[] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801be6bd360 ffffed0037cd7a6c ffff8801be6bd364 ffff8801d067f978 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801be6bd364 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 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 ffff8801be6bd360 ffffed0037cd7a6c ffff8801be6bd364 ffff8801d067f978 ffffffff8153a45c ffffed0037cd7a6c ffff8801d77f5280 0000000000000000 [] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline] [] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124 [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 Memory state around the buggy address: Call Trace: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 PID = 3993 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 ffff8801be6bd280: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc setfl fs/fcntl.c:70 [inline] do_fcntl fs/fcntl.c:267 [inline] SYSC_fcntl fs/fcntl.c:372 [inline] SyS_fcntl+0x658/0xc70 fs/fcntl.c:357 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 ffff8801be6bd200: 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 ffff8801be6bd400: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffffffff8153a45c ffffed0037cd7a6c ffff8801d77f5280 0000000000000000 CPU: 0 PID: 3993 Comm: syz-executor5 Tainted: G B 4.9.70-g9542d2a #5 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801be6bd364 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 __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_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 Read of size 4 by task syz-executor5/3993 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 C_SYSC_fcntl64 fs/compat.c:469 [inline] compat_SyS_fcntl64+0xce/0x4f0 fs/compat.c:403 [] __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 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 setfl fs/fcntl.c:70 [inline] do_fcntl fs/fcntl.c:267 [inline] SYSC_fcntl fs/fcntl.c:372 [inline] SyS_fcntl+0x658/0xc70 fs/fcntl.c:357 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-executor5/3993 ================================================================== ================================================================== sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 Allocated: [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 ffffffff8153a45c ffffed0037cd7a6c ffff8801d77f5280 0000000000000000 [] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline] [] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384 Freed: [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 C_SYSC_fcntl64 fs/compat.c:469 [inline] compat_SyS_fcntl64+0xce/0x4f0 fs/compat.c:403 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 ffff8801be6bd380: 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 ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801be6bd364 [] entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124 ffffffff8153a45c ffffed0037cd7a6c ffff8801d77f5280 0000000000000000 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Object at ffff8801be6bd300, in cache fasync_cache size: 96 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 setfl fs/fcntl.c:70 [inline] do_fcntl fs/fcntl.c:267 [inline] SYSC_fcntl fs/fcntl.c:372 [inline] SyS_fcntl+0x658/0xc70 fs/fcntl.c:357 ffff8801be6bd200: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Memory state around the buggy address: [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline] [] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384 ffff8801be6bd380: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd400: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd380: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== ffff8801be6bd360 ffffed0037cd7a6c ffff8801be6bd364 ffff8801d067f978 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] vfs_read+0x11e/0x380 fs/read_write.c:475 ================================================================== ffff8801be6bd380: 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 ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801be6bd364 [] vfs_read+0x11e/0x380 fs/read_write.c:475 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] 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 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 [] __vfs_read+0x103/0x670 fs/read_write.c:452 Read of size 4 by task syz-executor5/3993 ================================================================== ================================================================== ffff8801be6bd400: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd380: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 >ffff8801be6bd300: 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 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 [] vfs_read+0x11e/0x380 fs/read_write.c:475 ================================================================== ^ [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ^ ffff8801be6bd380: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== ffff8801be6bd400: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd380: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd380: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd380: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc __do_softirq+0x206/0x951 kernel/softirq.c:284 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801be6bd280: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd200: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd200: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801be6bd280: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Memory state around the buggy address: 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 __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 ffff8801be6bd400: 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 [] entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 ffff8801be6bd280: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ ffff8801be6bd400: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124 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 >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ^ [] vfs_read+0x11e/0x380 fs/read_write.c:475 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801be6bd364 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801be6bd280: 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 [] vfs_read+0x11e/0x380 fs/read_write.c:475 >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801be6bd200: 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 ffff8801d067f950 ffffffff81d90a29 ffff8801d77f5280 ffff8801be6bd300 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384 ^ ffff8801be6bd400: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd380: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ ================================================================== ================================================================== ================================================================== ffff8801be6bd380: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd380: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ Memory state around the buggy address: [] 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 >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc Memory state around the buggy address: __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-executor5/3993 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 Object at ffff8801be6bd300, 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 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] 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 ffff8801be6bd200: 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_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384 __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 ffff8801be6bd400: 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 ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801be6bd364 ffff8801be6bd400: 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 ffff8801be6bd400: 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 [] 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 ffff8801be6bd380: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd400: 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 ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801be6bd364 [] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline] [] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ffff8801be6bd400: 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 ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801be6bd364 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 ffff8801be6bd380: 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 ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801be6bd364 Allocated: ffff8801be6bd400: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== Read of size 4 by task syz-executor5/3993 ffff8801be6bd380: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd400: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== ================================================================== ffff8801be6bd360 ffffed0037cd7a6c ffff8801be6bd364 ffff8801d067f978 [] vfs_read+0x11e/0x380 fs/read_write.c:475 ================================================================== ffffffff8153a45c ffffed0037cd7a6c ffff8801d77f5280 0000000000000000 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801be6bd364 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 __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 ffff8801be6bd380: 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 ffff8801be6bd280: 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 >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ================================================================== ffff8801be6bd400: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd400: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ ffff8801be6bd280: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd380: 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 ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801be6bd364 do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384 ffff8801d067f950 ffffffff81d90a29 ffff8801d77f5280 ffff8801be6bd300 Read of size 4 by task syz-executor5/3993 Call Trace: ffff8801be6bd400: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== ================================================================== ffff8801be6bd400: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== ffff8801be6bd400: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd280: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Memory state around the buggy address: [] 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 ffff8801be6bd200: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd360 ffffed0037cd7a6c ffff8801be6bd364 ffff8801d067f978 Read of size 4 by task syz-executor5/3993 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 ffff8801be6bd280: 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 ================================================================== Read of size 4 by task syz-executor5/3993 [] __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 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ================================================================== ffff8801be6bd400: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 ffff8801be6bd400: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd400: 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 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 ffff8801be6bd200: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ^ ffff8801be6bd200: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc CPU: 0 PID: 3993 Comm: syz-executor5 Tainted: G B 4.9.70-g9542d2a #5 [] vfs_read+0x11e/0x380 fs/read_write.c:475 ================================================================== Read of size 4 by task syz-executor5/3993 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 ffffffff8153a45c ffffed0037cd7a6c ffff8801d77f5280 0000000000000000 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 ffff8801be6bd280: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd400: 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 ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801be6bd364 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 [] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline] [] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384 ffff8801d067f950 ffffffff81d90a29 ffff8801d77f5280 ffff8801be6bd300 __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 >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 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 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] vfs_read+0x11e/0x380 fs/read_write.c:475 CPU: 0 PID: 3993 Comm: syz-executor5 Tainted: G B 4.9.70-g9542d2a #5 ffff8801be6bd280: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ [] entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124 ffff8801be6bd360 ffffed0037cd7a6c ffff8801be6bd364 ffff8801d067f978 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124 ffff8801be6bd200: 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 ================================================================== Freed: set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 >ffff8801be6bd300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801be6bd380: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== ================================================================== Read of size 4 by task syz-executor5/3993 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 Call Trace: [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 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 __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 ffff8801d067f950 ffffffff81d90a29 ffff8801d77f5280 ffff8801be6bd300 ================================================================== BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801be6bd364 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801be6bd364 ffff8801be6bd400: 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 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ffff8801be6bd200: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc __do_softirq+0x206/0x951 kernel/softirq.c:284 ^ [] vfs_read+0x11e/0x380 fs/read_write.c:475 ================================================================== ^ ffff8801be6bd280: 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 CPU: 0 PID: 3993 Comm: syz-executor5 Tainted: G B 4.9.70-g9542d2a #5 [] 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 ffff8801be6bd360 ffffed0037cd7a6c ffff8801be6bd364 ffff8801d067f978 ffff8801be6bd280: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801be6bd380: 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 ==================================================================