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linux/drivers/char/ipmi
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Corey Minyard 58e6e3d39c ipmi:si: Fix check for a misbehaving BMC 
commit cae66f1a1d upstream.

There is a race on checking the state in the sender, it needs to be
checked under a lock.  But you also need a check to avoid issues with
a misbehaving BMC for run to completion mode.  So leave the check at
the beginning for run to completion, and add a check under the lock
to avoid the race.

Reported-by: Rafael J. Wysocki <rafael@kernel.org>
Fixes: bc3a9d2177 ("ipmi:si: Gracefully handle if the BMC is non-functional")
Cc: stable@vger.kernel.org # 4.18
Signed-off-by: Corey Minyard <corey@minyard.net>
Reviewed-by: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2026-03-19 16:08:33 +01:00
..
bt-bmc.c treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
ipmb_dev_int.c char:ipmi: Fix a not-used variable on a non-ACPI system 2024-12-22 14:57:47 -06:00
ipmi_bt_sm.c ipmi: Clean up some printks 2020-09-15 09:57:45 -05:00
ipmi_devintf.c ipmi: make ipmi_destroy_user() return void 2025-01-02 21:11:52 -06:00
ipmi_dmi.c ipmi_si: Rework some include files 2019-08-02 07:25:03 -05:00
ipmi_dmi.h ipmi_si: Rework some include files 2019-08-02 07:25:03 -05:00
ipmi_ipmb.c ipmi: ipmb: initialise event handler read bytes 2026-03-04 07:20:44 -05:00
ipmi_kcs_sm.c Revert "ipmi: fix msg stack when IPMI is disconnected" 2025-09-08 10:08:25 -05:00
ipmi_msghandler.c ipmi: Fix use-after-free and list corruption on sender error 2026-03-12 07:09:45 -04:00
ipmi_plat_data.c ipmi: Handle device properties with software node API 2021-03-10 19:00:02 -06:00
ipmi_plat_data.h ipmi: Add the i2c-addr property for SSIF interfaces 2019-04-24 09:02:53 -05:00
ipmi_powernv.c ipmi: Allow an SMI sender to return an error 2025-09-08 10:21:41 -05:00
ipmi_poweroff.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
ipmi_si.h ipmi: Add Loongson-2K BMC support 2025-09-16 10:15:54 -05:00
ipmi_si_hardcode.c ipmi: Use regspacings passed as a module parameter 2023-12-19 06:32:27 -06:00
ipmi_si_hotmod.c ipmi_si: Join string literals back 2021-04-02 12:53:42 -05:00
ipmi_si_intf.c ipmi:si: Fix check for a misbehaving BMC 2026-03-19 16:08:33 +01:00
ipmi_si_ls2k.c ipmi: Add Loongson-2K BMC support 2025-09-16 10:15:54 -05:00
ipmi_si_mem_io.c ipmi_si: Rework some include files 2019-08-02 07:25:03 -05:00
ipmi_si_parisc.c ipmi:si: Move SI type information into an info structure 2025-05-07 17:25:47 -05:00
ipmi_si_pci.c ipmi:si: Move SI type information into an info structure 2025-05-07 17:25:47 -05:00
ipmi_si_platform.c ipmi:si: Move SI type information into an info structure 2025-05-07 17:25:47 -05:00
ipmi_si_port_io.c ipmi_si: Rework some include files 2019-08-02 07:25:03 -05:00
ipmi_si_sm.h ipmi_si: Rework some include files 2019-08-02 07:25:03 -05:00
ipmi_smic_sm.c ipmi: Clean up some printks 2020-09-15 09:57:45 -05:00
ipmi_ssif.c ipmi: Allow an SMI sender to return an error 2025-09-08 10:21:41 -05:00
ipmi_watchdog.c ipmi: Fix strcpy source and destination the same 2025-06-13 19:06:26 -05:00
Kconfig ipmi: Add Loongson-2K BMC support 2025-09-16 10:15:54 -05:00
kcs_bmc.c ipmi: fix potential deadlock on &kcs_bmc->lock 2023-07-04 09:22:45 -05:00
kcs_bmc.h ipmi: kcs_bmc: Allow clients to control KCS IRQ state 2021-06-21 19:50:28 -05:00
kcs_bmc_aspeed.c treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
kcs_bmc_cdev_ipmi.c ipmi: Add __init/__exit annotations to module init/exit funcs 2022-09-22 10:55:46 -05:00
kcs_bmc_client.h ipmi: kcs_bmc: Allow clients to control KCS IRQ state 2021-06-21 19:50:28 -05:00
kcs_bmc_device.h ipmi: kcs_bmc: Allow clients to control KCS IRQ state 2021-06-21 19:50:28 -05:00
kcs_bmc_npcm7xx.c Get rid of 'remove_new' relic from platform driver struct 2024-12-01 15:12:43 -08:00
kcs_bmc_serio.c ipmi: Add __init/__exit annotations to module init/exit funcs 2022-09-22 10:55:46 -05:00
Makefile ipmi: Add Loongson-2K BMC support 2025-09-16 10:15:54 -05:00
ssif_bmc.c treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00