openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

bcma: fix buffer size caused crash in bcma_core_mips_print_irq() 

Used buffer wasn't big enough to hold whole strings. Example output of
this function is:
[    0.180892] bcma: bus0: core 0x0800, irq: 2(S)* 3  4  5  6  D  I
[    0.180948] bcma: bus0: core 0x0812, irq: 2(S)  3* 4  5  6  D  I
[    0.180998] bcma: bus0: core 0x082d, irq: 2(S)  3  4* 5  6  D  I
[    0.181046] bcma: bus0: core 0x082c, irq: 2(S)  3  4  5  6  D  I*
which means we need to store up to 24 chars.

Fixes: 758f7e0606 ("bcma: Use bcma_debug and not pr_cont in MIPS driver")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Cc: stable@vger.kernel.org # v4.15+
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Rafał Miłecki 2018-05-08 11:31:04 +02:00 committed by Kalle Valo
parent a8d7aa17bb
commit 361de091a4
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/bcma/driver_mips.c
View File

@ -184,7 +184,7 @@ static void bcma_core_mips_print_irq(struct bcma_device *dev, unsigned int irq)
{
int i;
static const char *irq_name[] = {"2(S)", "3", "4", "5", "6", "D", "I"};
char interrupts[20];
char interrupts[25];
char *ints = interrupts;
for (i = 0; i < ARRAY_SIZE(irq_name); i++)