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Linux kernel ext4_put_super dump_orphan_list Data Compromise

🗓️ 27 Jan 2020 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec
 bdu_fstec🔗 bdu.fstec.ru👁 14 Views

Linux ext4 put_super and dump_orphan_list have use-after-free, enabling remote data exposure when mounting ext4 images.

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Tenable Nessus		AlmaLinux 8 : kernel (ALSA-2020:4431)
9 Feb 202200:00
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Tenable Nessus		CentOS 8 : kernel (CESA-2020:4431)
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Tenable Nessus		CentOS 7 : kernel-alt (RHSA-2020:2104)
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Tenable Nessus		Debian DLA-2114-1 : linux-4.9 security update
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20 Jan 2026 00:00Current
6.9Medium risk
Vulners AI Score6.9
CVSS 26.8
CVSS 37.8
EPSS0.03523
linux kernelext4 file systemuse after freeremote attackermounting ext4 imagesdata exposure
14