From: Claude Code Review Bot <claude-review@example.com>
To: dri-devel-reviews@example.com
Subject: Claude review: accel/ivpu: prevent uninitialized data bug in debugfs
Date: Tue, 26 May 2026 07:38:50 +1000 [thread overview]
Message-ID: <review-overall-ahP24m6Mii9EDL7Q@stanley.mountain> (raw)
In-Reply-To: <ahP24m6Mii9EDL7Q@stanley.mountain>
Overall Series Review
Subject: accel/ivpu: prevent uninitialized data bug in debugfs
Author: Dan Carpenter <error27@gmail.com>
Patches: 2
Reviewed: 2026-05-26T07:38:50.251194
---
This is a single-patch fix from Dan Carpenter addressing an uninitialized data bug in the IVPU debugfs `priority_bands_fops_write` handler. The analysis is correct and the fix is appropriate.
The core issue: `simple_write_to_buffer()` writes into `buf` starting at offset `*pos` (line 1190 of `fs/libfs.c`: `copy_from_user(to + pos, from, count)`). If `*pos` is non-zero, the bytes in `buf[0..*pos-1]` are left uninitialized on the stack. The subsequent `buf[ret] = '\0'` and `sscanf()` would then operate on partially uninitialized data, which is both a correctness bug and a potential information leak.
---
Generated by Claude Code Patch Reviewer
next prev parent reply other threads:[~2026-05-25 21:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-25 7:14 [PATCH] accel/ivpu: prevent uninitialized data bug in debugfs Dan Carpenter
2026-05-25 7:25 ` Wachowski, Karol
2026-05-25 21:38 ` Claude Code Review Bot [this message]
2026-05-25 21:38 ` Claude review: " Claude Code Review Bot
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