 test %al,%al 35: 74 08 je 0x3f 37: 3c 03 cmp $0x3,%al 39: 0f 8e 91 00 00 00 jle 0xd0 3f: 41 rex.B