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In the Linux kernel, the following vulnerability has been resolved:
spi: fix use-after-free of the add_lock mutex
Commit 6098475d4cb4 ("spi: Fix deadlock when adding SPI controllers on SPI buses") introduced a per-controller mutex. But mutex_unlock() of said lock is called after the controller is already freed:
spi_unregister_controller(ctlr) -> put_device(&ctlr->dev) -> spi_controller_release(dev) -> mutex_unlock(&ctrl->add_lock)
Move the put_device() after the mutex_unlock().
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 30, 2024 | Apr 10, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Apr 10, 2024 |
| Suse | — | Upgrade kernel-debug-vdsoUpgrade kselftests-kmp-64kbUpgrade kernel-default-base-rebuildUpgrade kernel-rt_debug-develUpgrade kselftests-kmp-defaultUpgrade kernel-docs-htmlUpgrade kernel-rt-vdsoUpgrade dtb-broadcomUpgrade kernel-sourceUpgrade dtb-marvellUpgrade kernel-azureUpgrade dtb-qcomUpgrade dtb-sprdUpgrade kernel-source-vanillaUpgrade kernel-source-azureUpgrade ocfs2-kmp-64kbUpgrade kernel-debug-livepatch-develUpgrade kernel-kvmsmallUpgrade kernel-rtUpgrade kernel-rt-optionalUpgrade kernel-kvmsmall-vdsoUpgrade kernel-devel-azureUpgrade kernel-macrosUpgrade kernel-default-extraUpgrade kernel-rt-livepatch-develUpgrade cluster-md-kmp-defaultUpgrade gfs2-kmp-rtUpgrade kernel-syms-azureUpgrade dtb-rockchipUpgrade kernel-syms-rtUpgrade dtb-exynosUpgrade dlm-kmp-azureUpgrade kernel-azure-develUpgrade dlm-kmp-64kbUpgrade dtb-apmUpgrade kernel-rt_debug-vdsoUpgrade kernel-default-vdsoUpgrade kernel-source-rtUpgrade kselftests-kmp-azureUpgrade kernel-rt-extraUpgrade kernel-obs-qaUpgrade kernel-azure-livepatch-develUpgrade reiserfs-kmp-azureUpgrade dtb-lgUpgrade reiserfs-kmp-64kbUpgrade kernel-azure-vdsoUpgrade dtb-nvidiaUpgrade dtb-amlogicUpgrade kernel-kvmsmall-develUpgrade kernel-obs-buildUpgrade kernel-default-baseUpgrade kernel-64kb-optionalUpgrade kernel-develUpgrade kernel-zfcpdumpUpgrade kernel-64kbUpgrade kernel-default-livepatch-develUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-rt-livepatchUpgrade dtb-xilinxUpgrade gfs2-kmp-azureUpgrade reiserfs-kmp-defaultUpgrade kernel-defaultUpgrade kernel-azure-extraUpgrade dtb-armUpgrade dtb-appleUpgrade cluster-md-kmp-rtUpgrade ocfs2-kmp-azureUpgrade kernel-default-optionalUpgrade dtb-amazonUpgrade gfs2-kmp-64kbUpgrade reiserfs-kmp-rtUpgrade kernel-symsUpgrade dtb-socionextUpgrade dtb-hisiliconUpgrade kernel-default-livepatchUpgrade ocfs2-kmp-defaultUpgrade kernel-debug-develUpgrade kernel-64kb-develUpgrade kernel-debugUpgrade kernel-rt_debugUpgrade kselftests-kmp-rtUpgrade dtb-freescaleUpgrade dlm-kmp-defaultUpgrade kernel-rt_debug-livepatch-develUpgrade cluster-md-kmp-azureUpgrade gfs2-kmp-defaultUpgrade ocfs2-kmp-rtUpgrade kernel-rt-develUpgrade dtb-allwinnerUpgrade kernel-default-develUpgrade kernel-azure-optionalUpgrade kernel-64kb-livepatch-develUpgrade kernel-64kb-extraUpgrade dtb-mediatekUpgrade dtb-amdUpgrade cluster-md-kmp-64kbUpgrade kernel-docsUpgrade kernel-devel-rtUpgrade dtb-alteraUpgrade dtb-renesasUpgrade dlm-kmp-rtUpgrade dtb-cavium | Aug 9, 2024 | Apr 10, 2024 |
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