Rick Edgecombe 6466a0f6d2 uio_hv_generic: Don't free decrypted memory ... [ Upstream commit 3d788b2fbe ] In CoCo VMs it is possible for the untrusted host to cause set_memory_encrypted() or set_memory_decrypted() to fail such that an error is returned and the resulting memory is shared. Callers need to take care to handle these errors to avoid returning decrypted (shared) memory to the page allocator, which could lead to functional or security issues. The VMBus device UIO driver could free decrypted/shared pages if set_memory_decrypted() fails. Check the decrypted field in the gpadl to decide whether to free the memory. Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com> Signed-off-by: Michael Kelley <mhklinux@outlook.com> Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Link: https://lore.kernel.org/r/20240311161558.1310-5-mhklinux@outlook.com Signed-off-by: Wei Liu <wei.liu@kernel.org> Message-ID: <20240311161558.1310-5-mhklinux@outlook.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-05-17 12:02:17 +02:00
..
Kconfig	uio: Remove leading spaces in Kconfig	2021-05-21 14:52:37 +02:00
Makefile
uio.c	uio: Fix use-after-free in uio_open	2024-01-20 11:51:48 +01:00
uio_aec.c	uio: uio_aec: Use pci_iounmap instead of iounmap	2021-05-14 13:39:47 +02:00
uio_cif.c
uio_dfl.c	uio: dfl: add vendor-specific feature id	2023-05-31 19:00:37 +01:00
uio_dmem_genirq.c	uio: uio_dmem_genirq: Use non-atomic bit operations in irq config and handling	2022-11-10 18:54:29 +01:00
uio_fsl_elbc_gpcm.c	uio: uio_fsl_elbc_gpcm: Replace NO_IRQ by 0	2022-11-10 18:39:19 +01:00
uio_hv_generic.c	uio_hv_generic: Don't free decrypted memory	2024-05-17 12:02:17 +02:00
uio_mf624.c
uio_netx.c
uio_pci_generic.c	Merge 50f09a3dd5 ("Merge tag 'char-misc-5.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc") into char-misc-next	2021-05-21 09:48:31 +02:00
uio_pdrv_genirq.c
uio_pruss.c	uio: pruss: fix missing iounmap() in pruss_probe()	2023-08-22 13:41:55 +02:00
uio_sercos3.c