| Description: | In the Linux kernel, the following vulnerability has been resolved:
nilfs2: fix use-after-free of timer for log writer thread Patch series
"nilfs2: fix log writer related issues". This bug fix series covers
three nilfs2 log writer-related issues, including a timer use-after-
free issue and potential deadlock issue on unmount, and a potential
freeze issue in event synchronization found during their analysis.
Details are described in each commit log. This patch (of 3): A use-
after-free issue has been reported regarding the timer sc_timer on the
nilfs_sc_info structure. The problem is that even though it is used to
wake up a sleeping log writer thread, sc_timer is not shut down until
the nilfs_sc_info structure is about to be freed, and is used
regardless of the thread's lifetime. Fix this issue by limiting the
use of sc_timer only while the log writer thread is alive.
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