High severity · published Sep 11, 2025
CVE-2025-39783
PCI: endpoint: Fix configfs group list head handling
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
PCI: endpoint: Fix configfs group list head handling
Doing a list_del() on the epf_group field of struct pci_epf_driver in
pci_epf_remove_cfs() is not correct as this field is a list head, not
a list entry. This list_del() call triggers a KASAN warning when an
endpoint function driver which has a configfs attribute group is torn
down:
==================================================================
BUG: KASAN: slab-use-after-free in pci_epf_remove_cfs+0x17c/0x198
Write of size 8 at addr ffff00010f4a0d80 by task rmmod/319
CPU: 3 UID: 0 PID: 319 Comm: rmmod Not tainted 6.16.0-rc2 #1 NONE
Hardware name: Radxa ROCK 5B (DT)
Call trace:
show_stack+0x2c/0x84 (C)
dump_stack_lvl+0x70/0x98
print_report+0x17c/0x538
kasan_report+0xb8/0x190
__asan_report_store8_noabort+0x20/0x2c
pci_epf_remove_cfs+0x17c/0x198
pci_epf_unregister_driver+0x18/0x30
nvmet_pci_epf_cleanup_module+0x24/0x30 [nvmet_pci_epf]
__arm64_sys_delete_module+0x264/0x424
invoke_syscall+0x70/0x260
el0_svc_common.constprop.0+0xac/0x230
do_el0_svc+0x40/0x58
el0_svc+0x48/0xdc
el0t_64_sync_handler+0x10c/0x138
el0t_64_sync+0x198/0x19c
...
Remove this incorrect list_del() call from pci_epf_remove_cfs().
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
4.18 before 5.4.297; 5.5 before 5.10.241; 5.11 before 5.15.190; 5.16 before 6.1.149; 6.2 before 6.6.103; 6.7 before 6.12.44; +1 more · source: NVD
LI
Linux · Linux
ef1433f717a2c63747a519d86965d73ff9bd08b3 before 80ea6e6904fb2ba4ccb5d909579988466ec65358; ef1433f717a2c63747a519d86965d73ff9bd08b3 before d5aecddc3452371d9da82cdbb0c715812524b54b; ef1433f717a2c63747a519d86965d73ff9bd08b3 before dc4ffbd571716ff3b171418fb03abe80e720a7b1; ef1433f717a2c63747a519d86965d73ff9bd08b3 before 409af8b9f7b4f23cd0464e71c6cd6fe13c076ae2; ef1433f717a2c63747a519d86965d73ff9bd08b3 before 0758862386f114d9ab1e23181461bd1e2e9ec4c6; ef1433f717a2c63747a519d86965d73ff9bd08b3 before 6cf65505523224cab1449d726d2ce8180c2941ee; +3 more · source: vendor
DL
Debian Linux · Debian
11.0 · source: NVD
SC
SIMATIC CN 4100 · Siemens
before V5.0 · source: CISA
SS
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.5; V3.1.5 · source: CISA
SS
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens
V3.1.5; V3.1.5 · source: CISA
SS
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.5 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-39783
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-39783
Patch
https://git.kernel.org/stable/c/0758862386f114d9ab1e23181461bd1e2e9ec4c6
Patch
https://git.kernel.org/stable/c/409af8b9f7b4f23cd0464e71c6cd6fe13c076ae2
Patch
https://git.kernel.org/stable/c/6cf65505523224cab1449d726d2ce8180c2941ee
Patch
https://git.kernel.org/stable/c/80ea6e6904fb2ba4ccb5d909579988466ec65358
Patch
https://git.kernel.org/stable/c/a302bd89db35d8b7e279de4d2b41c16c7f191069
Patch
https://git.kernel.org/stable/c/d5aecddc3452371d9da82cdbb0c715812524b54b
More from Kernel
9.8
CVE-2025-39682
tls: fix handling of zero-length records on the rx_list
8.8
CVE-2026-53266
netfilter: bridge: make ebt_snat ARP rewrite writable
8.8
CVE-2013-6282
Linux Kernel Improper Input Validation Vulnerability
8.4
CVE-2022-0185
Linux Kernel Heap-Based Buffer Overflow Vulnerability
8.4
CVE-2013-2094
Linux Kernel Privilege Escalation Vulnerability
