From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Thu, 16 Jul 2026 16:16:07 +0000 (+0900)
Subject: udev-util: bound leading whitespace skip in udev_replace_whitespace (#42757)
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=95648d612a8963d67963e2b1ac0d0a5cf5beeee4;p=thirdparty%2Fsystemd.git

udev-util: bound leading whitespace skip in udev_replace_whitespace (#42757)

udev_replace_whitespace() is documented to read at most 'len' bytes from
'str':
- the strspn() skip of leading whitespace stops at a non-space byte or
NUL, not at 'len'
- ata_id passes the space padded, non-NUL-terminated ATA IDENTIFY
model/serial/fw fields
- an all-blank field reads off the end of the 512-byte hd_driveid stack
struct
Capped the skip to 'len'; existing outputs are unchanged. Added a
regression test.
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95648d612a8963d67963e2b1ac0d0a5cf5beeee4