41 lines
1.2 KiB
Diff
41 lines
1.2 KiB
Diff
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From e6127d30663daef7cb847265006b592eebbfc152 Mon Sep 17 00:00:00 2001
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From: Peiyang Wang <wangpeiyang1@huawei.com>
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Date: Tue, 20 Aug 2024 17:02:33 +0800
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Subject: [PATCH 13/27] hikptool: nic: check path before used it in function
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hikp_get_dir_name_of_device
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check path before used it in hikp_get_dir_name_of_device
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Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com>
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---
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net/hikp_net_lib.c | 8 ++++++--
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1 file changed, 6 insertions(+), 2 deletions(-)
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diff --git a/net/hikp_net_lib.c b/net/hikp_net_lib.c
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index 32b278b..4e1e305 100644
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--- a/net/hikp_net_lib.c
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+++ b/net/hikp_net_lib.c
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@@ -238,13 +238,17 @@ int get_revision_id_by_bdf(const struct bdf_t *bdf, char *revision_id, size_t id
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static int hikp_get_dir_name_of_device(const char *path, size_t len, char *dir_name)
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{
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+ char file_path[PATH_MAX] = { 0 }; /* PATH_MAX includes the \0 so +1 is not required */
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struct dirent *ptr;
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DIR *dir = NULL;
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- if (len > PCI_MAX_DIR_NAME_LEN)
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+ if (len > PCI_MAX_DIR_NAME_LEN || strlen(path) > PATH_MAX)
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return -EINVAL;
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- dir = opendir(path);
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+ if (!realpath(path, file_path))
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+ return -errno;
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+
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+ dir = opendir(file_path);
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if (dir == NULL) {
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HIKP_ERROR_PRINT("read path %s fail.\n", path);
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return -EINVAL;
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--
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2.45.0.windows.1
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