BUG: KASAN: wild-memory-access on address ffe708746e749000 Read of size 165 by task syz-executor6/9164 CPU: 0 PID: 9164 Comm: syz-executor6 Not tainted 4.9.54-g9add7c4 #63 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c69379e8 ffffffff81d93659 ffe708746e749000 00000000000000a5 0000000000000000 ffff8801a7c4b240 ffe708746e749000 ffff8801c6937a70 ffffffff8153d48f 0000000000000000 0000000000000001 ffffffff826651bb Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] kasan_report_error mm/kasan/report.c:284 [inline] [] kasan_report.part.1+0x40f/0x500 mm/kasan/report.c:309 [] kasan_report+0x20/0x30 mm/kasan/report.c:296 [] check_memory_region_inline mm/kasan/kasan.c:308 [inline] [] check_memory_region+0x137/0x190 mm/kasan/kasan.c:315 [] kasan_check_read+0x11/0x20 mm/kasan/kasan.c:320 [] __copy_to_user arch/x86/include/asm/uaccess_64.h:182 [inline] [] sg_read_oxfer drivers/scsi/sg.c:1978 [inline] [] sg_read+0x124b/0x1400 drivers/scsi/sg.c:520 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 [] do_readv+0xe6/0x250 fs/read_write.c:924 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 [] entry_SYSCALL_64_fastpath+0x23/0xc6 ================================================================== IPVS: Creating netns size=2536 id=24 sg_write: data in/out 93/34 bytes for SCSI command 0xfc-- guessing data in; program syz-executor6 not setting count and/or reply_len properly IPVS: Creating netns size=2536 id=25 device syz4 left promiscuous mode sock: process `syz-executor3' is using obsolete getsockopt SO_BSDCOMPAT device gre0 entered promiscuous mode device syz1 left promiscuous mode program syz-executor4 is using a deprecated SCSI ioctl, please convert it to SG_IO sd 0:0:1:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x20 ascq=0x0 program syz-executor4 is using a deprecated SCSI ioctl, please convert it to SG_IO sd 0:0:1:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x20 ascq=0x0 IPv6: NLM_F_CREATE should be specified when creating new route program syz-executor4 is using a deprecated SCSI ioctl, please convert it to SG_IO sd 0:0:1:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x20 ascq=0x0 program syz-executor4 is using a deprecated SCSI ioctl, please convert it to SG_IO sd 0:0:1:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x20 ascq=0x0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=9666 comm=syz-executor3 sg_write: data in/out 476/6 bytes for SCSI command 0x0-- guessing data in; program syz-executor2 not setting count and/or reply_len properly SELinux: unrecognized netlink message: protocol=0 nlmsg_type=770 sclass=netlink_route_socket pig=9897 comm=syz-executor0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=770 sclass=netlink_route_socket pig=9897 comm=syz-executor0 keychord: keycode 46132 out of range binder: 9982:9983 ioctl 5424 20603ffc returned -22 binder: 9982:9986 ioctl 5424 20603ffc returned -22 device gre0 entered promiscuous mode IPVS: Creating netns size=2536 id=26 IPVS: Creating netns size=2536 id=27 binder: 10100:10104 ioctl c0106401 20caa000 returned -22 binder: 10100:10104 ioctl c0106401 20caa000 returned -22 pktgen: kernel_thread() failed for cpu 0 pktgen: Cannot create thread for cpu 0 (-4) pktgen: kernel_thread() failed for cpu 1 pktgen: Cannot create thread for cpu 1 (-4) pktgen: Initialization failed for all threads pktgen: kernel_thread() failed for cpu 0 pktgen: Cannot create thread for cpu 0 (-4) pktgen: kernel_thread() failed for cpu 1 pktgen: Cannot create thread for cpu 1 (-4) pktgen: Initialization failed for all threads device gre0 entered promiscuous mode 9pnet_virtio: no channels available for device ./file0 9pnet_virtio: no channels available for device ./file0