diff options
Diffstat (limited to 'gnu/packages/patches/chicken-CVE-2017-6949.patch')
| -rw-r--r-- | gnu/packages/patches/chicken-CVE-2017-6949.patch | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/gnu/packages/patches/chicken-CVE-2017-6949.patch b/gnu/packages/patches/chicken-CVE-2017-6949.patch deleted file mode 100644 index 00552eec76..0000000000 --- a/gnu/packages/patches/chicken-CVE-2017-6949.patch +++ /dev/null @@ -1,132 +0,0 @@ -From: LemonBoy <thatlemon@gmail.com> -Date: Fri, 10 Mar 2017 16:29:47 +0100 -Subject: [PATCH] Add bound checking to all srfi-4 vector allocations. - -Do what C_allocate_vector already does and prevent the creation of a -vector that's too big or too small. -We should be very careful to avoid the latter case because the -allocation size is directly fed into `malloc' as 'x + sizeof(C_header)' -thus making possible to successfully allocate a vector smaller than the -C_header structure and get C_block_header_init to write over -uninitialized memory. - -To reduce code duplication, type checking is moved from each of the -make-*vector procedures to the common "alloc" helper procedure. - -Signed-off-by: Peter Bex <peter@more-magic.net> -Signed-off-by: Kooda <kooda@upyum.com> ---- - srfi-4.scm | 34 +++++++++++++++------------------- - 1 file changed, 15 insertions(+), 19 deletions(-) - -diff --git a/srfi-4.scm b/srfi-4.scm -index 7f5412b..69f58ba 100644 ---- a/srfi-4.scm -+++ b/srfi-4.scm -@@ -255,24 +255,28 @@ EOF - - ;;; Basic constructors: - --(let* ([ext-alloc -- (foreign-lambda* scheme-object ([int bytes]) -- "C_word *buf = (C_word *)C_malloc(bytes + sizeof(C_header));" -+(let* ((ext-alloc -+ (foreign-lambda* scheme-object ((size_t bytes)) -+ "C_word *buf;" -+ "if (bytes > C_HEADER_SIZE_MASK) C_return(C_SCHEME_FALSE);" -+ "buf = (C_word *)C_malloc(bytes + sizeof(C_header));" - "if(buf == NULL) C_return(C_SCHEME_FALSE);" - "C_block_header_init(buf, C_make_header(C_BYTEVECTOR_TYPE, bytes));" -- "C_return(buf);") ] -- [ext-free -- (foreign-lambda* void ([scheme-object bv]) -- "C_free((void *)C_block_item(bv, 1));") ] -- [alloc -+ "C_return(buf);") ) -+ (ext-free -+ (foreign-lambda* void ((scheme-object bv)) -+ "C_free((void *)C_block_item(bv, 1));") ) -+ (alloc - (lambda (loc len ext?) -+ (##sys#check-exact len loc) -+ (when (fx< len 0) (##sys#error loc "size is negative" len)) - (if ext? -- (let ([bv (ext-alloc len)]) -+ (let ((bv (ext-alloc len))) - (or bv - (##sys#error loc "not enough memory - cannot allocate external number vector" len)) ) -- (let ([bv (##sys#allocate-vector len #t #f #t)]) ; this could be made better... -+ (let ((bv (##sys#allocate-vector len #t #f #t))) ; this could be made better... - (##core#inline "C_string_to_bytevector" bv) -- bv) ) ) ] ) -+ bv) ) ) ) ) - - (set! release-number-vector - (lambda (v) -@@ -282,7 +286,6 @@ EOF - - (set! make-u8vector - (lambda (len #!optional (init #f) (ext? #f) (fin? #t)) -- (##sys#check-exact len 'make-u8vector) - (let ((v (##sys#make-structure 'u8vector (alloc 'make-u8vector len ext?)))) - (when (and ext? fin?) (set-finalizer! v ext-free)) - (if (not init) -@@ -295,7 +298,6 @@ EOF - - (set! make-s8vector - (lambda (len #!optional (init #f) (ext? #f) (fin? #t)) -- (##sys#check-exact len 'make-s8vector) - (let ((v (##sys#make-structure 's8vector (alloc 'make-s8vector len ext?)))) - (when (and ext? fin?) (set-finalizer! v ext-free)) - (if (not init) -@@ -308,7 +310,6 @@ EOF - - (set! make-u16vector - (lambda (len #!optional (init #f) (ext? #f) (fin? #t)) -- (##sys#check-exact len 'make-u16vector) - (let ((v (##sys#make-structure 'u16vector (alloc 'make-u16vector (##core#inline "C_fixnum_shift_left" len 1) ext?)))) - (when (and ext? fin?) (set-finalizer! v ext-free)) - (if (not init) -@@ -321,7 +322,6 @@ EOF - - (set! make-s16vector - (lambda (len #!optional (init #f) (ext? #f) (fin? #t)) -- (##sys#check-exact len 'make-s16vector) - (let ((v (##sys#make-structure 's16vector (alloc 'make-s16vector (##core#inline "C_fixnum_shift_left" len 1) ext?)))) - (when (and ext? fin?) (set-finalizer! v ext-free)) - (if (not init) -@@ -334,7 +334,6 @@ EOF - - (set! make-u32vector - (lambda (len #!optional (init #f) (ext? #f) (fin? #t)) -- (##sys#check-exact len 'make-u32vector) - (let ((v (##sys#make-structure 'u32vector (alloc 'make-u32vector (##core#inline "C_fixnum_shift_left" len 2) ext?)))) - (when (and ext? fin?) (set-finalizer! v ext-free)) - (if (not init) -@@ -347,7 +346,6 @@ EOF - - (set! make-s32vector - (lambda (len #!optional (init #f) (ext? #f) (fin? #t)) -- (##sys#check-exact len 'make-s32vector) - (let ((v (##sys#make-structure 's32vector (alloc 'make-s32vector (##core#inline "C_fixnum_shift_left" len 2) ext?)))) - (when (and ext? fin?) (set-finalizer! v ext-free)) - (if (not init) -@@ -360,7 +358,6 @@ EOF - - (set! make-f32vector - (lambda (len #!optional (init #f) (ext? #f) (fin? #t)) -- (##sys#check-exact len 'make-f32vector) - (let ((v (##sys#make-structure 'f32vector (alloc 'make-f32vector (##core#inline "C_fixnum_shift_left" len 2) ext?)))) - (when (and ext? fin?) (set-finalizer! v ext-free)) - (if (not init) -@@ -375,7 +372,6 @@ EOF - - (set! make-f64vector - (lambda (len #!optional (init #f) (ext? #f) (fin? #t)) -- (##sys#check-exact len 'make-f64vector) - (let ((v (##sys#make-structure - 'f64vector - (alloc 'make-f64vector (##core#inline "C_fixnum_shift_left" len 3) ext?)))) --- -2.1.4 - |