comparison runtime/doc/cmdline.txt @ 33776:9503dc55b5ed v9.0.2108

patch 9.0.2108: [security]: overflow with count for :s command Commit: https://github.com/vim/vim/commit/ac63787734fda2e294e477af52b3bd601517fa78 Author: Christian Brabandt <cb@256bit.org> Date: Tue Nov 14 20:45:48 2023 +0100 patch 9.0.2108: [security]: overflow with count for :s command Problem: [security]: overflow with count for :s command Solution: Abort the :s command if the count is too large If the count after the :s command is larger than what fits into a (signed) long variable, abort with e_value_too_large. Adds a test with INT_MAX as count and verify it correctly fails. It seems the return value on Windows using mingw compiler wraps around, so the initial test using :s/./b/9999999999999999999999999990 doesn't fail there, since the count is wrapping around several times and finally is no longer larger than 2147483647. So let's just use 2147483647 in the test, which hopefully will always cause a failure Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Thu, 16 Nov 2023 22:15:10 +0100
parents 46d449fd4fe4
children 8c4c6369239b
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1 *cmdline.txt* For Vim version 9.0. Last change: 2023 May 20 1 *cmdline.txt* For Vim version 9.0. Last change: 2023 Nov 15
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4 VIM REFERENCE MANUAL by Bram Moolenaar 4 VIM REFERENCE MANUAL by Bram Moolenaar
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360 be specified in the following form: 360 be specified in the following form:
361 *:history-indexing* 361 *:history-indexing*
362 A positive number represents the absolute index of an entry 362 A positive number represents the absolute index of an entry
363 as it is given in the first column of a :history listing. 363 as it is given in the first column of a :history listing.
364 This number remains fixed even if other entries are deleted. 364 This number remains fixed even if other entries are deleted.
365 (see |E1510|)
365 366
366 A negative number means the relative position of an entry, 367 A negative number means the relative position of an entry,
367 counted from the newest entry (which has index -1) backwards. 368 counted from the newest entry (which has index -1) backwards.
368 369
369 Examples: 370 Examples: