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KCSAN: data-race in __dev_change_flags / is_upper_ndev_bond_master_filter (8)

Status: auto-obsoleted due to no activity on 2022/12/07 07:34
Subsystems: net
[Documentation on labels]
First crash: 620d, last: 620d
Similar bugs (8)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KCSAN: data-race in __dev_change_flags / is_upper_ndev_bond_master_filter (6) net 4 811d 829d 0/27 auto-closed as invalid on 2022/05/30 09:44
upstream KCSAN: data-race in __dev_change_flags / is_upper_ndev_bond_master_filter (7) net 5 682d 738d 0/27 auto-closed as invalid on 2022/10/06 05:34
upstream KCSAN: data-race in __dev_change_flags / is_upper_ndev_bond_master_filter net 1 1461d 1461d 0/27 auto-closed as invalid on 2020/08/18 04:32
upstream KCSAN: data-race in __dev_change_flags / is_upper_ndev_bond_master_filter (4) net 1 1194d 1194d 0/27 auto-closed as invalid on 2021/05/12 19:57
upstream KCSAN: data-race in __dev_change_flags / is_upper_ndev_bond_master_filter (3) net 4 1270d 1311d 0/27 auto-closed as invalid on 2021/02/25 18:39
upstream KCSAN: data-race in __dev_change_flags / is_upper_ndev_bond_master_filter (2) net 1 1372d 1372d 0/27 auto-closed as invalid on 2020/11/15 22:09
upstream KCSAN: data-race in __dev_change_flags / is_upper_ndev_bond_master_filter (5) net 16 878d 967d 0/27 auto-closed as invalid on 2022/03/24 08:25
upstream KCSAN: data-race in __dev_change_flags / is_upper_ndev_bond_master_filter (9) net 63 1d15h 10d 0/27 upstream: reported on 2024/07/04 15:07

Sample crash report:
==================================================================
BUG: KCSAN: data-race in __dev_change_flags / is_upper_ndev_bond_master_filter

read-write to 0xffff8881451ff0c0 of 4 bytes by task 7760 on cpu 1:
 __dev_change_flags+0x9e/0x3f0 net/core/dev.c:8517
 rtnl_configure_link net/core/rtnetlink.c:3190 [inline]
 rtnl_newlink_create net/core/rtnetlink.c:3372 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3581 [inline]
 rtnl_newlink+0x1249/0x16a0 net/core/rtnetlink.c:3594
 rtnetlink_rcv_msg+0x811/0x8d0 net/core/rtnetlink.c:6091
 netlink_rcv_skb+0x13e/0x240 net/netlink/af_netlink.c:2540
 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x58a/0x660 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x666/0x760 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 ____sys_sendmsg+0x38f/0x500 net/socket.c:2482
 ___sys_sendmsg net/socket.c:2536 [inline]
 __sys_sendmsg+0x19a/0x230 net/socket.c:2565
 __do_sys_sendmsg net/socket.c:2574 [inline]
 __se_sys_sendmsg net/socket.c:2572 [inline]
 __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff8881451ff0c0 of 4 bytes by task 4398 on cpu 0:
 netif_is_bond_master include/linux/netdevice.h:4990 [inline]
 is_upper_ndev_bond_master_filter+0x27/0xb0 drivers/infiniband/core/roce_gid_mgmt.c:275
 ib_enum_roce_netdev+0x12e/0x1e0 drivers/infiniband/core/device.c:2303
 ib_enum_all_roce_netdevs+0xa4/0x110 drivers/infiniband/core/device.c:2332
 netdevice_event_work_handler+0x157/0x3c0 drivers/infiniband/core/roce_gid_mgmt.c:627
 process_one_work+0x3d3/0x720 kernel/workqueue.c:2289
 worker_thread+0x618/0xa70 kernel/workqueue.c:2436
 kthread+0x1a9/0x1e0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

value changed: 0x00001002 -> 0x0000c1a7

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 4398 Comm: kworker/u4:1 Tainted: G        W          6.1.0-rc3-syzkaller-00035-gf526d6a82242-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Workqueue: gid-cache-wq netdevice_event_work_handler
==================================================================

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/11/02 07:24 upstream f526d6a82242 08977f5d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in __dev_change_flags / is_upper_ndev_bond_master_filter
* Struck through repros no longer work on HEAD.