Vulnerability Details CVE-2021-47088
In the Linux kernel, the following vulnerability has been resolved:
mm/damon/dbgfs: protect targets destructions with kdamond_lock
DAMON debugfs interface iterates current monitoring targets in
'dbgfs_target_ids_read()' while holding the corresponding
'kdamond_lock'. However, it also destructs the monitoring targets in
'dbgfs_before_terminate()' without holding the lock. This can result in
a use_after_free bug. This commit avoids the race by protecting the
destruction with the corresponding 'kdamond_lock'.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 4.7%
CVSS Severity
CVSS v3 Score 7.0
References
Products affected by CVE-2021-47088
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cpe:2.3:o:linux:linux_kernel:5.15
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cpe:2.3:o:linux:linux_kernel:5.15.0
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cpe:2.3:o:linux:linux_kernel:5.15.0-58
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cpe:2.3:o:linux:linux_kernel:5.15.1
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cpe:2.3:o:linux:linux_kernel:5.15.10
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cpe:2.3:o:linux:linux_kernel:5.15.11
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cpe:2.3:o:linux:linux_kernel:5.15.2
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cpe:2.3:o:linux:linux_kernel:5.15.3
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cpe:2.3:o:linux:linux_kernel:5.15.4
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cpe:2.3:o:linux:linux_kernel:5.15.5
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cpe:2.3:o:linux:linux_kernel:5.15.6
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cpe:2.3:o:linux:linux_kernel:5.15.7
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cpe:2.3:o:linux:linux_kernel:5.15.8
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cpe:2.3:o:linux:linux_kernel:5.15.9
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cpe:2.3:o:linux:linux_kernel:5.16