On Sep 18, 2025 / 13:15, Mikulas Patocka wrote: [...] > Thanks for testing it. I fixed it, I folded the fix into the existing > patch. You can get it here: > > https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/log/?h=for-next
Mikulas, thank you for fixing it. I found that the blktests block/008 can reproduce the KASAN suaf in stable manner using dm-linear on null_blk. Using this reproducer, I confirmed that the fix avoids the KASAN suaf :)
