CVE-2024-38780 Information

Description

In the Linux kernel the following vulnerability has been resolved:

dma-buf/sw-sync: don’t enable IRQ from sync_print_obj()

Since commit a6aa8fca4d79 (\dma-buf/sw-sync: Reduce irqsave/irqrestore from known context) by error replaced spin_unlock_irqrestore() with spin_unlock_irq() for both sync_debugfs_show() and sync_print_obj() despite sync_print_obj() is called from sync_debugfs_show() lockdep complains inconsistent lock state warning.

Use plain spin_lockunlock() for sync_print_obj() for sync_debugfs_show() is already using spin_lockunlock_irq().

Reference

https://git.kernel.org/stable/c/1ff116f68560a25656933d5a18e7619cb6773d8a https://git.kernel.org/stable/c/165b25e3ee9333f7b04f8db43895beacb51582ed https://git.kernel.org/stable/c/ae6fc4e6a3322f6d1c8ff59150d8469487a73dd8 https://git.kernel.org/stable/c/9d75fab2c14a25553a1664586ed122c316bd1878 https://git.kernel.org/stable/c/242b30466879e6defa521573c27e12018276c33a https://git.kernel.org/stable/c/a4ee78244445ab73af22bfc5a5fc543963b25aef https://git.kernel.org/stable/c/8a283cdfc8beeb14024387a925247b563d614e1e https://git.kernel.org/stable/c/b794918961516f667b0c745aebdfebbb8a98df39