| Message ID | YmMF32RlCn2asAhc@casper.infradead.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [GIT,PULL] Rare page cache data corruption fix | expand |
On Fri, Apr 22, 2022 at 12:45 PM Matthew Wilcox <willy@infradead.org> wrote: > > Syzbot found a nasty race between large page splitting and page lookup. > Details in the commit log, but fortunately it has a reliable reproducer. The commit message does mention it ("I have not added a new test for this bug."), but I'll echo it anyway, since you say it can be reliably reproduced - getting that repro into the testsuite would be lovely. Linus
The pull request you sent on Fri, 22 Apr 2022 20:45:35 +0100:
> git://git.infradead.org/users/willy/xarray.git tags/xarray-5.18a
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/22f19f67404833c2282b7a8c2f4703d9aff8f748
Thank you!
On Fri, 22 Apr 2022 20:45:35 +0100 Matthew Wilcox <willy@infradead.org> wrote: > XArray: Two fixes for 5.18 > > - Fix the test suite build for kmem_cache_alloc_lru() > > - Fix a rare race between split and load This commit did not have a cc:stable. It has a Fixes:, but we've asked Greg not to backport patches which weren't explicitly cc:stable. If you think this should be backported I suggest you let Greg know.
Syzbot found a nasty race between large page splitting and page lookup. Details in the commit log, but fortunately it has a reliable reproducer. I thought it better to send this one to you straight away. The other commit fixes the test suite build, again. The following changes since commit 281b9d9a4b02229b602a14f7540206b0fbe4134f: Merge branch 'akpm' (patches from Andrew) (2022-04-22 10:10:43 -0700) are available in the Git repository at: git://git.infradead.org/users/willy/xarray.git tags/xarray-5.18a for you to fetch changes up to 63b1898fffcd8bd81905b95104ecc52b45a97e21: XArray: Disallow sibling entries of nodes (2022-04-22 15:35:40 -0400) ---------------------------------------------------------------- XArray: Two fixes for 5.18 - Fix the test suite build for kmem_cache_alloc_lru() - Fix a rare race between split and load ---------------------------------------------------------------- Matthew Wilcox (Oracle) (2): tools: Add kmem_cache_alloc_lru() XArray: Disallow sibling entries of nodes lib/xarray.c | 2 ++ tools/include/linux/slab.h | 8 +++++++- tools/testing/radix-tree/linux.c | 3 ++- 3 files changed, 11 insertions(+), 2 deletions(-)