KCSAN: data-race in isotp_sendmsg / isotp

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in isotp_sendmsg / isotp_sendmsg (6) can	6	2	603d	615d	0/29	auto-obsoleted due to no activity on 2024/06/23 13:44
upstream	KCSAN: data-race in isotp_sendmsg / isotp_sendmsg (7) can	6	3	523d	547d	0/29	auto-obsoleted due to no activity on 2024/09/11 12:09
upstream	KCSAN: data-race in isotp_sendmsg / isotp_sendmsg can	6	1	1523d	1523d	0/29	auto-closed as invalid on 2021/12/16 09:51
upstream	KCSAN: data-race in isotp_sendmsg / isotp_sendmsg (5) can	6	3	796d	826d	0/29	auto-obsoleted due to no activity on 2023/12/13 23:05
upstream	KCSAN: data-race in isotp_sendmsg / isotp_sendmsg (8) can	6	1	218d	218d	0/29	auto-obsoleted due to no activity on 2025/08/03 08:02
upstream	KCSAN: data-race in isotp_sendmsg / isotp_sendmsg (2) can	6	1	1401d	1401d	0/29	auto-closed as invalid on 2022/04/17 15:57
upstream	KCSAN: data-race in isotp_sendmsg / isotp_sendmsg (4) can	6	1	890d	890d	0/29	auto-obsoleted due to no activity on 2023/09/10 09:53

================================================================== BUG: KCSAN: data-race in isotp_sendmsg / isotp_sendmsg write to 0xffff88813da324b4 of 4 bytes by task 10319 on cpu 0: isotp_sendmsg+0x3b1/0xc70 net/can/isotp.c:1123 sock_sendmsg_nosec net/socket.c:724 [inline] sock_sendmsg net/socket.c:747 [inline] ____sys_sendmsg+0x375/0x4c0 net/socket.c:2503 ___sys_sendmsg net/socket.c:2557 [inline] __sys_sendmsg+0x1e3/0x270 net/socket.c:2586 __do_sys_sendmsg net/socket.c:2595 [inline] __se_sys_sendmsg net/socket.c:2593 [inline] __x64_sys_sendmsg+0x46/0x50 net/socket.c:2593 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff88813da324b4 of 4 bytes by task 10323 on cpu 1: isotp_sendmsg+0x213/0xc70 net/can/isotp.c:963 sock_sendmsg_nosec net/socket.c:724 [inline] sock_sendmsg net/socket.c:747 [inline] ____sys_sendmsg+0x375/0x4c0 net/socket.c:2503 ___sys_sendmsg net/socket.c:2557 [inline] __sys_sendmsg+0x1e3/0x270 net/socket.c:2586 __do_sys_sendmsg net/socket.c:2595 [inline] __se_sys_sendmsg net/socket.c:2593 [inline] __x64_sys_sendmsg+0x46/0x50 net/socket.c:2593 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x00000001 -> 0x00000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 10323 Comm: syz-executor.5 Not tainted 6.4.0-rc4-syzkaller-00204-gc43a6ff9f93f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 ==================================================================