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| author | Wang Nan <wangnan0@huawei.com> | 2014-05-04 21:03:53 +0800 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2014-05-11 09:21:52 +0900 |
| commit | e7c0f537f725272543561c781f699d8048f29c19 (patch) | |
| tree | 801e4a1f3ec964533d71084c2710d1422022a4f7 | |
| parent | 608d94f71271e1cf1e3bce6532955cd7625fc956 (diff) | |
| download | kexec-tools-e7c0f537f725272543561c781f699d8048f29c19.tar.gz | |
zImage-arm: init modified_cmdline with zero
This patch memset modified_cmdline after it alloced.
Without this patch, the header of command line always contains random
value like following example:
kernel: 0x765fd008 kernel_size: 0x23b610
memory range: [0x60000000 - 0x6fffffff] (256M)
memory range: [0x78000000 - 0x9fffffff] (640M)
...
kernel command line: "°¥氥䐶# elfcorehdr=0x77f00000 mem=130048K"
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Geng Hui <hui.geng@huawei.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
| -rw-r--r-- | kexec/arch/arm/kexec-zImage-arm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kexec/arch/arm/kexec-zImage-arm.c b/kexec/arch/arm/kexec-zImage-arm.c index 6aa98b3..bc99e79 100644 --- a/kexec/arch/arm/kexec-zImage-arm.c +++ b/kexec/arch/arm/kexec-zImage-arm.c @@ -373,6 +373,8 @@ int zImage_arm_load(int argc, char **argv, const char *buf, off_t len, if (!modified_cmdline) return -1; + memset(modified_cmdline, '\0', COMMAND_LINE_SIZE); + if (command_line) { (void) strncpy(modified_cmdline, command_line, COMMAND_LINE_SIZE); |