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 ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Read of size 4 by task syz-executor4/17529 [] __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 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] entry_SYSCALL_64_fastpath+0x23/0xc6 ffff8801d75d2f80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 Allocated: 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 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 Read of size 4 by task syz-executor4/17529 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== ================================================================== ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 [] entry_SYSCALL_64_fastpath+0x23/0xc6 ffff8801d75d2f80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2e00: 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 __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_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ ffff8801d75d2f80: 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 ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 PID = 17529 ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 Memory state around the buggy address: Memory state around the buggy address: [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== Read of size 4 by task syz-executor4/17529 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 ffff8801d75d2f00: 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 [] __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-executor4/17529 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 [] 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 >ffff8801d75d2e80: 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 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] entry_SYSCALL_64_fastpath+0x23/0xc6 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 Read of size 4 by task syz-executor4/17529 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 ================================================================== Read of size 4 by task syz-executor4/17529 ================================================================== BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ^ ^ >ffff8801d75d2e80: 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 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 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 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 Freed: 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 [] __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 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 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ================================================================== Read of size 4 by task syz-executor4/17529 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ^ ^ save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 Read of size 4 by task syz-executor4/17529 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ================================================================== Read of size 4 by task syz-executor4/17529 [] 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 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 Read of size 4 by task syz-executor4/17529 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ^ ^ BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 Freed: ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 ffff8801d75d2f00: 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 [] entry_SYSCALL_64_fastpath+0x23/0xc6 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 Call Trace: ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] __vfs_read+0x103/0x670 fs/read_write.c:452 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 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 [] 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 ffff8801d75d2d80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Memory state around the buggy address: Read of size 4 by task syz-executor4/17529 Read of size 4 by task syz-executor4/17529 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 Call Trace: ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 [] 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 ffff8801d75d2f00: 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 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== Read of size 4 by task syz-executor4/17529 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 ffff8801d75d2ee0 ffffed003aeba5dc ffff8801d75d2ee4 ffff8801d8c279d8 [] __vfs_read+0x103/0x670 fs/read_write.c:452 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 __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_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc __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 __do_softirq+0x206/0x951 kernel/softirq.c:284 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 ffff8801d75d2ee0 ffffed003aeba5dc ffff8801d75d2ee4 ffff8801d8c279d8 Read of size 4 by task syz-executor4/17529 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 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 ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] vfs_read+0x11e/0x380 fs/read_write.c:475 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 Memory state around the buggy address: kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 Memory state around the buggy address: [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2f80: 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 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 entry_SYSCALL_64_fastpath+0x23/0xc6 [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] __vfs_read+0x103/0x670 fs/read_write.c:452 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 Freed: Freed: ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 CPU: 0 PID: 17529 Comm: syz-executor4 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 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 Read of size 4 by task syz-executor4/17529 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 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ================================================================== Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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 [] entry_SYSCALL_64_fastpath+0x23/0xc6 ffff8801d75d2d80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ ================================================================== CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 __do_softirq+0x206/0x951 kernel/softirq.c:284 Read of size 4 by task syz-executor4/17529 ================================================================== kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 Read of size 4 by task syz-executor4/17529 ffff8801d75d2d80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801d75d2d80: 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 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801d75d2e00: 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 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 __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 [] entry_SYSCALL_64_fastpath+0x23/0xc6 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801d75d2f00: 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 ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 ffff8801d75d2f80: 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 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc __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 [] vfs_read+0x11e/0x380 fs/read_write.c:475 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 ffff8801d75d2ee0 ffffed003aeba5dc ffff8801d75d2ee4 ffff8801d8c279d8 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 __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 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] entry_SYSCALL_64_fastpath+0x23/0xc6 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 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 [] 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 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] vfs_read+0x11e/0x380 fs/read_write.c:475 CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 Read of size 4 by task syz-executor4/17529 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 PID = 17529 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2f80: 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 ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 [] entry_SYSCALL_64_fastpath+0x23/0xc6 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 ffff8801d75d2d80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Freed: 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 ================================================================== ffff8801d75d2d80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc __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 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 __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 [] __vfs_read+0x103/0x670 fs/read_write.c:452 __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 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] __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 [] 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 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 PID = 17 ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== Read of size 4 by task syz-executor4/17529 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 [] 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 Call Trace: ffff8801d75d2ee0 ffffed003aeba5dc ffff8801d75d2ee4 ffff8801d8c279d8 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] 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 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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 ffff8801d75d2f00: 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 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] __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 ffff8801d75d2e00: 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_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 [] 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 Freed: 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 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Call Trace: [] 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 PID = 17529 Allocated: [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 ffff8801d75d2f00: 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_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 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 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] vfs_read+0x11e/0x380 fs/read_write.c:475 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 [] vfs_read+0x11e/0x380 fs/read_write.c:475 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 Call Trace: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ ================================================================== Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 __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 PID = 17529 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] __vfs_read+0x103/0x670 fs/read_write.c:452 ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 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 [] __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: Call Trace: ================================================================== >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ================================================================== BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] entry_SYSCALL_64_fastpath+0x23/0xc6 __do_softirq+0x206/0x951 kernel/softirq.c:284 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 ^ 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 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 Freed: Freed: save_stack+0x43/0xd0 mm/kasan/kasan.c:495 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 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ ffff8801d75d2f80: 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 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 [] 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 [] entry_SYSCALL_64_fastpath+0x23/0xc6 __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 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 ================================================================== BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 [] 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 ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 __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 ffff8801d75d2e80, in cache fasync_cache size: 96 Read of size 4 by task syz-executor4/17529 entry_SYSCALL_64_fastpath+0x23/0xc6 PID = 17 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 ^ ffff8801d75d2f80: 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 [] 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 [] entry_SYSCALL_64_fastpath+0x23/0xc6 ffff8801d75d2d80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2f00: 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 ffff8801d75d2f80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d75d2ee0 ffffed003aeba5dc ffff8801d75d2ee4 ffff8801d8c279d8 __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 [] entry_SYSCALL_64_fastpath+0x23/0xc6 __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 ffff8801d75d2e80, in cache fasync_cache size: 96 ================================================================== Read of size 4 by task syz-executor4/17529 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ^ ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Read of size 4 by task syz-executor4/17529 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 [] 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 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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 Read of size 4 by task syz-executor4/17529 [] __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 [] 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 ================================================================== Read of size 4 by task syz-executor4/17529 [] 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+0x43/0xd0 mm/kasan/kasan.c:495 ffff8801d75d2d80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 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 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 __do_softirq+0x206/0x951 kernel/softirq.c:284 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 PID = 17529 Allocated: ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 [] entry_SYSCALL_64_fastpath+0x23/0xc6 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 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 ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 __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 ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 Freed: sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 ================================================================== ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Freed: kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801d75d2e00: 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 ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] 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 ================================================================== ================================================================== CPU: 0 PID: 17529 Comm: syz-executor4 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 ================================================================== Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 Read of size 4 by task syz-executor4/17529 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Object at ffff8801d75d2e80, in cache fasync_cache size: 96 [] 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 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 ffff8801d75d2ee0 ffffed003aeba5dc ffff8801d75d2ee4 ffff8801d8c279d8 PID = 17529 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 Read of size 4 by task syz-executor4/17529 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 __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_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Freed: ================================================================== ffff8801d75d2d80: 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 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ffff8801d75d2f00: 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 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d75d2f80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2f80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2f80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2f80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Read of size 4 by task syz-executor4/17529 [] __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 [] 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 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 PID = 17529 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 ================================================================== save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] __vfs_read+0x103/0x670 fs/read_write.c:452 ================================================================== ^ [] 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 ================================================================== CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2f80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ ffff8801d75d2f80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== Read of size 4 by task syz-executor4/17529 [] 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 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 PID = 17529 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== ffff8801d75d2f80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Read of size 4 by task syz-executor4/17529 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801d75d2f80: 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 ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ================================================================== Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 __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 ffff8801d75d2e80, in cache fasync_cache size: 96 ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] 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 ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc __do_softirq+0x206/0x951 kernel/softirq.c:284 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 __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 Allocated: Object at ffff8801d75d2e80, in cache fasync_cache size: 96 ================================================================== ffff8801d75d2f00: 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 ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 Allocated: [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 Read of size 4 by task syz-executor4/17529 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] 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 of size 4 by task syz-executor4/17529 ================================================================== Memory state around the buggy address: ffff8801d75d2f00: 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 Call Trace: __do_softirq+0x206/0x951 kernel/softirq.c:284 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] entry_SYSCALL_64_fastpath+0x23/0xc6 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 __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 of size 4 by task syz-executor4/17529 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 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 ================================================================== CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 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 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 Allocated: [] 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 of size 4 by task syz-executor4/17529 [] __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 ffff8801d75d2e80, in cache fasync_cache size: 96 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ================================================================== CPU: 0 PID: 17529 Comm: syz-executor4 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 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc entry_SYSCALL_64_fastpath+0x23/0xc6 Read of size 4 by task syz-executor4/17529 [] __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 [] 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 PID = 17 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] entry_SYSCALL_64_fastpath+0x23/0xc6 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 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 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 ================================================================== Read of size 4 by task syz-executor4/17529 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ^ ffff8801d75d2f80: 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 ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] 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 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Memory state around the buggy address: [] 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 PID = 17529 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 ^ ^ CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 [] entry_SYSCALL_64_fastpath+0x23/0xc6 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] 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 ================================================================== Read of size 4 by task syz-executor4/17529 [] 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 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] entry_SYSCALL_64_fastpath+0x23/0xc6 __do_softirq+0x206/0x951 kernel/softirq.c:284 Allocated: ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 Freed: SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 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 ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 __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 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 [] __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 PID = 17529 Object at ffff8801d75d2e80, 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 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 Read of size 4 by task syz-executor4/17529 [] 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 [] entry_SYSCALL_64_fastpath+0x23/0xc6 ffff8801d75d2d80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2d80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2f80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Read of size 4 by task syz-executor4/17529 [] 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 ffff8801d75d2ee0 ffffed003aeba5dc ffff8801d75d2ee4 ffff8801d8c279d8 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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 Read of size 4 by task syz-executor4/17529 [] 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_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 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] 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 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 Read of size 4 by task syz-executor4/17529 [] 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 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 ================================================================== Read of size 4 by task syz-executor4/17529 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801d75d2f00: 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 ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 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 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ^ Read of size 4 by task syz-executor4/17529 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ================================================================== BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] 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 ================================================================== set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 ================================================================== ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== Read of size 4 by task syz-executor4/17529 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc PID = 17529 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 PID = 17529 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801d75d2d80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801d75d2f80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Read of size 4 by task syz-executor4/17529 [] 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 PID = 17529 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] __vfs_read+0x103/0x670 fs/read_write.c:452 CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 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 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ================================================================== ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 [] __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 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ^ ^ ================================================================== Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d75d2d80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2f80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc CPU: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 [] __vfs_read+0x103/0x670 fs/read_write.c:452 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 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 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 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_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ^ ffff8801d75d2f80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Freed: [] 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: 0 PID: 17529 Comm: syz-executor4 Tainted: G B 4.9.67-gf26d3c7 #106 ffff8801d75d2f00: 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 ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 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 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 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 __do_softirq+0x206/0x951 kernel/softirq.c:284 Allocated: fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 [] __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 [] vfs_read+0x11e/0x380 fs/read_write.c:475 ffff8801d75d2ee0 ffffed003aeba5dc ffff8801d75d2ee4 ffff8801d8c279d8 ffff8801d75d2f00: 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 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 [] __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 ffff8801d75d2e80, in cache fasync_cache size: 96 ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ================================================================== ffff8801d75d2ee0 ffffed003aeba5dc ffff8801d75d2ee4 ffff8801d8c279d8 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 Read of size 4 by task syz-executor4/17529 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ^ ffff8801d75d2f80: 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 ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 PID = 17529 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ffff8801d75d2ee0 ffffed003aeba5dc ffff8801d75d2ee4 ffff8801d8c279d8 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d75d2f00: 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 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Memory state around the buggy address: entry_SYSCALL_64_fastpath+0x23/0xc6 PID = 17 ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 >ffff8801d75d2e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ================================================================== BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 [] __vfs_read+0x103/0x670 fs/read_write.c:452 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 PID = 17 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801d75d2ee4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801d75d2ee4 ffffffff8153a2cc ffffed003aeba5dc ffff8801d77fd500 0000000000000000 ffff8801d75d2e00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== 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 Read of size 4 by task syz-executor4/17529 [] 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 [] entry_SYSCALL_64_fastpath+0x23/0xc6 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] entry_SYSCALL_64_fastpath+0x23/0xc6 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 Object at ffff8801d75d2e80, in cache fasync_cache size: 96 ================================================================== ================================================================== ================================================================== ================================================================== ffff8801d75d2f80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== Read of size 4 by task syz-executor4/17529 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 Call Trace: ffff8801d8c279b0 ffffffff81d906e9 ffff8801d77fd500 ffff8801d75d2e80 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122