^ [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 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 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ================================================================== [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 Memory state around the buggy address: 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 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 ================================================================== [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ffff8801a8744780: 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 ================================================================== Read of size 4 by task syz-executor5/9552 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ^ [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ^ Read of size 4 by task syz-executor5/9552 [] do_readv+0xe6/0x250 fs/read_write.c:924 ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 __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 Read of size 4 by task syz-executor5/9552 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 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 Object at ffff8801a8744800, in cache fasync_cache size: 96 [] 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 ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 Memory state around the buggy address: set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 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 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 Memory state around the buggy address: sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 Read of size 4 by task syz-executor5/9552 CPU: 0 PID: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 CPU: 0 PID: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ffff8801a8744780: 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 ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 Read of size 4 by task syz-executor5/9552 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ^ [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] do_readv+0xe6/0x250 fs/read_write.c:924 ================================================================== [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] do_readv+0xe6/0x250 fs/read_write.c:924 ================================================================== [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ffff8801a8744780: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Call Trace: save_stack+0x43/0xd0 mm/kasan/kasan.c:495 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a8744880: 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 Read of size 4 by task syz-executor5/9552 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801a8744880: 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 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 ffff8801a8744780: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff8801a8744780: 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 ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 ffff8801a8744780: 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 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ^ ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 ffff8801a8744880: 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 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 Memory state around the buggy address: fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 Allocated: Read of size 4 by task syz-executor5/9552 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ^ [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 Memory state around the buggy address: 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 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 ^ [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 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 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 ^ ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ffff8801a8744780: 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 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 ================================================================== [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 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 Allocated: Read of size 4 by task syz-executor5/9552 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a8744700: 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 ================================================================== [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 ================================================================== Read of size 4 by task syz-executor5/9552 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Memory state around the buggy address: kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 Memory state around the buggy address: fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 Memory state around the buggy address: kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 [] 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 ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ^ ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 ffff8801a8744780: 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 [] 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 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 Read of size 4 by task syz-executor5/9552 ^ ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 ffff8801a8744780: 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 ffff8801a8744880: 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 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ^ ^ [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a8744780: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 ffff8801a8744700: 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 Read of size 4 by task syz-executor5/9552 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 ^ [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 Allocated: BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ^ [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 Read of size 4 by task syz-executor5/9552 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 __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 ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801a8744700: 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 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 Read of size 4 by task syz-executor5/9552 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 ================================================================== [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc CPU: 0 PID: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ^ [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ^ [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 ^ [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 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 Object at ffff8801a8744800, in cache fasync_cache size: 96 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 ffff8801a8744780: 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 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 Read of size 4 by task syz-executor5/9552 ffff8801a8744880: 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 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 __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: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 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 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ^ [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ^ [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ffff8801a8744780: 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 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 Read of size 4 by task syz-executor5/9552 [] do_readv+0xe6/0x250 fs/read_write.c:924 ================================================================== Memory state around the buggy address: fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ffff8801a8744700: 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 Read of size 4 by task syz-executor5/9552 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ^ [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ffff8801a8744780: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Call Trace: save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 ffff8801a8744700: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 __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 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 Read of size 4 by task syz-executor5/9552 CPU: 0 PID: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 CPU: 0 PID: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 Read of size 4 by task syz-executor5/9552 ^ [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ^ [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ffff8801a8744780: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 ================================================================== [] 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 Object at ffff8801a8744800, in cache fasync_cache size: 96 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ffff8801a8744780: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Read of size 4 by task syz-executor5/9552 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 ffff8801a8744900: 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 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a8744700: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 ffff8801a8744700: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 ffff8801a8744780: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 ffff8801a8744700: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Call Trace: save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 ffff8801a8744780: 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 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 Read of size 4 by task syz-executor5/9552 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 Read of size 4 by task syz-executor5/9552 ^ [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 __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 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 Memory state around the buggy address: kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 PID = 9552 CPU: 0 PID: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ^ Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ^ [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 ffff8801a8744900: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 CPU: 0 PID: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 Read of size 4 by task syz-executor5/9552 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 __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: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 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 Object at ffff8801a8744800, in cache fasync_cache size: 96 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ^ CPU: 0 PID: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 Memory state around the buggy address: fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 Read of size 4 by task syz-executor5/9552 ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 Allocated: Read of size 4 by task syz-executor5/9552 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801a8744900: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] 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: save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 Memory state around the buggy address: sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 Read of size 4 by task syz-executor5/9552 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ^ [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 Object at ffff8801a8744800, in cache fasync_cache size: 96 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 ffff8801a8744700: 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 [] 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 ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ================================================================== [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 ^ ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 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 [] do_readv+0xe6/0x250 fs/read_write.c:924 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 ffff8801a8744780: 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 ffff8801a8744900: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 Object at ffff8801a8744800, in cache fasync_cache size: 96 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 PID = 9552 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 CPU: 0 PID: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 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 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 Object at ffff8801a8744800, in cache fasync_cache size: 96 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 Read of size 4 by task syz-executor5/9552 CPU: 0 PID: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 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 Object at ffff8801a8744800, in cache fasync_cache size: 96 Read of size 4 by task syz-executor5/9552 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a8744780: 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 ================================================================== [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc Call Trace: set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 ffff8801a8744780: 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 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 Read of size 4 by task syz-executor5/9552 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 Memory state around the buggy address: fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 __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 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 ffff8801a8744780: 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 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 Call Trace: save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 ffff8801a8744700: 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 ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 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 Object at ffff8801a8744800, in cache fasync_cache size: 96 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 [] 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 ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 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 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 Memory state around the buggy address: fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 [] 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 ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ^ [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] do_readv+0xe6/0x250 fs/read_write.c:924 ================================================================== [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 Read of size 4 by task syz-executor5/9552 ^ [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801a8744880: 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 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ^ [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ^ [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 Read of size 4 by task syz-executor5/9552 ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 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 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 ================================================================== ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 ffff8801a8744780: 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 ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 ffff8801a8744780: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Call Trace: save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 Read of size 4 by task syz-executor5/9552 ^ [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ffff8801a8744700: 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 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 Read of size 4 by task syz-executor5/9552 ffff8801a8744900: 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 ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 ffff8801a8744780: 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 CPU: 0 PID: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 ffff8801a8744900: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ================================================================== [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ^ [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 ^ [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 ================================================================== [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 Memory state around the buggy address: sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 Read of size 4 by task syz-executor5/9552 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ffff8801a8744700: 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 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 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 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 Read of size 4 by task syz-executor5/9552 ================================================================== ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 ffff8801a8744780: 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 ================================================================== [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] 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 ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 Read of size 4 by task syz-executor5/9552 CPU: 0 PID: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ffff8801a8744780: 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 Read of size 4 by task syz-executor5/9552 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 Call Trace: 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 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ^ [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 CPU: 0 PID: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 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 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 [] 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 ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 ffff8801a8744880: 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 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a8744880: 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 CPU: 0 PID: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a8744700: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801a8744880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 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 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 CPU: 0 PID: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 entry_SYSCALL_64_fastpath+0x23/0xc6 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 ================================================================== Call Trace: save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ^ [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc Call Trace: save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 __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 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 Read of size 4 by task syz-executor5/9552 Read of size 4 by task syz-executor5/9552 [] do_readv+0xe6/0x250 fs/read_write.c:924 ^ [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 ^ [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 Allocated: Read of size 4 by task syz-executor5/9552 [] 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 [] 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 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc PID = 9552 Read of size 4 by task syz-executor5/9552 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801a8744900: 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 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 ffff8801a8744900: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 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 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 Read of size 4 by task syz-executor5/9552 [] do_readv+0xe6/0x250 fs/read_write.c:924 ================================================================== [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ^ [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 __do_softirq+0x206/0x951 kernel/softirq.c:284 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 ffff8801a8744780: 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 Allocated: Read of size 4 by task syz-executor5/9552 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 CPU: 0 PID: 9552 Comm: syz-executor5 Tainted: G B 4.9.68-gfb66dc2 #107 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 ================================================================== [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 >ffff8801a8744800: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 Call Trace: PID = 6089 ================================================================== Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a8744900: 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 [] do_readv+0xe6/0x250 fs/read_write.c:924 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801a8744864 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801a8744864 Memory state around the buggy address: Freed: ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 ffff8801cb1978b0 ffffffff81d90889 ffff8801da35b3c0 ffff8801a8744800 ffff8801a8744780: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801a8744900: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801a8744780: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffffffff8153a44c ffffed00350e890c ffff8801da35b3c0 0000000000000000 ^ [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 Call Trace: save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ffff8801a8744860 ffffed00350e890c ffff8801a8744864 ffff8801cb1978d8 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 Object at ffff8801a8744800, in cache fasync_cache size: 96