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authorHeikki Orsila <shd@jolt.modeemi.cs.tut.fi>2006-04-19 01:21:55 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-04-19 12:13:52 -0400
commit3fb0cb5d0f8b915a75677e8e8e4a4a4e481f03f7 (patch)
tree8b1306cc288c0d700ff23a88b26c8d7656fc8d6c /README
parentaa1e816fc92215f94bdfd90107baae8fdc2440d1 (diff)
[PATCH] Open IPMI BT overflow
I was looking into random driver code and found a suspicious looking memcpy() in drivers/char/ipmi/ipmi_bt_sm.c on 2.6.17-rc1: if ((size < 2) || (size > IPMI_MAX_MSG_LENGTH)) return -1; ... memcpy(bt->write_data + 3, data + 1, size - 1); where sizeof bt->write_data is IPMI_MAX_MSG_LENGTH. It looks like the memcpy would overflow by 2 bytes if size == IPMI_MAX_MSG_LENGTH. A patch attached to limit size to (IPMI_MAX_LENGTH - 2). Cc: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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