================================================================== BUG: KASAN: use-after-free in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801d1404af8 BUG: KASAN: use-after-free in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801d1404af8 BUG: KASAN: use-after-free in static_key_count include/linux/jump_label.h:174 [inline] at addr ffff8801d1404af8 BUG: KASAN: use-after-free in static_key_false include/linux/jump_label.h:184 [inline] at addr ffff8801d1404af8 BUG: KASAN: use-after-free in perf_sw_event include/linux/perf_event.h:1039 [inline] at addr ffff8801d1404af8 BUG: KASAN: use-after-free in __do_page_fault+0xc80/0xd70 arch/x86/mm/fault.c:1438 at addr ffff8801d1404af8 Read of size 8 by task syz-executor0/14957 CPU: 0 PID: 14957 Comm: syz-executor0 Not tainted 4.9.64-gfbb7468 #94 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d4d27d88 ffffffff81d90429 ffff8801da155140 ffff8801d1404aa8 ffff8801d1404b60 ffffed003a28095f ffff8801d1404af8 ffff8801d4d27db0 ffffffff8153a3ac ffffed003a28095f ffff8801da155140 0000000000000000 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] kasan_report mm/kasan/report.c:330 [inline] [] __asan_report_load8_noabort+0x29/0x30 mm/kasan/report.c:330 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] static_key_count include/linux/jump_label.h:174 [inline] [] static_key_false include/linux/jump_label.h:184 [inline] [] perf_sw_event include/linux/perf_event.h:1039 [inline] [] __do_page_fault+0xc80/0xd70 arch/x86/mm/fault.c:1438 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1460 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 Object at ffff8801d1404aa8, in cache vm_area_struct size: 184 Allocated: PID = 14957 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 kmem_cache_zalloc include/linux/slab.h:626 [inline] mmap_region+0x587/0xfd0 mm/mmap.c:1662 do_mmap+0x57b/0xbe0 mm/mmap.c:1473 do_mmap_pgoff include/linux/mm.h:2018 [inline] vm_mmap_pgoff+0x16b/0x1b0 mm/util.c:305 SYSC_mmap_pgoff mm/mmap.c:1523 [inline] SyS_mmap_pgoff+0xd0/0x560 mm/mmap.c:1481 SYSC_mmap arch/x86/kernel/sys_x86_64.c:95 [inline] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:86 entry_SYSCALL_64_fastpath+0x23/0xc6 Freed: PID = 14965 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 remove_vma+0x11d/0x160 mm/mmap.c:175 remove_vma_list mm/mmap.c:2482 [inline] do_munmap+0x7ff/0xeb0 mm/mmap.c:2705 mmap_region+0x14d/0xfd0 mm/mmap.c:1635 do_mmap+0x57b/0xbe0 mm/mmap.c:1473 do_mmap_pgoff include/linux/mm.h:2018 [inline] vm_mmap_pgoff+0x16b/0x1b0 mm/util.c:305 SYSC_mmap_pgoff mm/mmap.c:1523 [inline] SyS_mmap_pgoff+0xd0/0x560 mm/mmap.c:1481 SYSC_mmap arch/x86/kernel/sys_x86_64.c:95 [inline] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:86 entry_SYSCALL_64_fastpath+0x23/0xc6 Memory state around the buggy address: ffff8801d1404980: fc fc fc fc fc fc fb fb fb fb fb fb fb fb fb fb ffff8801d1404a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc >ffff8801d1404a80: fc fc fc fc fc fb fb fb fb fb fb fb fb fb fb fb ^ ffff8801d1404b00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d1404b80: fc fc fc fc fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== binder: 14979:14988 ioctl 80045200 20348ffc returned -22 netlink: 3 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor3'. PF_BRIDGE: RTM_SETLINK with unknown ifindex PF_BRIDGE: RTM_SETLINK with unknown ifindex binder: 14979:14998 ioctl 80045200 20348ffc returned -22 TCP: request_sock_TCP: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. binder: 15081:15087 ioctl 5603 20e9affa returned -22 binder: 15081:15087 ioctl c0bc5310 20612000 returned -22 binder: 15081:15087 ioctl 4b69 20fb7f68 returned -22 binder: 15081:15105 ioctl 5603 20e9affa returned -22 binder: 15081:15087 ioctl c0bc5310 20612000 returned -22 binder: 15081:15087 ioctl 4b69 20fb7f68 returned -22 IPVS: Creating netns size=2536 id=37 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: 5 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor3'. device gre0 entered promiscuous mode sd 0:0:1:0: [sg0] tag#241 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK sd 0:0:1:0: [sg0] tag#241 CDB: opcode=0xff (vendor) sd 0:0:1:0: [sg0] tag#241 CDB[00]: ff ff ff ff 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#241 CDB[10]: 00 00 00 00 10 27 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#241 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#241 CDB[30]: 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#241 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK sd 0:0:1:0: [sg0] tag#241 CDB: opcode=0xff (vendor) sd 0:0:1:0: [sg0] tag#241 CDB[00]: ff ff ff ff 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#241 CDB[10]: 00 00 00 00 10 27 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#241 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#241 CDB[30]: 00 00 00 00 00 00 00 00 00 00 00 00 binder: 15510:15511 ioctl 8936 20c4cfff returned -22 binder: 15510:15511 ioctl 8936 20c4cfff returned -22 device gre0 entered promiscuous mode selinux_nlmsg_perm: 6 callbacks suppressed SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=15649 comm=syz-executor5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=15649 comm=syz-executor5 binder: 15682:15684 ioctl c0106426 20435ff0 returned -22 binder: 15682:15695 ioctl c0106426 20435ff0 returned -22 sg_write: data in/out 65498/34 bytes for SCSI command 0xfe-- guessing data in; program syz-executor0 not setting count and/or reply_len properly SELinux: unrecognized netlink message: protocol=0 nlmsg_type=12544 sclass=netlink_route_socket pig=15764 comm=syz-executor4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=12544 sclass=netlink_route_socket pig=15779 comm=syz-executor4 binder: 15955:15969 ioctl 5401 20013fdc returned -22 binder: 15955:15969 ioctl 5401 20013fdc returned -22 IPVS: Creating netns size=2536 id=38 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 sd 0:0:1:0: [sg0] tag#259 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK sd 0:0:1:0: [sg0] tag#259 CDB: Test Unit Ready sd 0:0:1:0: [sg0] tag#259 CDB[00]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#259 CDB[10]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#259 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#259 CDB[30]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#259 CDB[40]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#259 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK sd 0:0:1:0: [sg0] tag#259 CDB: Test Unit Ready sd 0:0:1:0: [sg0] tag#259 CDB[00]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#259 CDB[10]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#259 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#259 CDB[30]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 sd 0:0:1:0: [sg0] tag#259 CDB[40]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=2334 sclass=netlink_route_socket pig=16201 comm=syz-executor3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=2334 sclass=netlink_route_socket pig=16205 comm=syz-executor3 device gre0 entered promiscuous mode nla_parse: 17 callbacks suppressed netlink: 13 bytes leftover after parsing attributes in process `syz-executor0'. device gre0 entered promiscuous mode netlink: 13 bytes leftover after parsing attributes in process `syz-executor0'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=59136 sclass=netlink_route_socket pig=16379 comm=syz-executor4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=59136 sclass=netlink_route_socket pig=16399 comm=syz-executor4 device lo left promiscuous mode netlink: 16 bytes leftover after parsing attributes in process `syz-executor3'. device lo entered promiscuous mode device lo left promiscuous mode sock: sock_set_timeout: `syz-executor1' (pid 16465) tries to set negative timeout sock: sock_set_timeout: `syz-executor1' (pid 16457) tries to set negative timeout IPVS: Creating netns size=2536 id=39 IPVS: Creating netns size=2536 id=40 IPVS: Creating netns size=2536 id=41 IPVS: Creating netns size=2536 id=42 device gre0 entered promiscuous mode device gre0 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: 16762:16765 ioctl 40082404 20000ff8 returned -22 binder: 16762:16765 ioctl 8914 20c01000 returned -22 binder: 16762:16777 ioctl 40082404 20000ff8 returned -22 binder: 16762:16765 ioctl 8914 20c01000 returned -22 device gre0 entered promiscuous mode pktgen: kernel_thread() failed for cpu 0 pktgen: Cannot create thread for cpu 0 (-4) IPVS: Creating netns size=2536 id=43 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-executor4'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=16859 comm=syz-executor4 netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. device lo left promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17022 comm=syz-executor2 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17022 comm=syz-executor2 netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17043 comm=syz-executor2 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17043 comm=syz-executor2 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17043 comm=syz-executor2 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17043 comm=syz-executor2