AZL-100091
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-100091.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-100091
- Upstream
- Published
- 2026-09-11T20:19:53Z
- Modified
- 2026-09-14T05:26:59Z
- Summary
- CVE-2026-89673 affecting package kernel 6.6.150.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
nfsd: fix XDR padding calculation in ff_encode_getdeviceinfo
nfsd4_ff_encode_getdeviceinfo() computes the da_addr_body reservation as 16 + netid_len + addr_len, but the subsequent xdr_encode_opaque() calls emit 8 + round_up(netid_len, 4) + round_up(addr_len, 4) bytes. The mismatch means the declared da_addr_body length exceeds the actual encoded data by 2-8 bytes on every flexfile GETDEVICEINFO reply, leaking stale reply-page content to the client and mis-aligning the subsequent version list decode.
Use xdr_align_size() for each string length to match what xdr_encode_opaque() actually writes.
- References