← WebKit — 2026-W35
cab391584f80 [MSE] Seeking to the end of a HTMLMediaElement backed by a MediaSource will unnecessarily fire an ended event
not a security fix
confidence 0.15
signal score 8.05
Source/WebCore/html
Classified as not security-relevant.
Triage note: ManagedMediaSource stops streaming once ended at end-of-media, HTMLMediaElement::seekTask avoids resetting m_sentEndEvent when already in ended playback (preventing a duplicate 'ended' event), and NetworkProcess rate-limits the media-streaming-activity notification. Media playback correctness/throttling, no memory-safety bug.
This commit was flagged by the signal scorer and reviewed by AI (not a human). It is listed only so the triage is auditable; there is no root-cause analysis because this is not a vulnerability fix.
Triage note: ManagedMediaSource stops streaming once ended at end-of-media, HTMLMediaElement::seekTask avoids resetting m_sentEndEvent when already in ended playback (preventing a duplicate 'ended' event), and NetworkProcess rate-limits the media-streaming-activity notification. Media playback correctness/throttling, no memory-safety bug.
This commit was flagged by the signal scorer and reviewed by AI (not a human). It is listed only so the triage is auditable; there is no root-cause analysis because this is not a vulnerability fix.
Structural signals: uaf_lifetime (+4.75), area:Source/WebCore/html (+2.0), surgical (+1.3)
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