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Store the loopback device as data on loopback grub_disk structures,

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rather than the file it points to.  This fixes use of freed memory
if an existing loopback device is replaced.

* grub-core/disk/loopback.c (grub_loopback_open): Store dev in
disk->data, not dev->file.
(grub_loopback_read): Adjust file assignment to match.
Fixes Ubuntu bug #742967.
This commit is contained in:
Colin Watson 2011-04-01 17:04:10 +01:00
parent 186ae367af
commit 2cccc747ac
2 changed files with 13 additions and 2 deletions
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@ -1,3 +1,14 @@
2011-04-01 Colin Watson <cjwatson@ubuntu.com>
Store the loopback device as data on loopback grub_disk structures,
rather than the file it points to. This fixes use of freed memory
if an existing loopback device is replaced.
* grub-core/disk/loopback.c (grub_loopback_open): Store dev in
disk->data, not dev->file.
(grub_loopback_read): Adjust file assignment to match.
Fixes Ubuntu bug #742967.
2011-04-01 Colin Watson <cjwatson@ubuntu.com>
* grub-core/disk/loopback.c (grub_cmd_loopback): Fix a memory leak