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mlibc/getifaddrs: fix use of non zerod memory

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Matheus
2026-04-23 16:03:34 -03:00
parent 6678472362
commit 60e0d4eaae
1 changed files with 17 additions and 13 deletions
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patches/mlibc/jinx-working-patch.patch
+17 -13
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@@ -224,7 +224,7 @@ index 07dbe11..3ece6ec 100644
constexpr bool logLdPath = false;
constexpr bool logSymbolVersions = false;
diff --git mlibc-clean/sysdeps/astral/generic/generic.cpp mlibc-workdir/sysdeps/astral/generic/generic.cpp
index 939925e..7841cfe 100644
index 939925e..f8f8c8f 100644
--- mlibc-clean/sysdeps/astral/generic/generic.cpp
+++ mlibc-workdir/sysdeps/astral/generic/generic.cpp
@@ -1,4 +1,5 @@
@@ -250,7 +250,7 @@ index 939925e..7841cfe 100644
namespace mlibc {
int sys_setgroups(size_t size, const gid_t *list) {
@@ -31,13 +42,212 @@ namespace mlibc {
@@ -31,13 +42,216 @@ namespace mlibc {
return 0;
}
@@ -374,7 +374,7 @@ index 939925e..7841cfe 100644
+ if (error)
+ continue;
+
+ astral_net_info_t net_info;
+ astral_net_info_t net_info = {};
+ int r;
+ error = sys_ioctl(fd, 0x1337631, &net_info, &r);
+ if (error) {
@@ -382,7 +382,7 @@ index 939925e..7841cfe 100644
+ continue;
+ }
+
+ struct ifaddrs *next = (struct ifaddrs *)malloc(sizeof(struct ifaddrs));
+ struct ifaddrs *next = (struct ifaddrs *)calloc(1, sizeof(struct ifaddrs));
+ __ensure(next);
+
+ next->ifa_next = list;
@@ -396,13 +396,17 @@ index 939925e..7841cfe 100644
+ __ensure(next->ifa_addr);
+ memcpy(next->ifa_addr, &net_info.addr, sizeof(struct sockaddr));
+
+ next->ifa_netmask = (struct sockaddr *)malloc(sizeof(struct sockaddr));
+ __ensure(next->ifa_netmask);
+ memcpy(next->ifa_netmask, &net_info.netmask, sizeof(struct sockaddr));
+ if (net_info.netmask.sa_family) {
+ next->ifa_netmask = (struct sockaddr *)malloc(sizeof(struct sockaddr));
+ __ensure(next->ifa_netmask);
+ memcpy(next->ifa_netmask, &net_info.netmask, sizeof(struct sockaddr));
+ }
+
+ next->ifa_broadaddr = (struct sockaddr *)malloc(sizeof(struct sockaddr));
+ __ensure(next->ifa_broadaddr);
+ memcpy(next->ifa_broadaddr, &net_info.broadaddr, sizeof(struct sockaddr));
+ if (net_info.broadaddr.sa_family) {
+ next->ifa_broadaddr = (struct sockaddr *)malloc(sizeof(struct sockaddr));
+ __ensure(next->ifa_broadaddr);
+ memcpy(next->ifa_broadaddr, &net_info.broadaddr, sizeof(struct sockaddr));
+ }
+
+ next->ifa_data = nullptr;
+
@@ -466,7 +470,7 @@ index 939925e..7841cfe 100644
}
int sys_inet_configured(bool *ipv4, bool *ipv6) {
@@ -47,6 +257,71 @@ namespace mlibc {
@@ -47,6 +261,71 @@ namespace mlibc {
return 0;
}
@@ -538,7 +542,7 @@ index 939925e..7841cfe 100644
int sys_readv(int fd, const struct iovec *iovs, int iovc, ssize_t *bytes_read) {
long r;
int error = syscall(SYSCALL_READV, &r, fd, (uint64_t)iovs, iovc);
@@ -489,6 +764,7 @@ namespace mlibc {
@@ -489,6 +768,7 @@ namespace mlibc {
int sys_setsockopt(int fd, int layer, int number, const void *buffer, socklen_t size) {
long ret;
@@ -546,7 +550,7 @@ index 939925e..7841cfe 100644
return syscall(SYSCALL_SETSOCKOPT, &ret, fd, layer, number, (uint64_t)buffer, size);
}
@@ -932,4 +1208,13 @@ namespace mlibc {
@@ -932,4 +1212,13 @@ namespace mlibc {
*nanos = ts.tv_nsec;
return err;
}