CVE-2026-90104

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Source
https://cve.org/CVERecord?id=CVE-2026-90104
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90104.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-90104
Downstream
AZL (1)
BELL (1)
CLSA (4)
DEBIAN (1)
openSUSE (2)
SUSE (17)
UBUNTU (1)
Related
openSUSE (2)
SUSE (17)
Published
2026-09-17T16:06:14Z
Modified
2026-10-31T02:47:54Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
NFSv4.1: zero referring call lists before decoding
Details

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.

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90104.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
4aece6a19cf7f474f15eb861ba74db4479884ce3
Fixed
810f6b3a29ac96fdc16909132b31627dae6824c2
Fixed
ed54460caf5b5aa65ec03c9a6032d831f39f19f5
Fixed
7510a5b9edec9d9536a4e69f10edfb2592e6cf7f
Fixed
f4d23937e1c41995c2f54af26c89b5e48a41c299
Fixed
f31f3c042e024aef437cda42f0424ae8d4594b6c
Fixed
8fa4804fe62ca4155a2d8fc2789d630376cbf2fc

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90104.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
2.6.31
Fixed
6.1.191
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.160
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.114
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.57
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.2.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90104.json"