tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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Merge tag 'locking_urgent_for_v5.17_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking fix from Borislav Petkov:
"Fix a NULL ptr dereference when dumping lockdep chains through
/proc/lockdep_chains"

* tag 'locking_urgent_for_v5.17_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
lockdep: Correct lock_classes index mapping

Linus Torvalds 3324e6e8 22217739

+2 -2
+2 -2
kernel/locking/lockdep.c
··· 3462 3462 u16 chain_hlock = chain_hlocks[chain->base + i]; 3463 3463 unsigned int class_idx = chain_hlock_class_idx(chain_hlock); 3464 3464 3465 - return lock_classes + class_idx - 1; 3465 + return lock_classes + class_idx; 3466 3466 } 3467 3467 3468 3468 /* ··· 3530 3530 hlock_id = chain_hlocks[chain->base + i]; 3531 3531 chain_key = print_chain_key_iteration(hlock_id, chain_key); 3532 3532 3533 - print_lock_name(lock_classes + chain_hlock_class_idx(hlock_id) - 1); 3533 + print_lock_name(lock_classes + chain_hlock_class_idx(hlock_id)); 3534 3534 printk("\n"); 3535 3535 } 3536 3536 }