==================================================================
BUG: KCSAN: data-race in do_sendfile / ksys_write
write to 0xffff888152df4b40 of 8 bytes by task 4289 on cpu 0:
do_sendfile+0x76b/0x980 fs/read_write.c:1269
__do_sys_sendfile64 fs/read_write.c:1316 [inline]
__se_sys_sendfile64 fs/read_write.c:1308 [inline]
__x64_sys_sendfile64+0xbd/0x150 fs/read_write.c:1308
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
write to 0xffff888152df4b40 of 8 bytes by task 4280 on cpu 1:
ksys_write+0x11e/0x1a0 fs/read_write.c:639
__do_sys_write fs/read_write.c:649 [inline]
__se_sys_write fs/read_write.c:646 [inline]
__x64_sys_write+0x42/0x50 fs/read_write.c:646
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
value changed: 0x0000000000000000 -> 0x00000000000000bf
Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 4280 Comm: syz-executor.0 Not tainted 6.7.0-rc4-syzkaller-00384-gb10a3ccaf6e3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
==================================================================
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.