Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in skb_dequeue / unix_dgram_peer_wake_me (2) net | 3 | 1535d | 1604d | 0/26 | auto-closed as invalid on 2020/04/20 10:54 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in skb_dequeue / unix_dgram_peer_wake_me (2) net | 3 | 1535d | 1604d | 0/26 | auto-closed as invalid on 2020/04/20 10:54 |
================================================================== BUG: KCSAN: data-race in skb_dequeue / unix_dgram_peer_wake_me write to 0xffff8881060960e0 of 4 bytes by task 5176 on cpu 0: __skb_unlink include/linux/skbuff.h:2004 [inline] __skb_dequeue include/linux/skbuff.h:2024 [inline] skb_dequeue+0x71/0x100 net/core/skbuff.c:3040 skb_queue_purge+0x2f/0x50 net/core/skbuff.c:3077 unix_dgram_disconnected+0x42/0xe0 net/unix/af_unix.c:474 unix_dgram_connect+0x210/0x490 net/unix/af_unix.c:1164 __sys_connect+0x1e9/0x250 net/socket.c:1828 __do_sys_connect net/socket.c:1839 [inline] __se_sys_connect net/socket.c:1836 [inline] __x64_sys_connect+0x4c/0x60 net/socket.c:1836 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff8881060960e0 of 4 bytes by task 5173 on cpu 1: unix_recvq_full net/unix/af_unix.c:194 [inline] unix_dgram_peer_wake_me+0x7b/0x240 net/unix/af_unix.c:437 unix_dgram_poll+0x38e/0x3c0 net/unix/af_unix.c:2664 sock_poll+0xed/0x250 net/socket.c:1256 vfs_poll include/linux/poll.h:90 [inline] ep_item_poll.isra.0+0x90/0x190 fs/eventpoll.c:892 ep_send_events_proc+0x113/0x590 fs/eventpoll.c:1749 ep_scan_ready_list.constprop.0+0x189/0x500 fs/eventpoll.c:704 ep_send_events fs/eventpoll.c:1793 [inline] ep_poll+0xe3/0x900 fs/eventpoll.c:1930 do_epoll_wait+0x162/0x180 fs/eventpoll.c:2294 __do_sys_epoll_wait fs/eventpoll.c:2304 [inline] __se_sys_epoll_wait fs/eventpoll.c:2301 [inline] __x64_sys_epoll_wait+0x5e/0x80 fs/eventpoll.c:2301 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 5173 Comm: syz-executor.0 Not tainted 5.4.0-rc3+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2019/11/04 00:24 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | b35fad31 | .config | console log | report | ci2-upstream-kcsan-gce |