Crash on reading exr corrupt leader

[canonex]

Is there an existing issue for this?

• I checked and did not find my issue in the already reported ones

Describe the bug

Flatpack Darktable crashes when scrolling a folder containing corrupted file (the file was recovered from a sd card).
I could identify the corrupted file by looking at the terminal but for other people is not possible to solve this mistery.

In the UI the corrupted file could be highlighted.

Thank you,
Riccardo

Steps to reproduce

Open Darktable and go to lighttable.
Navigate to a folder with a corrupted file.
Crash.

Expected behavior

Darktable should not crash on corrupted exr / corrupted file

Logfile | Screenshot | Screencast

$ flatpak run org.darktable.Darktable 
pci id for fd 27: 10de:2820, driver (null)
pci id for fd 28: 10de:2820, driver (null)
/home/me/recup_dir.1/f1988864.exr: (EXR_ERR_BAD_CHUNK_LEADER) Preparing to read scanline 433 (chunk 433), found corrupt leader: packed size 70091, file offset 30376105, size 30408704
terminate called after throwing an instance of 'Iex_3_4::InputExc'
  what():  Unable to query scanline information

Commit

No response

Where did you obtain darktable from?

Flatpak

darktable version

5.6.0

What OS are you using?

Linux

What is the version of your OS?

Debian 13

Describe your system

Gnome, X11.
AMD Ryzen™ 7 8845HS w/ Radeon™ 780M Graphics × 16
NVIDIA GeForce RTX™ 4070 Laptop GPU

Are you using OpenCL GPU in darktable?

I dont know

If yes, what is the GPU card and driver?

Nvidia 550.163.01 - GeForce 4070 8Gb

Please provide additional context if applicable. You can attach files too, but might need to rename to .txt or .zip

I can send the corrupted exr privately.

[victoryforce]

I can send the corrupted exr privately.

@canonex - Yes, please. Although looking at the format loader code I'm almost sure where and what needs to be done to fix it, it would be more convenient to test the fix on a corrupt file right away.

My email is in my GitHub profile. It's probably easiest for you to give me access to the file through the file sharing service you use.

[canonex]

I can send the corrupted exr privately.

@canonex - Yes, please. Although looking at the format loader code I'm almost sure where and what needs to be done to fix it, it would be more convenient to test the fix on a corrupt file right away.

My email is in my GitHub profile. It's probably easiest for you to give me access to the file through the file sharing service you use.

Sent! I saw anyway that is already fixed, thank you!
Riccardo

[victoryforce]

Sent! I saw anyway that is already fixed, thank you!

I checked your sample as well, darktable now correctly reports that the file is corrupted and doesn't crash. Thanks for reporting this bug!

[canonex]

Sent! I saw anyway that is already fixed, thank you!

I checked your sample as well, darktable now correctly reports that the file is corrupted and doesn't crash. Thanks for reporting this bug!

Thank you for fixing it!