On Fri, Aug 30, 2024 at 10:29:55AM +0200, hsimeliere.opensource@witekio.com wrote:
From: "Matthew Wilcox (Oracle)" willy@infradead.org
commit af73483f4e8b6f5c68c9aa63257bdd929a9c194a upstream.
The IDA usually detects double-frees, but that detection failed to consider the case when there are no nearby IDs allocated and so we have a NULL bitmap rather than simply having a clear bit. Add some tests to the test-suite to be sure we don't inadvertently reintroduce this problem. Unfortunately they're quite noisy so include a message to disregard the warnings.
Reported-by: Zhenghan Wang wzhmmmmm@gmail.com Signed-off-by: Matthew Wilcox (Oracle) willy@infradead.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Hugo SIMELIERE hsimeliere.opensource@witekio.com
lib/idr.c | 2 +- lib/test_ida.c | 40 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+), 1 deletion(-)
Now queued up, thanks.
greg k-h