================================================================== BUG: KASAN: slab-out-of-bounds in list_empty include/linux/list.h:189 [inline] BUG: KASAN: slab-out-of-bounds in sg_remove_request+0xf9/0x110 drivers/scsi/sg.c:2130 Read of size 8 at addr ffff8801d14ec5c0 by task syzkaller397963/3319 CPU: 0 PID: 3319 Comm: syzkaller397963 Not tainted 4.4.111-gc2f631b #20 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 952a9c5aa52bf785 ffff8801d06d7a40 ffffffff81d0513d ffffea0007453b00 ffff8801d14ec5c0 0000000000000000 ffff8801d14ec5c0 ffff8800b3c48238 ffff8801d06d7a78 ffffffff814fd433 ffff8801d14ec5c0 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] print_address_description+0x73/0x260 mm/kasan/report.c:252 [] kasan_report_error mm/kasan/report.c:351 [inline] [] kasan_report+0x285/0x370 mm/kasan/report.c:408 [] __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:429 [] list_empty include/linux/list.h:189 [inline] [] sg_remove_request+0xf9/0x110 drivers/scsi/sg.c:2130 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1848 [] sg_read+0xa21/0x1490 drivers/scsi/sg.c:538 [] __vfs_read+0x103/0x440 fs/read_write.c:432 [] vfs_read+0x123/0x3a0 fs/read_write.c:454 [] SYSC_read fs/read_write.c:569 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:562 [] do_syscall_32_irqs_on arch/x86/entry/common.c:390 [inline] [] do_fast_syscall_32+0x314/0x890 arch/x86/entry/common.c:457 [] sysenter_flags_fixed+0xd/0x17 Allocated by task 0: (stack is not available) Freed by task 0: (stack is not available) The buggy address belongs to the object at ffff8801d14ec580 which belongs to the cache fasync_cache of size 96 The buggy address is located 64 bytes inside of 96-byte region [ffff8801d14ec580, ffff8801d14ec5e0) The buggy address belongs to the page: Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffffff812e27db CPU: 1 PID: 3320 Comm: syzkaller397963 Not tainted 4.4.111-gc2f631b #20 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 a9e667e17918375a ffff8801d061f6d8 ffffffff81d0513d ffffffff83842d80 ffff8801d061f7b0 0000000000000000 ffff8801d061f958 0000000000000001 ffff8801d061f7a0 ffffffff81419a3a 0000000041b58ab3 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] panic+0x1aa/0x388 kernel/panic.c:112 [] __stack_chk_fail+0x22/0x30 kernel/panic.c:506 [] smp_call_function_single+0x34b/0x3b0 kernel/smp.c:308 Shutting down cpus with NMI Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..