Problem: tests: Test_recover_corrupted_swap_file1 fails on big-ending
systems (after v9.2.0077)
Solution: Skip the test on big-endian systems (James McCoy)
The POC files were generated on 64-bit little-endian systems and
therefore are not portable to any other system type.
Extract the 64-bit / endianness detection from
Test_recover_corrupted_swap_file() into a SetUp() function and use that
data to determine if the test should be run.
closes: vim/vim#19620ff16ebdb08
Co-authored-by: James McCoy <jamessan@debian.org>
Problem: memline: a crafted swap files with bogus pe_page_count/pe_bnum
values could cause a multi-GB allocation via mf_get(), and
invalid pe_old_lnum/pe_line_count values could cause a SEGV
when passed to readfile() (ehdgks0627, un3xploitable)
Solution: Add bounds checks on pe_page_count and pe_bnum against
mf_blocknr_max before descending into the block tree, and
validate pe_old_lnum >= 1 and pe_line_count > 0 before calling
readfile().
Github Advisory:
https://github.com/vim/vim/security/advisories/GHSA-r2gw-2x48-jj5p65c1a143c3
Co-authored-by: Christian Brabandt <cb@256bit.org>
09d4133 changed blocknr_T from long to int64_t, so pe_bnum is now always 64-bit. This was an incompatible change in the swapfile format for 32-bit systems, but there have been no complaints in the past 9 years so just adjust the test.
Problem: CI may fail in test_recover_empty_swap
Solution: Set directory option
Fix failing Test_recover_empty_swap test
:recover by default not only looks in the current directory, but also in
~/tmp for files to recover. If it finds some files to recover, it will
interactively prompt for a file to recover. However, prompting doesn't
work when running the test suite (and even if it would, there is no one
that can answer the prompt).
So it doesn't really make sense during testing, to inspect different
directories for swap files and prompt and wait (which will lead to a
timeout and therefore a failing test).
So set the 'directory' option temporarily to the current directory only
and reset it back once the test finishes.
closes: vim/vim#130381c7397f3f1
Co-authored-by: Christian Brabandt <cb@256bit.org>
Problem: Too many delete() calls in tests.
Solution: Use deferred delete where possible.
db77cb3c08
Include test_recover.vim changes only.
Cherry-pick test_recover.vim change from patch 8.2.3637.
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: Crash when recovering from corrupted swap file.
Solution: Bail out when the line index looks wrong. (closesvim/vim#12276)
bf1b713202
Co-authored-by: Bram Moolenaar <Bram@vim.org>
