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| author | Thomas Jarosch <thomas.jarosch@intra2net.com> | 2011-10-29 15:45:56 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2011-11-08 12:35:29 +0000 |
| commit | 617d1017545c27a56229483cc1d689eff6c38561 (patch) | |
| tree | 12a4bcd783cf2071f5a6ae8c1ac061fb7c66a5a6 /arch/mips | |
| parent | 1ea6b8f48918282bdca0b32a34095504ee65bab5 (diff) | |
| download | linux-617d1017545c27a56229483cc1d689eff6c38561.tar.gz linux-617d1017545c27a56229483cc1d689eff6c38561.tar.bz2 linux-617d1017545c27a56229483cc1d689eff6c38561.zip | |
MIPS: Yosemite, Emma: Fix off-by-two in arcs_cmdline buffer size check
Cause is a misplaced bracket.
The code
strlen(buf+1)
will be two bytes less than
strlen(buf)+1
The +1 is in this code to reserve space for an additional space character.
[ralf@linux-mips.org: Thomas' original patch fixed the issue only for
Yosemite but the same bug exists also in Emma.]
Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Patchwork: https://patchwork.linux-mips.org/patch/2861/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/emma/common/prom.c | 2 | ||||
| -rw-r--r-- | arch/mips/pmc-sierra/yosemite/prom.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/mips/emma/common/prom.c b/arch/mips/emma/common/prom.c index 708f08761406..cae42259d6da 100644 --- a/arch/mips/emma/common/prom.c +++ b/arch/mips/emma/common/prom.c @@ -50,7 +50,7 @@ void __init prom_init(void) /* arg[0] is "g", the rest is boot parameters */ for (i = 1; i < argc; i++) { - if (strlen(arcs_cmdline) + strlen(arg[i] + 1) + if (strlen(arcs_cmdline) + strlen(arg[i]) + 1 >= sizeof(arcs_cmdline)) break; strcat(arcs_cmdline, arg[i]); diff --git a/arch/mips/pmc-sierra/yosemite/prom.c b/arch/mips/pmc-sierra/yosemite/prom.c index cf4c868715ac..dcc926e06fce 100644 --- a/arch/mips/pmc-sierra/yosemite/prom.c +++ b/arch/mips/pmc-sierra/yosemite/prom.c @@ -102,7 +102,7 @@ void __init prom_init(void) /* Get the boot parameters */ for (i = 1; i < argc; i++) { - if (strlen(arcs_cmdline) + strlen(arg[i] + 1) >= + if (strlen(arcs_cmdline) + strlen(arg[i]) + 1 >= sizeof(arcs_cmdline)) break; |