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BUG: KCSAN: data-race in sg_common_write / sg_finish_rem_req

write to 0xffff8881410a931d of 1 bytes by task 21158 on cpu 1:
 sg_unlink_reserve drivers/scsi/sg.c:2067 [inline]
 sg_finish_rem_req+0x117/0x260 drivers/scsi/sg.c:1849
 sg_rq_end_io_usercontext+0x36/0x1c0 drivers/scsi/sg.c:1306
 process_one_work kernel/workqueue.c:2630 [inline]
 process_scheduled_works+0x5b8/0xa30 kernel/workqueue.c:2703
 worker_thread+0x525/0x730 kernel/workqueue.c:2784
 kthread+0x1d7/0x210 kernel/kthread.c:388
 ret_from_fork+0x48/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

read to 0xffff8881410a931d of 1 bytes by task 28832 on cpu 0:
 sg_start_req drivers/scsi/sg.c:1789 [inline]
 sg_common_write+0x666/0x8e0 drivers/scsi/sg.c:803
 sg_new_write+0x827/0x8e0 drivers/scsi/sg.c:770
 sg_ioctl_common drivers/scsi/sg.c:935 [inline]
 sg_ioctl+0xe24/0x1870 drivers/scsi/sg.c:1160
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xcf/0x140 fs/ioctl.c:857
 __x64_sys_ioctl+0x43/0x50 fs/ioctl.c:857
 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: 0x01 -> 0x00

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 28832 Comm: syz-executor.5 Tainted: G        W          6.6.0-rc6-syzkaller-00182-gce55c22ec8b2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
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