This is a note to let you know that I've just added the patch titled
kernel/irq/irqdomain.c: fix memory leak with using debugfs_lookup()
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
kernel-irq-irqdomain.c-fix-memory-leak-with-using-debugfs_lookup.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From d83d7ed260283560700d4034a80baad46620481b Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Date: Thu, 2 Feb 2023 16:15:54 +0100
Subject: kernel/irq/irqdomain.c: fix memory leak with using debugfs_lookup()
From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
commit d83d7ed260283560700d4034a80baad46620481b upstream.
When calling debugfs_lookup() the result must have dput() called on it,
otherwise the memory will leak over time. To make things simpler, just
call debugfs_lookup_and_remove() instead which handles all of the logic
at once.
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxx>
Reviewed-by: Marc Zyngier <maz@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230202151554.2310273-1-gregkh@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
kernel/irq/irqdomain.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -1915,7 +1915,7 @@ static void debugfs_add_domain_dir(struc
static void debugfs_remove_domain_dir(struct irq_domain *d)
{
- debugfs_remove(debugfs_lookup(d->name, domain_dir));
+ debugfs_lookup_and_remove(d->name, domain_dir);
}
void __init irq_domain_debugfs_init(struct dentry *root)
Patches currently in stable-queue which might be from gregkh@xxxxxxxxxxxxxxxxxxx are
queue-6.1/iio-imu-fxos8700-fix-map-label-of-channel-type-to-magn-sensor.patch
queue-6.1/riscv-disable-generation-of-unwind-tables.patch
queue-6.1/iio-imx8qxp-adc-fix-irq-flood-when-call-imx8qxp_adc_read_raw.patch
queue-6.1/iio-imu-fxos8700-fix-incomplete-accel-and-magn-channels-readback.patch
queue-6.1/hv_netvsc-fix-missed-pagebuf-entries-in-netvsc_dma_map-unmap.patch
queue-6.1/usb-gadget-f_uac2-fix-incorrect-increment-of-bnumendpoints.patch
queue-6.1/alsa-hda-realtek-fix-mute-micmute-leds-speaker-don-t-work-for-a-hp-platform.patch
queue-6.1/usb-dwc3-qcom-enable-vbus-override-when-in-otg-dr-mo.patch
queue-6.1/fbcon-check-font-dimension-limits.patch
queue-6.1/iio-imu-fxos8700-fix-failed-initialization-odr-mode-assignment.patch
queue-6.1/kernel-irq-irqdomain.c-fix-memory-leak-with-using-debugfs_lookup.patch
queue-6.1/can-isotp-split-tx-timer-into-transmission-and-timeout.patch
queue-6.1/iio-hid-fix-the-retval-in-gyro_3d_capture_sample.patch
queue-6.1/nvmem-qcom-spmi-sdam-fix-module-autoloading.patch
queue-6.1/vc_screen-move-load-of-struct-vc_data-pointer-in-vcs.patch
queue-6.1/watchdog-diag288_wdt-do-not-use-stack-buffers-for-hardware-data.patch
queue-6.1/nvmem-brcm_nvram-add-check-for-kzalloc.patch
queue-6.1/net-qrtr-free-memory-on-error-path-in-radix_tree_insert.patch
queue-6.1/iio-imu-fxos8700-remove-definition-fxos8700_ctrl_odr_min.patch
queue-6.1/iio-imu-fxos8700-fix-imu-data-bits-returned-to-user-space.patch
queue-6.1/iio-imu-fxos8700-fix-incorrect-odr-mode-readback.patch
queue-6.1/revert-mm-kmemleak-alloc-gray-object-for-reserved-region-with-direct-map.patch
queue-6.1/iio-adc-twl6030-enable-measurements-of-vusb-vbat-and-others.patch
queue-6.1/x86-debug-fix-stack-recursion-caused-by-wrongly-ordered-dr7-accesses.patch
queue-6.1/efi-accept-version-2-of-memory-attributes-table.patch
queue-6.1/usb-typec-ucsi-don-t-attempt-to-resume-the-ports-before-they-exist.patch
queue-6.1/can-isotp-handle-wait_event_interruptible-return-values.patch
queue-6.1/alsa-hda-realtek-add-acer-predator-ph315-54.patch
queue-6.1/asoc-codecs-wsa883x-correct-playback-min-max-rates.patch
queue-6.1/parisc-replace-hardcoded-value-with-priv_user-constant-in-ptrace.c.patch
queue-6.1/rtc-efi-enable-set-get-wakeup-services-as-optional.patch
queue-6.1/firewire-fix-memory-leak-for-payload-of-request-subaction-to-iec-61883-1-fcp-region.patch
queue-6.1/asoc-sof-keep-prepare-unprepare-widgets-in-sink-path.patch
queue-6.1/iio-light-cm32181-fix-pm-support-on-system-with-2-i2c-resources.patch
queue-6.1/mm-multi-gen-lru-fix-crash-during-cgroup-migration.patch
queue-6.1/mm-memcg-fix-null-pointer-in-mem_cgroup_track_foreign_dirty_slowpath.patch
queue-6.1/iio-adc-berlin2-adc-add-missing-of_node_put-in-error-path.patch
queue-6.1/iio-imu-fxos8700-fix-accel-measurement-range-selection.patch
queue-6.1/iio-adc-xilinx-ams-fix-devm_krealloc-return-value-check.patch
queue-6.1/asoc-sof-sof-audio-unprepare-when-swidget-use_count-0.patch
queue-6.1/mm-hugetlb-proc-check-for-hugetlb-shared-pmd-in-proc-pid-smaps.patch
queue-6.1/iio-hid-fix-the-retval-in-accel_3d_capture_sample.patch
queue-6.1/nvmem-sunxi_sid-always-use-32-bit-mmio-reads.patch
queue-6.1/iio-imu-fxos8700-fix-swapped-accel-and-magn-channels-readback.patch
queue-6.1/watchdog-diag288_wdt-fix-__diag288-inline-assembly.patch
queue-6.1/parisc-wire-up-ptrace_getregs-ptrace_setregs-for-compat-case.patch
queue-6.1/cgroup-cpuset-fix-wrong-check-in-update_parent_subparts_cpumask.patch
queue-6.1/parisc-fix-return-code-of-pdc_iodc_print.patch
queue-6.1/iio-imu-fxos8700-fix-magn-sensor-scale-and-unit.patch
queue-6.1/usb-gadget-f_fs-fix-unbalanced-spinlock-in-__ffs_ep0.patch
queue-6.1/arm-dts-imx7d-smegw01-fix-usb-host-over-current-polarity.patch
queue-6.1/usb-gadget-udc-do-not-clear-gadget-driver.bus.patch
queue-6.1/asoc-sof-sof-audio-skip-prepare-unprepare-if-swidget-is-null.patch
queue-6.1/hv-hv_balloon-fix-memory-leak-with-using-debugfs_lookup.patch
