From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH 13/19] include <linux/idr.h>: handle OOM gracefully inside idr_alloc_one
Date: Mon, 12 Jun 2023 15:02:34 +0200 [thread overview]
Message-ID: <20230612130239.1087599-14-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20230612130239.1087599-1-a.fatoum@pengutronix.de>
The result of allocating a struct idr is dereferenced unconditionally.
Return -ENOMEM in that case instead.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
include/linux/idr.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/linux/idr.h b/include/linux/idr.h
index 50c9e3f81ade..12494b1f01cb 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -54,6 +54,8 @@ static inline int idr_alloc_one(struct idr *head, void *ptr, int start)
return -EBUSY;
idr = malloc(sizeof(*idr));
+ if (!idr)
+ return -ENOMEM;
idr->id = start;
idr->ptr = ptr;
--
2.39.2
next prev parent reply other threads:[~2023-06-12 13:03 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-12 13:02 [PATCH 00/19] misc fixes building sandbox 64-bit allyesconfig Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 01/19] clk: always define clk_prepare_enable/disable Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 02/19] clk: define clk_get_parent stub Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 03/19] pci: disable building CONFIG_PCI when CONFIG_COMPILE_TEST Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 04/19] mci: tegra: fix base address constant to be hexadecimal Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 05/19] ata: ide-sff: fix warnings when compiling as 64-bit Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 06/19] video: bochs: remove dependency on PCI header in common part Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 07/19] commands: ubsan: hide pointer provenance used to trigger UB Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 08/19] test: self: printf: silence clang warnings Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 09/19] crypto: caam - fix pointer to u32 casts Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 10/19] crypto: imx-scc: fix u32 to pointer casts Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 11/19] mci: sdhci: dove: fix pointer to u32 casts Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 12/19] lib: make_directory: return -ENOMEM on allocation failure Ahmad Fatoum
2023-06-12 13:02 ` Ahmad Fatoum [this message]
2023-06-12 13:02 ` [PATCH 14/19] mci: tegra: use correct types for mmio and DMA address Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 15/19] mtd: spi-nor: cadence: fix types Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 16/19] video: simplefb-fixup: warn on framebuffers >= 4G Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 17/19] watchdog: imx28: use correct constant for computing timeout_max Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 18/19] firmware: mark firmware sections as having non-executable stack Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 19/19] phy: stm32: usb: depend on COMMON_CLK Ahmad Fatoum
2023-06-13 7:49 ` [PATCH 00/19] misc fixes building sandbox 64-bit allyesconfig Sascha Hauer
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