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THREAT OPS › Threat News › [NVD] CVE-2021-47335 (MEDIUM 5.5) — In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid racing on fsync_entry_slab by multi filesystem instances As syzbot reported, there is an use-after-free issue during f2fs recovery: Use-after-free write at 0xffff88823bc16040 (in kfence-#10)

[NVD] CVE-2021-47335 (MEDIUM 5.5) — In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid racing on fsync_entry_slab by multi filesystem instances As syzbot reported, there is an use-after-free issue during f2fs recovery: Use-after-free write at 0xffff88823bc16040 (in kfence-#10)

lownvdPublished 2024-05-21

CVE-2021-47335 CVSS: 5.5 MEDIUM Published: 2024-05-21T15:15:20.350

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix to avoid racing on fsync_entry_slab by multi filesystem instances

As syzbot reported, there is an use-after-free issue during f2fs recovery:

Use-after-free write at 0xffff88823bc16040 (in kfence-#10): kmem_cache_destroy+0x1f/0x120 mm/slab_common.c:48

Indicators of compromise

Original source: https://nvd.nist.gov/vuln/detail/CVE-2021-47335