CVE-2026-90104
CVE CVE-2026-90104EUVD EUVD-2026-81697Published 2026-09-17T16:06:14.000ZLast changed 2026-09-18T17:53:03.000ZCVSS 9.8
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 4aece6a19cf7f474f15eb861ba74db4479884ce3 <f31f3c042e024aef437cda42f0424ae8d4594b6c; patch: 7.2.6; 2.6.31; patch: 7.3-rc1; patch: 0; 4aece6a19cf7f474f15eb861ba74db4479884ce3 <8fa4804fe62ca4155a2d8fc2789d630376cbf2fc
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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