ffff8801d550f8b0 ffffffff81d906e9 ffff8801d7bef140 ffff8801a4ebbd80 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 PID = 0 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a4ebbde4 Allocated: Read of size 4 by task syz-executor5/11904 Allocated: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Read of size 4 by task syz-executor5/11904 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a4ebbde4 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 [] __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_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 ffff8801a4ebbd00: 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 CPU: 1 PID: 11904 Comm: syz-executor5 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 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Allocated: Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Call Trace: [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 ffffffff8153a2cc ffffed00349d77bc ffff8801d7bef140 0000000000000000 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 Allocated: [] do_readv+0xe6/0x250 fs/read_write.c:924 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 Allocated: ffff8801a4ebbde0 ffffed00349d77bc ffff8801a4ebbde4 ffff8801d550f8d8 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 ffff8801d550f8b0 ffffffff81d906e9 ffff8801d7bef140 ffff8801a4ebbd80 [] entry_SYSCALL_64_fastpath+0x23/0xc6 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 ================================================================== [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 Call Trace: save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 [] __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_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 Call Trace: save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 ffff8801a4ebbd00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801a4ebbde0 ffffed00349d77bc ffff8801a4ebbde4 ffff8801d550f8d8 [] 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 [] __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_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 PID = 11904 Freed: [] entry_SYSCALL_64_fastpath+0x23/0xc6 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a4ebbde4 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 Memory state around the buggy address: 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 ffffffff8153a2cc ffffed00349d77bc ffff8801d7bef140 0000000000000000 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ================================================================== ffff8801d550f8b0 ffffffff81d906e9 ffff8801d7bef140 ffff8801a4ebbd80 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a4ebbde4 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 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 ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a4ebbde4 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 [] 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 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a4ebbde4 [] 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 PID = 11904 ffff8801a4ebbd00: 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 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Allocated: [] do_readv+0xe6/0x250 fs/read_write.c:924 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 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 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 entry_SYSCALL_64_fastpath+0x23/0xc6 ffff8801a4ebbd00: 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 ffff8801a4ebbde0 ffffed00349d77bc ffff8801a4ebbde4 ffff8801d550f8d8 [] entry_SYSCALL_64_fastpath+0x23/0xc6 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 ffff8801a4ebbd00: 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 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] __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 ffff8801a4ebbd80, in cache fasync_cache size: 96 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Allocated: ffffffff8153a2cc ffffed00349d77bc ffff8801d7bef140 0000000000000000 Allocated: Read of size 4 by task syz-executor5/11904 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Read of size 4 by task syz-executor5/11904 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801a4ebbde0 ffffed00349d77bc ffff8801a4ebbde4 ffff8801d550f8d8 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] entry_SYSCALL_64_fastpath+0x23/0xc6 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 Call Trace: [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 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 ================================================================== [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffffffff8153a2cc ffffed00349d77bc ffff8801d7bef140 0000000000000000 [] 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 Allocated: [] do_readv+0xe6/0x250 fs/read_write.c:924 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 Read of size 4 by task syz-executor5/11904 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 Read of size 4 by task syz-executor5/11904 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] 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 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Object at ffff8801a4ebbd80, 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 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 ================================================================== [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ffff8801a4ebbe80: fc fc fc fc fc fc fc fc fc fc fc fc 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 [] 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 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a4ebbde4 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 Allocated: [] vfs_readv+0x84/0xc0 fs/read_write.c:898 Allocated: ffffffff8153a2cc ffffed00349d77bc ffff8801d7bef140 0000000000000000 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 Read of size 4 by task syz-executor5/11904 ffff8801d550f8b0 ffffffff81d906e9 ffff8801d7bef140 ffff8801a4ebbd80 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 PID = 11904 Freed: Allocated: Freed: kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 Read of size 4 by task syz-executor5/11904 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ================================================================== [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a4ebbde4 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 Call Trace: [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 Call Trace: [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 Allocated: [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 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 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 Read of size 4 by task syz-executor5/11904 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 Memory state around the buggy address: ffff8801a4ebbde0 ffffed00349d77bc ffff8801a4ebbde4 ffff8801d550f8d8 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 Read of size 4 by task syz-executor5/11904 [] 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-executor5/11904 ffff8801a4ebbde0 ffffed00349d77bc ffff8801a4ebbde4 ffff8801d550f8d8 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 Read of size 4 by task syz-executor5/11904 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 Read of size 4 by task syz-executor5/11904 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 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 Allocated: [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 [] do_readv+0xe6/0x250 fs/read_write.c:924 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ================================================================== [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a4ebbde4 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Allocated: ffffffff8153a2cc ffffed00349d77bc ffff8801d7bef140 0000000000000000 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 [] __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_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] entry_SYSCALL_64_fastpath+0x23/0xc6 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ffff8801a4ebbe80: fc fc fc fc fc fc fc fc fc fc fc fc 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 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 Read of size 4 by task syz-executor5/11904 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 Read of size 4 by task syz-executor5/11904 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801a4ebbde0 ffffed00349d77bc ffff8801a4ebbde4 ffff8801d550f8d8 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 ^ 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 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Read of size 4 by task syz-executor5/11904 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801a4ebbde0 ffffed00349d77bc ffff8801a4ebbde4 ffff8801d550f8d8 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Freed: BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a4ebbde4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a4ebbde4 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 CPU: 1 PID: 11904 Comm: syz-executor5 Tainted: G B 4.9.67-gf26d3c7 #106 ffff8801a4ebbd00: 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 ffff8801a4ebbd00: 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 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 Freed: Read of size 4 by task syz-executor5/11904 [] 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 ffff8801d550f8b0 ffffffff81d906e9 ffff8801d7bef140 ffff8801a4ebbd80 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 ffff8801a4ebbc80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Call Trace: [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 PID = 11904 ^ entry_SYSCALL_64_fastpath+0x23/0xc6 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 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 Allocated: [] vfs_readv+0x84/0xc0 fs/read_write.c:898 Read of size 4 by task syz-executor5/11904 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] entry_SYSCALL_64_fastpath+0x23/0xc6 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 Read of size 4 by task syz-executor5/11904 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 CPU: 1 PID: 11904 Comm: syz-executor5 Tainted: G B 4.9.67-gf26d3c7 #106 Read of size 4 by task syz-executor5/11904 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 ffffffff8153a2cc ffffed00349d77bc ffff8801d7bef140 0000000000000000 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] 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 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801d550f8b0 ffffffff81d906e9 ffff8801d7bef140 ffff8801a4ebbd80 Allocated: [] do_readv+0xe6/0x250 fs/read_write.c:924 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 ffffffff8153a2cc ffffed00349d77bc ffff8801d7bef140 0000000000000000 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 Allocated: ffffffff8153a2cc ffffed00349d77bc ffff8801d7bef140 0000000000000000 Allocated: [] do_readv+0xe6/0x250 fs/read_write.c:924 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 Allocated: ffff8801a4ebbde0 ffffed00349d77bc ffff8801a4ebbde4 ffff8801d550f8d8 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Allocated: 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 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] __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 ffffffff8153a2cc ffffed00349d77bc ffff8801d7bef140 0000000000000000 [] 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 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 ffffffff8153a2cc ffffed00349d77bc ffff8801d7bef140 0000000000000000 [] 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 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ffff8801d550f8b0 ffffffff81d906e9 ffff8801d7bef140 ffff8801a4ebbd80 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 ffff8801a4ebbc80: 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 ffff8801a4ebbd80, in cache fasync_cache size: 96 [] __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 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 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 CPU: 1 PID: 11904 Comm: syz-executor5 Tainted: G B 4.9.67-gf26d3c7 #106 ================================================================== [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 Read of size 4 by task syz-executor5/11904 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ffff8801a4ebbd00: 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 Allocated: [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801a4ebbde0 ffffed00349d77bc ffff8801a4ebbde4 ffff8801d550f8d8 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ================================================================== [] 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-executor5/11904 Read of size 4 by task syz-executor5/11904 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 Object at ffff8801a4ebbd80, in cache fasync_cache size: 96 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 ffff8801a4ebbd00: 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 [