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iommu: fix potential use-after-free during probe
commit b54240ad494300ff0994c4539a531727874381f4 upstream. Kasan has reported the following use after free on dev->iommu. when a device probe fails and it is in process of freeing dev->iommu in dev_iommu_free function, a deferred_probe_work_func runs in parallel and tries to access dev->iommu->fwspec in of_iommu_configure path thus causing use after free. BUG: KASAN: use-after-free in of_iommu_configure+0xb4/0x4a4 Read of size […]
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acpi_video_flags flags
[text] it allows mode of video boot to be set during run time. [/text] SHELL SESSION [bash] $pwd /proc/sys/kernel $sudo cat ac acct acpi_video_flags $sudo cat acpi_video_flags 0 $ [/bash] LINKS https://www.kernel.org/doc/Documentation/power/video.txt https://www.kernel.org/doc/Documentation/sysctl/kernel.txt
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prayer against depression – by saint ignatius of loyola
O Christ Jesus, when all is darkness and we feel our weakness and helplessness, give us the sense of Your presence, Your love, and Your strength. Help us to have perfect trust in Your protecting love and strengthening power, so that nothing may frighten or worry us, for, living close to You, we shall see […]
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Colossians 3:23-24
23 Whatever you do, do from the heart, as for the Lord and not for others, 24 knowing that you will receive from the Lord the due payment of the inheritance; be slaves of the Lord Christ.
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1 PETER 4:8
8 Above all, let your love for one another be intense, because love covers a multitude of sins.
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HEBREW 5:8-9
8 Son though he was, he learned obedience from what he suffered; 9 and when he was made perfect, he became the source of eternal salvation for all who obey him,
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Fundamental related of a bash builtin command named “if”
ABOUT if Conditionals have many forms. The most basic form is: if expression then statement where ‘statement’ is only executed if ‘expression’ evaluates to true. ’21’ evaluates to true.xs TYPICAL SHELL EXPOSURE [bash] $if true; then echo "works" ; fi works $if false; then echo "works" ; fi $ [/bash] LINK https://stackoverflow.com/questions/16034749/if-elif-else-statement-issues-in-bash http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO-6.html
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