Description of problem: When activating 'altscreen' feature, 'screen' aborts with | Suddenly the Dungeon collapses!! - You die... message with enlarging window. Version-Release number of selected component (if applicable): screen-4.0.3-13.fc11.x86_64 How reproducible: 100% Steps to Reproduce: 0. add 'altscreen on' to ~/.screenrc 1. open non-maximized xterm 2. start 'screen -S test' 3. start 'mc' there 4. maximize 'xterm' 5. press ^L to refresh display Actual results: | Suddenly the Dungeon collapses!! - You die... messages after some minutes Additional info: valgrind reports ==2344== Invalid free() / delete / delete[] ==2344== at 0x4A0776F: realloc (vg_replace_malloc.c:429) ==2344== by 0x415474: xrealloc (resize.c:638) ==2344== by 0x41555A: CheckMaxSize (resize.c:554) ==2344== by 0x4172AA: ChangeScreenSize (resize.c:211) ==2344== by 0x4256D8: InitTermcap (termcap.c:411) ==2344== by 0x417705: FinishAttach (socket.c:1152) ==2344== by 0x419561: ReceiveMsg (socket.c:998) ==2344== by 0x44407A: sched (sched.c:232) ==2344== by 0x405E86: main (screen.c:1374) ==2344== Address 0x50f0f80 is 0 bytes inside a block of size 256 free'd ==2344== at 0x4A0776F: realloc (vg_replace_malloc.c:429) ==2344== by 0x415474: xrealloc (resize.c:638) ==2344== by 0x41556F: CheckMaxSize (resize.c:556) ==2344== by 0x4172AA: ChangeScreenSize (resize.c:211) ==2344== by 0x4256D8: InitTermcap (termcap.c:411) ==2344== by 0x405C83: main (screen.c:1283) ==2344== ==2344== Invalid free() / delete / delete[] ==2344== at 0x4A0633D: free (vg_replace_malloc.c:323) ==2344== by 0x4154A1: xrealloc (resize.c:640) ==2344== by 0x41555A: CheckMaxSize (resize.c:554) ==2344== by 0x4172AA: ChangeScreenSize (resize.c:211) ==2344== by 0x4256D8: InitTermcap (termcap.c:411) ==2344== by 0x417705: FinishAttach (socket.c:1152) ==2344== by 0x419561: ReceiveMsg (socket.c:998) ==2344== by 0x44407A: sched (sched.c:232) ==2344== by 0x405E86: main (screen.c:1374) ==2344== Address 0x50f0f80 is 0 bytes inside a block of size 256 free'd ==2344== at 0x4A0776F: realloc (vg_replace_malloc.c:429) ==2344== by 0x415474: xrealloc (resize.c:638) ==2344== by 0x41556F: CheckMaxSize (resize.c:556) ==2344== by 0x4172AA: ChangeScreenSize (resize.c:211) ==2344== by 0x4256D8: InitTermcap (termcap.c:411) ==2344== by 0x405C83: main (screen.c:1283)
might be https://savannah.gnu.org/bugs/index.php?26742
Created attachment 355878 [details] fix (apply with -p2)
Included in screen-4.0.3-15.fc12. Thanks.