R13: 00007ffca352fcff R14: 00007f489ff70300 R15: 0000000000022000 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 syz-executor.5:23537 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 D28624 23537 28001 0x80000000 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 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline] rwsem_down_read_failed+0x20a/0x390 kernel/locking/rwsem-xadd.c:309 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x44/0x80 kernel/locking/rwsem.c:26 exit_mm kernel/exit.c:512 [inline] do_exit+0x6e4/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 __do_sys_exit_group kernel/exit.c:978 [inline] __se_sys_exit_group kernel/exit.c:976 [inline] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:976 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f79bf724eb9 Code: Bad RIP value. RSP: 002b:00007ffc68183268 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007f79bf724eb9 RDX: 00007f79bf6d7afb RSI: ffffffffffffffbc RDI: 0000000000000000 RBP: 0000000000000000 R08: 000002be1219f8a3 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffc68183350 INFO: task syz-executor.5:23541 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 D29040 23541 28001 0x80000000 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 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline] rwsem_down_read_failed+0x20a/0x390 kernel/locking/rwsem-xadd.c:309 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x44/0x80 kernel/locking/rwsem.c:26 exit_mm kernel/exit.c:512 [inline] do_exit+0x6e4/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f79bf724eb9 Code: Bad RIP value. RSP: 002b:00007f79be09a218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f79bf837f68 RCX: 00007f79bf724eb9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f79bf837f68 RBP: 00007f79bf837f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f79bf837f6c R13: 00007ffc6818302f R14: 00007f79be09a300 R15: 0000000000022000 INFO: task syz-executor.5:23542 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 D28640 23542 28001 0x80000000 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 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline] rwsem_down_read_failed+0x20a/0x390 kernel/locking/rwsem-xadd.c:309 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x44/0x80 kernel/locking/rwsem.c:26 exit_mm kernel/exit.c:512 [inline] do_exit+0x6e4/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f79bf724eb9 Code: Bad RIP value. RSP: 002b:00007f79be079218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f79bf838038 RCX: 00007f79bf724eb9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f79bf838038 RBP: 00007f79bf838030 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f79bf83803c R13: 00007ffc6818302f R14: 00007f79be079300 R15: 0000000000022000 INFO: task syz-executor.5:23544 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 D30080 23544 28001 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 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline] rwsem_down_read_failed+0x20a/0x390 kernel/locking/rwsem-xadd.c:309 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x44/0x80 kernel/locking/rwsem.c:26 __do_page_fault+0x97f/0xd60 arch/x86/mm/fault.c:1348 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205 RIP: 0010:__get_user_4+0x21/0x30 arch/x86/lib/getuser.S:78 Code: 50 ff 31 c0 0f 01 ca c3 90 48 83 c0 03 72 55 65 48 8b 14 25 c0 df 01 00 48 3b 82 98 14 00 00 73 43 48 19 d2 48 21 d0 0f 01 cb <8b> 50 fd 31 c0 0f 01 ca c3 66 0f 1f 44 00 00 48 83 c0 07 72 25 65 RSP: 0018:ffff88809ce6fd60 EFLAGS: 00050206 RAX: 0000000020000087 RBX: 00007fffffffefc0 RCX: 1ffff11009d875b9 RDX: ffffffffffffffff RSI: ffffffff81765ebb RDI: 0000000000000286 RBP: 0000000000000001 R08: ffffffff8cd38068 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffffffffff R13: ffff88809ce6fe40 R14: 0000000020000080 R15: 0000000020000080 perf_copy_attr+0xb8/0x7a0 kernel/events/core.c:10275 __do_sys_perf_event_open kernel/events/core.c:10571 [inline] __se_sys_perf_event_open+0xb4/0x2720 kernel/events/core.c:10549 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f79bf724eb9 Code: Bad RIP value. RSP: 002b:00007f79be037168 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f79bf8381d0 RCX: 00007f79bf724eb9 RDX: 0000000000000001 RSI: ffffffffffffffff RDI: 0000000020000080 RBP: 00007f79bf77f08d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc6818302f R14: 00007f79be037300 R15: 0000000000022000 INFO: task syz-executor.5:23545 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 D29056 23545 28001 0x80000000 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 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline] rwsem_down_read_failed+0x20a/0x390 kernel/locking/rwsem-xadd.c:309 call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x44/0x80 kernel/locking/rwsem.c:26 exit_mm kernel/exit.c:512 [inline] do_exit+0x6e4/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f79bf724eb9 Code: Bad RIP value. RSP: 002b:00007f79be016218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f79bf8382a8 RCX: 00007f79bf724eb9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f79bf8382a8 RBP: 00007f79bf8382a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f79bf8382ac R13: 00007ffc6818302f R14: 00007f79be016300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1571: #0: 000000002cd9e32f (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7810: #0: 000000006549ef4d (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 3 locks held by rs:main Q:Reg/7811: #0: 00000000459a8d6e (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 #1: 0000000050a72c25 (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline] #1: 0000000050a72c25 (sb_writers#3){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548 #2: 000000002cd9e32f (rcu_read_lock){....}, at: is_bpf_text_address+0x0/0x1b0 kernel/bpf/core.c:533 2 locks held by agetty/7897: #0: 00000000adebce44 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000d65134fb (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1950 drivers/tty/n_tty.c:2154 1 lock held by syz-executor.5/23537: #0: 00000000a07334cb (&mm->mmap_sem){++++}, at: exit_mm kernel/exit.c:512 [inline] #0: 00000000a07334cb (&mm->mmap_sem){++++}, at: do_exit+0x6e4/0x2be0 kernel/exit.c:857 1 lock held by syz-executor.5/23541: #0: 00000000a07334cb (&mm->mmap_sem){++++}, at: exit_mm kernel/exit.c:512 [inline] #0: 00000000a07334cb (&mm->mmap_sem){++++}, at: do_exit+0x6e4/0x2be0 kernel/exit.c:857 1 lock held by syz-executor.5/23542: #0: 00000000a07334cb (&mm->mmap_sem){++++}, at: exit_mm kernel/exit.c:512 [inline] #0: 00000000a07334cb (&mm->mmap_sem){++++}, at: do_exit+0x6e4/0x2be0 kernel/exit.c:857 2 locks held by syz-executor.5/23543: 1 lock held by syz-executor.5/23544: #0: 00000000a07334cb (&mm->mmap_sem){++++}, at: __do_page_fault+0x97f/0xd60 arch/x86/mm/fault.c:1348 1 lock held by syz-executor.5/23545: #0: 00000000a07334cb (&mm->mmap_sem){++++}, at: exit_mm kernel/exit.c:512 [inline] #0: 00000000a07334cb (&mm->mmap_sem){++++}, at: do_exit+0x6e4/0x2be0 kernel/exit.c:857 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1571 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 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 7811 Comm: rs:main Q:Reg Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:69 [inline] RIP: 0010:write_comp_data+0x1d/0x70 kernel/kcov.c:122 Code: d1 48 89 11 c3 0f 1f 84 00 00 00 00 00 49 89 f1 49 89 fa 65 48 8b 34 25 c0 df 01 00 65 8b 05 7a 59 9f 7e a9 00 01 1f 00 75 4f <8b> 86 60 13 00 00 83 f8 03 75 44 48 8b 86 68 13 00 00 8b b6 64 13 RSP: 0018:ffff8880af427430 EFLAGS: 00000246 RAX: 0000000080000001 RBX: ffff8880ade93000 RCX: ffffffff836ea63a RDX: 0000000000000000 RSI: ffff8880a1864180 RDI: 0000000000000005 RBP: ffff8880abc6a814 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: ffffffff8c66505b R12: ffff8880abc6a840 R13: ffff8880abc6a800 R14: dffffc0000000000 R15: ffff8880abc6a848 FS: 00007fb1df7e8700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3fb147e000 CR3: 00000000a8a14000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: blk_req_zone_write_unlock include/linux/blkdev.h:2019 [inline] dd_insert_request block/mq-deadline.c:492 [inline] dd_insert_requests+0x28a/0x970 block/mq-deadline.c:533 blk_mq_sched_insert_request+0x504/0x760 block/blk-mq-sched.c:397 blk_mq_make_request+0x565/0x1c00 block/blk-mq.c:1945 generic_make_request+0x613/0xdf0 block/blk-core.c:2467 submit_bio+0xb1/0x430 block/blk-core.c:2576 submit_bh_wbc+0x5a7/0x760 fs/buffer.c:3090 submit_bh fs/buffer.c:3096 [inline] __sync_dirty_buffer+0x14e/0x320 fs/buffer.c:3191 ext4_write_inode+0x43c/0x4d0 fs/ext4/inode.c:5474 write_inode fs/fs-writeback.c:1244 [inline] __writeback_single_inode+0x733/0x11d0 fs/fs-writeback.c:1442 writeback_single_inode+0x2a1/0x440 fs/fs-writeback.c:1496 sync_inode fs/fs-writeback.c:2506 [inline] sync_inode_metadata+0x93/0xd0 fs/fs-writeback.c:2526 __generic_file_fsync+0x15f/0x1f0 fs/libfs.c:996 ext4_sync_file+0xa35/0x1420 fs/ext4/fsync.c:118 vfs_fsync_range+0x13a/0x220 fs/sync.c:197 generic_write_sync include/linux/fs.h:2750 [inline] ext4_file_write_iter+0x726/0xf20 fs/ext4/file.c:283 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x51b/0x770 fs/read_write.c:487 vfs_write+0x1f3/0x540 fs/read_write.c:549 ksys_write+0x12b/0x2a0 fs/read_write.c:599 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fb1e222c1cd Code: c2 20 00 00 75 10 b8 01 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ae fc ff ff 48 89 04 24 b8 01 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 f7 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007fb1df7e7590 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fb1d4021320 RCX: 00007fb1e222c1cd RDX: 00000000000006ad RSI: 00007fb1d4021320 RDI: 0000000000000006 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fb1d40210a0 R13: 00007fb1df7e75b0 R14: 000055d76a403360 R15: 00000000000006ad ---------------- Code disassembly (best guess): 0: 50 push %rax 1: ff 31 pushq (%rcx) 3: c0 0f 01 rorb $0x1,(%rdi) 6: ca c3 90 lret $0x90c3 9: 48 83 c0 03 add $0x3,%rax d: 72 55 jb 0x64 f: 65 48 8b 14 25 c0 df mov %gs:0x1dfc0,%rdx 16: 01 00 18: 48 3b 82 98 14 00 00 cmp 0x1498(%rdx),%rax 1f: 73 43 jae 0x64 21: 48 19 d2 sbb %rdx,%rdx 24: 48 21 d0 and %rdx,%rax 27: 0f 01 cb stac * 2a: 8b 50 fd mov -0x3(%rax),%edx <-- trapping instruction 2d: 31 c0 xor %eax,%eax 2f: 0f 01 ca clac 32: c3 retq 33: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) 39: 48 83 c0 07 add $0x7,%rax 3d: 72 25 jb 0x64 3f: 65 gs