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authorGreg Kroah-Hartman <gregkh@suse.de>2005-05-11 03:10:44 -0400
committerGreg KH <gregkh@suse.de>2005-05-17 00:07:05 -0400
commita84a505956f5c795a9ab3d60d97b6b91a27aa571 (patch)
tree440fdf47fcddf8b0d615667b418981a511d16e30 /fs
parentd3f0fcec2d50a18a84c4f3dd7683206ed37ca009 (diff)
[PATCH] fix Linux kernel ELF core dump privilege elevation
As reported by Paul Starzetz <ihaquer@isec.pl> Reference: CAN-2005-1263 Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs')
-rw-r--r--fs/binfmt_elf.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index ce9423bb2de3..c374be51b041 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -251,7 +251,7 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr * exec,
251 } 251 }
252 252
253 /* Populate argv and envp */ 253 /* Populate argv and envp */
254 p = current->mm->arg_start; 254 p = current->mm->arg_end = current->mm->arg_start;
255 while (argc-- > 0) { 255 while (argc-- > 0) {
256 size_t len; 256 size_t len;
257 __put_user((elf_addr_t)p, argv++); 257 __put_user((elf_addr_t)p, argv++);
@@ -1301,7 +1301,7 @@ static void fill_prstatus(struct elf_prstatus *prstatus,
1301static int fill_psinfo(struct elf_prpsinfo *psinfo, struct task_struct *p, 1301static int fill_psinfo(struct elf_prpsinfo *psinfo, struct task_struct *p,
1302 struct mm_struct *mm) 1302 struct mm_struct *mm)
1303{ 1303{
1304 int i, len; 1304 unsigned int i, len;
1305 1305
1306 /* first copy the parameters from user space */ 1306 /* first copy the parameters from user space */
1307 memset(psinfo, 0, sizeof(struct elf_prpsinfo)); 1307 memset(psinfo, 0, sizeof(struct elf_prpsinfo));