CVE-2024-47736: Linux kernel · erofs: handle overlapped pclusters out of crafted images properly
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 10 Nov 2026, 14:49 UTC
Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 21 Oct 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
AI-suggested
A fix has been implemented in the Linux kernel to properly handle overlapped pclusters in crafted erofs images by falling back to temporary short-lived pages and reverting part of a previous commit for simplicity. Users should update to the fixed Linux kernel version once available. No additional mitigation steps are indicated or required for normal filesystem images.
Description
CVE-2024-47736 is a vulnerability in the Linux kernel's erofs filesystem driver where crafted images with overlapped pclusters can cause task hangs due to deadlocks. The issue arises from improper handling of overlapped physical clusters in crafted filesystem images, which are not possible in normal images. The vulnerability leads to unexpected BIO waits and complications in managing compressed data folios.
References
- git.kernel.org/stable/c/c1172e65aad4b115392ea4c6e61e56e5b9b69df4 (opens in a new tab)
- git.kernel.org/stable/c/1bf7e414cac303c9aec1be67872e19be8b64980c (opens in a new tab)
- git.kernel.org/stable/c/b9b30af0e86ffb485301ecd83b9129c9dfb7ebf8 (opens in a new tab)
- git.kernel.org/stable/c/9cfa199bcbbbba31cbf97b2786f44f4464f3f29a (opens in a new tab)
- git.kernel.org/stable/c/9e2f9d34dd12e6e5b244ec488bcebd0c2d566c50 (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-082556.html (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-019113.html (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-457936.html (opens in a new tab)