Opened 5 years ago
Closed 4 years ago
#7612 closed defect (fixed)
Crash of FFMPEG webp decoder
| Reported by: | Alexandre Vrubel | Owned by: | |
|---|---|---|---|
| Priority: | important | Component: | avcodec |
| Version: | git-master | Keywords: | webp crash abort regression |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | yes | |
| Analyzed by developer: | no |
Description
Summary of the bug:
When opening some WEBP files, the multithreaded webp decoder causes a crash on Windows version of ffmpeg, and explicitly asks for a bug report. linux version crashes as well.
How to reproduce:
ffmpeg -i crash_reading.webp output.jpg
ffmpeg version built on 20181201
The log and source image that causes the bug are added to this ticket.
I managed to circumvent the bug using the "-threads 1" option. Therefore, it appears that the bug is caused by a multithreading issue inside the webp decoder
Attachments (2)
Change History (6)
by , 5 years ago
| Attachment: | ffmpeg-20181212-143540.log added |
|---|
by , 5 years ago
| Attachment: | crash_reading.webp added |
|---|
source image file that always reproduces the bug
comment:1 by , 5 years ago
| Keywords: | crash abort added |
|---|---|
| Priority: | normal → important |
| Reproduced by developer: | set |
| Status: | new → open |
| Version: | unspecified → git-master |
comment:2 by , 5 years ago
| Keywords: | regression added |
|---|
The crash is apparently a regression since bddb2343 / 061a0c14, decoding was broken since b26ccf218d933660c551832b4b14976b2acb3f0c
comment:4 by , 4 years ago
| Resolution: | → fixed |
|---|---|
| Status: | open → closed |
Fixed by Pascal Massimino in 857fd2ad99032e3ff51363975997d0caf0e72e7b
ffmpeg log of the bug