diff --git a/libarchive/0001-libarchive-Handle-a-calloc-returning-NULL-fixes-1754.patch b/libarchive/0001-libarchive-Handle-a-calloc-returning-NULL-fixes-1754.patch
new file mode 100644
index 0000000..42adecb
--- /dev/null
+++ b/libarchive/0001-libarchive-Handle-a-calloc-returning-NULL-fixes-1754.patch
@@ -0,0 +1,35 @@
+From bff38efe8c110469c5080d387bec62a6ca15b1a5 Mon Sep 17 00:00:00 2001
+From: obiwac <obiwac@gmail.com>
+Date: Fri, 22 Jul 2022 22:41:10 +0200
+Subject: [PATCH] libarchive: Handle a `calloc` returning NULL (fixes #1754)
+
+---
+ libarchive/archive_write.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/libarchive/archive_write.c b/libarchive/archive_write.c
+index 66592e82..27626b54 100644
+--- a/libarchive/archive_write.c
++++ b/libarchive/archive_write.c
+@@ -201,6 +201,10 @@ __archive_write_allocate_filter(struct archive *_a)
+ 	struct archive_write_filter *f;
+ 
+ 	f = calloc(1, sizeof(*f));
++
++	if (f == NULL)
++		return (NULL);
++
+ 	f->archive = _a;
+ 	f->state = ARCHIVE_WRITE_FILTER_STATE_NEW;
+ 	if (a->filter_first == NULL)
+@@ -548,6 +552,10 @@ archive_write_open2(struct archive *_a, void *client_data,
+ 	a->client_data = client_data;
+ 
+ 	client_filter = __archive_write_allocate_filter(_a);
++
++	if (client_filter == NULL)
++		return (ARCHIVE_FATAL);
++
+ 	client_filter->open = archive_write_client_open;
+ 	client_filter->write = archive_write_client_write;
+ 	client_filter->close = archive_write_client_close;
diff --git a/libarchive/0002-Validate-entry_bytes_remaining-in-pax_attribute.patch b/libarchive/0002-Validate-entry_bytes_remaining-in-pax_attribute.patch
new file mode 100644
index 0000000..9414f9c
--- /dev/null
+++ b/libarchive/0002-Validate-entry_bytes_remaining-in-pax_attribute.patch
@@ -0,0 +1,42 @@
+From fc8c6d2786ecba731d77d33fe3b034f581fcbde3 Mon Sep 17 00:00:00 2001
+From: Ben Wagner <bungeman@chromium.org>
+Date: Tue, 19 Jul 2022 13:02:40 -0400
+Subject: [PATCH] Validate entry_bytes_remaining in pax_attribute
+
+The `size` attribute may contain a negative or too large value. Check
+the range of the `entry_bytes_remaining` in `pax_attribute` the same way
+as `header_common`. The test which is added passes both with and without
+this change in a normal debug build. It is necessary to run with
+`-fsanitize=undefined` to see that the undefined behavior is avoided.
+
+Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=48467
+---
+ libarchive/archive_read_support_format_tar.c  | 15 ++++++
+ 1 files changed, 15 insertions(+)
+
+diff --git a/libarchive/archive_read_support_format_tar.c b/libarchive/archive_read_support_format_tar.c
+index bfdad7f8..e31f1cc4 100644
+--- a/libarchive/archive_read_support_format_tar.c
++++ b/libarchive/archive_read_support_format_tar.c
+@@ -2108,6 +2108,21 @@ pax_attribute(struct archive_read *a, struct tar *tar,
+ 			/* "size" is the size of the data in the entry. */
+ 			tar->entry_bytes_remaining
+ 			    = tar_atol10(value, strlen(value));
++			if (tar->entry_bytes_remaining < 0) {
++				tar->entry_bytes_remaining = 0;
++				archive_set_error(&a->archive,
++				    ARCHIVE_ERRNO_MISC,
++				    "Tar size attribute is negative");
++				return (ARCHIVE_FATAL);
++			}
++			if (tar->entry_bytes_remaining == INT64_MAX) {
++				/* Note: tar_atol returns INT64_MAX on overflow */
++				tar->entry_bytes_remaining = 0;
++				archive_set_error(&a->archive,
++				    ARCHIVE_ERRNO_MISC,
++				    "Tar size attribute overflow");
++				return (ARCHIVE_FATAL);
++			}
+ 			/*
+ 			 * The "size" pax header keyword always overrides the
+ 			 * "size" field in the tar header.
diff --git a/libarchive/PKGBUILD-arch b/libarchive/PKGBUILD-arch
index e0b6fe7..cfce66c 100644
--- a/libarchive/PKGBUILD-arch
+++ b/libarchive/PKGBUILD-arch
@@ -3,7 +3,7 @@
 
 pkgname=libarchive
 pkgver=3.6.1
-pkgrel=1
+pkgrel=2
 pkgdesc='Multi-format archive and compression library'
 arch=('x86_64')
 url='https://libarchive.org/'
@@ -12,9 +12,20 @@ depends=('acl' 'libacl.so' 'bzip2' 'expat' 'lz4' 'openssl' 'xz' 'zlib' 'zstd')
 provides=('libarchive.so')
 options=('debug')
 validpgpkeys=('A5A45B12AD92D964B89EEE2DEC560C81CEC2276E') # Martin Matuska <mm@FreeBSD.org>
-source=("https://github.com/${pkgname}/${pkgname}/releases/download/v${pkgver}/${pkgname}-${pkgver}.tar.xz"{,.asc})
+source=("https://github.com/${pkgname}/${pkgname}/releases/download/v${pkgver}/${pkgname}-${pkgver}.tar.xz"{,.asc}
+        '0001-libarchive-Handle-a-calloc-returning-NULL-fixes-1754.patch'
+        '0002-Validate-entry_bytes_remaining-in-pax_attribute.patch')
 sha256sums=('5a411aceb978f43e626f0c2d1812ddd8807b645ed892453acabd532376c148e6'
-            'SKIP')
+            'SKIP'
+            'bc52b2b2b99915894b436c97872d5d50e94c8c7483865a028fad9a710c837fa7'
+            '38c8d9b00f3259558e67e6fdf790ccbf8ecbba2de101476c2416d87b1679bcb9')
+
+prepare() {
+  cd "${pkgname}-${pkgver}"
+
+  patch -Np1 < ../0001-libarchive-Handle-a-calloc-returning-NULL-fixes-1754.patch
+  patch -Np1 < ../0002-Validate-entry_bytes_remaining-in-pax_attribute.patch
+}
 
 build() {
   cd "${pkgname}-${pkgver}"