[PATCH v2 6.1 0/2] erofs: handle overlapped pclusters out of crafted images properly

[Alexey Panov]

Commit 9e2f9d34dd12 ("erofs: handle overlapped pclusters out of crafted
images properly") fixes CVE-2024-47736 [1] but brings another problem [2].
So commit 1a2180f6859c ("erofs: fix PSI memstall accounting") should be
backported too.

The backport follows linux 6.6.y conflict resolution changes of
struct folio -> struct page from 1bf7e414cac3 ("erofs: handle overlapped
pclusters out of crafted images properly").

---
v2: Corrected patch comment about a minor fix. I mistakenly assessed
the significance of the changes relative to the backport from 6.6.y.

[1] https://nvd.nist.gov/vuln/detail/CVE-2024-47736
[2] https://lore.kernel.org/all/CAKPOu+8tvSowiJADW2RuKyofL_CSkm_SuyZA7ME5vMLWmL6pqw@xxxxxxxxxxxxxx/

Gao Xiang (2):
  erofs: handle overlapped pclusters out of crafted images properly
  erofs: fix PSI memstall accounting

 fs/erofs/zdata.c | 66 +++++++++++++++++++++++++-----------------------
 1 file changed, 34 insertions(+), 32 deletions(-)

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2.39.5