From 361de091a4b97aa9081d304d742f80d486ab7125 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Tue, 8 May 2018 11:31:04 +0200 Subject: [PATCH] bcma: fix buffer size caused crash in bcma_core_mips_print_irq() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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: 758f7e06063a8 ("bcma: Use bcma_debug and not pr_cont in MIPS driver") Signed-off-by: Rafał Miłecki Cc: stable@vger.kernel.org # v4.15+ Signed-off-by: Kalle Valo --- drivers/bcma/driver_mips.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/bcma/driver_mips.c b/drivers/bcma/driver_mips.c index f040aba48d50..27e9686b6d3a 100644 --- a/drivers/bcma/driver_mips.c +++ b/drivers/bcma/driver_mips.c @@ -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++)