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UBI: fix use-after-free on error path
authorArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
Thu, 5 Jan 2012 08:47:18 +0000 (10:47 +0200)
committerGreg Kroah-Hartman <gregkh@suse.de>
Thu, 26 Jan 2012 00:13:17 +0000 (16:13 -0800)
commit50bc9144d4c0e15a6fcdc1b7a5accb7e2cd4aa11
treee81bd6dd405d9f7ea7648e9947afe6e7d59dc096tree | snapshot
parent73461014f2de68f1dbca13897af0feb77872b8f5commit | diff
UBI: fix use-after-free on error path

commit e57e0d8e818512047fe379157c3f77f1b9fabffb upstream.

When we fail to erase a PEB, we free the corresponding erase entry object,
but then re-schedule this object if the error code was something like -EAGAIN.
Obviously, it is a bug to use the object after we have freed it.

Reported-by: Emese Revfy <re.emese@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/mtd/ubi/wl.c diff | blob | history
Domain: System / Uncategorized;