From ea0b5aa5f184cf8293c93163f0fb00505190d431 Mon Sep 17 00:00:00 2001 From: "Alexey V. Vissarionov" Date: Sun, 18 Dec 2022 06:33:47 +0300 Subject: [PATCH] PCI/IOV: Enlarge virtfn sysfs name buffer The sysfs link name "virtfn%u" constructed by pci_iov_sysfs_link() requires 17 bytes to contain the longest possible string. Increase VIRTFN_ID_LEN to accommodate that. Found by Linux Verification Center (linuxtesting.org) with SVACE. [bhelgaas: commit log, comment at #define] Fixes: dd7cc44d0bce ("PCI: add SR-IOV API for Physical Function driver") Link: https://lore.kernel.org/r/20221218033347.23743-1-gremlin@altlinux.org Signed-off-by: Alexey V. Vissarionov Signed-off-by: Bjorn Helgaas --- drivers/pci/iov.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index 9522175..b2e8322 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -14,7 +14,7 @@ #include #include "pci.h" -#define VIRTFN_ID_LEN 16 +#define VIRTFN_ID_LEN 17 /* "virtfn%u\0" for 2^32 - 1 */ int pci_iov_virtfn_bus(struct pci_dev *dev, int vf_id) { -- 2.7.4