In the Linux kernel, the following vulnerability has been resolved:
PCI: endpoint: Fix swapped parameters in pci_{primary/secondary}_epc_epf_unlink() functions
struct configfs_item_operations callbacks are defined like the following:
int (*allow_link)(struct config_item *src, struct config_item *target);
void (*drop_link)(struct config_item *src, struct config_item *target);
While pci_primary_epc_epf_link() and pci_secondary_epc_epf_link() specify
the parameters in the correct order, pci_primary_epc_epf_unlink() and
pci_secondary_epc_epf_unlink() specify the parameters in the wrong order,
leading to the below kernel crash when using the unlink command in
configfs:
Unable to handle kernel paging request at virtual address 0000000300000857
Mem abort info:
...
pc : string+0x54/0x14c
lr : vsnprintf+0x280/0x6e8
...
string+0x54/0x14c
vsnprintf+0x280/0x6e8
vprintk_default+0x38/0x4c
vprintk+0xc4/0xe0
pci_epf_unbind+0xdc/0x108
configfs_unlink+0xe0/0x208+0x44/0x74
vfs_unlink+0x120/0x29c
__arm64_sys_unlinkat+0x3c/0x90
invoke_syscall+0x48/0x134
do_el0_svc+0x1c/0x30prop.0+0xd0/0xf0
[mani: cced stable, changed commit message as per https://lore.kernel.org/linux-pci/aV9joi3jF1R6ca02@ryzen]
References
Configurations
Configuration 1 (hide)
|
History
11 May 2026, 20:10
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | NVD-CWE-noinfo | |
| First Time |
Linux linux Kernel
Linux |
|
| References | () https://git.kernel.org/stable/c/142b1bba3299264b76ed8ef53cd93b2b2af65d6c - Patch | |
| References | () https://git.kernel.org/stable/c/1c96c1acef4b4a1108fc13f84a8ac0b0633bbb46 - Patch | |
| References | () https://git.kernel.org/stable/c/339191811e6fc4559c4008c5af7a91b05086d596 - Patch | |
| References | () https://git.kernel.org/stable/c/58686bf62cb38b92e4b28408162a5703775b4d12 - Patch | |
| References | () https://git.kernel.org/stable/c/733cbc3aa97e71cc70847e75c925b364cc9b04a6 - Patch | |
| References | () https://git.kernel.org/stable/c/8754dd7639ab0fd68c3ab9d91c7bdecc3e5740a8 - Patch | |
| References | () https://git.kernel.org/stable/c/aefc0e0bd20f54abe3b501b8798c0be656af272b - Patch | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
06 May 2026, 12:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-06 12:16
Updated : 2026-05-11 20:10
NVD link : CVE-2026-43200
Mitre link : CVE-2026-43200
CVE.ORG link : CVE-2026-43200
JSON object : View
Products Affected
linux
- linux_kernel
CWE