Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: b05fd50ce4ab18d1d6ba009364bb645ea43e354c
https://github.com/WebKit/WebKit/commit/b05fd50ce4ab18d1d6ba009364bb645ea43e354c
Author: David Kilzer <[email protected]>
Date: 2023-11-01 (Wed, 01 Nov 2023)
Changed paths:
M
Source/ThirdParty/libwebrtc/Source/webrtc/common_video/h265/h265_sps_parser.cc
M Source/ThirdParty/libwebrtc/Source/webrtc/rtc_base/bitstream_reader.cc
A
Source/ThirdParty/libwebrtc/WebKit/0001-Fix-integer-overflow-in-BitstreamReader-ReadBit-call.patch
Log Message:
-----------
Fix integer overflow in BitstreamReader::ReadBit called from
H265SpsParser::ParseSpsInternal
https://bugs.webkit.org/show_bug.cgi?id=264019
<rdar://117763685>
Reviewed by Jer Noble.
*
Source/ThirdParty/libwebrtc/Source/webrtc/common_video/h265/h265_sps_parser.cc:
(webrtc::H265SpsParser::ParseSpsInternal):
- Cap maximum value of log2_max_pic_order_cnt_lsb_minus4 that is later
passed to BitstreamReader::ConsumeBits() to prevent integer overflow.
* Source/ThirdParty/libwebrtc/Source/webrtc/rtc_base/bitstream_reader.cc:
(webrtc::BitstreamReader::ConsumeBits):
- Add runtime check for (bits < 0) since this would have caught the
issue sooner.
*
Source/ThirdParty/libwebrtc/WebKit/0001-Fix-integer-overflow-in-BitstreamReader-ReadBit-call.patch:
Add.
Canonical link: https://commits.webkit.org/270062@main
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