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linux/drivers/mmc/host
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Zheyu Ma 45c8ddd06c mmc: via-sdmmc: add a check against NULL pointer dereference 
Before referencing 'host->data', the driver needs to check whether it is
null pointer, otherwise it will cause a null pointer reference.

This log reveals it:

[   29.355199] BUG: kernel NULL pointer dereference, address:
0000000000000014
[   29.357323] #PF: supervisor write access in kernel mode
[   29.357706] #PF: error_code(0x0002) - not-present page
[   29.358088] PGD 0 P4D 0
[   29.358280] Oops: 0002 [#1] PREEMPT SMP PTI
[   29.358595] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 5.12.4-
g70e7f0549188-dirty #102
[   29.359164] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009),
BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
[   29.359978] RIP: 0010:via_sdc_isr+0x21f/0x410
[   29.360314] Code: ff ff e8 84 aa d0 fd 66 45 89 7e 28 66 41 f7 c4 00
10 75 56 e8 72 aa d0 fd 66 41 f7 c4 00 c0 74 10 e8 65 aa d0 fd 48 8b 43
18 <c7> 40 14 ac ff ff ff e8 55 aa d0 fd 48 89 df e8 ad fb ff ff e9 77
[   29.361661] RSP: 0018:ffffc90000118e98 EFLAGS: 00010046
[   29.362042] RAX: 0000000000000000 RBX: ffff888107d77880
RCX: 0000000000000000
[   29.362564] RDX: 0000000000000000 RSI: ffffffff835d20bb
RDI: 00000000ffffffff
[   29.363085] RBP: ffffc90000118ed8 R08: 0000000000000001
R09: 0000000000000001
[   29.363604] R10: 0000000000000000 R11: 0000000000000001
R12: 0000000000008600
[   29.364128] R13: ffff888107d779c8 R14: ffffc90009c00200
R15: 0000000000008000
[   29.364651] FS:  0000000000000000(0000) GS:ffff88817bc80000(0000)
knlGS:0000000000000000
[   29.365235] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.365655] CR2: 0000000000000014 CR3: 0000000005a2e000
CR4: 00000000000006e0
[   29.366170] DR0: 0000000000000000 DR1: 0000000000000000
DR2: 0000000000000000
[   29.366683] DR3: 0000000000000000 DR6: 00000000fffe0ff0
DR7: 0000000000000400
[   29.367197] Call Trace:
[   29.367381]  <IRQ>
[   29.367537]  __handle_irq_event_percpu+0x53/0x3e0
[   29.367916]  handle_irq_event_percpu+0x35/0x90
[   29.368247]  handle_irq_event+0x39/0x60
[   29.368632]  handle_fasteoi_irq+0xc2/0x1d0
[   29.368950]  __common_interrupt+0x7f/0x150
[   29.369254]  common_interrupt+0xb4/0xd0
[   29.369547]  </IRQ>
[   29.369708]  asm_common_interrupt+0x1e/0x40
[   29.370016] RIP: 0010:native_safe_halt+0x17/0x20
[   29.370360] Code: 07 0f 00 2d db 80 43 00 f4 5d c3 0f 1f 84 00 00 00
00 00 8b 05 c2 37 e5 01 55 48 89 e5 85 c0 7e 07 0f 00 2d bb 80 43 00 fb
f4 <5d> c3 cc cc cc cc cc cc cc 55 48 89 e5 e8 67 53 ff ff 8b 0d f9 91
[   29.371696] RSP: 0018:ffffc9000008fe90 EFLAGS: 00000246
[   29.372079] RAX: 0000000000000000 RBX: 0000000000000002
RCX: 0000000000000000
[   29.372595] RDX: 0000000000000000 RSI: ffffffff854f67a4
RDI: ffffffff85403406
[   29.373122] RBP: ffffc9000008fe90 R08: 0000000000000001
R09: 0000000000000001
[   29.373646] R10: 0000000000000000 R11: 0000000000000001
R12: ffffffff86009188
[   29.374160] R13: 0000000000000000 R14: 0000000000000000
R15: ffff888100258000
[   29.374690]  default_idle+0x9/0x10
[   29.374944]  arch_cpu_idle+0xa/0x10
[   29.375198]  default_idle_call+0x6e/0x250
[   29.375491]  do_idle+0x1f0/0x2d0
[   29.375740]  cpu_startup_entry+0x18/0x20
[   29.376034]  start_secondary+0x11f/0x160
[   29.376328]  secondary_startup_64_no_verify+0xb0/0xbb
[   29.376705] Modules linked in:
[   29.376939] Dumping ftrace buffer:
[   29.377187]    (ftrace buffer empty)
[   29.377460] CR2: 0000000000000014
[   29.377712] ---[ end trace 51a473dffb618c47 ]---
[   29.378056] RIP: 0010:via_sdc_isr+0x21f/0x410
[   29.378380] Code: ff ff e8 84 aa d0 fd 66 45 89 7e 28 66 41 f7 c4 00
10 75 56 e8 72 aa d0 fd 66 41 f7 c4 00 c0 74 10 e8 65 aa d0 fd 48 8b 43
18 <c7> 40 14 ac ff ff ff e8 55 aa d0 fd 48 89 df e8 ad fb ff ff e9 77
[   29.379714] RSP: 0018:ffffc90000118e98 EFLAGS: 00010046
[   29.380098] RAX: 0000000000000000 RBX: ffff888107d77880
RCX: 0000000000000000
[   29.380614] RDX: 0000000000000000 RSI: ffffffff835d20bb
RDI: 00000000ffffffff
[   29.381134] RBP: ffffc90000118ed8 R08: 0000000000000001
R09: 0000000000000001
[   29.381653] R10: 0000000000000000 R11: 0000000000000001
R12: 0000000000008600
[   29.382176] R13: ffff888107d779c8 R14: ffffc90009c00200
R15: 0000000000008000
[   29.382697] FS:  0000000000000000(0000) GS:ffff88817bc80000(0000)
knlGS:0000000000000000
[   29.383277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.383697] CR2: 0000000000000014 CR3: 0000000005a2e000
CR4: 00000000000006e0
[   29.384223] DR0: 0000000000000000 DR1: 0000000000000000
DR2: 0000000000000000
[   29.384736] DR3: 0000000000000000 DR6: 00000000fffe0ff0
DR7: 0000000000000400
[   29.385260] Kernel panic - not syncing: Fatal exception in interrupt
[   29.385882] Dumping ftrace buffer:
[   29.386135]    (ftrace buffer empty)
[   29.386401] Kernel Offset: disabled
[   29.386656] Rebooting in 1 seconds..

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Link: https://lore.kernel.org/r/1622727200-15808-1-git-send-email-zheyuma97@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2021-06-14 13:57:43 +02:00
..
alcor.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v5.4
2020-09-07 14:24:21 +02:00
atmel-mci.c
mmc: atmel-mci: Use new tasklet API
2021-02-08 13:00:31 +01:00
au1xmmc.c
mmc: au1xmmc: Use new tasklet API
2021-02-08 13:00:31 +01:00
bcm2835.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.14
2020-09-07 14:24:21 +02:00
cavium-octeon.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.14
2020-09-07 14:24:21 +02:00
cavium-thunderx.c
mmc: cavium: Add missed pci_release_regions
2019-12-18 12:55:11 +01:00
cavium.c
mmc: cavium: Use '"%s...", __func__' to print function name
2021-03-30 11:42:06 +02:00
cavium.h
…
cb710-mmc.c
mmc: cb710: Use new tasklet API
2021-02-15 10:43:23 +01:00
cb710-mmc.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cqhci-core.c
mmc: cqhci: introduce get_trans_desc_offset()
2021-06-14 13:57:40 +02:00
cqhci-crypto.c
mmc: cqhci: add cqhci_host_ops::program_key
2021-02-01 12:02:33 +01:00
cqhci-crypto.h
mmc: cqhci: add support for inline encryption
2021-02-01 12:02:33 +01:00
cqhci.h
mmc: cqhci: add cqhci_host_ops::program_key
2021-02-01 12:02:33 +01:00
davinci_mmc.c
mmc: davinci: remove unneeded semicolon
2020-11-16 11:59:28 +01:00
dw_mmc-bluefield.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.19
2020-09-07 14:24:21 +02:00
dw_mmc-exynos.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-09-07 14:20:17 +02:00
dw_mmc-exynos.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
dw_mmc-hi3798cv200.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.19
2020-09-07 14:24:21 +02:00
dw_mmc-k3.c
mmc: dw_mmc-k3: use the correct HiSilicon copyright
2021-03-31 14:47:53 +02:00
dw_mmc-pci.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
dw_mmc-pltfm.c
mmc: dw_mmc-pltfm: Remove unused <linux/clk.h>
2021-06-14 13:57:42 +02:00
dw_mmc-pltfm.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
dw_mmc-rockchip.c
mmc: dw_mmc-rockchip: Just set default sample value for legacy mode
2021-04-16 15:10:08 +02:00
dw_mmc.c
mmc: dw_mmc: simplify optional reset handling
2021-03-30 11:42:02 +02:00
dw_mmc.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
jz4740_mmc.c
mmc: jz4740: Remove redundant error printing in jz4740_mmc_probe()
2021-06-14 13:57:38 +02:00
Kconfig
mmc: renesas_sdhi: do hard reset if possible
2021-03-30 11:42:05 +02:00
Makefile
mmc: mmc_spi: Make of_mmc_spi.c resource provider agnostic
2021-04-23 09:29:49 +02:00
meson-gx-mmc.c
mmc: meson-gx: also check SD_IO_RW_EXTENDED for scatterlist size alignment
2021-05-10 14:29:39 +02:00
meson-mx-sdhc-clkc.c
mmc: meson-mx-sdhc: Don't use literal 0 to initialize structs
2020-05-28 11:22:15 +02:00
meson-mx-sdhc-mmc.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that are newer than 5.4
2020-09-07 14:24:21 +02:00
meson-mx-sdhc.h
mmc: host: meson-mx-sdhc: new driver for the Amlogic Meson SDHC host
2020-05-28 11:22:14 +02:00
meson-mx-sdio.c
mmc: meson-mx-sdio: replace spin_lock_irqsave by spin_lock in hard IRQ
2020-11-16 11:59:29 +01:00
mmc_hsq.c
mmc: host: Introduce the request_atomic() for the host
2020-05-28 11:20:59 +02:00
mmc_hsq.h
mmc: host: Introduce the request_atomic() for the host
2020-05-28 11:20:59 +02:00
mmc_spi.c
mmc: mmc_spi: Drop duplicate 'mmc_spi' in the debug messages
2021-06-14 13:57:42 +02:00
mmci_qcom_dml.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284
2019-06-05 17:36:37 +02:00
mmci_stm32_sdmmc.c
mmc: mmci_sdmmc: fix DMA API warning max segment size
2020-05-29 12:38:00 +02:00
mmci.c
mmc: mmci: Add MMC_CAP_NEED_RSP_BUSY for the stm32 variants
2021-03-09 10:00:52 +01:00
mmci.h
mmc: mmci_sdmmc: Implement signal voltage callbacks
2020-03-24 14:35:40 +01:00
moxart-mmc.c
mmc: moxart: Remove unused variable 'dma_time' and 'pio_time'
2021-04-12 08:54:06 +02:00
mtk-sd.c
mmc: mediatek: remove useless data parameter from msdc_data_xfer_next()
2021-06-14 13:57:40 +02:00
mvsdio.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-09-07 14:20:17 +02:00
mvsdio.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
mxcmmc.c
mmc: mxc: Convert the driver to DT-only
2020-11-24 15:18:19 +01:00
mxs-mmc.c
mmc: mxs-mmc: Fix a resource leak in an error handling path in 'mxs_mmc_probe()'
2021-02-01 11:54:41 +01:00
of_mmc_spi.c
mmc: mmc_spi: Imply container_of() to be no-op
2021-06-14 13:57:42 +02:00
omap_hsmmc.c
mmc: omap_hsmmc: Simplify bool comparison and conversion
2021-02-01 11:54:47 +01:00
omap.c
mmc: omap: Use new tasklet API
2021-02-08 13:00:31 +01:00
owl-mmc.c
mmc: owl-mmc: Remove unnecessary error log
2021-04-12 13:52:47 +02:00
pxamci.c
mmc: pxamci: Fix error return code in pxamci_probe
2020-11-24 12:35:34 +01:00
pxamci.h
…
renesas_sdhi_core.c
mmc: renesas_sdhi: Fix HS400 on R-Car M3-W+
2021-06-08 14:56:54 +02:00
renesas_sdhi_internal_dmac.c
mmc: renesas_sdhi: enable WAIT_WHILE_BUSY
2021-04-12 13:52:47 +02:00
renesas_sdhi_sys_dmac.c
mmc: renesas_sdhi: enable WAIT_WHILE_BUSY
2021-04-12 13:52:47 +02:00
renesas_sdhi.h
mmc: renesas_sdhi: do hard reset if possible
2021-03-30 11:42:05 +02:00
rtsx_pci_sdmmc.c
mmc: rtsx: add delay before power on
2021-02-01 11:54:45 +01:00
rtsx_usb_sdmmc.c
mmc: rtsx_usb_sdmmc: simplify the return expression of sd_change_phase()
2020-09-25 13:24:02 +02:00
s3cmci.c
mmc: s3cmci: move to use request_irq by IRQF_NO_AUTOEN flag
2021-06-14 13:57:34 +02:00
s3cmci.h
MMC core:
2019-07-11 18:11:21 -07:00
sdhci_am654.c
mmc: sdhci_am654: Use pm_runtime_resume_and_get() to replace open coding
2021-06-14 13:57:41 +02:00
sdhci_f_sdh30.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-09-07 14:20:17 +02:00
sdhci_f_sdh30.h
mmc: sdhci-milbeaut: add Milbeaut SD controller driver
2019-11-13 16:10:16 +01:00
sdhci-acpi.c
mmc: sdhci-acpi: Disable write protect detection on Toshiba Encore 2 WT8-B
2021-06-14 13:57:35 +02:00
sdhci-bcm-kona.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-09-07 14:20:17 +02:00
sdhci-brcmstb.c
mmc: sdhci-brcmstb: Remove CQE quirk
2021-03-30 12:42:44 +02:00
sdhci-cadence.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.14
2020-09-07 14:24:21 +02:00
sdhci-cns3xxx.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-09-07 14:20:17 +02:00
sdhci-dove.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-09-07 14:20:17 +02:00
sdhci-esdhc-imx.c
mmc: sdhci-esdhc-imx: remove unused is_imx6q_usdhc
2021-06-14 13:57:43 +02:00
sdhci-esdhc-mcf.c
mmc: sdhci: replace mmc->parent with mmc_dev() for consistency
2021-03-30 11:42:07 +02:00
sdhci-esdhc.h
mmc: sdhci-of-esdhc: make sure delay chain locked for HS400
2020-10-28 11:07:01 +01:00
sdhci-iproc.c
mmc: sdhci-iproc: Add ACPI bindings for the RPi
2021-02-01 11:54:48 +01:00
sdhci-milbeaut.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that are newer than 5.4
2020-09-07 14:24:21 +02:00
sdhci-msm.c
MMC core:
2021-04-28 15:56:51 -07:00
sdhci-of-arasan.c
mmc: sdhci-of-arasan: Use dev_err_probe() to avoid spamming logs
2021-02-01 11:54:46 +01:00
sdhci-of-aspeed-test.c
mmc: sdhci-of-aspeed: Fix kunit-related build error
2021-02-01 11:54:49 +01:00
sdhci-of-aspeed.c
mmc: sdhci-of-aspeed: Configure the SDHCIs as specified by the devicetree.
2021-06-14 13:57:42 +02:00
sdhci-of-at91.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-09-07 14:20:17 +02:00
sdhci-of-dwcmshc.c
mmc: sdhci-of-dwcmshc: set MMC_CAP_WAIT_WHILE_BUSY
2021-03-30 11:42:07 +02:00
sdhci-of-esdhc.c
mmc: core: Convert mmc_of_parse_voltage() to use device property API
2021-04-23 09:29:49 +02:00
sdhci-of-hlwd.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-09-07 14:20:17 +02:00
sdhci-of-sparx5.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that are newer than 5.4
2020-09-07 14:24:21 +02:00
sdhci-omap.c
mmc: sdhci-omap: Use pm_runtime_resume_and_get() to replace open coding
2021-06-14 13:57:41 +02:00
sdhci-pci-arasan.c
…
sdhci-pci-core.c
mmc: sdhci-pci: Fix initialization of some SD cards for Intel BYT-based controllers
2021-03-31 14:49:32 +02:00
sdhci-pci-data.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
sdhci-pci-dwc-mshc.c
mmc: sdhci-pci-dwc-mshc: synopsys dwc mshc support
2018-07-16 11:21:45 +02:00
sdhci-pci-gli.c
mmc: sdhci-pci-gli: Fine tune GL9763E L1 entry delay
2021-06-14 13:57:38 +02:00
sdhci-pci-o2micro.c
mmc: sdhci-pci-o2micro: Add missing checks in sdhci_pci_o2_probe
2021-03-30 11:42:00 +02:00
sdhci-pci.h
mmc: sdhci-pci: Add PCI IDs for Intel LKF
2021-03-30 11:42:07 +02:00
sdhci-pic32.c
mmc: sdhci-pic32: Make pic32_sdhci_probe_platform() void
2020-11-16 11:59:30 +01:00
sdhci-pltfm.c
mmc: Remove dev_err() usage after platform_get_irq()
2019-09-11 15:58:39 +02:00
sdhci-pltfm.h
mmc: sdhci-pltfm: Fix linking err for sdhci-brcmstb
2021-02-01 11:13:09 +01:00
sdhci-pxav2.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-09-07 14:20:17 +02:00
sdhci-pxav3.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-09-07 14:20:17 +02:00
sdhci-s3c.c
mmc: sdhci-s3c: constify uses of driver/match data
2021-04-15 14:00:15 +02:00
sdhci-spear.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-09-07 14:20:17 +02:00
sdhci-sprd.c
mmc: sdhci-sprd: use sdhci_sprd_writew
2021-06-14 13:57:43 +02:00
sdhci-st.c
mmc: sdhci-st: Remove unnecessary error log
2021-04-12 13:52:48 +02:00
sdhci-tegra.c
mmc: sdhci-tegra: Add required callbacks to set/clear CQE_EN bit
2021-04-12 13:52:29 +02:00
sdhci-xenon-phy.c
mmc: sdhci-xenon: switch to device_* API
2020-12-11 10:08:37 +01:00
sdhci-xenon.c
mmc: xenon: add AP807 compatible string
2021-02-01 11:54:45 +01:00
sdhci-xenon.h
mmc: sdhci-xenon: switch to device_* API
2020-12-11 10:08:37 +01:00
sdhci.c
mmc: sdhci: replace mmc->parent with mmc_dev() for consistency
2021-03-30 11:42:07 +02:00
sdhci.h
mmc: sdhci: Allow platform controlled voltage switching
2020-07-13 12:18:24 +02:00
sdricoh_cs.c
mmc: sdricoh_cs: Respect the cmd->busy_timeout from the mmc core
2020-05-28 11:22:14 +02:00
sh_mmcif.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-09-07 14:20:17 +02:00
sunxi-mmc.c
mmc: sunxi-mmc: Ensure host is suspended during system sleep
2021-02-01 11:54:45 +01:00
tifm_sd.c
mmc: tifm_sd: Use new tasklet API
2021-02-08 13:00:31 +01:00
tmio_mmc_core.c
mmc: tmio: always restore irq register
2021-04-15 13:59:02 +02:00
tmio_mmc.c
mmc: tmio: do not print real IOMEM pointer
2020-11-17 12:46:39 +01:00
tmio_mmc.h
mmc: renesas_sdhi: use custom mask for TMIO_MASK_ALL
2021-03-30 11:42:01 +02:00
toshsd.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
toshsd.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
uniphier-sd.c
mmc: uniphier-sd: Fix a resource leak in the remove function
2021-03-30 11:41:59 +02:00
usdhi6rol0.c
mmc: usdhi6rol0: fix error return code in usdhi6_probe()
2021-06-14 13:57:37 +02:00
ushc.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
via-sdmmc.c
mmc: via-sdmmc: add a check against NULL pointer dereference
2021-06-14 13:57:43 +02:00
vub300.c
mmc: vub3000: fix control-request direction
2021-06-14 13:57:41 +02:00
wbsd.c
mmc: wbsd: Use new tasklet API
2021-02-08 13:00:31 +01:00
wbsd.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
wmt-sdmmc.c
mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-09-07 14:20:17 +02:00