CVE-2024-38583

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.

• linux linux kernel (>= 2.6.35 < 4.19.316) • linux linux kernel (>= 4.20 < 5.4.278) • linux linux kernel (>= 5.5 < 5.10.219) • linux linux kernel (>= 5.11 < 5.15.161) • linux linux kernel (>= 5.16 < 6.1.94) • linux linux kernel (>= 6.2 < 6.6.33) • linux linux kernel (>= 6.7 < 6.8.12) • linux linux kernel (>= 6.9 < 6.9.3)