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CVE-2011-4086

The journal_unmap_buffer function in fs/jbd2/transaction.c in the Linux kernel before 3.3.1 does not properly handle the _Delay and _Unwritten buffer head stat…

Impact

The journal_unmap_buffer function in fs/jbd2/transaction.c in the Linux kernel before 3.3.1 does not properly handle the _Delay and _Unwritten buffer head states, which allows local users to cause a denial of service (system crash) by leveraging the presence of an ext4 filesystem that was mounted with a journal.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
through 3.3
Versions 3.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4

Weakness classification

CWE-119

References