Bug#586557: linux-2.6 - btrfs module consideres device names stable
Source: linux-2.6
Version: 2.6.32-1
Severity: important
Forwarded: https://bugzilla.kernel.org/show_bug.cgi?id=16259
btrfs uses a in-kernel uuid to device translation. This leads to a DoS
in case of changed device names, which can happen all the time.
| device fsid 6746742515f05f59-7702ee31ff5c53ac devid 1 transid 130 /dev/sde
| open /dev/sdd failed
| # file -s /dev/sde
| /dev/sde: BTRFS Filesystem sectorsize 4096, nodesize 4096, leafsize 4096)
| # file -s /dev/sdd
| /dev/sdd: x86 boot sector; partition 1: ID=0x83, starthead 1, startsector 63, 625137282 sectors, extended partition table (last)\011, code offset 0x0
Bastian
--
War is never imperative.
-- McCoy, "Balance of Terror", stardate 1709.2
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