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[bot] AutoMerging: merge all upstream's changes:
* https://github.com/coolsnowwolf/lede: rockchip: unlock rk3568 cpu freq 2.0Ghz uboot-rockchip: refresh rk3328 rkbin verdor atf (coolsnowwolf#9903) target: add silicon mk place holder uboot-rockchip: add rk3568 board support arm-trusted-firmware-rockchip-vendor: add rk3568/rk3588 rkbin verdor atf arm-trusted-firmware-rockchip-vendor: bump to v2022-08-01 phy: update RK3568 rockchip-snps-pcie3 fw when init zlib: backport fix for heap-based buffer over-read (CVE-2022-37434) generic: 5.15: disable CONFIG_DEBUG_INFO_REDUCED symbol
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,32 @@ | ||
From eff308af425b67093bab25f80f1ae950166bece1 Mon Sep 17 00:00:00 2001 | ||
From: Mark Adler <fork@madler.net> | ||
Date: Sat, 30 Jul 2022 15:51:11 -0700 | ||
Subject: [PATCH] Fix a bug when getting a gzip header extra field with | ||
inflate(). | ||
|
||
If the extra field was larger than the space the user provided with | ||
inflateGetHeader(), and if multiple calls of inflate() delivered | ||
the extra header data, then there could be a buffer overflow of the | ||
provided space. This commit assures that provided space is not | ||
exceeded. | ||
--- | ||
inflate.c | 5 +++-- | ||
1 file changed, 3 insertions(+), 2 deletions(-) | ||
|
||
diff --git a/inflate.c b/inflate.c | ||
index 7be8c6366..7a7289749 100644 | ||
--- a/inflate.c | ||
+++ b/inflate.c | ||
@@ -763,9 +763,10 @@ int flush; | ||
copy = state->length; | ||
if (copy > have) copy = have; | ||
if (copy) { | ||
+ len = state->head->extra_len - state->length; | ||
if (state->head != Z_NULL && | ||
- state->head->extra != Z_NULL) { | ||
- len = state->head->extra_len - state->length; | ||
+ state->head->extra != Z_NULL && | ||
+ len < state->head->extra_max) { | ||
zmemcpy(state->head->extra + len, next, | ||
len + copy > state->head->extra_max ? | ||
state->head->extra_max - len : copy); |
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