AZL-109121
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-109121.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-109121
- Upstream
- Published
- 2026-10-18T16:17:21Z
- Modified
- 2026-10-21T05:36:09Z
- Summary
- CVE-2026-98686 affecting package kernel 6.6.157.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
smb: client: discard post-EOF pagecache when extending a file via zero range
smb3_zero_range() removed the pagecache only for the range being zeroed, so when it extends the file the folio straddling the old EOF - which may hold data dirtied past EOF through an mmap - was never dropped and became visible as file content once the file was extended.
Lower the discard boundary to the smaller of the zero-range offset and the old EOF.
- References