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authorCoprDistGit <infra@openeuler.org>2026-05-19 07:31:02 +0000
committerCoprDistGit <infra@openeuler.org>2026-05-19 07:31:02 +0000
commit9a57a5bc9947dd73cbe060a0584599f694ef9c4d (patch)
treeca517e733b8893655752783e36bd05e7b9dafcaa /backport-CVE-2026-27784.patch
parent84c38e44b89abd508b2c386dc7e6c13f30ec8cc8 (diff)
Diffstat (limited to 'backport-CVE-2026-27784.patch')
-rw-r--r--backport-CVE-2026-27784.patch81
1 files changed, 81 insertions, 0 deletions
diff --git a/backport-CVE-2026-27784.patch b/backport-CVE-2026-27784.patch
new file mode 100644
index 0000000..7a18951
--- /dev/null
+++ b/backport-CVE-2026-27784.patch
@@ -0,0 +1,81 @@
+From 3568812cf98dfd7661cd7516ecf9b398c134ab3c Mon Sep 17 00:00:00 2001
+From: Roman Arutyunyan <arut@nginx.com>
+Date: Mon, 2 Mar 2026 21:12:34 +0400
+Subject: [PATCH] Mp4: fixed possible integer overflow on 32-bit platforms.
+
+Previously, a 32-bit overflow could happen while validating atom entries
+count. This allowed processing of an invalid atom with entrires beyond
+its boundaries with reads and writes outside of the allocated mp4 buffer.
+
+Reported by Prabhav Srinath (sprabhav7).
+---
+ src/http/modules/ngx_http_mp4_module.c | 14 +++++++-------
+ 1 file changed, 7 insertions(+), 7 deletions(-)
+
+diff --git a/src/http/modules/ngx_http_mp4_module.c b/src/http/modules/ngx_http_mp4_module.c
+index 173d8ad541..678d6296c9 100644
+--- a/src/http/modules/ngx_http_mp4_module.c
++++ b/src/http/modules/ngx_http_mp4_module.c
+@@ -2297,7 +2297,7 @@ ngx_http_mp4_read_stts_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size)
+ "mp4 time-to-sample entries:%uD", entries);
+
+ if (ngx_mp4_atom_data_size(ngx_mp4_stts_atom_t)
+- + entries * sizeof(ngx_mp4_stts_entry_t) > atom_data_size)
++ + (uint64_t) entries * sizeof(ngx_mp4_stts_entry_t) > atom_data_size)
+ {
+ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0,
+ "\"%s\" mp4 stts atom too small", mp4->file.name.data);
+@@ -2612,7 +2612,7 @@ ngx_http_mp4_read_stss_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size)
+ atom->last = atom_table;
+
+ if (ngx_mp4_atom_data_size(ngx_http_mp4_stss_atom_t)
+- + entries * sizeof(uint32_t) > atom_data_size)
++ + (uint64_t) entries * sizeof(uint32_t) > atom_data_size)
+ {
+ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0,
+ "\"%s\" mp4 stss atom too small", mp4->file.name.data);
+@@ -2817,7 +2817,7 @@ ngx_http_mp4_read_ctts_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size)
+ atom->last = atom_table;
+
+ if (ngx_mp4_atom_data_size(ngx_mp4_ctts_atom_t)
+- + entries * sizeof(ngx_mp4_ctts_entry_t) > atom_data_size)
++ + (uint64_t) entries * sizeof(ngx_mp4_ctts_entry_t) > atom_data_size)
+ {
+ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0,
+ "\"%s\" mp4 ctts atom too small", mp4->file.name.data);
+@@ -2999,7 +2999,7 @@ ngx_http_mp4_read_stsc_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size)
+ "sample-to-chunk entries:%uD", entries);
+
+ if (ngx_mp4_atom_data_size(ngx_mp4_stsc_atom_t)
+- + entries * sizeof(ngx_mp4_stsc_entry_t) > atom_data_size)
++ + (uint64_t) entries * sizeof(ngx_mp4_stsc_entry_t) > atom_data_size)
+ {
+ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0,
+ "\"%s\" mp4 stsc atom too small", mp4->file.name.data);
+@@ -3393,7 +3393,7 @@ ngx_http_mp4_read_stsz_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size)
+
+ if (size == 0) {
+ if (ngx_mp4_atom_data_size(ngx_mp4_stsz_atom_t)
+- + entries * sizeof(uint32_t) > atom_data_size)
++ + (uint64_t) entries * sizeof(uint32_t) > atom_data_size)
+ {
+ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0,
+ "\"%s\" mp4 stsz atom too small",
+@@ -3552,7 +3552,7 @@ ngx_http_mp4_read_stco_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size)
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "chunks:%uD", entries);
+
+ if (ngx_mp4_atom_data_size(ngx_mp4_stco_atom_t)
+- + entries * sizeof(uint32_t) > atom_data_size)
++ + (uint64_t) entries * sizeof(uint32_t) > atom_data_size)
+ {
+ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0,
+ "\"%s\" mp4 stco atom too small", mp4->file.name.data);
+@@ -3768,7 +3768,7 @@ ngx_http_mp4_read_co64_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size)
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "chunks:%uD", entries);
+
+ if (ngx_mp4_atom_data_size(ngx_mp4_co64_atom_t)
+- + entries * sizeof(uint64_t) > atom_data_size)
++ + (uint64_t) entries * sizeof(uint64_t) > atom_data_size)
+ {
+ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0,
+ "\"%s\" mp4 co64 atom too small", mp4->file.name.data);