Messages in this thread | | | From | George Kennedy <> | Subject | [PATCH 0/2] Revert "block: add single bio async direct IO helper" to avoid UAF | Date | Tue, 7 Dec 2021 10:51:40 -0500 |
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git bisect shows that commit 54a88eb838d3 ("block: add single bio async direct IO helper") causes the following UAF: KASAN: use-after-free Write in io_submit_one
Tried to root-cause the issue, but need the patch submitter's help in coming up with a fix.
Needed to revert commit 1bb6b8102945 ("block: avoid extra iter advance with async iocb") in order to be able to revert 54a88eb838d37af930c9f19e1930a4fba6789cb5.
George Kennedy (2): Revert "block: avoid extra iter advance with async iocb" Revert "block: add single bio async direct IO helper"
block/bio.c | 2 +- block/fops.c | 96 ++--------------------------------------------------- include/linux/bio.h | 1 - 3 files changed, 4 insertions(+), 95 deletions(-)
-- 1.8.3.1
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