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udev/cdrom_id: check last track info

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Fixes off-by-one issue.

Fixes #24306.

(cherry picked from commit 628998ecfa0d39b38874e1aecdb28022f80f3269)
(cherry picked from commit c67a388aeffcdc27ff280f01b7939005f7a9c8e9)
This commit is contained in:
Yu Watanabe 2022-08-14 06:00:10 +09:00 committed by Zbigniew Jędrzejewski-Szmek
parent da1589db45
commit c3fcff5291
1 changed files with 1 additions and 1 deletions
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src/udev/cdrom_id/cdrom_id.c
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@ -704,7 +704,7 @@ static int cd_media_toc(Context *c) {
/* Take care to not iterate beyond the last valid track as specified in
* the TOC, but also avoid going beyond the TOC length, just in case
* the last track number is invalidly large */
for (size_t i = 4; i + 8 < len && num_tracks > 0; i += 8, --num_tracks) {
for (size_t i = 4; i + 8 <= len && num_tracks > 0; i += 8, --num_tracks) {
bool is_data_track;
uint32_t block;