From: gregkh@suse.de Date: Wed, 11 May 2005 22:29:30 +0000 (-0700) Subject: [PATCH] fix Linux kernel ELF core dump privilege elevation X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a1dbebb632300c22c0b68d248ea9b8991537a586;p=thirdparty%2Fkernel%2Fstable.git [PATCH] fix Linux kernel ELF core dump privilege elevation As reported by Paul Starzetz Reference: CAN-2005-1263 Signed-off-by: Greg Kroah-Hartman --- diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index bfb61679080db..24f6ea075cf2a 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -257,7 +257,7 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr * exec, } /* Populate argv and envp */ - p = current->mm->arg_start; + p = current->mm->arg_end = current->mm->arg_start; while (argc-- > 0) { size_t len; __put_user((elf_addr_t)p, argv++); @@ -1279,7 +1279,7 @@ static void fill_prstatus(struct elf_prstatus *prstatus, static int fill_psinfo(struct elf_prpsinfo *psinfo, struct task_struct *p, struct mm_struct *mm) { - int i, len; + unsigned int i, len; /* first copy the parameters from user space */ memset(psinfo, 0, sizeof(struct elf_prpsinfo));