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Improper Input Validation The advisory has been revoked - it doesn't affect any version of package rv  (opens in a new tab)

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  • Snyk IDSNYK-CENTOS10-RV-19936777
  • published19 Sept 2026
  • disclosed11 Sept 2026
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Introduced: 11 Sep 2026

CVE-2026-89632  (opens in a new tab)
CWE-20  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rv package and not the rv package as distributed by Centos.

In the Linux kernel, the following vulnerability has been resolved:

smb: client: fix use-before-check of ReparseDataLength in reparse_buf_ptr()

reparse_buf_ptr() reads buf->ReparseDataLength before checking that count covers the full fixed header:

buf = (struct reparse_data_buffer *)((u8 *)io + off);
len = sizeof(*buf);                          /* 8 bytes */
rdlen = le16_to_cpu(buf->ReparseDataLength); /* offset 4, 2 bytes */


if (count < len || count < rdlen + len)      /* check comes after */

struct reparse_data_buffer has ReparseDataLength at offset 4. If a server returns OutputCount < 6, the read at offset 4-5 reaches past the end of the received data. The off+count bounds against iov_len were already validated, but that does not protect against count being smaller than sizeof(*buf).

Split the check: verify count >= sizeof(*buf) before reading ReparseDataLength, then verify count covers the data region.