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Btrfs:__add_inode_ref: out of bounds memory read when looking for extended ref.
authorQuentin Casasnovas <quentin.casasnovas@oracle.com>
Tue, 3 Mar 2015 15:31:38 +0000 (16:31 +0100)
committerJiri Slaby <jslaby@suse.cz>
Thu, 12 Mar 2015 16:31:11 +0000 (17:31 +0100)
commit377121bbc802ab818dcb028547e5c4440006f15f
treeece146e4dcce1501bc6a07321a8380a187a0a1e3tree
parentcf21763462327a33d67d9225561958d170a8a4dacommit | diff
Btrfs:__add_inode_ref: out of bounds memory read when looking for extended ref.

commit dd9ef135e3542ffc621c4eb7f0091870ec7a1504 upstream.

Improper arithmetics when calculting the address of the extended ref could
lead to an out of bounds memory read and kernel panic.

Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
fs/btrfs/tree-log.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git