Hello, syzbot found the following issue on: HEAD commit: f81e94e91878 Add linux-next specific files for 20211125 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=168d578db00000 kernel config: https://syzkaller.appspot.com/x/.config?x=be9183de0824e4d7 dashboard link: https://syzkaller.appspot.com/bug?extid=4f1a237abaf14719db49 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4f1a237abaf14719db49@xxxxxxxxxxxxxxxxxxxxxxxxx INFO: task syz-executor.1:32540 can't die for more than 143 seconds. task:syz-executor.1 state:D stack:27192 pid:32540 ppid: 14712 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:4983 [inline] __schedule+0xab2/0x4d90 kernel/sched/core.c:6293 schedule+0xd2/0x260 kernel/sched/core.c:6366 rwsem_down_write_slowpath+0x761/0x1130 kernel/locking/rwsem.c:1117 __down_write_common kernel/locking/rwsem.c:1272 [inline] __down_write_common kernel/locking/rwsem.c:1269 [inline] __down_write kernel/locking/rwsem.c:1281 [inline] down_write+0x135/0x150 kernel/locking/rwsem.c:1528 filemap_invalidate_lock include/linux/fs.h:828 [inline] blk_ioctl_zeroout block/ioctl.c:155 [inline] blkdev_common_ioctl+0xcae/0x1790 block/ioctl.c:459 blkdev_ioctl+0x2ca/0x800 block/ioctl.c:582 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f040b032ae9 RSP: 002b:00007f0409fa8188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f040b145f60 RCX: 00007f040b032ae9 RDX: 0000000020000080 RSI: 000000000000127f RDI: 0000000000000004 RBP: 00007f040b08cff7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe1ed4671f R14: 00007f0409fa8300 R15: 0000000000022000 </TASK> INFO: task syz-executor.1:32540 blocked for more than 144 seconds. Not tainted 5.16.0-rc2-next-20211125-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:27192 pid:32540 ppid: 14712 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:4983 [inline] __schedule+0xab2/0x4d90 kernel/sched/core.c:6293 schedule+0xd2/0x260 kernel/sched/core.c:6366 rwsem_down_write_slowpath+0x761/0x1130 kernel/locking/rwsem.c:1117 __down_write_common kernel/locking/rwsem.c:1272 [inline] __down_write_common kernel/locking/rwsem.c:1269 [inline] __down_write kernel/locking/rwsem.c:1281 [inline] down_write+0x135/0x150 kernel/locking/rwsem.c:1528 filemap_invalidate_lock include/linux/fs.h:828 [inline] blk_ioctl_zeroout block/ioctl.c:155 [inline] blkdev_common_ioctl+0xcae/0x1790 block/ioctl.c:459 blkdev_ioctl+0x2ca/0x800 block/ioctl.c:582 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f040b032ae9 RSP: 002b:00007f0409fa8188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f040b145f60 RCX: 00007f040b032ae9 RDX: 0000000020000080 RSI: 000000000000127f RDI: 0000000000000004 RBP: 00007f040b08cff7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe1ed4671f R14: 00007f0409fa8300 R15: 0000000000022000 </TASK> INFO: task syz-executor.3:32562 can't die for more than 144 seconds. task:syz-executor.3 state:R running task stack:24976 pid:32562 ppid: 12533 flags:0x00004006 Call Trace: <TASK> context_switch kernel/sched/core.c:4983 [inline] __schedule+0xab2/0x4d90 kernel/sched/core.c:6293 </TASK> INFO: task syz-executor.3:32564 can't die for more than 145 seconds. task:syz-executor.3 state:R running task stack:25248 pid:32564 ppid: 12533 flags:0x00004006 Call Trace: <TASK> context_switch kernel/sched/core.c:4983 [inline] __schedule+0xab2/0x4d90 kernel/sched/core.c:6293 </TASK> INFO: task syz-executor.2:32582 can't die for more than 146 seconds. task:syz-executor.2 state:D stack:27192 pid:32582 ppid: 14575 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:4983 [inline] __schedule+0xab2/0x4d90 kernel/sched/core.c:6293 schedule+0xd2/0x260 kernel/sched/core.c:6366 rwsem_down_write_slowpath+0x761/0x1130 kernel/locking/rwsem.c:1117 __down_write_common kernel/locking/rwsem.c:1272 [inline] __down_write_common kernel/locking/rwsem.c:1269 [inline] __down_write kernel/locking/rwsem.c:1281 [inline] down_write+0x135/0x150 kernel/locking/rwsem.c:1528 filemap_invalidate_lock include/linux/fs.h:828 [inline] blk_ioctl_zeroout block/ioctl.c:155 [inline] blkdev_common_ioctl+0xcae/0x1790 block/ioctl.c:459 blkdev_ioctl+0x2ca/0x800 block/ioctl.c:582 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f9254295ae9 RSP: 002b:00007f925320b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f92543a8f60 RCX: 00007f9254295ae9 RDX: 0000000020000080 RSI: 000000000000127f RDI: 0000000000000004 RBP: 00007f92542efff7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe50e9b58f R14: 00007f925320b300 R15: 0000000000022000 </TASK> INFO: task syz-executor.2:32582 blocked for more than 147 seconds. Not tainted 5.16.0-rc2-next-20211125-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:27192 pid:32582 ppid: 14575 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:4983 [inline] __schedule+0xab2/0x4d90 kernel/sched/core.c:6293 schedule+0xd2/0x260 kernel/sched/core.c:6366 rwsem_down_write_slowpath+0x761/0x1130 kernel/locking/rwsem.c:1117 __down_write_common kernel/locking/rwsem.c:1272 [inline] __down_write_common kernel/locking/rwsem.c:1269 [inline] __down_write kernel/locking/rwsem.c:1281 [inline] down_write+0x135/0x150 kernel/locking/rwsem.c:1528 filemap_invalidate_lock include/linux/fs.h:828 [inline] blk_ioctl_zeroout block/ioctl.c:155 [inline] blkdev_common_ioctl+0xcae/0x1790 block/ioctl.c:459 blkdev_ioctl+0x2ca/0x800 block/ioctl.c:582 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f9254295ae9 RSP: 002b:00007f925320b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f92543a8f60 RCX: 00007f9254295ae9 RDX: 0000000020000080 RSI: 000000000000127f RDI: 0000000000000004 RBP: 00007f92542efff7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe50e9b58f R14: 00007f925320b300 R15: 0000000000022000 </TASK> INFO: task syz-executor.5:32584 can't die for more than 147 seconds. task:syz-executor.5 state:D stack:28496 pid:32584 ppid: 10070 flags:0x00000004 Call Trace: <TASK> context_switch kernel/sched/core.c:4983 [inline] __schedule+0xab2/0x4d90 kernel/sched/core.c:6293 schedule+0xd2/0x260 kernel/sched/core.c:6366 rwsem_down_write_slowpath+0x761/0x1130 kernel/locking/rwsem.c:1117 __down_write_common kernel/locking/rwsem.c:1272 [inline] __down_write_common kernel/locking/rwsem.c:1269 [inline] __down_write kernel/locking/rwsem.c:1281 [inline] down_write+0x135/0x150 kernel/locking/rwsem.c:1528 filemap_invalidate_lock include/linux/fs.h:828 [inline] blk_ioctl_zeroout block/ioctl.c:155 [inline] blkdev_common_ioctl+0xcae/0x1790 block/ioctl.c:459 blkdev_ioctl+0x2ca/0x800 block/ioctl.c:582 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fb7df573ae9 RSP: 002b:00007fb7de4e9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fb7df686f60 RCX: 00007fb7df573ae9 RDX: 0000000020000080 RSI: 000000000000127f RDI: 0000000000000004 RBP: 00007fb7df5cdff7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd0303ab7f R14: 00007fb7de4e9300 R15: 0000000000022000 </TASK> INFO: task syz-executor.5:32584 blocked for more than 148 seconds. Not tainted 5.16.0-rc2-next-20211125-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:28496 pid:32584 ppid: 10070 flags:0x00000004 Call Trace: <TASK> context_switch kernel/sched/core.c:4983 [inline] __schedule+0xab2/0x4d90 kernel/sched/core.c:6293 schedule+0xd2/0x260 kernel/sched/core.c:6366 rwsem_down_write_slowpath+0x761/0x1130 kernel/locking/rwsem.c:1117 __down_write_common kernel/locking/rwsem.c:1272 [inline] __down_write_common kernel/locking/rwsem.c:1269 [inline] __down_write kernel/locking/rwsem.c:1281 [inline] down_write+0x135/0x150 kernel/locking/rwsem.c:1528 filemap_invalidate_lock include/linux/fs.h:828 [inline] blk_ioctl_zeroout block/ioctl.c:155 [inline] blkdev_common_ioctl+0xcae/0x1790 block/ioctl.c:459 blkdev_ioctl+0x2ca/0x800 block/ioctl.c:582 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fb7df573ae9 RSP: 002b:00007fb7de4e9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fb7df686f60 RCX: 00007fb7df573ae9 RDX: 0000000020000080 RSI: 000000000000127f RDI: 0000000000000004 RBP: 00007fb7df5cdff7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd0303ab7f R14: 00007fb7de4e9300 R15: 0000000000022000 </TASK> Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffffffff8bb83220 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458 2 locks held by kswapd0/98: 1 lock held by kswapd1/99: 2 locks held by kworker/u4:4/302: #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2270 #1: ffff8880b9d279c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3e7/0x4e0 kernel/sched/psi.c:891 1 lock held by in:imklog/6219: #0: ffff888077cd0d70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990 2 locks held by agetty/6483: #0: ffff888078937098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:252 #1: ffffc90001a5c2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2113 2 locks held by kworker/u4:7/9062: 1 lock held by syz-executor.1/32540: #0: ffff88814087f348 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:828 [inline] #0: ffff88814087f348 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:155 [inline] #0: ffff88814087f348 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0xcae/0x1790 block/ioctl.c:459 1 lock held by syz-executor.3/32562: 1 lock held by syz-executor.3/32564: 1 lock held by syz-executor.2/32582: #0: ffff88814087f348 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:828 [inline] #0: ffff88814087f348 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:155 [inline] #0: ffff88814087f348 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0xcae/0x1790 block/ioctl.c:459 1 lock held by syz-executor.5/32584: #0: ffff88814087f348 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:828 [inline] #0: ffff88814087f348 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:155 [inline] #0: ffff88814087f348 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0xcae/0x1790 block/ioctl.c:459 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc2-next-20211125-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:256 [inline] watchdog+0xcb7/0xed0 kernel/hung_task.c:413 kthread+0x405/0x4f0 kernel/kthread.c:345 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 </TASK> Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 2958 Comm: systemd-journal Not tainted 5.16.0-rc2-next-20211125-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x7/0x60 kernel/kcov.c:200 Code: 49 00 5d be 03 00 00 00 e9 06 e8 6a 02 66 0f 1f 44 00 00 48 8b be b0 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 65 8b 05 19 8b 8a 7e <89> c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 40 70 02 00 a9 RSP: 0018:ffffc90001aafdc8 EFLAGS: 00000293 RAX: 0000000080000000 RBX: ffff88802ca65a00 RCX: ffff88807b17ba80 RDX: 0000000000000000 RSI: ffff88807b17ba80 RDI: 0000000000000003 RBP: ffff8880aca65a00 R08: ffff8880aca65a00 R09: 000000000000002e R10: ffffffff8134ed58 R11: 000000000000003f R12: 000000002ca65a00 R13: 000000000000002e R14: ffffea0000000000 R15: ffff88802ca65a00 FS: 00007f26fa2bd8c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f26f7c09000 CR3: 000000007f7df000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> phys_addr_valid arch/x86/mm/physaddr.h:7 [inline] __phys_addr+0xa7/0x140 arch/x86/mm/physaddr.c:28 virt_to_head_page include/linux/mm.h:861 [inline] qlink_to_cache mm/kasan/quarantine.c:120 [inline] qlist_free_all+0x76/0xf0 mm/kasan/quarantine.c:162 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:272 __kasan_slab_alloc+0xa2/0xc0 mm/kasan/common.c:444 kasan_slab_alloc include/linux/kasan.h:259 [inline] slab_post_alloc_hook mm/slab.h:519 [inline] slab_alloc_node mm/slub.c:3234 [inline] slab_alloc mm/slub.c:3242 [inline] kmem_cache_alloc+0x202/0x3a0 mm/slub.c:3247 getname_flags.part.0+0x50/0x4f0 fs/namei.c:138 getname_flags include/linux/audit.h:323 [inline] getname fs/namei.c:217 [inline] __do_sys_mkdir fs/namei.c:3929 [inline] __se_sys_mkdir fs/namei.c:3927 [inline] __x64_sys_mkdir+0xda/0x140 fs/namei.c:3927 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f26f9578687 Code: 00 b8 ff ff ff ff c3 0f 1f 40 00 48 8b 05 09 d8 2b 00 64 c7 00 5f 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 d7 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007ffe28596978 EFLAGS: 00000293 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007ffe28599890 RCX: 00007f26f9578687 RDX: 00007f26f9fe9a00 RSI: 00000000000001ed RDI: 0000564b999038a0 RBP: 00007ffe285969b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000069 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ffe28599890 R15: 00007ffe28596ea0 </TASK> ---------------- Code disassembly (best guess): 0: 49 00 5d be rex.WB add %bl,-0x42(%r13) 4: 03 00 add (%rax),%eax 6: 00 00 add %al,(%rax) 8: e9 06 e8 6a 02 jmpq 0x26ae813 d: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) 13: 48 8b be b0 01 00 00 mov 0x1b0(%rsi),%rdi 1a: e8 b4 ff ff ff callq 0xffffffd3 1f: 31 c0 xor %eax,%eax 21: c3 retq 22: 90 nop 23: 65 8b 05 19 8b 8a 7e mov %gs:0x7e8a8b19(%rip),%eax # 0x7e8a8b43 * 2a: 89 c1 mov %eax,%ecx <-- trapping instruction 2c: 48 8b 34 24 mov (%rsp),%rsi 30: 81 e1 00 01 00 00 and $0x100,%ecx 36: 65 48 8b 14 25 40 70 mov %gs:0x27040,%rdx 3d: 02 00 3f: a9 .byte 0xa9 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
