sg_write: data in/out 34319/34 bytes for SCSI command 0xfc-- guessing data in; program syz-executor4 not setting count and/or reply_len properly ================================================================== BUG: KASAN: wild-memory-access on address ffe708746ee53000 Read of size 28 by task syz-executor4/5304 CPU: 1 PID: 5304 Comm: syz-executor4 Not tainted 4.9.52-gc30c69c #54 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d12679e8 ffffffff81d93149 ffe708746ee53000 000000000000001c 0000000000000000 ffff8801cce4d840 keychord: using input dev AT Translated Set 2 keyboard for fevent ffe708746ee53000 ffff8801d1267a70 Call Trace: [<ffffffff81d93149>] __dump_stack lib/dump_stack.c:15 [inline] [<ffffffff81d93149>] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [<ffffffff8153d08f>] kasan_report_error mm/kasan/report.c:284 [inline] [<ffffffff8153d08f>] kasan_report.part.1+0x40f/0x500 mm/kasan/report.c:309 [<ffffffff8153d460>] kasan_report+0x20/0x30 mm/kasan/report.c:296 [<ffffffff8153bda7>] check_memory_region_inline mm/kasan/kasan.c:308 [inline] [<ffffffff8153bda7>] check_memory_region+0x137/0x190 mm/kasan/kasan.c:315 [<ffffffff8153be11>] kasan_check_read+0x11/0x20 mm/kasan/kasan.c:320 [<ffffffff826648db>] __copy_to_user arch/x86/include/asm/uaccess_64.h:182 [inline] [<ffffffff826648db>] sg_read_oxfer drivers/scsi/sg.c:1978 [inline] [<ffffffff826648db>] sg_read+0x124b/0x1400 drivers/scsi/sg.c:520 [<ffffffff8156b741>] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 [<ffffffff8156f510>] do_loop_readv_writev fs/read_write.c:880 [inline] [<ffffffff8156f510>] do_readv_writev+0x520/0x750 fs/read_write.c:874 [<ffffffff8156f7c4>] vfs_readv+0x84/0xc0 fs/read_write.c:898 [<ffffffff8156f8e6>] do_readv+0xe6/0x250 fs/read_write.c:924 [<ffffffff81572ca7>] SYSC_readv fs/read_write.c:1011 [inline] [<ffffffff81572ca7>] SyS_readv+0x27/0x30 fs/read_write.c:1008 [<ffffffff838ac5c5>] entry_SYSCALL_64_fastpath+0x23/0xc6 ================================================================== FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 5311 Comm: syz-executor1 Tainted: G B 4.9.52-gc30c69c #54 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c8eef9a0 ffffffff81d93149 ffff8801c8eefc80 0000000000000000 ffff8801aa492410 ffff8801c8eefb70 ffff8801aa492300 ffff8801c8eefb98 ffffffff81660dc8 ffff8801c8eefaf0 ffff8801c8eefbb8 00000001c6a4d067 Call Trace: [<ffffffff81d93149>] __dump_stack lib/dump_stack.c:15 [inline] [<ffffffff81d93149>] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [<ffffffff81660dc8>] handle_userfault+0xa48/0x1300 fs/userfaultfd.c:323 [<ffffffff814cfd71>] do_anonymous_page mm/memory.c:2747 [inline] [<ffffffff814cfd71>] handle_pte_fault mm/memory.c:3488 [inline] [<ffffffff814cfd71>] __handle_mm_fault mm/memory.c:3577 [inline] [<ffffffff814cfd71>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [<ffffffff810e020b>] __do_page_fault+0x4eb/0xbd0 arch/x86/mm/fault.c:1397 [<ffffffff810e0917>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [<ffffffff838ad798>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [<ffffffff838ac5c5>] entry_SYSCALL_64_fastpath+0x23/0xc6 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 5305 Comm: syz-executor1 Tainted: G B 4.9.52-gc30c69c #54 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d126f930 ffffffff81d93149 ffff8801d126fc10 0000000000000000 ffff8801aa492410 ffff8801d126fb00 ffff8801aa492300 ffff8801d126fb28 ffffffff81660dc8 ffff8801d126fa80 ffff8801d126f9a0 00000001c6a4d067 Call Trace: [<ffffffff81d93149>] __dump_stack lib/dump_stack.c:15 [inline] [<ffffffff81d93149>] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [<ffffffff81660dc8>] handle_userfault+0xa48/0x1300 fs/userfaultfd.c:323 [<ffffffff814cfd71>] do_anonymous_page mm/memory.c:2747 [inline] [<ffffffff814cfd71>] handle_pte_fault mm/memory.c:3488 [inline] [<ffffffff814cfd71>] __handle_mm_fault mm/memory.c:3577 [inline] [<ffffffff814cfd71>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [<ffffffff810e020b>] __do_page_fault+0x4eb/0xbd0 arch/x86/mm/fault.c:1397 [<ffffffff810e0917>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [<ffffffff838ad798>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [<ffffffff838ac5c5>] entry_SYSCALL_64_fastpath+0x23/0xc6 keychord: invalid keycode count 0 keychord: using input dev AT Translated Set 2 keyboard for fevent keychord: invalid keycode count 0 netlink: 1 bytes leftover after parsing attributes in process `syz-executor6'. binder_alloc: binder_alloc_mmap_handler: 5398 20000000-20400000 already mapped failed -16 netlink: 1 bytes leftover after parsing attributes in process `syz-executor6'. device gre0 entered promiscuous mode SELinux: unrecognized netlink message: protocol=9 nlmsg_type=20 sclass=netlink_audit_socket pig=5497 comm=syz-executor6 SELinux: unrecognized netlink message: protocol=9 nlmsg_type=20 sclass=netlink_audit_socket pig=5500 comm=syz-executor6 IPVS: Creating netns size=2536 id=12 IPVS: Creating netns size=2536 id=13 netlink: 4 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 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 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: 2 bytes leftover after parsing attributes in process `syz-executor5'. binder: 5796:5798 ioctl 4b6a 20609000 returned -22 binder: 5796:5798 ioctl 4b6a 20609000 returned -22 netlink: 5 bytes leftover after parsing attributes in process `syz-executor1'. device gre0 entered promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=5883 comm=syz-executor7 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=5893 comm=syz-executor3 binder: 6151:6153 ioctl 541c 20002fff returned -22 nla_parse: 8 callbacks suppressed netlink: 3 bytes leftover after parsing attributes in process `syz-executor3'. binder: 6151:6153 ioctl 541c 20002fff returned -22 netlink: 3 bytes leftover after parsing attributes in process `syz-executor3'. device lo entered promiscuous mode FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 6232 Comm: syz-executor0 Tainted: G B 4.9.52-gc30c69c #54 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801cd4e7960 ffffffff81d93149 ffff8801cd4e7c40 0000000000000000 ffff8801a9825310 ffff8801cd4e7b30 ffff8801a9825200 ffff8801cd4e7b58 ffffffff81660dc8 ffff8801cd4e7ab0 0000000000000000 00000001c8922067 Call Trace: [<ffffffff81d93149>] __dump_stack lib/dump_stack.c:15 [inline] [<ffffffff81d93149>] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [<ffffffff81660dc8>] handle_userfault+0xa48/0x1300 fs/userfaultfd.c:323 [<ffffffff814cfd71>] do_anonymous_page mm/memory.c:2747 [inline] [<ffffffff814cfd71>] handle_pte_fault mm/memory.c:3488 [inline] [<ffffffff814cfd71>] __handle_mm_fault mm/memory.c:3577 [inline] [<ffffffff814cfd71>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [<ffffffff810e020b>] __do_page_fault+0x4eb/0xbd0 arch/x86/mm/fault.c:1397 [<ffffffff810e0917>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [<ffffffff838ad798>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [<ffffffff838ac5c5>] entry_SYSCALL_64_fastpath+0x23/0xc6 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 6213 Comm: syz-executor0 Tainted: G B 4.9.52-gc30c69c #54 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c7297a00 ffffffff81d93149 ffff8801c7297ce0 0000000000000000 ffff8801a9825310 ffff8801c7297bd0 ffff8801a9825200 ffff8801c7297bf8 ffffffff81660dc8 ffff8801c7297b50 0000000041b58ab3 00000001c8922067 Call Trace: [<ffffffff81d93149>] __dump_stack lib/dump_stack.c:15 [inline] [<ffffffff81d93149>] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [<ffffffff81660dc8>] handle_userfault+0xa48/0x1300 fs/userfaultfd.c:323 [<ffffffff814cfd71>] do_anonymous_page mm/memory.c:2747 [inline] [<ffffffff814cfd71>] handle_pte_fault mm/memory.c:3488 [inline] [<ffffffff814cfd71>] __handle_mm_fault mm/memory.c:3577 [inline] [<ffffffff814cfd71>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [<ffffffff810e020b>] __do_page_fault+0x4eb/0xbd0 arch/x86/mm/fault.c:1397 [<ffffffff810e0917>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [<ffffffff838ad798>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [<ffffffff838ac5c5>] entry_SYSCALL_64_fastpath+0x23/0xc6 binder: 6201:6211 ioctl 5417 2066cffc returned -22 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 6232 Comm: syz-executor0 Tainted: G B 4.9.52-gc30c69c #54 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801cd4e7a00 ffffffff81d93149 ffff8801cd4e7ce0 0000000000000000 ffff8801a9825490 ffff8801cd4e7bd0 ffff8801a9825380 ffff8801cd4e7bf8 ffffffff81660dc8 ffff8801cd4e7b50 0000000041b58ab3 00000001c8922067 Call Trace: [<ffffffff81d93149>] __dump_stack lib/dump_stack.c:15 [inline] [<ffffffff81d93149>] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [<ffffffff81660dc8>] handle_userfault+0xa48/0x1300 fs/userfaultfd.c:323 [<ffffffff814cfd71>] do_anonymous_page mm/memory.c:2747 [inline] [<ffffffff814cfd71>] handle_pte_fault mm/memory.c:3488 [inline] [<ffffffff814cfd71>] __handle_mm_fault mm/memory.c:3577 [inline] [<ffffffff814cfd71>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [<ffffffff810e020b>] __do_page_fault+0x4eb/0xbd0 arch/x86/mm/fault.c:1397 [<ffffffff810e0917>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [<ffffffff838ad798>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [<ffffffff838ac5c5>] entry_SYSCALL_64_fastpath+0x23/0xc6 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 6213 Comm: syz-executor0 Tainted: G B 4.9.52-gc30c69c #54 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c7297960 ffffffff81d93149 ffff8801c7297c40 0000000000000000 ffff8801a9825490 ffff8801c7297b30 ffff8801a9825380 ffff8801c7297b58 ffffffff81660dc8 ffff8801c7297ab0 ffff880100000001 00000001c8922067 Call Trace: [<ffffffff81d93149>] __dump_stack lib/dump_stack.c:15 [inline] [<ffffffff81d93149>] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [<ffffffff81660dc8>] handle_userfault+0xa48/0x1300 fs/userfaultfd.c:323 [<ffffffff814cfd71>] do_anonymous_page mm/memory.c:2747 [inline] [<ffffffff814cfd71>] handle_pte_fault mm/memory.c:3488 [inline] [<ffffffff814cfd71>] __handle_mm_fault mm/memory.c:3577 [inline] [<ffffffff814cfd71>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [<ffffffff810e020b>] __do_page_fault+0x4eb/0xbd0 arch/x86/mm/fault.c:1397 [<ffffffff810e0917>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [<ffffffff838ad798>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [<ffffffff838ac5c5>] entry_SYSCALL_64_fastpath+0x23/0xc6 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 6287 Comm: syz-executor0 Tainted: G B 4.9.52-gc30c69c #54 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801acf4f960 ffffffff81d93149 ffff8801acf4fc40 0000000000000000 ffff8801aa492e90 ffff8801acf4fb30 ffff8801aa492d80 ffff8801acf4fb58 ffffffff81660dc8 ffff8801acf4fab0 0000000000000000 00000001c68f5067 Call Trace: [<ffffffff81d93149>] __dump_stack lib/dump_stack.c:15 [inline] [<ffffffff81d93149>] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [<ffffffff81660dc8>] handle_userfault+0xa48/0x1300 fs/userfaultfd.c:323 [<ffffffff814cfd71>] do_anonymous_page mm/memory.c:2747 [inline] [<ffffffff814cfd71>] handle_pte_fault mm/memory.c:3488 [inline] [<ffffffff814cfd71>] __handle_mm_fault mm/memory.c:3577 [inline] [<ffffffff814cfd71>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [<ffffffff810e020b>] __do_page_fault+0x4eb/0xbd0 arch/x86/mm/fault.c:1397 [<ffffffff810e0917>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [<ffffffff838ad798>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [<ffffffff838ac5c5>] entry_SYSCALL_64_fastpath+0x23/0xc6 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 6280 Comm: syz-executor0 Tainted: G B 4.9.52-gc30c69c #54 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c8c4fa00 ffffffff81d93149 ffff8801c8c4fce0 0000000000000000 ffff8801aa492e90 ffff8801c8c4fbd0 ffff8801aa492d80 ffff8801c8c4fbf8 ffffffff81660dc8 ffff8801c8c4fb50 0000000041b58ab3 00000001c68f5067 Call Trace: [<ffffffff81d93149>] __dump_stack lib/dump_stack.c:15 [inline] [<ffffffff81d93149>] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [<ffffffff81660dc8>] handle_userfault+0xa48/0x1300 fs/userfaultfd.c:323 [<ffffffff814cfd71>] do_anonymous_page mm/memory.c:2747 [inline] [<ffffffff814cfd71>] handle_pte_fault mm/memory.c:3488 [inline] [<ffffffff814cfd71>] __handle_mm_fault mm/memory.c:3577 [inline] [<ffffffff814cfd71>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [<ffffffff810e020b>] __do_page_fault+0x4eb/0xbd0 arch/x86/mm/fault.c:1397 [<ffffffff810e0917>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [<ffffffff838ad798>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [<ffffffff838ac5c5>] entry_SYSCALL_64_fastpath+0x23/0xc6 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 6280 Comm: syz-executor0 Tainted: G B 4.9.52-gc30c69c #54 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c8c4fa00 ffffffff81d93149 ffff8801c8c4fce0 0000000000000000 ffff8801aa493010 ffff8801c8c4fbd0 ffff8801aa492f00 ffff8801c8c4fbf8 ffffffff81660dc8 ffff8801c8c4fb50 0000000041b58ab3 00000001c68f5067 Call Trace: [<ffffffff81d93149>] __dump_stack lib/dump_stack.c:15 [inline] [<ffffffff81d93149>] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [<ffffffff81660dc8>] handle_userfault+0xa48/0x1300 fs/userfaultfd.c:323 [<ffffffff814cfd71>] do_anonymous_page mm/memory.c:2747 [inline] [<ffffffff814cfd71>] handle_pte_fault mm/memory.c:3488 [inline] [<ffffffff814cfd71>] __handle_mm_fault mm/memory.c:3577 [inline] [<ffffffff814cfd71>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [<ffffffff810e020b>] __do_page_fault+0x4eb/0xbd0 arch/x86/mm/fault.c:1397 [<ffffffff810e0917>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [<ffffffff838ad798>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [<ffffffff838ac5c5>] entry_SYSCALL_64_fastpath+0x23/0xc6 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 6287 Comm: syz-executor0 Tainted: G B 4.9.52-gc30c69c #54 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801acf4f960 ffffffff81d93149 ffff8801acf4fc40 0000000000000000 ffff8801aa493010 ffff8801acf4fb30 ffff8801aa492f00 ffff8801acf4fb58 ffffffff81660dc8 ffff8801acf4fab0 0000000000000001 00000001c68f5067 Call Trace: [<ffffffff81d93149>] __dump_stack lib/dump_stack.c:15 [inline] [<ffffffff81d93149>] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [<ffffffff81660dc8>] handle_userfault+0xa48/0x1300 fs/userfaultfd.c:323 [<ffffffff814cfd71>] do_anonymous_page mm/memory.c:2747 [inline] [<ffffffff814cfd71>] handle_pte_fault mm/memory.c:3488 [inline] [<ffffffff814cfd71>] __handle_mm_fault mm/memory.c:3577 [inline] [<ffffffff814cfd71>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [<ffffffff810e020b>] __do_page_fault+0x4eb/0xbd0 arch/x86/mm/fault.c:1397 [<ffffffff810e0917>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [<ffffffff838ad798>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [<ffffffff838ac5c5>] entry_SYSCALL_64_fastpath+0x23/0xc6 binder: 6201:6211 ioctl 5417 2066cffc returned -22 9pnet_virtio: no channels available for device ./file0 9pnet_virtio: no channels available for device ./file0 device lo left promiscuous mode device lo entered promiscuous mode device lo left promiscuous mode netlink: 5 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor6'. qtaguid: iface_stat: iface_check_stats_reset_and_adjust(lo): iface reset its stats unexpectedly SELinux: unrecognized netlink message: protocol=9 nlmsg_type=20 sclass=netlink_audit_socket pig=6368 comm=syz-executor6 netlink: 1 bytes leftover after parsing attributes in process `syz-executor6'. device gre0 entered promiscuous mode netlink: 1 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor5'.