AZL-83672
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-83672.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-83672
- Upstream
- Published
- 2026-04-24T15:16:43Z
- Modified
- 2026-08-28T17:47:34Z
- Summary
- CVE-2026-31638 affecting package kernel for versions less than 6.6.137.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Only put the call ref if one was acquired
rxrpc_input_packet_on_conn() can process a to-client packet after the current client call on the channel has already been torn down. In that case chan->call is NULL, rxrpc_try_get_call() returns NULL and there is no reference to drop.
The client-side implicit-end error path does not account for that and unconditionally calls rxrpc_put_call(). This turns a protocol error path into a kernel crash instead of rejecting the packet.
Only drop the call reference if one was actually acquired. Keep the existing protocol error handling unchanged.
- References