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Drivers: misc: fix out-of-bounds access in function param_set_kgdbts_var
authorYoung Xiao <YangX92@hotmail.com>
Fri, 12 Apr 2019 07:45:06 +0000 (15:45 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 19 Jun 2019 06:20:56 +0000 (08:20 +0200)
commitf6c7e6460d7f5e0147a7253b8edd62217d3b48e3
treed6cb715ea815063eb49eed4976b3a941a7d43ee8tree | snapshot (tar.gz zip)
parent80afb5209b59a032fac66c9d1cd3d8d87794e3cdcommit | diff
Drivers: misc: fix out-of-bounds access in function param_set_kgdbts_var

[ Upstream commit b281218ad4311a0342a40cb02fb17a363df08b48 ]

There is an out-of-bounds access to "config[len - 1]" array when the
variable "len" is zero.

See commit dada6a43b040 ("kgdboc: fix KASAN global-out-of-bounds bug
in param_set_kgdboc_var()") for details.

Signed-off-by: Young Xiao <YangX92@hotmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/misc/kgdbts.c diff | blob | blame | history