Jann Horn ce8f9fb651 comedi: Flush partial mappings in error case ... If some remap_pfn_range() calls succeeded before one failed, we still have buffer pages mapped into the userspace page tables when we drop the buffer reference with comedi_buf_map_put(bm). The userspace mappings are only cleaned up later in the mmap error path. Fix it by explicitly flushing all mappings in our VMA on the error path. See commit 79a61cc3fc ("mm: avoid leaving partial pfn mappings around in error case"). Cc: stable@vger.kernel.org Fixes: ed9eccbe89 ("Staging: add comedi core") Signed-off-by: Jann Horn <jannh@google.com> Link: https://lore.kernel.org/r/20241017-comedi-tlb-v3-1-16b82f9372ce@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-11-05 14:01:07 +01:00
..
drivers	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
kcomedilib	comedi: Move the main COMEDI headers	2021-11-26 16:48:59 +01:00
comedi_buf.c	comedi: Move the main COMEDI headers	2021-11-26 16:48:59 +01:00
comedi_fops.c	comedi: Flush partial mappings in error case	2024-11-05 14:01:07 +01:00
comedi_internal.h	staging: comedi: move out of staging directory	2021-04-15 09:26:25 +02:00
comedi_pci.c	comedi: Move the main COMEDI headers	2021-11-26 16:48:59 +01:00
comedi_pcmcia.c	comedi: Move the main COMEDI headers	2021-11-26 16:48:59 +01:00
comedi_usb.c	comedi: Move the main COMEDI headers	2021-11-26 16:48:59 +01:00
drivers.c	comedi: comedi_8254: Replace comedi_8254_init() and comedi_8254_mm_init()	2023-10-05 13:34:04 +02:00
Kconfig	comedi: add HAS_IOPORT dependencies again	2023-10-05 13:34:05 +02:00
Makefile	staging: comedi: move out of staging directory	2021-04-15 09:26:25 +02:00
proc.c	comedi: Move the main COMEDI headers	2021-11-26 16:48:59 +01:00
range.c	comedi: Move the main COMEDI headers	2021-11-26 16:48:59 +01:00
TODO	staging: comedi: move out of staging directory	2021-04-15 09:26:25 +02:00