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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 6.1 14/26] devres: Use kmalloc_size_roundup() to match ksize() usage
Date: Fri, 23 Dec 2022 20:29:18 -0500	[thread overview]
Message-ID: <20221224012930.392358-14-sashal@kernel.org> (raw)
In-Reply-To: <20221224012930.392358-1-sashal@kernel.org>

From: Kees Cook <keescook@chromium.org>

[ Upstream commit 6fcd7e702d3d91cc2c3194acffd7d67b2c10b81f ]

Round up allocations with kmalloc_size_roundup() so that devres's use
of ksize() is always accurate and no special handling of the memory is
needed by KASAN, UBSAN_BOUNDS, nor FORTIFY_SOURCE.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20221018090406.never.856-kees@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/base/devres.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 4ab2b50ee38f..c0e100074aa3 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -101,6 +101,9 @@ static bool check_dr_size(size_t size, size_t *tot_size)
 					size, tot_size)))
 		return false;
 
+	/* Actually allocate the full kmalloc bucket size. */
+	*tot_size = kmalloc_size_roundup(*tot_size);
+
 	return true;
 }
 
-- 
2.35.1


  parent reply	other threads:[~2022-12-24  1:31 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-24  1:29 [PATCH AUTOSEL 6.1 01/26] gpiolib: of: add a quirk for legacy names in Mediatek mt2701-cs42448 Sasha Levin
2022-12-24  1:29 ` Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 02/26] gpiolib: of: consolidate simple renames into a single quirk Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 03/26] gpiolib: of: tighten selection of gpio renaming quirks Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 04/26] gpiolib: of: add quirk for locating reset lines with legacy bindings Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 05/26] gpiolib: of: add a quirk for reset line for Marvell NFC controller Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 06/26] gpiolib: of: add a quirk for reset line for Cirrus CS42L56 codec Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 07/26] gpiolib: of: add a quirk for legacy names in MOXA ART RTC Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 08/26] kset: fix memory leak when kset_register() returns error Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 09/26] USB: core: Change configuration warnings to notices Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 10/26] usb: core: stop USB enumeration if too many retries Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 11/26] usb: gadget: aspeed: fix buffer overflow Sasha Levin
2022-12-24  1:29   ` Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 12/26] usb: gadget: u_ether: Do not make UDC parent of the net device Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 13/26] usb: gadget: f_ecm: Always set current gadget in ecm_bind() Sasha Levin
2022-12-24  1:29 ` Sasha Levin [this message]
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 15/26] chardev: Fix potential memory leak when cdev_add() failed Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 16/26] usb/usbip: Fix v_recv_cmd_submit() to use PIPE_BULK define Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 17/26] char: xillybus: Prevent use-after-free due to race condition Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 18/26] habanalabs: zero ts registration buff when allocated Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 19/26] char: xillybus: Fix trivial bug with mutex Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 20/26] iio: filter: admv8818: close potential out-of-bounds read in __admv8818_read_[h|l]pf_freq() Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 21/26] xhci: disable U3 suspended ports in S4 hibernate poweroff_late stage Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 22/26] ACPICA: Fix operand resolution Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 23/26] ksmbd: Fix resource leak in smb2_lock() Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 24/26] writeback: Add asserts for adding freed inode to lists Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 25/26] exfat: fix overflow in sector and cluster conversion Sasha Levin
2022-12-24  1:29 ` [PATCH AUTOSEL 6.1 26/26] fbdev: smscufx: fix error handling code in ufx_usb_probe Sasha Levin
2022-12-24  1:29   ` Sasha Levin

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