From: Fuqian Huang <huangfq.daxian@xxxxxxxxx> As there is still no hash for %p to print the address in linux 4.14, the address of function idt77252_init will be printed to syslog. Outputting kernel addresses will reveal the locations of kernel code and data. This case is similar to CVE-2018-7273[1]. Also, there is no need to print the address of function idt77252_init in idt77252_init. Just remove the print statement. [1] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7273 Cc: <Stable@xxxxxxxxxxxxxxx> # v4.14+ Signed-off-by: Fuqian Huang <huangfq.daxian@xxxxxxxxx> --- drivers/atm/idt77252.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c index 47f3c4a..76e7736 100644 --- a/drivers/atm/idt77252.c +++ b/drivers/atm/idt77252.c @@ -3743,8 +3743,6 @@ static int __init idt77252_init(void) { struct sk_buff *skb; - printk("%s: at %p\n", __func__, idt77252_init); - if (sizeof(skb->cb) < sizeof(struct atm_skb_data) + sizeof(struct idt77252_skb_prv)) { printk(KERN_ERR "%s: skb->cb is too small (%lu < %lu)\n", -- 2.11.0
