Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|
KASAN: use-after-free Read in __rhashtable_lookup rds | 1 | 2253d | 2249d | 0/28 | closed as dup on 2018/08/08 09:26 |
syzbot |
sign-in | mailing list | source | docs |
Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|
KASAN: use-after-free Read in __rhashtable_lookup rds | 1 | 2253d | 2249d | 0/28 | closed as dup on 2018/08/08 09:26 |
Title | Replies (including bot) | Last reply |
---|---|---|
[PATCH 4.18 000/235] 4.18.10-stable review | 261 (261) | 2018/10/09 15:15 |
[PATCH 4.14 000/173] 4.14.72-stable review | 186 (186) | 2018/09/26 09:48 |
[PATCH 4.9 000/111] 4.9.129-stable review | 121 (121) | 2018/09/25 20:42 |
[Patch net v2] rds: fix two RCU related problems | 3 (3) | 2018/09/12 07:10 |
KASAN: use-after-free Read in __rhashtable_lookup (2) | 4 (8) | 2018/09/08 22:07 |
KASAN: use-after-free Read in rds_find_bound | 7 (8) | 2018/02/14 17:58 |
[PATCH] rds: fix use-after-free read in rds_find_bound | 7 (7) | 2017/12/31 22:30 |
================================================================== BUG: KASAN: use-after-free in constant_test_bit arch/x86/include/asm/bitops.h:325 [inline] BUG: KASAN: use-after-free in sock_flag include/net/sock.h:800 [inline] BUG: KASAN: use-after-free in rds_find_bound+0x989/0xa10 net/rds/bind.c:64 Read of size 8 at addr ffff8801c09a60e0 by task kworker/u4:3/283 CPU: 0 PID: 283 Comm: kworker/u4:3 Not tainted 4.15.0-rc4+ #164 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: krdsd rds_send_worker Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 print_address_description+0x73/0x250 mm/kasan/report.c:252 netlink: 'syz-executor1': attribute type 16 has an invalid length. kasan_report_error mm/kasan/report.c:351 [inline] kasan_report+0x25b/0x340 mm/kasan/report.c:409 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:430 constant_test_bit arch/x86/include/asm/bitops.h:325 [inline] sock_flag include/net/sock.h:800 [inline] rds_find_bound+0x989/0xa10 net/rds/bind.c:64 netlink: 'syz-executor1': attribute type 16 has an invalid length. rds_recv_incoming+0x582/0x11d0 net/rds/recv.c:360 rds_loop_xmit+0x149/0x320 net/rds/loop.c:82 rds_send_xmit+0xa48/0x22d0 net/rds/send.c:349 rds_send_worker+0x115/0x2a0 net/rds/threads.c:189 process_one_work+0xbbf/0x1b10 kernel/workqueue.c:2112 worker_thread+0x223/0x1990 kernel/workqueue.c:2246 kthread+0x33c/0x400 kernel/kthread.c:238 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:515 Allocated by task 4918: save_stack+0x43/0xd0 mm/kasan/kasan.c:447 set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:551 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:489 kmem_cache_alloc+0x12e/0x760 mm/slab.c:3544 sk_prot_alloc+0x65/0x2a0 net/core/sock.c:1465 sk_alloc+0x8c/0x730 net/core/sock.c:1525 rds_create+0x11c/0x660 net/rds/af_rds.c:535 __sock_create+0x4d4/0x850 net/socket.c:1257 sock_create net/socket.c:1297 [inline] SYSC_socket net/socket.c:1327 [inline] SyS_socket+0xeb/0x1d0 net/socket.c:1307 entry_SYSCALL_64_fastpath+0x1f/0x96 Freed by task 4918: save_stack+0x43/0xd0 mm/kasan/kasan.c:447 set_track mm/kasan/kasan.c:459 [inline] kasan_slab_free+0x71/0xc0 mm/kasan/kasan.c:524 __cache_free mm/slab.c:3488 [inline] kmem_cache_free+0x83/0x2a0 mm/slab.c:3746 sk_prot_free net/core/sock.c:1506 [inline] __sk_destruct+0x622/0x910 net/core/sock.c:1590 sk_destruct+0x47/0x80 net/core/sock.c:1598 __sk_free+0xf1/0x2b0 net/core/sock.c:1609 sk_free+0x2a/0x40 net/core/sock.c:1620 sock_put include/net/sock.h:1652 [inline] rds_release+0x3a6/0x520 net/rds/af_rds.c:89 sock_release+0x8d/0x1e0 net/socket.c:593 sock_close+0x16/0x20 net/socket.c:1121 __fput+0x327/0x7e0 fs/file_table.c:210 ____fput+0x15/0x20 fs/file_table.c:244 task_work_run+0x199/0x270 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x296/0x310 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264 entry_SYSCALL_64_fastpath+0x94/0x96 The buggy address belongs to the object at ffff8801c09a6080 which belongs to the cache RDS of size 1472 The buggy address is located 96 bytes inside of 1472-byte region [ffff8801c09a6080, ffff8801c09a6640) The buggy address belongs to the page: page:0000000016f9f919 count:1 mapcount:0 mapping:000000007bb0ced8 index:0x0 compound_mapcount: 0 flags: 0x2fffc0000008100(slab|head) raw: 02fffc0000008100 ffff8801c09a6080 0000000000000000 0000000100000005 raw: ffffea0007665620 ffff8801d3f07f48 ffff8801d3d4a500 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801c09a5f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8801c09a6000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8801c09a6080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8801c09a6100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8801c09a6180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2017/12/26 08:46 | net-next-old | fba961ab29e5 | 73aba437 | .config | console log | report | ci-upstream-net-kasan-gce |