CVE-2026-90104
CRITICAL
INFO
Priority: 0.06
BB Relevance:
80/100
Published: 2026-09-17
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: NFSv4.1: zero referring call lists before decoding decode_cb_sequence_args() allocates csa_rclists with kmalloc_objs(), so each referring_call_list starts uninitialized. decode_rc_list() assigns rcl_refcalls only when rcl_nrefcalls is nonzero. A valid list with zero referring calls therefore leaves the pointer uninitialized, and nfs4_callback_sequence() later passes stale slab contents to kfree(). Allocate csa_rclists with kzalloc_objs() so every rcl_refcalls member is NULL from the beginning, including valid empty referring call lists.
Affected Software (7)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 4aece6a19cf7f474f15eb861ba74db4479884ce3 < 810f6b3a29ac96fdc16909132b31627dae6824c2 |
| Linux | Linux | 4aece6a19cf7f474f15eb861ba74db4479884ce3 < ed54460caf5b5aa65ec03c9a6032d831f39f19f5 |
| Linux | Linux | 4aece6a19cf7f474f15eb861ba74db4479884ce3 < 7510a5b9edec9d9536a4e69f10edfb2592e6cf7f |
| Linux | Linux | 4aece6a19cf7f474f15eb861ba74db4479884ce3 < f4d23937e1c41995c2f54af26c89b5e48a41c299 |
| Linux | Linux | 4aece6a19cf7f474f15eb861ba74db4479884ce3 < f31f3c042e024aef437cda42f0424ae8d4594b6c |
| Linux | Linux | 4aece6a19cf7f474f15eb861ba74db4479884ce3 < 8fa4804fe62ca4155a2d8fc2789d630376cbf2fc |
| Linux | Linux | 2.6.31 |