netlink: 5 bytes leftover after parsing attributes in process `syz-executor7'. IPv6: NLM_F_REPLACE set, but no existing node found! ================================================================== BUG: KASAN: wild-memory-access on address ffe708746efc9000 Read of size 28 by task syz-executor4/11390 CPU: 0 PID: 11390 Comm: syz-executor4 Not tainted 4.9.52-g9b2b081 #55 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801cd7779e8 ffffffff81d93149 ffe708746efc9000 000000000000001c 0000000000000000 ffff8801c8d82180 ffe708746efc9000 ffff8801cd777a70 ffffffff8153d08f 0000000000000000 0000000000000001 ffffffff826648db 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 ================================================================== device gre0 entered promiscuous mode netlink: 6 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 6 bytes leftover after parsing attributes in process `syz-executor4'. binder: 11573:11577 ioctl 40605346 20000fa4 returned -22 netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'. binder: 11582:11584 ioctl c00c642e 2057b000 returned -22 binder: 11582:11584 ioctl 4c00 6 returned -22 binder: 11582:11584 ioctl c00c642e 2057b000 returned -22 binder: 11582:11589 ioctl 4c00 18 returned -22 netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'. binder: 11573:11601 ioctl 40605346 20000fa4 returned -22 IPVS: Creating netns size=2536 id=25 IPVS: Creating netns size=2536 id=26 netlink: 9 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 9 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 13 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 13 bytes leftover after parsing attributes in process `syz-executor3'. TCP: request_sock_TCP: Possible SYN flooding on port 20010. Sending cookies. Check SNMP counters. blk_update_request: I/O error, dev loop0, sector 0 blk_update_request: I/O error, dev loop0, sector 0 TCP: request_sock_TCP: Possible SYN flooding on port 20010. Sending cookies. Check SNMP counters. keychord: using input dev AT Translated Set 2 keyboard for fevent blk_update_request: I/O error, dev loop0, sector 0 keychord: invalid keycode count 0 keychord: Insufficient bytes present for keycount 18 blk_update_request: I/O error, dev loop0, sector 0 keychord: using input dev AT Translated Set 2 keyboard for fevent keychord: invalid keycode count 0 device gre0 entered promiscuous mode sd 0:0:1:0: [sg0] tag#931 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK sd 0:0:1:0: [sg0] tag#931 CDB: opcode=0xff (vendor) sd 0:0:1:0: [sg0] tag#931 CDB[00]: ff ff ff ff 00 00 00 00 00 00 00 00 2c 01 cf 59 sd 0:0:1:0: [sg0] tag#931 CDB[10]: 00 00 00 00 98 59 0b 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#931 CDB[20]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#931 CDB[30]: 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#931 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK binder: 12160:12189 ioctl 2403 7fff returned -22 sd 0:0:1:0: [sg0] tag#931 CDB: opcode=0xff (vendor) sd 0:0:1:0: [sg0] tag#931 CDB[00]: ff ff ff ff 00 00 00 00 00 00 00 00 2c 01 cf 59 sd 0:0:1:0: [sg0] tag#931 CDB[10]: 00 00 00 00 98 59 0b 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#931 CDB[20]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#931 CDB[30]: 00 00 00 00 00 00 00 00 00 00 00 00 binder: 12160:12196 ioctl 2403 7fff returned -22 selinux_nlmsg_perm: 7 callbacks suppressed SELinux: unrecognized netlink message: protocol=4 nlmsg_type=24 sclass=netlink_tcpdiag_socket pig=12209 comm=syz-executor4 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=24 sclass=netlink_tcpdiag_socket pig=12209 comm=syz-executor4 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=31687 sclass=netlink_tcpdiag_socket pig=12269 comm=syz-executor0 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=31687 sclass=netlink_tcpdiag_socket pig=12269 comm=syz-executor0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=12296 comm=syz-executor2 device lo entered promiscuous mode 9pnet_virtio: no channels available for device ./file0 IPVS: Creating netns size=2536 id=27 nla_parse: 18 callbacks suppressed netlink: 1 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor3'. 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 netlink: 6 bytes leftover after parsing attributes in process `syz-executor7'. device gre0 entered promiscuous mode netlink: 6 bytes leftover after parsing attributes in process `syz-executor7'. 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 IPVS: Creating netns size=2536 id=28 pktgen: kernel_thread() failed for cpu 1 pktgen: Cannot create thread for cpu 1 (-4) IPVS: Creating netns size=2536 id=29 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=12842 comm=syz-executor6 binder: 12886:12888 ioctl 4b3b 81 returned -22 binder: 12886:12892 ioctl 4b3b 81 returned -22 device syz6 entered promiscuous mode device syz6 left promiscuous mode device syz6 entered promiscuous mode 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 binder: 12976:12989 ioctl 4b44 20001ff8 returned -22 binder: 12976:12989 ioctl c08c5336 20fe4000 returned -22 device lo entered promiscuous mode binder: 12976:13014 ioctl 4b44 20001ff8 returned -22 binder: 12976:13014 ioctl c08c5336 20fe4000 returned -22 device syz5 entered promiscuous mode netlink: 1 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor5'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=13338 comm=syz-executor5 binder: 13389:13391 ioctl c0186419 20d1cfe8 returned -22 program syz-executor0 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 binder: 13389:13469 ioctl c0186419 20d1cfe8 returned -22 program syz-executor0 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=6 nlmsg_type=770 sclass=netlink_xfrm_socket pig=13515 comm=syz-executor6 binder: 13636:13640 ioctl 40505331 20001000 returned -22 device gre0 entered promiscuous mode tc_ctl_action: received NO action attribs tc_ctl_action: received NO action attribs device gre0 entered promiscuous mode sg_write: data in/out 65500/34 bytes for SCSI command 0xfc-- guessing data in; program syz-executor5 not setting count and/or reply_len properly device gre0 entered promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=13992 comm=syz-executor1