Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in skb_queue_tail / unix_dgram_peer_wake_me net | 1 | 1162d | 1162d | 0/26 | auto-closed as invalid on 2021/04/09 00:48 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in skb_queue_tail / unix_dgram_peer_wake_me net | 1 | 1162d | 1162d | 0/26 | auto-closed as invalid on 2021/04/09 00:48 |
================================================================== BUG: KCSAN: data-race in skb_queue_tail / unix_dgram_peer_wake_me write to 0xffff88812bf914e0 of 4 bytes by task 19246 on cpu 1: __skb_insert include/linux/skbuff.h:1933 [inline] __skb_queue_before include/linux/skbuff.h:2038 [inline] __skb_queue_tail include/linux/skbuff.h:2071 [inline] skb_queue_tail+0x80/0xa0 net/core/skbuff.c:3242 unix_dgram_sendmsg+0xff2/0x1610 net/unix/af_unix.c:1798 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg net/socket.c:674 [inline] ____sys_sendmsg+0x360/0x4d0 net/socket.c:2350 ___sys_sendmsg net/socket.c:2404 [inline] __sys_sendmmsg+0x315/0x4b0 net/socket.c:2490 __do_sys_sendmmsg net/socket.c:2519 [inline] __se_sys_sendmmsg net/socket.c:2516 [inline] __x64_sys_sendmmsg+0x53/0x60 net/socket.c:2516 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88812bf914e0 of 4 bytes by task 19264 on cpu 0: skb_queue_len include/linux/skbuff.h:1864 [inline] unix_recvq_full net/unix/af_unix.c:194 [inline] unix_dgram_peer_wake_me+0x19c/0x310 net/unix/af_unix.c:441 unix_dgram_poll+0x2f3/0x3e0 net/unix/af_unix.c:2726 sock_poll+0x23e/0x260 net/socket.c:1246 vfs_poll include/linux/poll.h:90 [inline] ep_item_poll fs/eventpoll.c:846 [inline] ep_send_events fs/eventpoll.c:1683 [inline] ep_poll fs/eventpoll.c:1798 [inline] do_epoll_wait+0x6ad/0xf00 fs/eventpoll.c:2226 __do_sys_epoll_wait fs/eventpoll.c:2238 [inline] __se_sys_epoll_wait fs/eventpoll.c:2233 [inline] __x64_sys_epoll_wait+0xf6/0x120 fs/eventpoll.c:2233 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x0000001e -> 0x00000001 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 19264 Comm: syz-executor.4 Not tainted 5.13.0-rc6-syzkaller #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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/06/17 12:50 | upstream | 70585216fe77 | aba2b2fb | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in skb_queue_tail / unix_dgram_peer_wake_me |