Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in __ip4_datagram_connect / skb_set_owner_w (2) net | 1 | 1261d | 1249d | 20/28 | fixed on 2021/11/10 00:50 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in __ip4_datagram_connect / skb_set_owner_w (2) net | 1 | 1261d | 1249d | 20/28 | fixed on 2021/11/10 00:50 |
================================================================== BUG: KCSAN: data-race in __ip4_datagram_connect / skb_set_owner_w write to 0xffff888043ca120c of 4 bytes by task 30434 on cpu 0: sk_set_txhash include/net/sock.h:1921 [inline] __ip4_datagram_connect+0x722/0x790 net/ipv4/datagram.c:75 __ip6_datagram_connect+0x559/0x900 net/ipv6/datagram.c:189 ip6_datagram_connect+0x2a/0x40 net/ipv6/datagram.c:272 inet_dgram_connect+0x115/0x200 net/ipv4/af_inet.c:577 __sys_connect_file net/socket.c:1835 [inline] __sys_connect+0x245/0x280 net/socket.c:1852 __do_sys_connect net/socket.c:1862 [inline] __se_sys_connect net/socket.c:1859 [inline] __x64_sys_connect+0x3d/0x50 net/socket.c:1859 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff888043ca120c of 4 bytes by task 30440 on cpu 1: skb_set_hash_from_sk include/net/sock.h:2188 [inline] skb_set_owner_w+0x10d/0x210 net/core/sock.c:2087 sock_alloc_send_pskb+0x452/0x4e0 net/core/sock.c:2351 sock_alloc_send_skb+0x2d/0x40 net/core/sock.c:2365 __ip6_append_data+0x1758/0x2080 net/ipv6/ip6_output.c:1581 ip6_make_skb+0x258/0x420 net/ipv6/ip6_output.c:1944 udpv6_sendmsg+0x1544/0x17e0 net/ipv6/udp.c:1527 inet6_sendmsg+0x5f/0x80 net/ipv6/af_inet6.c:638 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg net/socket.c:672 [inline] ____sys_sendmsg+0x352/0x4c0 net/socket.c:2345 ___sys_sendmsg net/socket.c:2399 [inline] __sys_sendmmsg+0x335/0x4b0 net/socket.c:2489 __do_sys_sendmmsg net/socket.c:2518 [inline] __se_sys_sendmmsg net/socket.c:2515 [inline] __x64_sys_sendmmsg+0x53/0x60 net/socket.c:2515 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 30440 Comm: syz-executor.0 Not tainted 5.10.0-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/12/27 09:27 | upstream | f838f8d2b694 | 821e0b09 | .config | console log | report | info | ci2-upstream-kcsan-gce |