A flaw was found in the way Linux kernel's Journaling Block Device (JBD) handled invalid log first block value. An attacker able to mount malicious ext3 or ext4 image could use this flaw to crash the system. Upstream commit: 8762202dd0d6e46854f786bdb6fb3780a1625efe
Created kernel tracking bugs for this issue Affects: fedora-all [bug 753346]
Statement: This issue affects the Linux kernel as shipped with Red Hat Enterprise Linux 4, 5, 6, and Red Hat Enterprise MRG. This has been addressed in Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2012-0007.html, https://rhn.redhat.com/errata/RHSA-2012-0350.html, and https://rhn.redhat.com/errata/RHSA-2012-0010.html. Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates.
kernel-2.6.35.14-106.fc14 has been pushed to the Fedora 14 stable repository. If problems still persist, please make note of it in this bug report.
This issue has been addressed in following products: Red Hat Enterprise Linux 5 Via RHSA-2012:0007 https://rhn.redhat.com/errata/RHSA-2012-0007.html
This issue has been addressed in following products: MRG for RHEL-6 v.2 Via RHSA-2012:0010 https://rhn.redhat.com/errata/RHSA-2012-0010.html
This issue has been addressed in following products: MRG for RHEL-6 v.2 Via RHSA-2012:0333 https://rhn.redhat.com/errata/RHSA-2012-0333.html
This issue has been addressed in following products: Red Hat Enterprise Linux 6 Via RHSA-2012:0350 https://rhn.redhat.com/errata/RHSA-2012-0350.html