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-2023-11-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking fix from Ingo Molnar:
"Fix lockdep block chain corruption resulting in KASAN warnings"

* tag 'locking-urgent-2023-11-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
lockdep: Fix block chain corruption

Linus Torvalds 1d0dbc3d 4515866d

+2 -1
+2 -1
kernel/locking/lockdep.c
··· 3497 3497 size = chain_block_size(curr); 3498 3498 if (likely(size >= req)) { 3499 3499 del_chain_block(0, size, chain_block_next(curr)); 3500 - add_chain_block(curr + req, size - req); 3500 + if (size > req) 3501 + add_chain_block(curr + req, size - req); 3501 3502 return curr; 3502 3503 } 3503 3504 }