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From: Zhan Xusheng <zhanxusheng1024@gmail.com>
To: Gao Xiang <hsiangkao@linux.alibaba.com>
Cc: linux-erofs@lists.ozlabs.org, Zhan Xusheng <zhanxusheng@xiaomi.com>
Subject: [PATCH erofs-utils 0/2] tar: fix parsing issues for pax and GNU extensions
Date: Tue, 14 Apr 2026 22:13:11 +0800	[thread overview]
Message-ID: <20260414141313.46575-1-zhanxusheng@xiaomi.com> (raw)

This series fixes two issues in tar parsing:

- An out-of-bounds access when trimming PAX path entries
- Missing NULL pointer checks when handling GNU long name/link records

These issues can be triggered by malformed tar archives and may lead
to crashes. The fixes improve robustness when processing untrusted
inputs.

Zhan Xusheng (2):
  erofs-utils: tar: fix out-of-bounds access when trimming pax path
  erofs-utils: tar: add missing NULL checks for GNU long name/link

 lib/tar.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

-- 
2.43.0



             reply	other threads:[~2026-04-14 14:13 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-14 14:13 Zhan Xusheng [this message]
2026-04-14 14:13 ` [PATCH 1/2] erofs-utils: tar: fix out-of-bounds access when trimming pax path Zhan Xusheng
2026-04-14 14:19   ` Gao Xiang
2026-04-14 14:46     ` [PATCH erofs-utils 0/2] tar: fix parsing issues for pax and GNU extensions Zhan Xusheng
2026-04-14 14:49       ` Gao Xiang
2026-04-14 14:55         ` Zhan Xusheng
2026-04-14 14:13 ` [PATCH 2/2] erofs-utils: tar: add missing NULL checks for GNU long name/link Zhan Xusheng

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