Unrated severityNVD Advisory· Published Sep 12, 2007· Updated Jun 16, 2026
CVE-2007-4849
CVE-2007-4849
Description
JFFS2, as used on One Laptop Per Child (OLPC) build 542 and possibly other Linux systems, when POSIX ACL support is enabled, does not properly store permissions during (1) inode creation or (2) ACL setting, which might allow local users to access restricted files or directories after a remount of a filesystem, related to "legacy modes" and an inconsistency between dentry permissions and inode permissions.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- cpe:2.3:a:one_laptop_per_child:olpc_linux:build_542:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
10- dev.laptop.org/ticket/2732nvd
- git.infradead.orgnvd
- lists.infradead.org/pipermail/linux-mtd-cvs/2007-August/005897.htmlnvd
- secunia.com/advisories/26978nvd
- secunia.com/advisories/28170nvd
- secunia.com/advisories/28706nvd
- www.debian.org/security/2007/dsa-1378nvd
- www.securityfocus.com/bid/25838nvd
- www.ubuntu.com/usn/usn-558-1nvd
- www.ubuntu.com/usn/usn-574-1nvd
News mentions
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