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135b9e8d1c
linux/drivers/remoteproc
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Sibi Sankar 135b9e8d1c remoteproc: qcom_q6v5_mss: Validate modem blob firmware size before load 
The following mem abort is observed when one of the modem blob firmware
size exceeds the allocated mpss region. Fix this by restricting the copy
size to segment size using request_firmware_into_buf before load.

Err Logs:
Unable to handle kernel paging request at virtual address
Mem abort info:
...
Call trace:
  __memcpy+0x110/0x180
  rproc_start+0xd0/0x190
  rproc_boot+0x404/0x550
  state_store+0x54/0xf8
  dev_attr_store+0x44/0x60
  sysfs_kf_write+0x58/0x80
  kernfs_fop_write+0x140/0x230
  vfs_write+0xc4/0x208
  ksys_write+0x74/0xf8
...

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Fixes: 051fb70fd4 ("remoteproc: qcom: Driver for the self-authenticating Hexagon v5")
Cc: stable@vger.kernel.org
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200722201047.12975-3-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-07-27 23:21:19 -07:00
..
da8xx_remoteproc.c remoteproc: Remove dev_err() usage after platform_get_irq() 2019-08-26 21:59:58 -07:00
imx_rproc.c remoteproc: Use size_t type for len in da_to_va 2020-03-25 22:29:38 -07:00
ingenic_rproc.c remoteproc: ingenic: Move clock handling to prepare/unprepare callbacks 2020-07-01 16:05:18 -07:00
Kconfig remoteproc: qcom: Update PIL relocation info on load 2020-07-01 22:10:19 -07:00
keystone_remoteproc.c remoteproc: Use size_t type for len in da_to_va 2020-03-25 22:29:38 -07:00
Makefile remoteproc: Move coredump functionality to a new file 2020-07-21 14:00:49 -07:00
mtk_common.h remoteproc: mtk_scp: use dma_addr_t for DMA API 2020-04-16 15:53:15 -07:00
mtk_scp_ipi.c rpmsg: add rpmsg support for mt8183 SCP. 2020-01-20 10:29:56 -08:00
mtk_scp.c remoteproc updates for v5.8 2020-06-08 13:01:08 -07:00
omap_remoteproc.c remoteproc/omap: Fix set_load call in omap_rproc_request_timer 2020-04-03 10:47:21 -07:00
omap_remoteproc.h remoteproc/omap: Switch to SPDX license identifiers 2020-03-25 22:29:51 -07:00
qcom_common.c remoteproc: qcom: Add missing slab.h 2020-07-13 11:54:27 -07:00
qcom_common.h remoteproc: qcom: Add per subsystem SSR notification 2020-07-08 21:45:03 -07:00
qcom_pil_info.c remoteproc: qcom: pil-info: Fix shift overflow 2020-07-16 21:30:35 -07:00
qcom_pil_info.h remoteproc: qcom: Introduce helper to store pil info in IMEM 2020-07-01 22:10:18 -07:00
qcom_q6v5_adsp.c remoteproc: qcom: Update PIL relocation info on load 2020-07-01 22:10:19 -07:00
qcom_q6v5_ipa_notify.c remoteproc: add IPA notification to q6v5 driver 2020-03-08 22:07:09 -07:00
qcom_q6v5_mss.c remoteproc: qcom_q6v5_mss: Validate modem blob firmware size before load 2020-07-27 23:21:19 -07:00
qcom_q6v5_pas.c remoteproc: qcom: Update PIL relocation info on load 2020-07-01 22:10:19 -07:00
qcom_q6v5_wcss.c remoteproc: qcom: Update PIL relocation info on load 2020-07-01 22:10:19 -07:00
qcom_q6v5.c remoteproc: qcom: q6v5: Add common panic handler 2020-03-25 22:29:45 -07:00
qcom_q6v5.h remoteproc: qcom: q6v5: Add common panic handler 2020-03-25 22:29:45 -07:00
qcom_sysmon.c remoteproc: qcom_sysmon: Solve function header bitrot issues 2020-07-15 12:18:20 -07:00
qcom_wcnss_iris.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
qcom_wcnss.c remoteproc: qcom: Update PIL relocation info on load 2020-07-01 22:10:19 -07:00
qcom_wcnss.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
remoteproc_core.c remoteproc: Move coredump functionality to a new file 2020-07-21 14:00:49 -07:00
remoteproc_coredump.c remoteproc: Add inline coredump functionality 2020-07-21 14:03:57 -07:00
remoteproc_debugfs.c remoteproc: Add coredump debugfs entry 2020-07-21 14:04:12 -07:00
remoteproc_elf_helpers.h remoteproc: Add elf helpers to access elf64 and elf32 fields 2020-03-25 22:29:39 -07:00
remoteproc_elf_loader.c remoteproc: remove rproc_elf32_sanity_check 2020-04-22 21:57:26 -07:00
remoteproc_internal.h remoteproc: Move coredump functionality to a new file 2020-07-21 14:00:49 -07:00
remoteproc_sysfs.c remoteproc: Properly handle firmware name when attaching 2020-07-16 23:06:15 -07:00
remoteproc_virtio.c remoteproc: Fall back to using parent memory pool if no dedicated available 2020-05-12 16:08:00 -07:00
st_remoteproc.c remoteproc: remove rproc_elf32_sanity_check 2020-04-22 21:57:26 -07:00
st_slim_rproc.c remoteproc: remove rproc_elf32_sanity_check 2020-04-22 21:57:26 -07:00
stm32_rproc.c remoteproc: stm32: Update M4 state in stm32_rproc_stop() 2020-07-17 17:35:03 -07:00
wkup_m3_rproc.c remoteproc: Use size_t type for len in da_to_va 2020-03-25 22:29:38 -07:00