fix(ffmpeg): CVE-2026-58049#34
Open
deepin-ci-robot wants to merge 1 commit into
Open
Conversation
Contributor
Author
|
/hold |
Contributor
Author
|
[APPROVALNOTIFIER] This PR is NOT APPROVED This pull-request has been approved by: The full list of commands accepted by this bot can be found here. DetailsNeeds approval from an approver in each of these files:Approvers can indicate their approval by writing |
|
TAG Bot TAG: 7%6.1.5-0deepin4 |
Contributor
|
/integrate |
|
AutoIntegrationPr Bot |
deepin-ci-robot
force-pushed
the
fix/CVE-2026-58049
branch
from
e1bd31c to
aa9c1a5
Compare
Fix out-of-bounds write in RASC decoder decode_dlta(). Check that 32-bit DLTA accesses stay within the row boundary. Origin: FFmpeg/FFmpeg@11ff18a Bug: https://bugzilla.redhat.com/show_bug.cgi?id=2493952 Generated-By: uos/deepseek-v4-flash Co-Authored-By: hudeng <hudeng@deepin.org>
deepin-ci-robot
force-pushed
the
fix/CVE-2026-58049
branch
from
aa9c1a5 to
c91f40f
Compare
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
CVE 修复
CVE ID: CVE-2026-58049
漏洞描述: FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) performs 32-bit reads and writes at the row cursor before the NEXT_LINE row-boundary check and validates the DLTA region in pixel rather than byte units, so a DLTA run on a PAL8 frame can access several bytes past the row allocation.
修复方案: 添加 dlta_room() 边界检查函数，在 32-bit DLTA 访问前验证剩余空间是否足够
上游提交: FFmpeg/FFmpeg@11ff18a
验证状态: Guard 验证通过
Fix-Approach: backport-upstream
Generated by: CVE-Fixer Agent
Co-Authored-By: hudeng hudeng@deepin.org