MaxBitmap causing segmentation fault
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
ghostscript (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
Ghostscript 9.26 is seeing a segfault when MaxBitmap is too high combined with pngalpha and FirstPage settings. I've seen this on two very different PDFs from different sources.
Running on Ubuntu 18.04
Command run:
% gs -dMaxBitmap=
Causes a segfault
Changing MaxBitmap (or removing either of the pngalpha or FirstPage options!?) takes away the seg fault. For example, this will pass:
% gs -dMaxBitmap=
Backtrace on non-debug version when segfaulting:
#0 0xb73a5ce9 in ?? () from /usr/lib/
#1 0xb72351f4 in ?? () from /usr/lib/
#2 0xb71b26c3 in ?? () from /usr/lib/
#3 0xb71b8558 in ?? () from /usr/lib/
#4 0xb71b9d29 in send_pdf14trans () from /usr/lib/
#5 0xb719f1c1 in ?? () from /usr/lib/
#6 0xb71a0357 in gs_pop_
#7 0xb74e5afc in ?? () from /usr/lib/
#8 0xb748f07e in ?? () from /usr/lib/
#9 0xb748f49f in gs_interpret () from /usr/lib/
#10 0xb7481c30 in gs_main_
#11 0xb7481cbc in gs_main_
#12 0xb7481d03 in gs_main_run_string () from /usr/lib/
#13 0xb7483918 in ?? () from /usr/lib/
#14 0xb7483a8d in ?? () from /usr/lib/
#15 0xb7483b64 in ?? () from /usr/lib/
#16 0xb7484337 in ?? () from /usr/lib/
#17 0xb74852d0 in gs_main_
#18 0xb7486b82 in gsapi_init_
#19 0x00400835 in ?? ()
#20 0xb6f0be81 in __libc_start_main (main=0x400780, argc=6, argv=0xbffff704, init=0x400aa0, fini=0x400b00,
This is possibly a duplicate of bug 1806517. Please check whether the fixed version also fixes your problem.