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CVE-2024-38583

nilfs2: fix use-after-free of timer for log writer thread PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 before 822ae5a8eac30478578a75f7e064f0584931bf2d; affected fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 before 82933c84f188dcfe89eb26b0b48ab5d1ca99d164; affected fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 before 67fa90d4a2ccd9ebb0e1e168c7d0b5d0cf3c7148; affected fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 before e65ccf3a4de4f0c763d94789615b83e11f204438; affected fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 before 86a30d6302deddb9fb97ba6fc4b04d0e870b582a; affected fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 before f9186bba4ea282b07293c1c892441df3a5441cb0; affected fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 before 2f12b2c03c5dae1a0de0a9e5853177e3d6eee3c6; affected fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 before 68e738be5c518fc3c4e9146b66f67c8fee0135fb; affected fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 before f5d4e04634c9cf68bdf23de08ada0bb92e8befe7
Linux / Linuxaffected 2.6.35; unaffected 0 before 2.6.35; unaffected 4.19.316 through 4.19.*; unaffected 5.4.278 through 5.4.*; unaffected 5.10.219 through 5.10.*; unaffected 5.15.161 through 5.15.*; unaffected 6.1.94 through 6.1.*; unaffected 6.6.33 through 6.6.*; unaffected 6.8.12 through 6.8.*; unaffected 6.9.3 through 6.9.*; unaffected 6.10 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CVE

No English description supplied.

CISA-ADP

No English description supplied.

No references supplied.