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| ID | Project | Category | View Status | Date Submitted | Last Update | ||||
|---|---|---|---|---|---|---|---|---|---|
| 0002446 | LibNSBMP | [All Projects] General | public | 2016-03-17 22:43 | 2016-11-22 22:00 | ||||
| Reporter | Renchen | ||||||||
| Assigned To | Vincent Sanders | ||||||||
| Priority | none | Severity | crash | Reproducibility | always | ||||
| Status | closed | Resolution | fixed | ||||||
| Platform | Windows, Mac, Linux | OS | OS Version | ||||||
| Summary | 0002446: Crash when decoding a bmp file | ||||||||
| Description | I have a rle-8 encoded bmp file. When I passed that file into libnsbmp, it crashes immediately because of invalid memory access. | ||||||||
| Steps To Reproduce | Decode that bmp file using libnsbmp. | ||||||||
| Tags | No tags attached. | ||||||||
| Fixed in CI build # | 0195 | ||||||||
| Reported in CI build # | |||||||||
| Attached Files |
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| Notes |
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Chris Young (developer) 2016-03-31 11:02 |
Stack trace: bmp_decode_rle.part.0()+0x40c (section 1 @ 0x2A02B0) bmp_decode_rle.part.0()+0x60 (section 1 @ 0x29FF04) [image/bmp.c:183] nsbmp_redraw()+0x88 (section 1 @ 0x14590C) [content/content.c:636] content_scaled_redraw()+0x138 (section 1 @ 0xE7210) [amiga/bitmap.c:593] bitmap_render()+0xbc (section 1 @ 0x22A4) [desktop/browser_history.c:524] browser_window_history_add()+0x284 (section 1 @ 0x11DE98) [desktop/browser.c:1409] browser_window_callback()+0x6ec (section 1 @ 0x11A978) [content/hlcache.c:191] hlcache_content_callback()+0x4c (section 1 @ 0xF50D0) [content/content.c:772] content_set_ready()+0xf8 (section 1 @ 0xE5ED8) [image/bmp.c:168] nsbmp_convert()+0x148 (section 1 @ 0x145AB8) [content/content.c:286] content_llcache_callback()+0x210 (section 1 @ 0xE62A4) [content/llcache.c:3003] llcache_object_notify_users()+0x1ec (section 1 @ 0xF8678) [content/llcache.c:3430] llcache_catch_up_all_users()+0x5c (section 1 @ 0xF882C) [amiga/schedule.c:248] ami_schedule_handle()+0x16c (section 1 @ 0x3B3E0) [amiga/gui.c:2819] ami_get_msg()+0x4f4 (section 1 @ 0x1D6B8) [amiga/gui.c:5702] main()+0xea8 (section 1 @ 0x21798) native kernel module newlib.library.kmod+0x000020ac native kernel module newlib.library.kmod+0x00002d5c native kernel module newlib.library.kmod+0x00002ef0 _start()+0x170 (section 1 @ 0x16C) native kernel module dos.library.kmod+0x00024c18 native kernel module kernel+0x0003b648 native kernel module kernel+0x0003b6c8 |
Vincent Sanders (administrator) 2016-08-12 15:06 |
OK added failing bitmap to tests This fails because the file header in the bitmap points to the image data appearing at offset 54 (0x36) which is the palette entries (should be 1078 (0x436) ) libnsbmp explodes when trying to interpret the palette entries as RLE8. Apariently because it runs off the front out the output block which needs fixing. Separately a check that moves the data pointer after the palette if it is present. |
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Vincent Sanders (administrator) 2016-08-14 12:59 |
fixed in head of tree ready for next release. library is now robust in the face of bad RLE data library now copes with bad file header data offset in images with palettes Thanks for the report |
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Vincent Sanders (administrator) 2016-11-22 22:00 |
this issue has been closed because it is included in the 3.6 release |
| Notes |
| Issue History |
|||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2016-03-17 22:43 | Renchen | New Issue | |
| 2016-03-17 22:43 | Renchen | File Added: crash.bmp | |
| 2016-03-31 11:02 | Chris Young | Note Added: 0001364 | |
| 2016-08-12 15:06 | Vincent Sanders | Note Added: 0001384 | |
| 2016-08-12 15:06 | Vincent Sanders | Assigned To | => Vincent Sanders |
| 2016-08-12 15:06 | Vincent Sanders | Priority | immediate => none |
| 2016-08-12 15:06 | Vincent Sanders | Status | new => confirmed |
| 2016-08-14 12:59 | Vincent Sanders | Fixed in CI build # | => 0195 |
| 2016-08-14 12:59 | Vincent Sanders | Note Added: 0001386 | |
| 2016-08-14 12:59 | Vincent Sanders | Status | confirmed => resolved |
| 2016-08-14 12:59 | Vincent Sanders | Resolution | open => fixed |
| 2016-11-22 22:00 | Vincent Sanders | Note Added: 0001432 | |
| 2016-11-22 22:00 | Vincent Sanders | Status | resolved => closed |
| Issue History |