AZL-87083
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-87083.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-87083
- Upstream
- Published
- 2026-05-21T12:16:19Z
- Modified
- 2026-08-28T17:47:46Z
- Summary
- CVE-2026-43494 affecting package kernel for versions less than 6.6.141.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net/rds: reset op_nents when zerocopy page pin fails
When iov_iter_get_pages2() fails in rds_message_zcopy_from_user(), the pinned pages are released with put_page(), and rm->data.op_mmp_znotifier is cleared. But we fail to properly clear rm->data.op_nents.
Later when rds_message_purge() is called from rds_sendmsg() the cleanup loop iterates over the incorrectly non zero number of op_nents and frees them again.
Fix this by properly resetting op_nents when it should be in rds_message_zcopy_from_user().
- References