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KASAN: slab-out-of-bounds Read in bitmap_ip_add | 3 (6) | 2020/03/22 18:02 |
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KASAN: slab-out-of-bounds Read in bitmap_ip_add | 3 (6) | 2020/03/22 18:02 |
================================================================== BUG: KASAN: slab-out-of-bounds in test_bit include/asm-generic/bitops/instrumented-non-atomic.h:110 [inline] BUG: KASAN: slab-out-of-bounds in bitmap_ip_do_add net/netfilter/ipset/ip_set_bitmap_ip.c:83 [inline] BUG: KASAN: slab-out-of-bounds in bitmap_ip_add+0xef/0xe60 net/netfilter/ipset/ip_set_bitmap_gen.h:136 Read of size 8 at addr ffff8880a6fac400 by task syz-executor.0/9657 CPU: 0 PID: 9657 Comm: syz-executor.0 Not tainted 5.5.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 print_address_description.constprop.0.cold+0xd4/0x30b mm/kasan/report.c:374 __kasan_report.cold+0x1b/0x41 mm/kasan/report.c:506 kasan_report+0x12/0x20 mm/kasan/common.c:639 check_memory_region_inline mm/kasan/generic.c:185 [inline] check_memory_region+0x134/0x1a0 mm/kasan/generic.c:192 __kasan_check_read+0x11/0x20 mm/kasan/common.c:95 test_bit include/asm-generic/bitops/instrumented-non-atomic.h:110 [inline] bitmap_ip_do_add net/netfilter/ipset/ip_set_bitmap_ip.c:83 [inline] bitmap_ip_add+0xef/0xe60 net/netfilter/ipset/ip_set_bitmap_gen.h:136 bitmap_ip_uadt+0x73e/0xa10 net/netfilter/ipset/ip_set_bitmap_ip.c:186 call_ad+0x1a0/0x5a0 net/netfilter/ipset/ip_set_core.c:1716 ip_set_ad.isra.0+0x572/0xb20 net/netfilter/ipset/ip_set_core.c:1804 ip_set_uadd+0x37/0x50 net/netfilter/ipset/ip_set_core.c:1829 nfnetlink_rcv_msg+0xcf2/0xfb0 net/netfilter/nfnetlink.c:229 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477 nfnetlink_rcv+0x1ba/0x460 net/netfilter/nfnetlink.c:563 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x58c/0x7d0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:639 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:659 ____sys_sendmsg+0x753/0x880 net/socket.c:2330 ___sys_sendmsg+0x100/0x170 net/socket.c:2384 __sys_sendmsg+0x105/0x1d0 net/socket.c:2417 __do_sys_sendmsg net/socket.c:2426 [inline] __se_sys_sendmsg net/socket.c:2424 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2424 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45b159 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd1c3a14c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fd1c3a156d4 RCX: 000000000045b159 RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000008dc R14: 00000000004ca08f R15: 000000000075bf2c Allocated by task 9657: save_stack+0x23/0x90 mm/kasan/common.c:72 set_track mm/kasan/common.c:80 [inline] __kasan_kmalloc mm/kasan/common.c:513 [inline] __kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:486 kasan_kmalloc+0x9/0x10 mm/kasan/common.c:527 __do_kmalloc mm/slab.c:3656 [inline] __kmalloc+0x163/0x770 mm/slab.c:3665 kmalloc include/linux/slab.h:561 [inline] kzalloc include/linux/slab.h:670 [inline] ip_set_alloc+0x38/0x5e net/netfilter/ipset/ip_set_core.c:255 init_map_ip net/netfilter/ipset/ip_set_bitmap_ip.c:223 [inline] bitmap_ip_create+0x6ec/0xc20 net/netfilter/ipset/ip_set_bitmap_ip.c:327 ip_set_create+0x6f1/0x1500 net/netfilter/ipset/ip_set_core.c:1111 nfnetlink_rcv_msg+0xcf2/0xfb0 net/netfilter/nfnetlink.c:229 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477 nfnetlink_rcv+0x1ba/0x460 net/netfilter/nfnetlink.c:563 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x58c/0x7d0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:639 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:659 ____sys_sendmsg+0x753/0x880 net/socket.c:2330 ___sys_sendmsg+0x100/0x170 net/socket.c:2384 __sys_sendmsg+0x105/0x1d0 net/socket.c:2417 __do_sys_sendmsg net/socket.c:2426 [inline] __se_sys_sendmsg net/socket.c:2424 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2424 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 9437: save_stack+0x23/0x90 mm/kasan/common.c:72 set_track mm/kasan/common.c:80 [inline] kasan_set_free_info mm/kasan/common.c:335 [inline] __kasan_slab_free+0x102/0x150 mm/kasan/common.c:474 kasan_slab_free+0xe/0x10 mm/kasan/common.c:483 __cache_free mm/slab.c:3426 [inline] kfree+0x10a/0x2c0 mm/slab.c:3757 tomoyo_find_next_domain+0x6e7/0x1f6c security/tomoyo/domain.c:878 tomoyo_bprm_check_security security/tomoyo/tomoyo.c:107 [inline] tomoyo_bprm_check_security+0x124/0x1a0 security/tomoyo/tomoyo.c:97 security_bprm_check+0x63/0xb0 security/security.c:784 search_binary_handler+0x71/0x570 fs/exec.c:1645 exec_binprm fs/exec.c:1701 [inline] __do_execve_file.isra.0+0x1329/0x22b0 fs/exec.c:1821 do_execveat_common fs/exec.c:1867 [inline] do_execve fs/exec.c:1884 [inline] __do_sys_execve fs/exec.c:1960 [inline] __se_sys_execve fs/exec.c:1955 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1955 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe The buggy address belongs to the object at ffff8880a6fac400 which belongs to the cache kmalloc-32 of size 32 The buggy address is located 0 bytes inside of 32-byte region [ffff8880a6fac400, ffff8880a6fac420) The buggy address belongs to the page: page:ffffea00029beb00 refcount:1 mapcount:0 mapping:ffff8880aa4001c0 index:0xffff8880a6facfc1 raw: 00fffe0000000200 ffffea000278b788 ffffea0002996648 ffff8880aa4001c0 raw: ffff8880a6facfc1 ffff8880a6fac000 0000000100000034 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880a6fac300: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc ffff8880a6fac380: 00 06 fc fc fc fc fc fc fb fb fb fb fc fc fc fc >ffff8880a6fac400: 04 fc fc fc fc fc fc fc fb fb fb fb fc fc fc fc ^ ffff8880a6fac480: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc ffff8880a6fac500: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/01/19 12:37 | upstream | 244dc2689085 | bc8bc756 | .config | console log | report | syz | ci-upstream-kasan-gce | ||||
2020/01/19 09:13 | upstream | 244dc2689085 | bc8bc756 | .config | console log | report | syz | ci-upstream-kasan-gce-root | ||||
2020/01/19 01:47 | upstream | 244dc2689085 | bc8bc756 | .config | console log | report | syz | ci-upstream-kasan-gce-smack-root | ||||
2020/01/19 07:08 | upstream | 244dc2689085 | bc8bc756 | .config | console log | report | syz | ci-upstream-kasan-gce-386 | ||||
2020/01/19 07:31 | net-old | e02d9c4c68dc | bc8bc756 | .config | console log | report | syz | ci-upstream-net-this-kasan-gce | ||||
2020/01/30 09:07 | linux-next | 2747d5fdab78 | 5ed23f9a | .config | console log | report | syz | ci-upstream-linux-next-kasan-gce-root | ||||
2020/01/22 11:39 | upstream | d96d875ef5dd | 8eda0b95 | .config | console log | report | ci-upstream-kasan-gce |