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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2024-03-23 17:48:43 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-04-27 17:07:15 +0200 |
| commit | 89af25bd4b4bf6a71295f07e07a8ae7dc03c6595 (patch) | |
| tree | a9c6119553b54127246cb7279fb90856e90a79a4 /drivers/accessibility | |
| parent | 7c6f941492b7f1900dbf81c53058d3f848c39861 (diff) | |
| download | linux-89af25bd4b4bf6a71295f07e07a8ae7dc03c6595.tar.gz linux-89af25bd4b4bf6a71295f07e07a8ae7dc03c6595.tar.bz2 linux-89af25bd4b4bf6a71295f07e07a8ae7dc03c6595.zip | |
speakup: Avoid crash on very long word
commit c8d2f34ea96ea3bce6ba2535f867f0d4ee3b22e1 upstream.
In case a console is set up really large and contains a really long word
(> 256 characters), we have to stop before the length of the word buffer.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Fixes: c6e3fd22cd538 ("Staging: add speakup to the staging directory")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240323164843.1426997-1-samuel.thibault@ens-lyon.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/accessibility')
| -rw-r--r-- | drivers/accessibility/speakup/main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/accessibility/speakup/main.c b/drivers/accessibility/speakup/main.c index 73db0cb44fc7..45d906f17ea3 100644 --- a/drivers/accessibility/speakup/main.c +++ b/drivers/accessibility/speakup/main.c @@ -573,7 +573,7 @@ static u_long get_word(struct vc_data *vc) } attr_ch = get_char(vc, (u_short *)tmp_pos, &spk_attr); buf[cnt++] = attr_ch; - while (tmpx < vc->vc_cols - 1) { + while (tmpx < vc->vc_cols - 1 && cnt < sizeof(buf) - 1) { tmp_pos += 2; tmpx++; ch = get_char(vc, (u_short *)tmp_pos, &temp); |