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authorNicolas Pitre <nicolas.pitre@linaro.org>2013-02-25 02:06:09 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-25 02:29:49 +0100
commita883b70d8e0a88278c0a1f80753b4dc99962b541 (patch)
tree923e2b4d21eecff2561b02e841638ae82467e74c /drivers/ata/ahci.c
parentMerge tag 'stable/for-linus-3.9-rc0-tag' of git://git.kernel.org/pub/scm/linu... (diff)
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tty vt: fix character insertion overflow
Commit 81732c3b2fed ("tty vt: Fix line garbage in virtual console on command line edition") broke insert_char() in multiple ways. Then commit b1a925f44a3a ("tty vt: Fix a regression in command line edition") partially fixed it. However, the buffer being moved is still too large and overflowing beyond the end of the current line, corrupting existing characters on the next line. Example test case: echo -e "abc\nde\x1b[A\x1b[4h \x1b[4l\x1b[B" Expected result: ab c de Current result: ab c e Needless to say that this is very annoying when inserting words in the middle of paragraphs with certain text editors. Signed-off-by: Nicolas Pitre <nico@linaro.org> Cc: Jean-François Moine <moinejf@free.fr> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: <stable@vger.kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/ata/ahci.c')
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