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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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|---|---|---|
| .. | ||
| ipmi_bt_sm.c | ||
| ipmi_devintf.c | ||
| ipmi_kcs_sm.c | ||
| ipmi_msghandler.c | ||
| ipmi_poweroff.c | ||
| ipmi_si_intf.c | ||
| ipmi_si_sm.h | ||
| ipmi_smic_sm.c | ||
| ipmi_watchdog.c | ||
| Kconfig | ||
| Makefile | ||