5.4.179-rc1 review

From: Greg Kroah-Hartman <[email protected]>

commit bd2db32e7c3e35bd4d9b8bbff689434a50893546 upstream.

It was reported that the mmc host structure could be accessed after it was freed in moxart_remove(), so fix this by saving the base register of the device and using it instead of the pointer dereference.

---
 drivers/mmc/host/moxart-mmc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -696,12 +696,12 @@ static int moxart_remove(struct platform
 		if (!IS_ERR(host->dma_chan_rx))
 			dma_release_channel(host->dma_chan_rx);
 		mmc_remove_host(mmc);
-		mmc_free_host(mmc);
 
 		writel(0, host->base + REG_INTERRUPT_MASK);
 		writel(0, host->base + REG_POWER_CONTROL);
 		writel(readl(host->base + REG_CLOCK_CONTROL) | CLK_OFF,
 		       host->base + REG_CLOCK_CONTROL);
+		mmc_free_host(mmc);
 	}
 	return 0;
 }

This is the start of the stable review cycle for the 5.4.179 release. There are 1 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.

Responses should be made by Fri, 11 Feb 2022 19:12:41 +0000. Anything received after that time might be too late.

The whole patch series can be found in one patch at:

	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.4.179-rc1.gz

or in the git tree and branch at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y
and the diffstat can be found below.

thanks,

greg k-h

-------------
Pseudo-Shortlog of commits:

Greg Kroah-Hartman <[email protected]>

    Linux 5.4.179-rc1

Greg Kroah-Hartman <[email protected]>
moxart: fix potential use-after-free on remove path

-------------

Diffstat:

 Makefile                      | 4 ++--
 drivers/mmc/host/moxart-mmc.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

Compiled and booted on my test system. No dmesg regressions.

thanks,
-- Shuah

On ARCH_BRCMSTB using 32-bit and 64-bit ARM kernels:

Florian

All tests passing for Tegra ...

Test results for stable-v5.4:

    10 builds:	10 pass, 0 fail
    26 boots:	26 pass, 0 fail
    59 tests:	59 pass, 0 fail

Linux version: 5.4.179-rc1-g3eacd9fd7c98
Boards tested: tegra124-jetson-tk1, tegra186-p2771-0000,

                tegra194-p2972-0000, tegra20-ventana,
                tegra210-p2371-2180, tegra210-p3450-0000,
                tegra30-cardhu-a04

Jon

Results from Linaro’s test farm.
No regressions on arm64, arm, x86_64, and i386.

## Build
* kernel: 5.4.179-rc1
* git: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc
* git branch: linux-5.4.y
* git commit: 3eacd9fd7c98dd0c2574ea8f3692776fd62b4557
* git describe: v5.4.177-47-g3eacd9fd7c98
* test details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-5.4.y/build/v5.4.177-47-g3eacd9fd7c98

## Test Regressions (compared to v5.4.177-45-g3836147e31ee) No test regressions found.

## Metric Regressions (compared to v5.4.177-45-g3836147e31ee) No metric regressions found.

## Test Fixes (compared to v5.4.177-45-g3836147e31ee) No test fixes found.

## Metric Fixes (compared to v5.4.177-45-g3836147e31ee) No metric fixes found.

## Test result summary
total: 70784, pass: 60720, fail: 227, skip: 9035, xfail: 802

## Build Summary
* arc: 10 total, 10 passed, 0 failed
* arm: 258 total, 258 passed, 0 failed
* arm64: 35 total, 30 passed, 5 failed
* i386: 19 total, 19 passed, 0 failed
* mips: 34 total, 34 passed, 0 failed
* parisc: 12 total, 12 passed, 0 failed
* powerpc: 52 total, 39 passed, 13 failed
* riscv: 24 total, 24 passed, 0 failed
* s390: 12 total, 12 passed, 0 failed
* sh: 24 total, 24 passed, 0 failed
* sparc: 12 total, 12 passed, 0 failed
* x86_64: 36 total, 36 passed, 0 failed

## Test suites summary
* fwts
* igt-gpu-tools
* kselftest-android
* kselftest-breakpoints
* kselftest-capabilities
* kselftest-cgroup
* kselftest-clone3
* kselftest-core
* kselftest-cpu-hotplug
* kselftest-cpufreq
* kselftest-drivers
* kselftest-efivarfs
* kselftest-filesystems
* kselftest-firmware
* kselftest-fpu
* kselftest-futex
* kselftest-gpio
* kselftest-intel_pstate
* kselftest-ipc
* kselftest-ir
* kselftest-kcmp
* kselftest-kvm
* kselftest-lib
* kselftest-livepatch
* kselftest-membarrier
* kselftest-openat2
* kselftest-pid_namespace
* kselftest-pidfd
* kselftest-proc
* kselftest-pstore
* kselftest-ptrace
* kselftest-rseq
* kselftest-rtc
* kselftest-seccomp
* kselftest-sigaltstack
* kselftest-size
* kselftest-splice
* kselftest-static_keys
* kselftest-sync
* kselftest-sysctl
* kselftest-timens
* kselftest-timers
* kselftest-tmpfs
* kselftest-tpm2
* kselftest-user
* kselftest-vm
* kselftest-x86
* kselftest-zram
* kvm-unit-tests
* libgpiod
* libhugetlbfs
* linux-log-parser
* ltp-cap_bounds-tests
* ltp-commands-tests
* ltp-containers-tests
* ltp-controllers-tests
* ltp-cpuhotplug-tests
* ltp-crypto-tests
* ltp-cve-tests
* ltp-dio-tests
* ltp-fcntl-locktests-tests
* ltp-filecaps-tests
* ltp-fs-tests
* ltp-fs_bind-tests
* ltp-fs_perms_simple-tests
* ltp-fsx-tests
* ltp-hugetlb-tests
* ltp-io-tests
* ltp-ipc-tests
* ltp-math-tests
* ltp-mm-tests
* ltp-nptl-tests
* ltp-open-posix-tests
* ltp-pty-tests
* ltp-sched-tests
* ltp-securebits-tests
* ltp-syscalls-tests
* ltp-tracing-tests
* network-basic-tests
* packetdrill
* perf
* rcutorture
* ssuite
* v4l2-compliance

--
Linaro LKFT
https://lkft.linaro.org

Hi Greg,

Build test:
mips (gcc version 11.2.1 20220121): 65 configs -> no new failure arm (gcc version 11.2.1 20220121): 107 configs -> no new failure arm64 (gcc version 11.2.1 20220121): 2 configs -> no failure x86_64 (gcc version 11.2.1 20220121): 4 configs -> no failure

Boot test:
x86_64: Booted on my test laptop. No regression.
x86_64: Booted on qemu. No regression. [1]

[1]. https://openqa.qa.codethink.co.uk/tests/733

--
Regards
Sudip

Compiled and booted 5.4.179-rc1 on my x86_64 test system successfully without errors or regressions.

Thanks,
Slade

Build results:

	total: 159 pass: 159 fail: 0
Qemu test results:
	total: 449 pass: 449 fail: 0

Guenter