GHSA-9hq9-gv35-c42w

GHSA-9hq9-gv35-c42w PUBLISHED CVSS 7.099999904632568 HIGH

Record from GitHub Advisory Database · Published May 9, 2025

In the Linux kernel, the following vulnerability has been resolved: 9p/net: fix improper handling of bogus negative read/write replies In p9_client_write() and p9_client_read_once(), if the server incorrectly replies with success but a negative write/read count then we would consider written (negative) <= rsize (positive) because both variables were signed. Make variables unsigned to avoid this problem. The reproducer linked below now fails with the following error instead of a null pointer deref: 9pnet: bogus RWRITE count (4294967295 > 3)

Risk scores

CVSS 3.1

7.099999904632568

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Timeline

May 9, 2025 CVE Published
May 1, 2026 Security Advisory

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vulnetix vdb vuln GHSA-9hq9-gv35-c42w
vulnetix vdb fixes GHSA-9hq9-gv35-c42w

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curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/GHSA-9hq9-gv35-c42w/fixes/registry"

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