PID = 0 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a549cf64 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 ffff8801a549cf80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 [] do_readv+0xe6/0x250 fs/read_write.c:924 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 ffff8801a549cf60 ffffed0034a939ec ffff8801a549cf64 ffff8801a6f378d8 ffff8801a549ce80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801a549cf60 ffffed0034a939ec ffff8801a549cf64 ffff8801a6f378d8 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 ffff8801a549cf60 ffffed0034a939ec ffff8801a549cf64 ffff8801a6f378d8 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a549cf64 Allocated: [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 Object at ffff8801a549cf00, in cache fasync_cache size: 96 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 Allocated: save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 Read of size 4 by task syz-executor3/3622 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 ffff8801a549cf60 ffffed0034a939ec ffff8801a549cf64 ffff8801a6f378d8 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a549cf64 Object at ffff8801a549cf00, in cache fasync_cache size: 96 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 entry_SYSCALL_64_fastpath+0x23/0xc6 PID = 0 Allocated: [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 ffff8801a549cf60 ffffed0034a939ec ffff8801a549cf64 ffff8801a6f378d8 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 Call Trace: [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] do_readv+0xe6/0x250 fs/read_write.c:924 Call Trace: kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801a549cf60 ffffed0034a939ec ffff8801a549cf64 ffff8801a6f378d8 Call Trace: [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 Call Trace: kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 CPU: 0 PID: 3622 Comm: syz-executor3 Tainted: G B 4.9.67-gf26d3c7 #106 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801a549d000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a549d000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 ffff8801a549ce80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 Read of size 4 by task syz-executor3/3622 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ================================================================== PID = 0 Allocated: ffff8801a549ce80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 ffff8801a549ce80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 Memory state around the buggy address: entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a549ce80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ffff8801a549ce80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801a549cf60 ffffed0034a939ec ffff8801a549cf64 ffff8801a6f378d8 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 Allocated: __do_softirq+0x206/0x951 kernel/softirq.c:284 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 ffff8801a549cf80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801a549ce00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 ffff8801a549ce00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ffff8801a549d000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 PID = 0 [] entry_SYSCALL_64_fastpath+0x23/0xc6 ffffffff8153a2cc ffffed0034a939ec ffff8801d77ff500 0000000000000000 Call Trace: kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 ^ ffff8801a549ce80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 entry_SYSCALL_64_fastpath+0x23/0xc6 Read of size 4 by task syz-executor3/3622 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 Call Trace: slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 ffff8801a549cf60 ffffed0034a939ec ffff8801a549cf64 ffff8801a6f378d8 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801a549ce80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 ffff8801a549cf60 ffffed0034a939ec ffff8801a549cf64 ffff8801a6f378d8 [] do_readv+0xe6/0x250 fs/read_write.c:924 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 CPU: 0 PID: 3622 Comm: syz-executor3 Tainted: G B 4.9.67-gf26d3c7 #106 Freed: [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 __do_softirq+0x206/0x951 kernel/softirq.c:284 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ================================================================== Memory state around the buggy address: [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] entry_SYSCALL_64_fastpath+0x23/0xc6 ffff8801a549d000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 PID = 3622 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 ffff8801a549cf60 ffffed0034a939ec ffff8801a549cf64 ffff8801a6f378d8 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 CPU: 0 PID: 3622 Comm: syz-executor3 Tainted: G B 4.9.67-gf26d3c7 #106 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 >ffff8801a549cf00: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ffff8801a549ce80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 PID = 3622 ffffffff8153a2cc ffffed0034a939ec ffff8801d77ff500 0000000000000000 ffffffff8153a2cc ffffed0034a939ec ffff8801d77ff500 0000000000000000 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 Object at ffff8801a549cf00, in cache fasync_cache size: 96 ffff8801a549ce80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 PID = 0 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 PID = 3622 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 Object at ffff8801a549cf00, in cache fasync_cache size: 96 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 Freed: ffff8801a549cf80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] entry_SYSCALL_64_fastpath+0x23/0xc6 ================================================================== ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 Allocated: ================================================================== [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 CPU: 0 PID: 3622 Comm: syz-executor3 Tainted: G B 4.9.67-gf26d3c7 #106 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 [] do_readv+0xe6/0x250 fs/read_write.c:924 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801a549cf80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Read of size 4 by task syz-executor3/3622 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffffffff8153a2cc ffffed0034a939ec ffff8801d77ff500 0000000000000000 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 ffff8801a549d000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ffff8801a549cf80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 Freed: ffff8801a549ce80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Allocated: Call Trace: BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a549cf64 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 PID = 0 Call Trace: >ffff8801a549cf00: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc Allocated: [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 PID = 3622 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 Memory state around the buggy address: SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 ffff8801a549ce80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 ffff8801a549ce00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 [] do_readv+0xe6/0x250 fs/read_write.c:924 ffffffff8153a2cc ffffed0034a939ec ffff8801d77ff500 0000000000000000 [] do_readv+0xe6/0x250 fs/read_write.c:924 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 ffff8801a549ce80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] do_readv+0xe6/0x250 fs/read_write.c:924 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a549cf60 ffffed0034a939ec ffff8801a549cf64 ffff8801a6f378d8 PID = 3622 ffff8801a549d000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 PID = 3622 ffff8801a549d000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Read of size 4 by task syz-executor3/3622 [] do_readv+0xe6/0x250 fs/read_write.c:924 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 entry_SYSCALL_64_fastpath+0x23/0xc6 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a549cf64 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 PID = 3622 CPU: 0 PID: 3622 Comm: syz-executor3 Tainted: G B 4.9.67-gf26d3c7 #106 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 ================================================================== Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 PID = 0 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 ffff8801a549ce80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 [] do_readv+0xe6/0x250 fs/read_write.c:924 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 ffff8801a549cf80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 [] do_readv+0xe6/0x250 fs/read_write.c:924 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 ffff8801a549ce80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 ================================================================== BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a549cf64 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 Read of size 4 by task syz-executor3/3622 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 [] do_readv+0xe6/0x250 fs/read_write.c:924 ^ ffffffff8153a2cc ffffed0034a939ec ffff8801d77ff500 0000000000000000 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801a549ce80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a549cf60 ffffed0034a939ec ffff8801a549cf64 ffff8801a6f378d8 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Read of size 4 by task syz-executor3/3622 Allocated: [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 PID = 3622 ffff8801a549d000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801a549cf80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 ffff8801a549cf80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 Call Trace: CPU: 0 PID: 3622 Comm: syz-executor3 Tainted: G B 4.9.67-gf26d3c7 #106 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a549cf64 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a549cf64 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 [] do_readv+0xe6/0x250 fs/read_write.c:924 ffff8801a549cf60 ffffed0034a939ec ffff8801a549cf64 ffff8801a6f378d8 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 ffff8801a6f378b0 ffffffff81d906e9 ffff8801d77ff500 ffff8801a549cf00 [