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================================================================== BUG: KCSAN: data-race in __skb_try_recv_datagram / do_recvmmsg write to 0xffff88812982d230 of 4 bytes by task 19527 on cpu 0: do_recvmmsg+0x923/0x9e0 net/socket.c:2761 __sys_recvmmsg net/socket.c:2786 [inline] __do_sys_recvmmsg net/socket.c:2807 [inline] __se_sys_recvmmsg net/socket.c:2800 [inline] __x64_sys_recvmmsg+0xe6/0x150 net/socket.c:2800 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88812982d230 of 4 bytes by task 19535 on cpu 1: sock_error include/net/sock.h:2267 [inline] __skb_try_recv_datagram+0x47/0x310 net/core/datagram.c:252 __skb_recv_datagram net/core/datagram.c:297 [inline] skb_recv_datagram+0xab/0x150 net/core/datagram.c:317 netlink_recvmsg+0x68/0x760 net/netlink/af_netlink.c:1950 sock_recvmsg_nosec net/socket.c:888 [inline] sock_recvmsg net/socket.c:906 [inline] __sys_recvfrom+0x1d7/0x2a0 net/socket.c:2034 __do_sys_recvfrom net/socket.c:2052 [inline] __se_sys_recvfrom net/socket.c:2048 [inline] __x64_sys_recvfrom+0x74/0x90 net/socket.c:2048 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 19535 Comm: syz-executor.3 Not tainted 5.13.0-rc2-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/05/17 18:32 | upstream | d07f6ca923ea | a2eb125d | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in __skb_try_recv_datagram / do_recvmmsg | |||
2021/05/06 15:11 | upstream | 8404c9fbc84b | 06585184 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in __skb_try_recv_datagram / do_recvmmsg | |||
2021/04/28 02:42 | upstream | e359bce39d90 | 805b5003 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in __skb_try_recv_datagram / do_recvmmsg | |||
2021/04/26 04:19 | upstream | d2d09fbe33f8 | 2a82f1b3 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in __skb_try_recv_datagram / do_recvmmsg | |||
2021/04/23 15:30 | upstream | 18a3c5f7abfd | 17f0b706 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in __skb_try_recv_datagram / do_recvmmsg | |||
2021/04/21 17:55 | upstream | 1fe5501ba1ab | 95777977 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in __skb_try_recv_datagram / do_recvmmsg |