================================================================== BUG: KASAN: wild-memory-access on address ffe708746e335000 Read of size 37 by task syz-executor5/5865 CPU: 0 PID: 5865 Comm: syz-executor5 Not tainted 4.9.53-g2b3a26c #60 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c989fae8 ffffffff81d93789 ffe708746e335000 0000000000000025 0000000000000000 ffff8801d0434000 ffe708746e335000 ffff8801c989fb70 ffffffff8153d48f 0000000000000000 0000000000000001 ffffffff826650bb 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 [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] vfs_read+0x107/0x330 fs/read_write.c:475 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] entry_SYSCALL_64_fastpath+0x23/0xc6 ================================================================== 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 selinux_nlmsg_perm: 207 callbacks suppressed SELinux: unrecognized netlink message: protocol=9 nlmsg_type=770 sclass=netlink_audit_socket pig=5901 comm=syz-executor3 device lo entered promiscuous mode SELinux: unrecognized netlink message: protocol=9 nlmsg_type=770 sclass=netlink_audit_socket pig=5901 comm=syz-executor3 sock: sock_set_timeout: `syz-executor4' (pid 5981) tries to set negative timeout sock: sock_set_timeout: `syz-executor4' (pid 5988) tries to set negative timeout IPVS: Creating netns size=2536 id=14 device lo entered promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode device lo left promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=6180 comm=syz-executor7 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=6214 comm=syz-executor4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=6214 comm=syz-executor4 device syz5 entered promiscuous mode device gre0 entered promiscuous mode IPVS: length: 24 != 8 IPVS: length: 24 != 8 tmpfs: No value for mount option 'I' tmpfs: No value for mount option 'I' IPVS: Creating netns size=2536 id=15 IPVS: Creating netns size=2536 id=16 nla_parse: 9 callbacks suppressed netlink: 8 bytes leftover after parsing attributes in process `syz-executor7'. device syz2 entered promiscuous mode device lo left promiscuous mode netlink: 8 bytes leftover after parsing attributes in process `syz-executor7'. binder: 6652:6684 ioctl 4b60 205baf8c returned -22 binder: 6652:6656 ioctl 541a 2057bffc returned -22 binder: 6652:6656 ioctl 4b60 205baf8c returned -22 binder: 6652:6684 ioctl 541a 2057bffc returned -22 IPVS: length: 24 != 49176 IPVS: length: 24 != 49176 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=6860 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=6860 comm=syz-executor1 device syz6 entered promiscuous mode handle_userfault: 1 callbacks suppressed FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 6925 Comm: syz-executor0 Tainted: G B 4.9.53-g2b3a26c #60 FAULT_FLAG_ALLOW_RETRY missing 30 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a754f670 ffffffff81d93789 ffff8801a754f950 0000000000000000 ffff8801c9900a10 ffff8801a754f840 ffff8801c9900900 ffff8801a754f868 ffffffff816611c8 ffff8801a754f7c0 0000000000000000 00000001cd9ca067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa48/0x1300 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5b7/0xd70 arch/x86/mm/fault.c:1397 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1461 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] do_pselect fs/select.c:688 [inline] [] SYSC_pselect6 fs/select.c:729 [inline] [] SyS_pselect6+0x289/0x500 fs/select.c:714 [] entry_SYSCALL_64_fastpath+0x23/0xc6 CPU: 0 PID: 6929 Comm: syz-executor0 Tainted: G B 4.9.53-g2b3a26c #60 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a7ee73d0 ffffffff81d93789 ffff8801a7ee76b0 0000000000000000 ffff8801c9900a10 ffff8801a7ee75a0 ffff8801c9900900 ffff8801a7ee75c8 ffffffff816611c8 ffff8801a7ee7520 0000000000000000 00000001cd9ca067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa48/0x1300 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5b7/0xd70 arch/x86/mm/fault.c:1397 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1461 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] SYSC_ppoll fs/select.c:1034 [inline] [] SyS_ppoll+0x1cf/0x400 fs/select.c:1005 [] entry_SYSCALL_64_fastpath+0x23/0xc6 device lo entered promiscuous mode device syz6 left promiscuous mode netlink: 64 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 64 bytes leftover after parsing attributes in process `syz-executor0'. IPVS: Creating netns size=2536 id=17 netlink: 1 bytes leftover after parsing attributes in process `syz-executor5'. IPVS: Creating netns size=2536 id=18 netlink: 1 bytes leftover after parsing attributes in process `syz-executor5'. 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 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=7203 comm=syz-executor6 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=7203 comm=syz-executor6 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=7203 comm=syz-executor6 9pnet_virtio: no channels available for device ./file0 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=7203 comm=syz-executor6 9pnet_virtio: no channels available for device ./file0 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=7203 comm=syz-executor6 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=7203 comm=syz-executor6 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=7243 comm=syz-executor6 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=7243 comm=syz-executor6 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=7243 comm=syz-executor6 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pig=7243 comm=syz-executor6 IPVS: Creating netns size=2536 id=19 binder: 7275:7279 ioctl 4b45 20306000 returned -22 binder: 7275:7279 ioctl 540f 207e9000 returned -22 binder: 7275:7279 ioctl 4b45 20306000 returned -22 IPVS: Creating netns size=2536 id=20 binder: 7275:7279 ioctl 540f 207e9000 returned -22 IPVS: Creating netns size=2536 id=21 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 keychord: keycode 29282 out of range device gre0 entered promiscuous mode device gre0 left promiscuous mode keychord: keycode 29282 out of range device gre0 entered promiscuous mode qtaguid: iface_stat: iface_check_stats_reset_and_adjust(gre0): iface reset its stats unexpectedly device gre0 entered promiscuous mode device gre0 left promiscuous mode netlink: 44 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 44 bytes leftover after parsing attributes in process `syz-executor4'. device gre0 entered promiscuous mode IPVS: Creating netns size=2536 id=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) device gre0 entered promiscuous mode pktgen: Initialization failed for all threads blk_update_request: I/O error, dev loop5, sector 0 nla_parse: 4 callbacks suppressed netlink: 5 bytes leftover after parsing attributes in process `syz-executor1'. blk_update_request: I/O error, dev loop5, sector 0 netlink: 9 bytes leftover after parsing attributes in process `syz-executor2'. A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. netlink: 9 bytes leftover after parsing attributes in process `syz-executor2'. A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. FAULT_FLAG_ALLOW_RETRY missing 30 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 8200 Comm: syz-executor7 Tainted: G B 4.9.53-g2b3a26c #60 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d14978f0 ffffffff81d93789 ffff8801d1497bd0 0000000000000000 ffff8801c979ce90 ffff8801d1497ac0 ffff8801c979cd80 ffff8801d1497ae8 ffffffff816611c8 ffff8801d1497a40 ffffffff8418dcf0 00000001a631c067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa48/0x1300 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5b7/0xd70 arch/x86/mm/fault.c:1397 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1461 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] entry_SYSCALL_64_fastpath+0x23/0xc6 binder: 8245:8247 ioctl 4b45 20306000 returned -22 binder: 8244:8248 ioctl 4b3b 1 returned -22 binder: 8245:8247 ioctl 4b45 20306000 returned -22 binder: 8244:8248 ioctl 4b3b 1 returned -22 CPU: 0 PID: 8194 Comm: syz-executor7 Tainted: G B 4.9.53-g2b3a26c #60 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c94a7990 ffffffff81d93789 ffff8801c94a7c70 0000000000000000 ffff8801c979ce90 ffff8801c94a7b60 ffff8801c979cd80 ffff8801c94a7b88 ffffffff816611c8 ffff8801c94a7ae0 ffffffff838ad22b 00000001a631c067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa48/0x1300 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5b7/0xd70 arch/x86/mm/fault.c:1397 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1461 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] entry_SYSCALL_64_fastpath+0x23/0xc6 netlink: 4 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor4'. sg_write: data in/out 327644/336 bytes for SCSI command 0x0-- guessing data in; program syz-executor6 not setting count and/or reply_len properly netlink: 2 bytes leftover after parsing attributes in process `syz-executor0'. binder: 8382:8385 ioctl 5424 20603ffc returned -22 binder: 8382:8392 ioctl 5424 20603ffc returned -22 netlink: 8 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor2'. device gre0 entered promiscuous mode syz-executor0: vmalloc: allocation failure: 17178820608 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 8422 Comm: syz-executor0 Tainted: G B 4.9.53-g2b3a26c #60 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801ccd87880 ffffffff81d93789 1ffff100399b0f13 ffff8801a6499800 ffffffff83ab7ac0 0000000000000001 0000000000400000 ffff8801ccd87990 ffffffff81451172 024000c2b775ad53 0000000041b58ab3 ffffffff8418fdb5 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] warn_alloc+0x212/0x240 mm/page_alloc.c:3054 [] __vmalloc_node_range+0x3f5/0x5f0 mm/vmalloc.c:1722 [] __vmalloc_node mm/vmalloc.c:1744 [inline] [] __vmalloc_node_flags mm/vmalloc.c:1758 [inline] [] vmalloc+0x5b/0x70 mm/vmalloc.c:1773 [] xt_alloc_entry_offsets+0x41/0x60 net/netfilter/x_tables.c:722