[ Upstream commit 195aba96b854dd664768f382cd1db375d8181f88 ]
The TPM SPI transfer mechanism uses MAX_SPI_FRAMESIZE for computing the
maximum transfer length and the size of the transfer buffer. As such, it
does not account for the 4 bytes of header that prepends the SPI data
frame. This can result in out-of-bounds accesses and was confirmed with
KASAN.
Introduce SPI_HDRSIZE to account for the header and use to allocate the
transfer buffer.
Fixes: a86a42ac2b ("tpm_tis_spi: Add hardware wait polling")
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Tested-by: Carol Soto <csoto@nvidia.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit fbf740aeb86a4fe82ad158d26d711f2f3be79b3e ]
In register_device, the return value of ida_simple_get is unchecked,
in witch ida_simple_get will use an invalid index value.
To address this issue, index should be checked after ida_simple_get. When
the index value is abnormal, a warning message should be printed, the port
should be dropped, and the value should be recorded.
Fixes: 9a69645dde ("ppdev: fix registering same device name")
Signed-off-by: Huai-Yuan Liu <qq810974084@gmail.com>
Link: https://lore.kernel.org/r/20240412083840.234085-1-qq810974084@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit d8407f71ebeaeb6f50bd89791837873e44609708 ]
ida_alloc() and ida_free() should be preferred to the deprecated
ida_simple_get() and ida_simple_remove().
This is less verbose.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/ba9da12fdd5cdb2c28180b7160af5042447d803f.1702962092.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: fbf740aeb86a ("ppdev: Add an error check in register_device")
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit e871abcda3b67d0820b4182ebe93435624e9c6a4 upstream.
The entropy accounting changes a static key when the RNG has
initialized, since it only ever initializes once. Static key changes,
however, cannot be made from atomic context, so depending on where the
last creditable entropy comes from, the static key change might need to
be deferred to a worker.
Previously the code used the execute_in_process_context() helper
function, which accounts for whether or not the caller is
in_interrupt(). However, that doesn't account for the case where the
caller is actually in process context but is holding a spinlock.
This turned out to be the case with input_handle_event() in
drivers/input/input.c contributing entropy:
[<ffffffd613025ba0>] die+0xa8/0x2fc
[<ffffffd613027428>] bug_handler+0x44/0xec
[<ffffffd613016964>] brk_handler+0x90/0x144
[<ffffffd613041e58>] do_debug_exception+0xa0/0x148
[<ffffffd61400c208>] el1_dbg+0x60/0x7c
[<ffffffd61400c000>] el1h_64_sync_handler+0x38/0x90
[<ffffffd613011294>] el1h_64_sync+0x64/0x6c
[<ffffffd613102d88>] __might_resched+0x1fc/0x2e8
[<ffffffd613102b54>] __might_sleep+0x44/0x7c
[<ffffffd6130b6eac>] cpus_read_lock+0x1c/0xec
[<ffffffd6132c2820>] static_key_enable+0x14/0x38
[<ffffffd61400ac08>] crng_set_ready+0x14/0x28
[<ffffffd6130df4dc>] execute_in_process_context+0xb8/0xf8
[<ffffffd61400ab30>] _credit_init_bits+0x118/0x1dc
[<ffffffd6138580c8>] add_timer_randomness+0x264/0x270
[<ffffffd613857e54>] add_input_randomness+0x38/0x48
[<ffffffd613a80f94>] input_handle_event+0x2b8/0x490
[<ffffffd613a81310>] input_event+0x6c/0x98
According to Guoyong, it's not really possible to refactor the various
drivers to never hold a spinlock there. And in_atomic() isn't reliable.
So, rather than trying to be too fancy, just punt the change in the
static key to a workqueue always. There's basically no drawback of doing
this, as the code already needed to account for the static key not
changing immediately, and given that it's just an optimization, there's
not exactly a hurry to change the static key right away, so deferal is
fine.
Reported-by: Guoyong Wang <guoyong.wang@mediatek.com>
Cc: stable@vger.kernel.org
Fixes: f5bda35fba ("random: use static branch for crng_ready()")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit b7ab4bbd0188f3985b821fa09456b11105a8dedf ]
If interrupts are not activated the work struct 'free_irq_work' is not
initialized. This results in a warning splat at module shutdown.
Fix this by always initializing the work regardless of whether interrupts
are activated or not.
cc: stable@vger.kernel.org
Fixes: 481c2d1462 ("tpm,tpm_tis: Disable interrupts after 1000 unhandled IRQs")
Reported-by: Jarkko Sakkinen <jarkko@kernel.org>
Closes: https://lore.kernel.org/all/CX32RFOMJUQ0.3R4YCL9MDCB96@kernel.org/
Signed-off-by: Lino Sanfilippo <l.sanfilippo@kunbus.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 2d37b3649c412b3bcecfea932cb677f7a5775b15 ]
Current dev_err_probe will return 0 instead of proper error code if
driver failed to get irq number. Fix the return err code.
Signed-off-by: Jia Jie Ho <jiajie.ho@starfivetech.com>
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Closes: https://lore.kernel.org/r/202311160649.3GhKCfhd-lkp@intel.com/
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit 78aafb3884f6bc6636efcc1760c891c8500b9922 upstream.
There is a dead-lock in the hwrng device read path. This triggers
when the user reads from /dev/hwrng into memory also mmap-ed from
/dev/hwrng. The resulting page fault triggers a recursive read
which then dead-locks.
Fix this by using a stack buffer when calling copy_to_user.
Reported-by: Edward Adam Davis <eadavis@qq.com>
Reported-by: syzbot+c52ab18308964d248092@syzkaller.appspotmail.com
Fixes: 9996508b33 ("hwrng: core - Replace u32 in driver API with byte array")
Cc: <stable@vger.kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 464bd8ec2f06707f3773676a1bd2c64832a3c805 ]
When the membase and pci_dev pointer were moved to a new struct in priv,
the actual membase users were left untouched, and they started reading
out arbitrary memory behind the struct instead of registers. This
unfortunately turned the RNG into a constant number generator, depending
on the content of what was at that offset.
To fix this, update geode_rng_data_{read,present}() to also get the
membase via amd_geode_priv, and properly read from the right addresses
again.
Fixes: 9f6ec8dc57 ("hwrng: geode - Fix PCI device refcount leak")
Reported-by: Timur I. Davletshin <timur.davletshin@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217882
Tested-by: Timur I. Davletshin <timur.davletshin@gmail.com>
Suggested-by: Jo-Philipp Wich <jo@mein.io>
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit b58a36008bfa1aadf55f516bcbfae40c779eb54b ]
The last RCU stall fix caused a massive throughput regression of the
hwrng on Raspberry Pi 0 - 3. hwrng_msleep doesn't sleep precisely enough
and usleep_range doesn't allow scheduling. So try to restore the
best possible throughput by introducing hwrng_yield which interruptable
sleeps for one jiffy.
Some performance measurements on Raspberry Pi 3B+ (arm64/defconfig):
sudo dd if=/dev/hwrng of=/dev/null count=1 bs=10000
cpu_relax ~138025 Bytes / sec
hwrng_msleep(1000) ~13 Bytes / sec
hwrng_yield ~2510 Bytes / sec
Fixes: 96cb9d0554 ("hwrng: bcm2835 - use hwrng_msleep() instead of cpu_relax()")
Link: https://lore.kernel.org/linux-arm-kernel/bc97ece5-44a3-4c4e-77da-2db3eb66b128@gmx.net/
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This pull request contains a critical fix for my previous pull request.
BR, Jarkko
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Merge tag 'tpmdd-v6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull tpm fix from Jarkko Sakkinen.
* tag 'tpmdd-v6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
tpm: Fix typo in tpmrm class definition
* fix reference to exported symbols for parisc64 [Masahiro Yamada]
* Block-TLB (BTLB) support on 32-bit CPUs
* sparse and build-warning fixes
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Merge tag 'parisc-for-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc architecture fixes from Helge Deller:
- fix reference to exported symbols for parisc64 [Masahiro Yamada]
- Block-TLB (BTLB) support on 32-bit CPUs
- sparse and build-warning fixes
* tag 'parisc-for-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
linux/export: fix reference to exported functions for parisc64
parisc: BTLB: Initialize BTLB tables at CPU startup
parisc: firmware: Simplify calling non-PA20 functions
parisc: BTLB: _edata symbol has to be page aligned for BTLB support
parisc: BTLB: Add BTLB insert and purge firmware function wrappers
parisc: BTLB: Clear possibly existing BTLB entries
parisc: Prepare for Block-TLB support on 32-bit kernel
parisc: shmparam.h: Document aliasing requirements of PA-RISC
parisc: irq: Make irq_stack_union static to avoid sparse warning
parisc: drivers: Fix sparse warning
parisc: iosapic.c: Fix sparse warnings
parisc: ccio-dma: Fix sparse warnings
parisc: sba-iommu: Fix sparse warnigs
parisc: sba: Fix compile warning wrt list of SBA devices
parisc: sba_iommu: Fix build warning if procfs if disabled
Commit d2e8071bed ("tpm: make all 'class' structures const")
unfortunately had a typo for the name on tpmrm.
Fixes: d2e8071bed ("tpm: make all 'class' structures const")
Signed-off-by: Justin M. Forbes <jforbes@fedoraproject.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
The vendor check introduced by commit 554b841d47 ("tpm: Disable RNG for
all AMD fTPMs") doesn't work properly on a number of Intel fTPMs. On the
reported systems the TPM doesn't reply at bootup and returns back the
command code. This makes the TPM fail probe on Lenovo Legion Y540 laptop.
Since only Microsoft Pluton is the only known combination of AMD CPU and
fTPM from other vendor, disable hwrng otherwise. In order to make sysadmin
aware of this, print also info message to the klog.
Cc: stable@vger.kernel.org
Fixes: 554b841d47 ("tpm: Disable RNG for all AMD fTPMs")
Reported-by: Todd Brandt <todd.e.brandt@intel.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217804
Reported-by: Patrick Steinhardt <ps@pks.im>
Reported-by: Raymond Jay Golo <rjgolo@gmail.com>
Reported-by: Ronan Pigott <ronan@rjp.ie>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Some error paths don't call acpi_put_table() before returning.
Branch to the correct place instead of doing some direct return.
Fixes: 4d27328827 ("tpm_crb: Add support for CRB devices based on Pluton")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Matthew Garrett <mgarrett@aurora.tech>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Here is the big set of char/misc and other small driver subsystem
changes for 6.6-rc1.
Stuff all over the place here, lots of driver updates and changes and
new additions. Short summary is:
- new IIO drivers and updates
- Interconnect driver updates
- fpga driver updates and additions
- fsi driver updates
- mei driver updates
- coresight driver updates
- nvmem driver updates
- counter driver updates
- lots of smaller misc and char driver updates and additions
All of these have been in linux-next for a long time with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the big set of char/misc and other small driver subsystem
changes for 6.6-rc1.
Stuff all over the place here, lots of driver updates and changes and
new additions. Short summary is:
- new IIO drivers and updates
- Interconnect driver updates
- fpga driver updates and additions
- fsi driver updates
- mei driver updates
- coresight driver updates
- nvmem driver updates
- counter driver updates
- lots of smaller misc and char driver updates and additions
All of these have been in linux-next for a long time with no reported
problems"
* tag 'char-misc-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (267 commits)
nvmem: core: Notify when a new layout is registered
nvmem: core: Do not open-code existing functions
nvmem: core: Return NULL when no nvmem layout is found
nvmem: core: Create all cells before adding the nvmem device
nvmem: u-boot-env:: Replace zero-length array with DECLARE_FLEX_ARRAY() helper
nvmem: sec-qfprom: Add Qualcomm secure QFPROM support
dt-bindings: nvmem: sec-qfprom: Add bindings for secure qfprom
dt-bindings: nvmem: Add compatible for QCM2290
nvmem: Kconfig: Fix typo "drive" -> "driver"
nvmem: Explicitly include correct DT includes
nvmem: add new NXP QorIQ eFuse driver
dt-bindings: nvmem: Add t1023-sfp efuse support
dt-bindings: nvmem: qfprom: Add compatible for MSM8226
nvmem: uniphier: Use devm_platform_get_and_ioremap_resource()
nvmem: qfprom: do some cleanup
nvmem: stm32-romem: Use devm_platform_get_and_ioremap_resource()
nvmem: rockchip-efuse: Use devm_platform_get_and_ioremap_resource()
nvmem: meson-mx-efuse: Convert to devm_platform_ioremap_resource()
nvmem: lpc18xx_otp: Convert to devm_platform_ioremap_resource()
nvmem: brcm_nvram: Use devm_platform_get_and_ioremap_resource()
...
Here is a small set of driver core updates and additions for 6.6-rc1.
Included in here are:
- stable kernel documentation updates
- class structure const work from Ivan on various subsystems
- kernfs tweaks
- driver core tests!
- kobject sanity cleanups
- kobject structure reordering to save space
- driver core error code handling fixups
- other minor driver core cleanups
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is a small set of driver core updates and additions for 6.6-rc1.
Included in here are:
- stable kernel documentation updates
- class structure const work from Ivan on various subsystems
- kernfs tweaks
- driver core tests!
- kobject sanity cleanups
- kobject structure reordering to save space
- driver core error code handling fixups
- other minor driver core cleanups
All of these have been in linux-next for a while with no reported
problems"
* tag 'driver-core-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (32 commits)
driver core: Call in reversed order in device_platform_notify_remove()
driver core: Return proper error code when dev_set_name() fails
kobject: Remove redundant checks for whether ktype is NULL
kobject: Add sanity check for kset->kobj.ktype in kset_register()
drivers: base: test: Add missing MODULE_* macros to root device tests
drivers: base: test: Add missing MODULE_* macros for platform devices tests
drivers: base: Free devm resources when unregistering a device
drivers: base: Add basic devm tests for platform devices
drivers: base: Add basic devm tests for root devices
kernfs: fix missing kernfs_iattr_rwsem locking
docs: stable-kernel-rules: mention that regressions must be prevented
docs: stable-kernel-rules: fine-tune various details
docs: stable-kernel-rules: make the examples for option 1 a proper list
docs: stable-kernel-rules: move text around to improve flow
docs: stable-kernel-rules: improve structure by changing headlines
base/node: Remove duplicated include
kernfs: attach uuid for every kernfs and report it in fsid
kernfs: add stub helper for kernfs_generic_poll()
x86/resctrl: make pseudo_lock_class a static const structure
x86/MSR: make msr_class a static const structure
...
Here is the big set of tty and serial driver changes for 6.6-rc1.
Lots of cleanups in here this cycle, and some driver updates. Short
summary is:
- Jiri's continued work to make the tty code and apis be a bit more
sane with regards to modern kernel coding style and types
- cpm_uart driver updates
- n_gsm updates and fixes
- meson driver updates
- sc16is7xx driver updates
- 8250 driver updates for different hardware types
- qcom-geni driver fixes
- tegra serial driver change
- stm32 driver updates
- synclink_gt driver cleanups
- tty structure size reduction
All of these have been in linux-next this week with no reported issues.
The last bit of cleanups from Jiri and the tty structure size reduction
came in last week, a bit late but as they were just style changes and
size reductions, I figured they should get into this merge cycle so that
others can work on top of them with no merge conflicts.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
"Here is the big set of tty and serial driver changes for 6.6-rc1.
Lots of cleanups in here this cycle, and some driver updates. Short
summary is:
- Jiri's continued work to make the tty code and apis be a bit more
sane with regards to modern kernel coding style and types
- cpm_uart driver updates
- n_gsm updates and fixes
- meson driver updates
- sc16is7xx driver updates
- 8250 driver updates for different hardware types
- qcom-geni driver fixes
- tegra serial driver change
- stm32 driver updates
- synclink_gt driver cleanups
- tty structure size reduction
All of these have been in linux-next this week with no reported
issues. The last bit of cleanups from Jiri and the tty structure size
reduction came in last week, a bit late but as they were just style
changes and size reductions, I figured they should get into this merge
cycle so that others can work on top of them with no merge conflicts"
* tag 'tty-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (199 commits)
tty: shrink the size of struct tty_struct by 40 bytes
tty: n_tty: deduplicate copy code in n_tty_receive_buf_real_raw()
tty: n_tty: extract ECHO_OP processing to a separate function
tty: n_tty: unify counts to size_t
tty: n_tty: use u8 for chars and flags
tty: n_tty: simplify chars_in_buffer()
tty: n_tty: remove unsigned char casts from character constants
tty: n_tty: move newline handling to a separate function
tty: n_tty: move canon handling to a separate function
tty: n_tty: use MASK() for masking out size bits
tty: n_tty: make n_tty_data::num_overrun unsigned
tty: n_tty: use time_is_before_jiffies() in n_tty_receive_overrun()
tty: n_tty: use 'num' for writes' counts
tty: n_tty: use output character directly
tty: n_tty: make flow of n_tty_receive_buf_common() a bool
Revert "tty: serial: meson: Add a earlycon for the T7 SoC"
Documentation: devices.txt: Fix minors for ttyCPM*
Documentation: devices.txt: Remove ttySIOC*
Documentation: devices.txt: Remove ttyIOC*
serial: 8250_bcm7271: improve bcm7271 8250 port
...
Fix this makecheck warning:
drivers/parisc/sba_iommu.c:98:19: warning: symbol 'sba_list'
was not declared. Should it be static?
Signed-off-by: Helge Deller <deller@gmx.de>
Lots of small unconnected things, memory leaks on error, a possible
(though unlikely) deadlock, changes for updates to other things
that have changed. Nothing earth-shattering, but things that need
update.
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Merge tag 'for-linus-6.6-1' of https://github.com/cminyard/linux-ipmi
Pull IPMI updates from Corey Minyard:
"Minor fixes for IPMI
Lots of small unconnected things, memory leaks on error, a possible
(though unlikely) deadlock, changes for updates to other things that
have changed. Nothing earth-shattering, but things that need update"
* tag 'for-linus-6.6-1' of https://github.com/cminyard/linux-ipmi:
ipmi_si: fix -Wvoid-pointer-to-enum-cast warning
ipmi: fix potential deadlock on &kcs_bmc->lock
ipmi_si: fix a memleak in try_smi_init()
ipmi: Change request_module to request_module_nowait
ipmi: make ipmi_class a static const structure
ipmi:ssif: Fix a memory leak when scanning for an adapter
ipmi:ssif: Add check for kstrdup
dt-bindings: ipmi: aspeed,ast2400-kcs-bmc: drop unneeded quotes
ipmi: Switch i2c drivers back to use .probe()
ipmi_watchdog: Fix read syscall not responding to signals during sleep
These are the remaining few clean-ups of DT related includes which
didn't get applied to subsystem trees.
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Merge tag 'devicetree-header-cleanups-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree include cleanups from Rob Herring:
"These are the remaining few clean-ups of DT related includes which
didn't get applied to subsystem trees"
* tag 'devicetree-header-cleanups-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
ipmi: Explicitly include correct DT includes
tpm: Explicitly include correct DT includes
lib/genalloc: Explicitly include correct DT includes
parport: Explicitly include correct DT includes
sbus: Explicitly include correct DT includes
mux: Explicitly include correct DT includes
macintosh: Explicitly include correct DT includes
hte: Explicitly include correct DT includes
EDAC: Explicitly include correct DT includes
clocksource: Explicitly include correct DT includes
sparc: Explicitly include correct DT includes
riscv: Explicitly include correct DT includes
("refactor Kconfig to consolidate KEXEC and CRASH options").
- kernel.h slimming work from Andy Shevchenko ("kernel.h: Split out a
couple of macros to args.h").
- gdb feature work from Kuan-Ying Lee ("Add GDB memory helper
commands").
- vsprintf inclusion rationalization from Andy Shevchenko
("lib/vsprintf: Rework header inclusions").
- Switch the handling of kdump from a udev scheme to in-kernel handling,
by Eric DeVolder ("crash: Kernel handling of CPU and memory hot
un/plug").
- Many singleton patches to various parts of the tree
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Merge tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- An extensive rework of kexec and crash Kconfig from Eric DeVolder
("refactor Kconfig to consolidate KEXEC and CRASH options")
- kernel.h slimming work from Andy Shevchenko ("kernel.h: Split out a
couple of macros to args.h")
- gdb feature work from Kuan-Ying Lee ("Add GDB memory helper
commands")
- vsprintf inclusion rationalization from Andy Shevchenko
("lib/vsprintf: Rework header inclusions")
- Switch the handling of kdump from a udev scheme to in-kernel
handling, by Eric DeVolder ("crash: Kernel handling of CPU and memory
hot un/plug")
- Many singleton patches to various parts of the tree
* tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (81 commits)
document while_each_thread(), change first_tid() to use for_each_thread()
drivers/char/mem.c: shrink character device's devlist[] array
x86/crash: optimize CPU changes
crash: change crash_prepare_elf64_headers() to for_each_possible_cpu()
crash: hotplug support for kexec_load()
x86/crash: add x86 crash hotplug support
crash: memory and CPU hotplug sysfs attributes
kexec: exclude elfcorehdr from the segment digest
crash: add generic infrastructure for crash hotplug support
crash: move a few code bits to setup support of crash hotplug
kstrtox: consistently use _tolower()
kill do_each_thread()
nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse
scripts/bloat-o-meter: count weak symbol sizes
treewide: drop CONFIG_EMBEDDED
lockdep: fix static memory detection even more
lib/vsprintf: declare no_hash_pointers in sprintf.h
lib/vsprintf: split out sprintf() and friends
kernel/fork: stop playing lockless games for exe_file replacement
adfs: delete unused "union adfs_dirtail" definition
...
API:
- Move crypto engine callback from tfm ctx into algorithm object.
- Fix atomic sleep bug in crypto_destroy_instance.
- Move lib/mpi into lib/crypto.
Algorithms:
- Add chacha20 and poly1305 implementation for powerpc p10.
Drivers:
- Add AES skcipher and aead support to starfive.
- Add Dynamic Boost Control support to ccp.
- Add support for STM32P13 platform to stm32.
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Merge tag 'v6.6-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- Move crypto engine callback from tfm ctx into algorithm object
- Fix atomic sleep bug in crypto_destroy_instance
- Move lib/mpi into lib/crypto
Algorithms:
- Add chacha20 and poly1305 implementation for powerpc p10
Drivers:
- Add AES skcipher and aead support to starfive
- Add Dynamic Boost Control support to ccp
- Add support for STM32P13 platform to stm32"
* tag 'v6.6-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (149 commits)
Revert "dt-bindings: crypto: qcom,prng: Add SM8450"
crypto: chelsio - Remove unused declarations
X.509: if signature is unsupported skip validation
crypto: qat - fix crypto capability detection for 4xxx
crypto: drivers - Explicitly include correct DT includes
crypto: engine - Remove crypto_engine_ctx
crypto: zynqmp - Use new crypto_engine_op interface
crypto: virtio - Use new crypto_engine_op interface
crypto: stm32 - Use new crypto_engine_op interface
crypto: jh7110 - Use new crypto_engine_op interface
crypto: rk3288 - Use new crypto_engine_op interface
crypto: omap - Use new crypto_engine_op interface
crypto: keembay - Use new crypto_engine_op interface
crypto: sl3516 - Use new crypto_engine_op interface
crypto: caam - Use new crypto_engine_op interface
crypto: aspeed - Remove non-standard sha512 algorithms
crypto: aspeed - Use new crypto_engine_op interface
crypto: amlogic - Use new crypto_engine_op interface
crypto: sun8i-ss - Use new crypto_engine_op interface
crypto: sun8i-ce - Use new crypto_engine_op interface
...
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it was merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.
Link: https://lore.kernel.org/r/20230728134819.3224045-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it was merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.
Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
Link: https://lore.kernel.org/r/20230728134803.3223742-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Chips such as BCM7278 support system wide suspend/resume which will
cause the HWRNG block to lose its state and reset to its power on reset
register values. We need to cleanup and re-initialize the HWRNG for it
to be functional coming out of a system suspend cycle.
Fixes: c3577f6100 ("hwrng: iproc-rng200 - Add support for BCM7278")
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Remove duplicated include of linux/random.h. Resolves checkincludes
message. And adjust includes in alphabetical order.
Signed-off-by: GUO Zihua <guozihua@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Use the module_platform_driver macro to simplify the code, which is the
same as declaring with module_init() and module_exit().
Signed-off-by: Li Zetao <lizetao1@huawei.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Variable len is being accumulated but the value is never read. It is
redundant and can be removed. Cleans up clang scan build warning:
drivers/char/tpm/eventlog/tpm1.c:276:2: warning: Value stored to 'len' is never read [deadcode.DeadStores]
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Similar to the transmission of TPM responses, also the transmission of TPM
commands may become corrupted. Instead of aborting when detecting such
issues, try resending the command again.
Signed-off-by: Alexander Steffen <Alexander.Steffen@infineon.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
TPM responses may become damaged during transmission, for example due to
bit flips on the wire. Instead of aborting when detecting such issues, the
responseRetry functionality can be used to make the TPM retransmit its
response and receive it again without errors.
Signed-off-by: Alexander Steffen <Alexander.Steffen@infineon.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
The CRC functionality is initialized before tpm_tis_core, so it can be used
on all code paths within the module. Therefore, move the CRC check to the
generic send routine, that also contains all other checks for successful
command transmission, so that all those checks are in one place.
Also, this ensures that tpm_tis_ready is called when a CRC failure is
detected, to clear the invalid data from the TPM, which did not happen
previously.
Signed-off-by: Alexander Steffen <Alexander.Steffen@infineon.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
TPM devices may insert wait state on last clock cycle of ADDR phase.
For SPI controllers that support full-duplex transfers, this can be
detected using software by reading the MISO line. For SPI controllers
that only support half-duplex transfers, such as the Tegra QSPI, it is
not possible to detect the wait signal from software. The QSPI
controller in Tegra234 and Tegra241 implement hardware detection of the
wait signal which can be enabled in the controller for TPM devices.
The current TPM TIS driver only supports software detection of the wait
signal. To support SPI controllers that use hardware to detect the wait
signal, add the function tpm_tis_spi_transfer_half() and move the
existing code for software based detection into a function called
tpm_tis_spi_transfer_full(). SPI controllers that only support
half-duplex transfers will always call tpm_tis_spi_transfer_half()
because they cannot support software based detection. The bit
SPI_TPM_HW_FLOW is set to indicate to the SPI controller that hardware
detection is required and it is the responsibility of the SPI controller
driver to determine if this is supported or not.
For hardware flow control, CMD-ADDR-DATA messages are combined into a
single message where as for software flow control exiting method of
CMD-ADDR in a message and DATA in another is followed.
[jarkko: Fixed the function names to match the code change, and the tag
in the short summary.]
Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Since for MMIO driver using FIFO registers, also known as tpm_tis, the
default (and tbh recommended) behaviour is now the polling mode, the
"tristate" workaround is no longer for benefit.
If someone wants to explicitly enable IRQs for a TPM chip that should be
without question allowed. It could very well be a piece hardware in the
existing deny list because of e.g. firmware update or something similar.
While at it, document the module parameter, as this was not done in 2006
when it first appeared in the mainline.
Link: https://lore.kernel.org/linux-integrity/20201015214430.17937-1-jsnitsel@redhat.com/
Link: https://lore.kernel.org/all/1145393776.4829.19.camel@localhost.localdomain/
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
With W=1 we see the following warning:
| drivers/char/ipmi/ipmi_si_platform.c:272:15: error: \
| cast to smaller integer type 'enum si_type' from \
| 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast]
| 272 | io.si_type = (enum si_type) match->data;
| | ^~~~~~~~~~~~~~~~~~~~~~~~~~
This is due to the fact that the `si_type` enum members are int-width
and a cast from pointer-width down to int will cause truncation and
possible data loss. Although in this case `si_type` has only a few
enumerated fields and thus there is likely no data loss occurring.
Nonetheless, this patch is necessary to the goal of promoting this
warning out of W=1.
Link: https://github.com/ClangBuiltLinux/linux/issues/1902
Link: https://lore.kernel.org/llvm/202308081000.tTL1ElTr-lkp@intel.com/
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Justin Stitt <justinstitt@google.com>
Message-Id: <20230809-cbl-1902-v1-1-92def12d1dea@google.com>
Signed-off-by: Corey Minyard <minyard@acm.org>
The patch which made it to the kernel somehow changed the
match condition from
DMI_MATCH(DMI_PRODUCT_NAME, "UPX-TGL01")
to
DMI_MATCH(DMI_PRODUCT_VERSION, "UPX-TGL")
Revert back to the correct match condition to disable the
interrupt mode on the board.
Cc: stable@vger.kernel.org # v6.4+
Fixes: edb13d7bb0 ("tpm: tpm_tis: Disable interrupts *only* for AEON UPX-i11")
Link: https://lore.kernel.org/lkml/20230524085844.11580-1-peter.ujfalusi@linux.intel.com/
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
The same checks are repeated in three places to decide whether to use
hwrng. Consolidate these into a helper.
Also this fixes a case that one of them was missing a check in the
cleanup path.
Fixes: 554b841d47 ("tpm: Disable RNG for all AMD fTPMs")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The Lenovo ThinkStation P620 suffers from an irq storm issue like various
other Lenovo machines, so add an entry for it to tpm_tis_dmi_table and
force polling.
It is worth noting that 481c2d1462 (tpm,tpm_tis: Disable interrupts after
1000 unhandled IRQs) does not seem to fix the problem on this machine, but
setting 'tpm_tis.interrupts=0' on the kernel command line does.
[jarkko@kernel.org: truncated the commit ID in the description to 12
characters]
Cc: stable@vger.kernel.org # v6.4+
Fixes: e644b2f498 ("tpm, tpm_tis: Enable interrupt test")
Signed-off-by: Jonathan McDowell <noodles@meta.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
The TPM RNG functionality is not necessary for entropy when the CPU
already supports the RDRAND instruction. The TPM RNG functionality
was previously disabled on a subset of AMD fTPM series, but reports
continue to show problems on some systems causing stutter root caused
to TPM RNG functionality.
Expand disabling TPM RNG use for all AMD fTPMs whether they have versions
that claim to have fixed or not. To accomplish this, move the detection
into part of the TPM CRB registration and add a flag indicating that
the TPM should opt-out of registration to hwrng.
Cc: stable@vger.kernel.org # 6.1.y+
Fixes: b006c439d5 ("hwrng: core - start hwrng kthread also for untrusted sources")
Fixes: f1324bbc40 ("tpm: disable hwrng for fTPM on some AMD designs")
Reported-by: daniil.stas@posteo.net
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217719
Reported-by: bitlord0xff@gmail.com
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217212
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
TUXEDO InfinityBook S 15/17 Gen7 suffers from an IRQ problem on
tpm_tis like a few other laptops. Add an entry for the workaround.
Cc: stable@vger.kernel.org
Fixes: e644b2f498 ("tpm, tpm_tis: Enable interrupt test")
Link: https://bugzilla.suse.com/show_bug.cgi?id=1213645
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Now that the driver core allows for struct class to be in read-only
memory, making all 'class' structures to be declared at build time
placing them into read-only memory, instead of having to be dynamically
allocated at load time.
Cc: Peter Huewe <peterhuewe@gmx.de>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: linux-integrity@vger.kernel.org
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
Link: https://lore.kernel.org/r/20230620144642.584926-2-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 0788257aee ("hwrng: Explicitly include correct DT includes")
removed an implicit include of io.h. On most architectures, there's
still an implicit include of it, but not on s390. Enabling COMPILE_TEST
in commit 1ce1cd8208 ("hwrng: Enable COMPILE_TEST for more drivers")
exposed this.
Fixes: 0788257aee ("hwrng: Explicitly include correct DT includes")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202308042049.8R2tNRoo-lkp@intel.com/
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
On s390 systems (aka mainframes), it has classic channel devices for
networking and permanent storage that are currently even more common
than PCI devices. Hence it could have a fully functional s390 kernel
with CONFIG_PCI=n, then the relevant iomem mapping functions
[including ioremap(), devm_ioremap(), etc.] are not available.
Here let XILLYBUS_OF depend on HAS_IOMEM so that it won't be built
to cause below compiling error if PCI is unset:
------
ERROR: modpost: "devm_platform_ioremap_resource" [drivers/char/xillybus/xillybus_of.ko] undefined!
------
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202306211329.ticOJCSv-lkp@intel.com/
Signed-off-by: Baoquan He <bhe@redhat.com>
Acked-by: Eli Billauer <eli.billauer@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230707135852.24292-3-bhe@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There's quite a few hwrng drivers which are easily enabled for
COMPILE_TEST, so let's enable them.
The dependency on HW_RANDOM is redundant, so drop that while we're here.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Matthew R. Ochs