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================================================================== BUG: KCSAN: data-race in sock_setsockopt / udp_sendmsg read to 0xffff888084f94268 of 2 bytes by task 32516 on cpu 0: ipcm_init_sk include/net/ip.h:92 [inline] udp_sendmsg+0x2f2/0x1900 net/ipv4/udp.c:1042 inet_sendmsg+0x6d/0x90 net/ipv4/af_inet.c:807 sock_sendmsg_nosec net/socket.c:639 [inline] sock_sendmsg+0x9f/0xc0 net/socket.c:659 ____sys_sendmsg+0x212/0x4d0 net/socket.c:2330 ___sys_sendmsg+0xb5/0x100 net/socket.c:2384 __sys_sendmmsg+0x123/0x350 net/socket.c:2474 __do_sys_sendmmsg net/socket.c:2503 [inline] __se_sys_sendmmsg net/socket.c:2500 [inline] __x64_sys_sendmmsg+0x64/0x80 net/socket.c:2500 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 write to 0xffff888084f94268 of 2 bytes by task 32514 on cpu 1: sock_setsockopt+0x4b1/0x1850 net/core/sock.c:958 __sys_setsockopt+0x34b/0x370 net/socket.c:2113 __do_sys_setsockopt net/socket.c:2133 [inline] __se_sys_setsockopt net/socket.c:2130 [inline] __x64_sys_setsockopt+0x70/0x90 net/socket.c:2130 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 32514 Comm: syz-executor.5 Not tainted 5.5.0-rc1-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/01/31 13:04 | https://github.com/google/ktsan.git kcsan | 245a43005292 | 5ed23f9a | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/12/03 16:46 | https://github.com/google/ktsan.git kcsan | ef798c30ba4e | ab342da3 | .config | console log | report | ci2-upstream-kcsan-gce |