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fix: snprintf buffer overflow detected by -D_FORTIFY_SOURCE=3
Thread no. 1 (24 frames) neovim#8 snprintf at /usr/include/bits/stdio2.h:54 neovim#9 set_cmdarg at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/eval.c:7044 neovim#10 apply_autocmds_group at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/autocmd.c:1843 neovim#11 apply_autocmds_exarg at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/autocmd.c:1549 neovim#12 readfile at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/fileio.c:617 neovim#13 buf_reload at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/fileio.c:5038 neovim#14 buf_check_timestamp at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/fileio.c:4952 neovim#15 check_timestamps at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/fileio.c:4678 neovim#16 ex_checktime at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/ex_cmds2.c:765 neovim#17 execute_cmd0 at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/ex_docmd.c:1620 neovim#18 do_one_cmd at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/ex_docmd.c:2275 neovim#19 do_cmdline at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/ex_docmd.c:584 neovim#20 ex_execute at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/eval.c:7727 neovim#21 execute_cmd0 at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/ex_docmd.c:1620 neovim#22 do_one_cmd at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/ex_docmd.c:2275 neovim#23 do_cmdline at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/ex_docmd.c:584 neovim#24 do_ucmd at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/usercmd.c:1661 neovim#25 execute_cmd0 at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/ex_docmd.c:1612 neovim#26 do_one_cmd at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/ex_docmd.c:2275 neovim#27 do_cmdline at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/ex_docmd.c:584 neovim#28 nv_colon at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/normal.c:4058 neovim#29 normal_execute at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/normal.c:1172 neovim#30 state_enter at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/state.c:88 neovim#31 normal_enter at /usr/src/debug/neovim-0.8.2-2.fc38.x86_64/src/nvim/normal.c:471 Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
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