CVE-2026-31594

Source
https://cve.org/CVERecord?id=CVE-2026-31594
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31594.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-31594
Downstream
Related
Published
2026-04-24T14:42:20.556Z
Modified
2026-08-12T03:51:13.129570901Z
Summary
PCI: endpoint: pci-epf-vntb: Remove duplicate resource teardown
Details

In the Linux kernel, the following vulnerability has been resolved:

PCI: endpoint: pci-epf-vntb: Remove duplicate resource teardown

epfntbepcdestroy() duplicates the teardown that the caller is supposed to perform later. This leads to an oops when .allowlink fails or when .drop_link is performed. The following is an example oops of the former case:

Unable to handle kernel paging request at virtual address dead000000000108 [...] [dead000000000108] address between user and kernel address ranges Internal error: Oops: 0000000096000044 [#1] SMP [...] Call trace: pciepcremoveepf+0x78/0xe0 (P) pciprimaryepcepflink+0x88/0xa8 configfssymlink+0x1f4/0x5a0 vfssymlink+0x134/0x1d8 dosymlinkat+0x88/0x138 __arm64syssymlinkat+0x74/0xe0 [...]

Remove the helper, and drop pciepcput(). EPC device refcounting is tied to the configfs EPC group lifetime, and pciepcput() in the .drop_link path is sufficient.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31594.json",
    "cna_assigner": "Linux"
}
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
e2b6ef72b7aea9d7d480d2df499bcd1c93247abb
Fixed
305a0674bc552bfcc3231e23fb91cf4f62aec168
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e35f56bb03304abc92c928b641af41ca372966bb
Fixed
b261027a1a235d8925e332363f23135a0eff2b35
Fixed
e238ab12556b00f3b4d8b870b32ba1e4f4d4ebc2
Fixed
73bf218de28d039126dc64281d2b47dd3c46a0a3
Fixed
cec9ead73ab154a7953f6ab8dd5127e0d6bbf95a
Fixed
478e776101592eb63298714e96823ef78a3295ec
Fixed
a7a3cab4d33fd8a8aed864c447d0d7c99e85404e
Fixed
0da63230d3ec1ec5fcc443a2314233e95bfece54
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
5.15.153
Fixed
5.15.209

Affected versions

v5.*
v5.15.153
v5.15.154
v5.15.155
v5.15.156
v5.15.157
v5.15.158
v5.15.159
v5.15.160
v5.15.161
v5.15.162
v5.15.163
v5.15.164
v5.15.165
v5.15.166
v5.15.167
v5.15.168
v5.15.169
v5.15.170
v5.15.171
v5.15.172
v5.15.173
v5.15.174
v5.15.175
v5.15.176
v5.15.177
v5.15.178
v5.15.179
v5.15.180
v5.15.181
v5.15.182
v5.15.183
v5.15.184
v5.15.185
v5.15.186
v5.15.187
v5.15.188
v5.15.189
v5.15.190
v5.15.191
v5.15.192
v5.15.193
v5.15.194
v5.15.195
v5.15.196
v5.15.197
v5.15.198
v5.15.199
v5.15.200
v5.15.201
v5.15.202
v5.15.203
v5.15.204
v5.15.205
v5.15.206
v5.15.207
v5.15.208

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31594.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.15.209
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.175
Type
ECOSYSTEM
Events
Introduced
6.0.0
Fixed
6.6.136
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.12.84
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.18.24
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.19.14
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.0.1

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31594.json"