[PATCH 0/2] [SRU] [X,B:linux] CVE-2018-13095

Tim Gardner tim.gardner at canonical.com
Wed Mar 10 21:18:34 UTC 2021


[Impact]
An issue was discovered in fs/xfs/libxfs/xfs_inode_buf.c in the Linux kernel
through 4.17.3. A denial of service (memory corruption and BUG) can occur
for a corrupted xfs image upon encountering an inode that is in extent
format, but has more extents than fit in the inode fork.

[Test Case]
iozone -a, misc rsync's

[Potential regression]
There appears to be little chance of data corruption. The bigger chance is that
some file reads/writes may be refused.




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