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Red Hat Bugzilla – Attachment 148062 Details for
Bug 228706
[RHEL4] [patch] cid-11 Avoid static buffer overruns in debugfs
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[patch]
Patch correcting array usage in ls_dir_proc
e2fsprogs-1.35-debugfs_ls_name.patch (text/plain), 959 bytes, created by
Bryn M. Reeves
on 2007-02-14 16:18:01 UTC
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Description:
Patch correcting array usage in ls_dir_proc
Filename:
MIME Type:
Creator:
Bryn M. Reeves
Created:
2007-02-14 16:18:01 UTC
Size:
959 bytes
patch
obsolete
>Coverity ID: 11: Overrun Static > >Add an extra byte to EXT2_NAME_LEN in the static allocation for the >required trailing null. This allows filenames up to the maximum >length of EXT2_NAME_LEN withover an overrun. > >Index: e2fsprogs+chaos/debugfs/ls.c >=================================================================== >--- e2fsprogs+chaos.orig/debugfs/ls.c >+++ e2fsprogs+chaos/debugfs/ls.c >@@ -52,14 +52,14 @@ static int list_dir_proc(ext2_ino_t dir > ext2_ino_t ino; > struct tm *tm_p; > time_t modtime; >- char name[EXT2_NAME_LEN]; >+ char name[EXT2_NAME_LEN + 1]; > char tmp[EXT2_NAME_LEN + 16]; > char datestr[80]; > char lbr, rbr; > int thislen; > struct list_dir_struct *ls = (struct list_dir_struct *) private; > >- thislen = ((dirent->name_len & 0xFF) < EXT2_NAME_LEN) ? >+ thislen = ((dirent->name_len & 0xFF) <= EXT2_NAME_LEN) ? > (dirent->name_len & 0xFF) : EXT2_NAME_LEN; > strncpy(name, dirent->name, thislen); > name[thislen] = '\0';
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