Missing Release of Resource after Effective Lifetime Affecting kernel-debug-modules-extra package, versions *
Threat Intelligence
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Test your applications- Snyk IDSNYK-RHEL10-KERNELDEBUGMODULESEXTRA-20348372
- published1 Oct 2026
- disclosed25 Sept 2026
Introduced: 25 Sep 2026
NewCVE-2026-97979 (opens in a new tab)How to fix?
There is no fixed version for RHEL:10 kernel-debug-modules-extra.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-modules-extra package and not the kernel-debug-modules-extra package as distributed by RHEL.
See How to fix? for RHEL:10 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
ice: add missing xa_destroy for sched_node_ids
Commit 16dfa49406bc ("ice: Introduce new parameters in ice_sched_node") added a sched_node_ids xarray to the port info structure, but never called xa_destroy on it.
Since xarrays can allocate internal memory, this can result in a memory leak even if every element in the xarray has been removed.
The xarray is currently embedded in the port_info structure. This appears to have been done because its use is within functions that take the port_info as a primary argument.
However, this complicates managing the lifecycle of the field. The port_info structure is allocated in ice_init_hw() using devm, and it is not released until the devm cleanup when the driver is unloaded.
The ice_init_hw() function is called in many places, including devlink reload, and possibly during DDP load after updating the Tx scheduler layout.
Adding a call of xa_destroy to the ice_deinit_hw() causes Sashiko to raise multiple concerns due to potential ordering issues and possible ways that port_info could be a dangling reference.
To handle this, move the sched_node_ids out of port_info and into the hw structure. All users of the array already have a pointer to hw anyways, and there is only one sched_node_ids per adapter. While here, remove the overly verbose comment explaining the nature of the sched_node_ids xarray.
Add the missing xa_destroy to the cleanup path and to ice_deinit_hw(), ensuring that we properly release the xarray memory.
This was caught by Sashiko during development of unrelated code.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2541020
- https://access.redhat.com/security/cve/CVE-2026-97979
- https://git.kernel.org/stable/c/44cdd6b7e036303f7fecf841cf23c05a4a4faf2d
- https://git.kernel.org/stable/c/53432c4c3e869076350aef319534431af8ba99c1
- https://git.kernel.org/stable/c/d6f38fb12069fb1edf762962b5fcf3f42d643b47
- https://git.kernel.org/stable/c/f5463bc124c0d6f922e272336584730c5c61c4f1