Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|
KASAN: use-after-free Write in cipso_v4_doi_putdef lsm net | 2 | 1382d | 1380d | 0/28 | closed as dup on 2021/03/05 07:49 |
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Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|
KASAN: use-after-free Write in cipso_v4_doi_putdef lsm net | 2 | 1382d | 1380d | 0/28 | closed as dup on 2021/03/05 07:49 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2021/03/04 11:31 | 13m | paskripkin@gmail.com | https://linux.googlesource.com/linux/kernel/git/torvalds/linux refs/changes/19/8819/1 | report log |
================================================================== BUG: KASAN: use-after-free in cipso_v4_genopt+0x1078/0x1700 net/ipv4/cipso_ipv4.c:1784 Read of size 1 at addr ffff8881437d5710 by task syz-executor557/8392 CPU: 1 PID: 8392 Comm: syz-executor557 Not tainted 5.12.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x125/0x19e lib/dump_stack.c:120 print_address_description+0x5f/0x3a0 mm/kasan/report.c:232 __kasan_report mm/kasan/report.c:399 [inline] kasan_report+0x15e/0x210 mm/kasan/report.c:416 cipso_v4_genopt+0x1078/0x1700 net/ipv4/cipso_ipv4.c:1784 cipso_v4_sock_setattr+0x7c/0x460 net/ipv4/cipso_ipv4.c:1866 netlbl_sock_setattr+0x28e/0x2f0 net/netlabel/netlabel_kapi.c:995 smack_netlbl_add security/smack/smack_lsm.c:2404 [inline] smack_socket_post_create+0x13b/0x280 security/smack/smack_lsm.c:2774 security_socket_post_create+0x6f/0xd0 security/security.c:2122 __sock_create+0x62f/0x8c0 net/socket.c:1424 sock_create net/socket.c:1459 [inline] __sys_socket+0xde/0x2d0 net/socket.c:1501 __do_sys_socket net/socket.c:1510 [inline] __se_sys_socket net/socket.c:1508 [inline] __x64_sys_socket+0x76/0x80 net/socket.c:1508 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x440999 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcfe002d48 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 000000000000b3fc RCX: 0000000000440999 RDX: 0000000000000002 RSI: 0000000000000003 RDI: 0000040000000002 RBP: 0000000000000000 R08: 00007ffcfe002ee8 R09: 00007ffcfe002ee8 R10: 0000000000000012 R11: 0000000000000246 R12: 00007ffcfe002d5c R13: 431bde82d7b634db R14: 00000000004ae018 R15: 00000000004004a0 Allocated by task 1: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:427 [inline] ____kasan_kmalloc+0xc2/0xf0 mm/kasan/common.c:506 kasan_kmalloc include/linux/kasan.h:233 [inline] kmem_cache_alloc_trace+0x21b/0x340 mm/slub.c:2934 kmalloc include/linux/slab.h:554 [inline] smk_cipso_doi+0x1af/0x4e0 security/smack/smackfs.c:696 init_smk_fs+0xe2/0x24e security/smack/smackfs.c:3010 do_one_initcall+0x12b/0x310 init/main.c:1226 do_initcall_level+0x14a/0x1f5 init/main.c:1299 do_initcalls+0x4b/0x8c init/main.c:1315 kernel_init_freeable+0x2e3/0x406 init/main.c:1537 kernel_init+0xd/0x290 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Freed by task 0: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x3d/0x70 mm/kasan/common.c:46 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:357 ____kasan_slab_free+0x100/0x140 mm/kasan/common.c:360 kasan_slab_free include/linux/kasan.h:199 [inline] slab_free_hook mm/slub.c:1562 [inline] slab_free_freelist_hook+0x13a/0x200 mm/slub.c:1600 slab_free mm/slub.c:3161 [inline] kfree+0xcf/0x2b0 mm/slub.c:4213 rcu_do_batch kernel/rcu/tree.c:2559 [inline] rcu_core+0x7a0/0x1220 kernel/rcu/tree.c:2794 __do_softirq+0x318/0x714 kernel/softirq.c:345 Last potentially related work creation: kasan_save_stack+0x27/0x50 mm/kasan/common.c:38 kasan_record_aux_stack+0xee/0x120 mm/kasan/generic.c:345 __call_rcu kernel/rcu/tree.c:3039 [inline] call_rcu+0x12f/0x8a0 kernel/rcu/tree.c:3114 cipso_v4_doi_remove+0x2e2/0x310 net/ipv4/cipso_ipv4.c:531 netlbl_cipsov4_remove+0x219/0x390 net/netlabel/netlabel_cipso_v4.c:715 genl_family_rcv_msg_doit net/netlink/genetlink.c:739 [inline] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0xe4e/0x1280 net/netlink/genetlink.c:800 netlink_rcv_skb+0x190/0x3a0 net/netlink/af_netlink.c:2502 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline] netlink_unicast+0x786/0x940 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x9ae/0xd50 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg net/socket.c:674 [inline] ____sys_sendmsg+0x519/0x800 net/socket.c:2350 ___sys_sendmsg net/socket.c:2404 [inline] __sys_sendmsg+0x2bf/0x370 net/socket.c:2433 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae The buggy address belongs to the object at ffff8881437d5700 which belongs to the cache kmalloc-64 of size 64 The buggy address is located 16 bytes inside of 64-byte region [ffff8881437d5700, ffff8881437d5740) The buggy address belongs to the page: page:000000003e519aab refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8881437d5b00 pfn:0x1437d5 flags: 0x57ff00000000200(slab) raw: 057ff00000000200 ffffea000511ff88 ffffea00051d0a48 ffff888010841640 raw: ffff8881437d5b00 0000000000200019 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8881437d5600: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc ffff8881437d5680: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc >ffff8881437d5700: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ^ ffff8881437d5780: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc ffff8881437d5800: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/03/02 19:24 | upstream | 7a7fd0de4a98 | 92ead296 | .config | console log | report | syz | C | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Read in cipso_v4_genopt | ||
2021/03/03 19:25 | upstream | f69d02e37a85 | 06ed56cd | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Read in cipso_v4_genopt | |||
2021/03/02 14:30 | upstream | 7a7fd0de4a98 | 92ead296 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Read in cipso_v4_genopt | |||
2021/02/27 22:34 | upstream | 5695e5161974 | 4c37c133 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Read in cipso_v4_genopt | |||
2021/02/26 10:56 | upstream | 2c87f7a38f93 | 76f7fc95 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Read in cipso_v4_genopt |