AZL-70153
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-70153.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-70153
- Upstream
- Published
- 2025-05-09T07:16:09Z
- Modified
- 2026-04-01T05:21:42.408107Z
- Summary
- CVE-2025-37879 affecting package kernel 5.15.200.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
9p/net: fix improper handling of bogus negative read/write replies
In p9clientwrite() and p9clientread_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)
- References