smb/server: fix invalid pointer dereference in ksmbd_stop_durable_scavenger()

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See the procedure below:

  ksmbd_launch_ksmbd_durable_scavenger
    durable_scavenger_running = true
    server_conf.dh_task = kthread_run() // fail, dh_task is an ERR_PTR()

  server_ctrl_handle_reset
    ksmbd_stop_durable_scavenger
    kthread_stop(server_conf.dh_task) // invalid pointer

Fixes: d484d621d4 ("ksmbd: add durable scavenger timer")
Signed-off-by: ZhangGuoDong <zhangguodong@kylinos.cn>
Reviewed-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>

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ZhangGuoDong 2026-07-31 11:50:05 +00:00 • committed by Namjae Jeon

parent 3ce2f94919

commit bef46b6047

1 changed files with 4 additions and 1 deletions

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fs/smb/server/vfs_cache.c

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