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KASAN: slab-out-of-bounds Read in bitmap_port_ext_cleanup | 0 (3) | 2020/03/15 05:49 |
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KASAN: slab-out-of-bounds Read in bitmap_port_ext_cleanup | 0 (3) | 2020/03/15 05:49 |
================================================================== 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_port_ext_cleanup+0xe6/0x2a0 net/netfilter/ipset/ip_set_bitmap_gen.h:51 Read of size 8 at addr ffff88809e590f40 by task syz-executor244/9906 CPU: 1 PID: 9906 Comm: syz-executor244 Not tainted 5.5.0-rc7-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_port_ext_cleanup+0xe6/0x2a0 net/netfilter/ipset/ip_set_bitmap_gen.h:51 bitmap_port_destroy+0x180/0x1d0 net/netfilter/ipset/ip_set_bitmap_gen.h:64 ip_set_create+0xe47/0x1500 net/netfilter/ipset/ip_set_core.c:1165 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: 0033:0x441399 Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 9b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffe460e5648 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441399 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 0000000000014ae3 R08: 00000000004002c8 R09: 00000000004002c8 R10: 0000000000000004 R11: 0000000000000246 R12: 00000000004021c0 R13: 0000000000402250 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 9906: 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_port net/netfilter/ipset/ip_set_bitmap_port.c:234 [inline] bitmap_port_create+0x3dc/0x7c0 net/netfilter/ipset/ip_set_bitmap_port.c:276 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 9634: 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_check_open_permission+0x19e/0x3e0 security/tomoyo/file.c:786 tomoyo_file_open security/tomoyo/tomoyo.c:319 [inline] tomoyo_file_open+0xa9/0xd0 security/tomoyo/tomoyo.c:314 security_file_open+0x71/0x300 security/security.c:1497 do_dentry_open+0x37a/0x1380 fs/open.c:784 vfs_open+0xa0/0xd0 fs/open.c:914 do_last fs/namei.c:3356 [inline] path_openat+0x118b/0x3180 fs/namei.c:3473 do_filp_open+0x1a1/0x280 fs/namei.c:3503 do_sys_open+0x3fe/0x5d0 fs/open.c:1097 __do_sys_open fs/open.c:1115 [inline] __se_sys_open fs/open.c:1110 [inline] __x64_sys_open+0x7e/0xc0 fs/open.c:1110 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 ffff88809e590f40 which belongs to the cache kmalloc-32 of size 32 The buggy address is located 0 bytes inside of 32-byte region [ffff88809e590f40, ffff88809e590f60) The buggy address belongs to the page: page:ffffea0002796400 refcount:1 mapcount:0 mapping:ffff8880aa4001c0 index:0xffff88809e590fc1 raw: 00fffe0000000200 ffffea00029458c8 ffffea00025bfa48 ffff8880aa4001c0 raw: ffff88809e590fc1 ffff88809e590000 000000010000002d 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88809e590e00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc ffff88809e590e80: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc >ffff88809e590f00: fb fb fb fb fc fc fc fc 04 fc fc fc fc fc fc fc ^ ffff88809e590f80: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc ffff88809e591000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/01/25 18:13 | upstream | d5d359b0ac3f | 2e95ab33 | .config | console log | report | syz | C | ci-upstream-kasan-gce-root | |||
2020/01/25 11:22 | upstream | d5d359b0ac3f | 2e95ab33 | .config | console log | report | syz | C | ci-upstream-kasan-gce-selinux-root | |||
2020/01/23 20:29 | upstream | 131701c697e8 | 3334d684 | .config | console log | report | syz | C | ci-upstream-kasan-gce | |||
2020/01/23 20:29 | upstream | 131701c697e8 | 3334d684 | .config | console log | report | syz | C | ci-upstream-kasan-gce-386 | |||
2020/01/23 20:34 | net-old | 1efba987c486 | 3334d684 | .config | console log | report | syz | C | ci-upstream-net-this-kasan-gce | |||
2020/01/19 00:32 | net-old | e02d9c4c68dc | bc8bc756 | .config | console log | report | syz | C | ci-upstream-net-this-kasan-gce | |||
2020/01/23 20:33 | net-next-old | fd786fb1d2ca | 3334d684 | .config | console log | report | syz | C | ci-upstream-net-kasan-gce | |||
2020/01/27 11:31 | linux-next | 2747d5fdab78 | dd56146d | .config | console log | report | syz | C | ci-upstream-linux-next-kasan-gce-root | |||
2020/01/23 19:46 | upstream | 131701c697e8 | 3334d684 | .config | console log | report | ci-upstream-kasan-gce | |||||
2020/01/23 19:45 | net-old | 1efba987c486 | 3334d684 | .config | console log | report | ci-upstream-net-this-kasan-gce |