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linux/drivers/bus
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Ma Ke 4cf9235faf bus: fsl-mc: Fix potential double device reference in fsl_mc_get_endpoint() 
commit bddbe13d36 upstream.

The fsl_mc_get_endpoint() function may call fsl_mc_device_lookup()
twice, which would increment the device's reference count twice if
both lookups find a device. This could lead to a reference count leak.

Found by code review.

Cc: stable@vger.kernel.org
Fixes: 1ac210d128 ("bus: fsl-mc: add the fsl_mc_get_endpoint function")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Fixes: 8567494ceb ("bus: fsl-mc: rescan devices if endpoint not found")
Link: https://patch.msgid.link/20250717022309.3339976-1-make24@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-08-15 12:04:48 +02:00
..
fsl-mc bus: fsl-mc: Fix potential double device reference in fsl_mc_get_endpoint() 2025-08-15 12:04:48 +02:00
mhi bus: mhi: host: Fix conflict between power_up and SYSERR 2025-06-27 11:07:28 +01:00
arm-cci.c bus: arm-cci: remove unnecessary unreachable() 2018-05-14 01:22:49 -07:00
arm-integrator-lm.c bus: integrator-lm: fix OF node leak in probe() 2024-10-17 15:21:20 +02:00
brcmstb_gisb.c bus: brcmstb_gisb: Remove the suppress_bind_attrs attribute of the driver 2022-04-26 09:12:45 -07:00
bt1-apb.c bus: bt1-apb: Don't print error on -EPROBE_DEFER 2022-06-14 12:21:44 +02:00
bt1-axi.c bus: bt1-axi: Don't print error on -EPROBE_DEFER 2022-06-14 12:21:44 +02:00
da8xx-mstpri.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
hisi_lpc.c bus: hisi_lpc: Use platform_device_register_full() 2022-09-08 02:27:29 +00:00
imx-weim.c treewide: Fix probing of devices in DT overlays 2023-09-13 09:43:05 +02:00
intel-ixp4xx-eb.c bus: ixp4xx: fix IXP4XX_EXP_T1_MASK 2023-07-23 13:49:43 +02:00
Kconfig bus: tegra-aconnect: Update dependency to ARCH_TEGRA 2024-03-26 18:20:36 -04:00
Makefile bus: add driver for initializing the SSC bus on (some) qcom SoCs 2022-04-19 13:03:57 -05:00
mips_cdmm.c mips: cdmm: Fix refcount leak in mips_cdmm_phys_base 2022-03-14 15:01:51 +01:00
moxtet.c bus: moxtet: Add spi device table 2024-02-23 09:12:48 +01:00
mvebu-mbus.c bus: mvebu-mbus: use DEFINE_SHOW_ATTRIBUTE to simplify mvebu_{sdram/devs}_debug 2022-09-24 14:59:26 +02:00
omap-ocp2scp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
omap_l3_noc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_320.RULE 2022-06-10 14:51:36 +02:00
omap_l3_noc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_320.RULE 2022-06-10 14:51:36 +02:00
omap_l3_smx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
omap_l3_smx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
qcom-ebi2.c bus: qcom-ebi2: Fix incorrect documentation for '{slow,fast}_cfg' 2021-05-26 21:19:23 -05:00
qcom-ssc-block-bus.c bus: add driver for initializing the SSC bus on (some) qcom SoCs 2022-04-19 13:03:57 -05:00
simple-pm-bus.c drivers: bus: simple-pm-bus: Add support for probing simple bus only devices 2021-10-05 17:47:15 +02:00
sun50i-de2.c bus: sun50i-de2: Adjust printing error message 2021-10-13 14:48:48 +02:00
sunxi-rsb.c bus: sunxi-rsb: Fix error handling in sunxi_rsb_init() 2023-02-09 11:27:59 +01:00
tegra-aconnect.c bus: tegra-aconnect: add system sleep callbacks 2019-03-28 17:26:14 +01:00
tegra-gmi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2) 2022-06-10 14:51:35 +02:00
ti-pwmss.c bus/ti-pwmss: move TI PWMSS driver from PWM to bus subsystem 2019-10-17 21:17:42 +01:00
ti-sysc.c Revert "bus: ti-sysc: Probe for l4_wkup and l4_cfg interconnect devices first" 2025-06-27 11:07:36 +01:00
ts-nbus.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2) 2022-06-10 14:51:35 +02:00
uniphier-system-bus.c bus: uniphier-system-bus: use devm_platform_ioremap_resource() 2019-09-05 17:57:18 +02:00
vexpress-config.c bus: vexpress-config: Support building as module 2020-05-13 12:42:46 -05:00