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| author | Gabor Juhos <juhosg@openwrt.org> | 2012-09-27 20:05:42 +0000 |
|---|---|---|
| committer | Gabor Juhos <juhosg@openwrt.org> | 2012-09-27 20:05:42 +0000 |
| commit | 170cd7a19a76556e3e07eec82b3848b552f007b8 (patch) | |
| tree | 26f7470931fcb98de2cc0c8659abf0acfe51d32a /target | |
| parent | a0df3fa315dd3480cbfd709ae690dd8b2b02be36 (diff) | |
| download | upstream-170cd7a19a76556e3e07eec82b3848b552f007b8.tar.gz upstream-170cd7a19a76556e3e07eec82b3848b552f007b8.tar.bz2 upstream-170cd7a19a76556e3e07eec82b3848b552f007b8.zip | |
ar71xx: avoid possible NULL pointer dereference in ath79_init_{,local}_mac
SVN-Revision: 33575
Diffstat (limited to 'target')
| -rw-r--r-- | target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c b/target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c index d2d0ee87f0..4487958bc7 100644 --- a/target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c +++ b/target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c @@ -992,7 +992,10 @@ void __init ath79_init_mac(unsigned char *dst, const unsigned char *src, { int t; - if (!is_valid_ether_addr(src)) { + if (!dst) + return; + + if (!src || !is_valid_ether_addr(src)) { memset(dst, '\0', ETH_ALEN); return; } @@ -1012,7 +1015,10 @@ void __init ath79_init_local_mac(unsigned char *dst, const unsigned char *src) { int i; - if (!is_valid_ether_addr(src)) { + if (!dst) + return; + + if (!src || !is_valid_ether_addr(src)) { memset(dst, '\0', ETH_ALEN); return; } |