From b95e0e792822bad8fc9eb33ea3a90005e29e75e9 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Tue, 21 Apr 2026 07:52:44 +0200 Subject: [PATCH] s390/mm: Fix phys_to_folio() usage in do_secure_storage_access() In case of a Secure-Storage-Access exception the effective aka virtual address which caused the exception is contained within the TEID. do_secure_storage_access() incorrectly uses phys_to_folio() instead of virt_to_folio() to translate the virtual address to the corresponding folio. Fix this by using virt_to_folio() instead of phys_to_folio(). Fixes: 084ea4d611a3 ("s390/mm: add (non)secure page access exceptions handlers") Reviewed-by: Christian Borntraeger Reviewed-by: Claudio Imbrenda Signed-off-by: Heiko Carstens Signed-off-by: Alexander Gordeev --- arch/s390/mm/fault.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index 191cc53caead..028aeb9c48d6 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -438,7 +438,7 @@ void do_secure_storage_access(struct pt_regs *regs) panic("Unexpected PGM 0x3d with TEID bit 61=0"); } if (is_kernel_fault(regs)) { - folio = phys_to_folio(addr); + folio = virt_to_folio((void *)addr); if (unlikely(!folio_try_get(folio))) return; rc = uv_convert_from_secure(folio_to_phys(folio));