================================================================== ================================================================== BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ^ ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 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 [] __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_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 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 Read of size 4 by task syz-executor0/30009 Object at ffff8801c6091580, in cache fasync_cache size: 96 ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc Memory state around the buggy address: ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ================================================================== Read of size 4 by task syz-executor0/30009 Freed: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 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 ^ set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 ffff8801c6091480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801c6091600: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== Read of size 4 by task syz-executor0/30009 [] 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 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801c6091680: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c6091680: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc entry_SYSCALL_64_fastpath+0x23/0xc6 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 __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 ffff8801c6091600: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c6091480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c6091480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c6091600: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc entry_SYSCALL_64_fastpath+0x23/0xc6 ^ fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 entry_SYSCALL_64_fastpath+0x23/0xc6 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 ================================================================== BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ^ sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 [] 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 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 Allocated: >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 ================================================================== ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ^ entry_SYSCALL_64_fastpath+0x23/0xc6 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 PID = 30001 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 __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 ffff8801c6091480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801c6091600: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Read of size 4 by task syz-executor0/30009 [] 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 CPU: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 [] __vfs_read+0x103/0x670 fs/read_write.c:452 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801c6091680: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc CPU: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 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_read+0x11e/0x380 fs/read_write.c:475 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801c6091480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 Read of size 4 by task syz-executor0/30009 Allocated: ^ [] vfs_read+0x11e/0x380 fs/read_write.c:475 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 Freed: kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801c6091600: 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 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 Read of size 4 by task syz-executor0/30009 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 CPU: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 ^ ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 [] __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 Object at ffff8801c6091580, in cache fasync_cache size: 96 ================================================================== Object at ffff8801c6091580, in cache fasync_cache size: 96 ^ CPU: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 CPU: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 [] __vfs_read+0x103/0x670 fs/read_write.c:452 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ================================================================== Read of size 4 by task syz-executor0/30009 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 Memory state around the buggy address: ffff8801c6091680: 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 entry_SYSCALL_64_fastpath+0x23/0xc6 [] 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_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 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ffff8801c6091680: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc __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 ^ CPU: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 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 [] 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 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c6091480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c6091680: 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 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ^ [] __vfs_read+0x103/0x670 fs/read_write.c:452 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] 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 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ================================================================== Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __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 ================================================================== ffff8801c6091680: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Allocated: ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 Memory state around the buggy address: Memory state around the buggy address: ffff8801c6091480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc __do_softirq+0x206/0x951 kernel/softirq.c:284 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] 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 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 ^ entry_SYSCALL_64_fastpath+0x23/0xc6 Call Trace: >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 Call Trace: ffff8801c6091500: 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 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 Freed: [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ffff8801c6091600: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc 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 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 Read of size 4 by task syz-executor0/30009 ffff8801c6091500: 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 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Call Trace: >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 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 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 ^ Allocated: ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 Read of size 4 by task syz-executor0/30009 Memory state around the buggy address: ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Freed: save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 Read of size 4 by task syz-executor0/30009 __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 ffff8801c6091600: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] vfs_read+0x11e/0x380 fs/read_write.c:475 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 CPU: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c6091480: 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 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 ================================================================== fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ================================================================== ================================================================== sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 ffff8801c6091600: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc CPU: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 [] __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: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 ================================================================== sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 Call Trace: ================================================================== SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 Call Trace: ================================================================== BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] __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 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 Allocated: ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 ffff8801c6091500: 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 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 ffff8801c6091600: 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 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 Read of size 4 by task syz-executor0/30009 ffff8801c6091480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __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_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Call Trace: >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 Read of size 4 by task syz-executor0/30009 ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c6091680: 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 ffff8801c6091600: 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 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 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 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 PID = 11156 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801c6091600: 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 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] 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 entry_SYSCALL_64_fastpath+0x23/0xc6 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 Freed: [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ffff8801c6091680: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] 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 Allocated: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c6091680: 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 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] __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 __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 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffff8801c6091600: 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 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 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 ffff8801c6091600: 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 PID = 30001 [] 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 [] 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+0x43/0xd0 mm/kasan/kasan.c:495 [] __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 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 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] __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 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 Allocated: ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] __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 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 Read of size 4 by task syz-executor0/30009 ffff8801c6091480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 CPU: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 Read of size 4 by task syz-executor0/30009 ffff8801c6091500: 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 entry_SYSCALL_64_fastpath+0x23/0xc6 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 ffff8801c6091480: 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 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 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 entry_SYSCALL_64_fastpath+0x23/0xc6 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 Read of size 4 by task syz-executor0/30009 ffff8801c6091500: 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 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 Call Trace: ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc 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 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 Read of size 4 by task syz-executor0/30009 ffff8801c6091480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ffff8801c6091600: 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 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ================================================================== [] vfs_read+0x11e/0x380 fs/read_write.c:475 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 ================================================================== [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 ================================================================== ^ [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] __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 __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 Memory state around the buggy address: ffff8801c6091480: 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 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 Read of size 4 by task syz-executor0/30009 ffff8801c6091480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 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 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 __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 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 __do_softirq+0x206/0x951 kernel/softirq.c:284 ================================================================== [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] 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 Call Trace: >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 CPU: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 Call Trace: >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Call Trace: ffff8801c6091480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 Call Trace: ^ [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] 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 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 CPU: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 Call Trace: >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] 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 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 Read of size 4 by task syz-executor0/30009 ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __vfs_read+0x103/0x670 fs/read_write.c:452 Allocated: ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffff8801c6091480: 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 Call Trace: ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] __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 ffff8801c6091500: 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 ^ [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c6091600: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Call Trace: ffff8801c6091680: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 Call Trace: ffff8801c6091600: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 Memory state around the buggy address: Memory state around the buggy address: Memory state around the buggy address: ffff8801c6091500: 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 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 Read of size 4 by task syz-executor0/30009 ffff8801c6091480: 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 >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 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 = 11156 ^ __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 __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 Object at ffff8801c6091580, in cache fasync_cache size: 96 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 ^ >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc __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 Call Trace: ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 ================================================================== ================================================================== [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ================================================================== ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 PID = 30001 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 CPU: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 Read of size 4 by task syz-executor0/30009 ffff8801c6091480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 CPU: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 Read of size 4 by task syz-executor0/30009 ffff8801c6091500: 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 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 entry_SYSCALL_64_fastpath+0x23/0xc6 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 Call Trace: ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 Call Trace: ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Call Trace: ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 Call Trace: ffff8801c6091480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] 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 Call Trace: ^ [] __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 Memory state around the buggy address: __do_softirq+0x206/0x951 kernel/softirq.c:284 [] 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 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 entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Call Trace: ^ [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] entry_SYSCALL_64_fastpath+0x23/0xc6 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 Object at ffff8801c6091580, in cache fasync_cache size: 96 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 ffff8801c6091680: 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_free_rcu+0x1d/0x20 fs/fcntl.c:563 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 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 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] 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 Call Trace: >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc Call Trace: ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 Read of size 4 by task syz-executor0/30009 ffff8801c6091500: 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 entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 Read of size 4 by task syz-executor0/30009 ffff8801c6091480: 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 ffff8801c6091600: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc PID = 30001 ffff8801c6091600: 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 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 Read of size 4 by task syz-executor0/30009 ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 Read of size 4 by task syz-executor0/30009 ffff8801c6091500: 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 entry_SYSCALL_64_fastpath+0x23/0xc6 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 CPU: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 Read of size 4 by task syz-executor0/30009 ffff8801c6091480: 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 ffff8801c6091680: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] 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 ffff8801c6091680: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Freed: [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 entry_SYSCALL_64_fastpath+0x23/0xc6 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 ^ Object at ffff8801c6091580, in cache fasync_cache size: 96 [] 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 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 __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 __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 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 [] __vfs_read+0x103/0x670 fs/read_write.c:452 Object at ffff8801c6091580, in cache fasync_cache size: 96 Call Trace: >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 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 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 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 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 Freed: [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 ffff8801c6091680: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] __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 ffff8801c6091680: 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 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 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 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 CPU: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 Call Trace: >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 __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 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 CPU: 1 PID: 30009 Comm: syz-executor0 Tainted: G B 4.9.67-gf26d3c7 #106 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c60915e4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c60915e4 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 Allocated: ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 ffff8801c6091500: 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 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c60915e0 ffffed0038c122bc ffff8801c60915e4 ffff8801a661f9d8 Read of size 4 by task syz-executor0/30009 ^ 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 entry_SYSCALL_64_fastpath+0x23/0xc6 __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 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 Call Trace: ffff8801c6091600: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] 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 [] 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 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] 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 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] 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: [] 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 Call Trace: >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] 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 [] 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 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] 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 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 ffff8801a661f9b0 ffffffff81d906e9 ffff8801d6769000 ffff8801c6091580 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: ffff8801c6091480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] 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 Call Trace: ffff8801c6091500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] 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 [] 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 [] 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 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] 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 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] 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 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 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 Freed: PID = 30001 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] entry_SYSCALL_64_fastpath+0x23/0xc6 ffffffff8153a2cc ffffed0038c122bc ffff8801d6769000 0000000000000000 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: >ffff8801c6091580: 00 00 00 00 00 00 00 00 00 00 00 00 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 ffff8801c6091480: 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 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] 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 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 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ================================================================== Object at ffff8801c6091580, in cache fasync_cache size: 96 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] __vfs_read+0x103/0x670 fs/read_write.c:452 ffff8801c6091480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc 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 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 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537