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https://review.lineageos.org/q/topic:P_asb_2022-05 https://review.lineageos.org/q/topic:P_asb_2022-06 https://review.lineageos.org/q/topic:P_asb_2022-07 https://review.lineageos.org/q/topic:P_asb_2022-08 https://review.lineageos.org/q/topic:P_asb_2022-09 https://review.lineageos.org/q/topic:P_asb_2022-10 https://review.lineageos.org/q/topic:P_asb_2022-11 https://review.lineageos.org/q/topic:P_asb_2022-12 https://review.lineageos.org/q/topic:P_asb_2023-01 https://review.lineageos.org/q/topic:P_asb_2023-02 https://review.lineageos.org/q/topic:P_asb_2023-03 https://review.lineageos.org/q/topic:P_asb_2023-04 https://review.lineageos.org/q/topic:P_asb_2023-05 https://review.lineageos.org/q/topic:P_asb_2023-06 https://review.lineageos.org/q/topic:P_asb_2023-07 accounted for via manifest change: https://review.lineageos.org/c/LineageOS/android_external_freetype/+/361250 https://review.lineageos.org/q/topic:P_asb_2023-08 accounted for via manifest change: https://review.lineageos.org/c/LineageOS/android_external_freetype/+/364606 accounted for via patches: https://review.lineageos.org/c/LineageOS/android_system_ca-certificates/+/365328 https://review.lineageos.org/q/topic:P_asb_2023-09 https://review.lineageos.org/q/topic:P_asb_2023-10 https://review.lineageos.org/q/topic:P_asb_2023-11 accounted for via patches: https://review.lineageos.org/c/LineageOS/android_system_ca-certificates/+/374916 https://review.lineageos.org/q/topic:P_asb_2023-12 https://review.lineageos.org/q/topic:P_asb_2024-01 https://review.lineageos.org/q/topic:P_asb_2024-02 https://review.lineageos.org/q/topic:P_asb_2024-03 https://review.lineageos.org/q/topic:P_asb_2024-04 Signed-off-by: Tavi <tavi@divested.dev>
30 lines
1.1 KiB
Diff
30 lines
1.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Sadaf Ebrahimi <sadafebrahimi@google.com>
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Date: Thu, 2 Jun 2022 19:32:22 +0000
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Subject: [PATCH] Prevent XML_GetBuffer signed integer overflow
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Bug: http://b/221255869
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Change-Id: I38758fae8c71184f728f95e6073457cdb86bcc29
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(cherry picked from commit d6a09f1b7fb24dd03dc58e45062ad951a37ff8e3)
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Merged-In: I38758fae8c71184f728f95e6073457cdb86bcc29
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---
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lib/xmlparse.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/lib/xmlparse.c b/lib/xmlparse.c
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index 67f661b5..1d6e722d 100644
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--- a/lib/xmlparse.c
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+++ b/lib/xmlparse.c
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@@ -2040,6 +2040,11 @@ XML_GetBuffer(XML_Parser parser, int len)
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keep = (int)(parser->m_bufferPtr - parser->m_buffer);
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if (keep > XML_CONTEXT_BYTES)
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keep = XML_CONTEXT_BYTES;
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+ /* Detect and prevent integer overflow */
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+ if (keep > INT_MAX - neededSize) {
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+ parser->m_errorCode = XML_ERROR_NO_MEMORY;
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+ return NULL;
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+ }
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neededSize += keep;
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#endif /* defined XML_CONTEXT_BYTES */
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if (neededSize <= parser->m_bufferLim - parser->m_buffer) {
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