diff options
Diffstat (limited to 'meta/recipes-extended/ltp/ltp/0001-syscalls-ioctl_ns05.c-ioctl_ns06.c-Fix-too-small-buf.patch')
| -rw-r--r-- | meta/recipes-extended/ltp/ltp/0001-syscalls-ioctl_ns05.c-ioctl_ns06.c-Fix-too-small-buf.patch | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/meta/recipes-extended/ltp/ltp/0001-syscalls-ioctl_ns05.c-ioctl_ns06.c-Fix-too-small-buf.patch b/meta/recipes-extended/ltp/ltp/0001-syscalls-ioctl_ns05.c-ioctl_ns06.c-Fix-too-small-buf.patch new file mode 100644 index 0000000000..08b88a38f3 --- /dev/null +++ b/meta/recipes-extended/ltp/ltp/0001-syscalls-ioctl_ns05.c-ioctl_ns06.c-Fix-too-small-buf.patch @@ -0,0 +1,59 @@ +From af2b6f5ee6b171078b18246dd73f71cf6e350859 Mon Sep 17 00:00:00 2001 +From: Marius Hillenbrand <mhillen@linux.ibm.com> +Date: Mon, 19 Jul 2021 13:58:35 +0800 +Subject: [PATCH] syscalls/ioctl_ns05.c, ioctl_ns06.c: Fix too small buffer for + path + +commit af2b6f5ee6b171078b18246dd73f71cf6e350859 upstream. + +Resize the buffer used for paths into /proc/ to grant enough space +for long PIDs. While at it, replace sprintf with snprintf to avoid +buffer overflows if we ever ran out of space again. + +Fixes: #847 +Signed-off-by: Marius Hillenbrand <mhillen@linux.ibm.com> +Reviewed-by: Yang Xu <xuyang2018.jy@fujitsu.com> +Upstream-Status: Backport +Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> + +diff --git a/testcases/kernel/syscalls/ioctl/ioctl_ns05.c b/testcases/kernel/syscalls/ioctl/ioctl_ns05.c +index a67ddbe2c66f..52613810c7ce 100644 +--- a/testcases/kernel/syscalls/ioctl/ioctl_ns05.c ++++ b/testcases/kernel/syscalls/ioctl/ioctl_ns05.c +@@ -59,10 +59,10 @@ static void run(void) + if (pid == -1) + tst_brk(TBROK | TERRNO, "ltp_clone failed"); + +- char child_namespace[20]; ++ char child_namespace[30]; + int my_fd, child_fd, parent_fd; + +- sprintf(child_namespace, "/proc/%i/ns/pid", pid); ++ snprintf(child_namespace, sizeof(child_namespace), "/proc/%i/ns/pid", pid); + my_fd = SAFE_OPEN("/proc/self/ns/pid", O_RDONLY); + child_fd = SAFE_OPEN(child_namespace, O_RDONLY); + parent_fd = ioctl(child_fd, NS_GET_PARENT); +diff --git a/testcases/kernel/syscalls/ioctl/ioctl_ns06.c b/testcases/kernel/syscalls/ioctl/ioctl_ns06.c +index b6ac80208d02..c30f7de91e09 100644 +--- a/testcases/kernel/syscalls/ioctl/ioctl_ns06.c ++++ b/testcases/kernel/syscalls/ioctl/ioctl_ns06.c +@@ -51,14 +51,14 @@ static int child(void *arg LTP_ATTRIBUTE_UNUSED) + + static void run(void) + { +- char child_namespace[20]; ++ char child_namespace[30]; + + pid_t pid = ltp_clone(CLONE_NEWUSER | SIGCHLD, &child, 0, + STACK_SIZE, child_stack); + if (pid == -1) + tst_brk(TBROK | TERRNO, "ltp_clone failed"); + +- sprintf(child_namespace, "/proc/%i/ns/user", pid); ++ snprintf(child_namespace, sizeof(child_namespace), "/proc/%i/ns/user", pid); + int my_fd, child_fd, parent_fd; + + my_fd = SAFE_OPEN("/proc/self/ns/user", O_RDONLY); +-- +2.32.0 + |