Mark Johnston 1780bdba96 vm_fault: Fix a race in vm_fault_soft_fast() ... When vm_fault_soft_fast() creates a mapping, it release the VM map lock before unbusying the top-level object. Without the map lock, however, nothing prevents the VM object from being deallocated while still busy. Fix the problem by unbusying the object before releasing the VM map lock. If vm_fault_soft_fast() fails to create a mapping, the VM map lock is not released, so those cases don't need to change. Approved by: re (cperciva) Reported by: syzkaller Reviewed by: kib (previous version) Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D38527 (cherry picked from commit d099194818) (cherry picked from commit 2f57ef2d3b8f776a28e195cd780a3bb4924570be)		2023-02-27 10:58:34 -05:00
..
_vm_phys.h
_vm_radix.h
default_pager.c	vm_object_kvme_type(): reimplement by embedding kvme_type into pagerops	2021-05-22 12:38:30 +03:00
device_pager.c	vm_object_kvme_type(): reimplement by embedding kvme_type into pagerops	2021-05-22 12:38:30 +03:00
memguard.c	memguard(9): Fix two typos in source code comments	2022-04-09 08:08:00 +02:00
memguard.h
phys_pager.c	vm_object_kvme_type(): reimplement by embedding kvme_type into pagerops	2021-05-22 12:38:30 +03:00
pmap.h
redzone.c	redzone: Raise a compile error if KASAN is configured	2021-11-01 10:07:31 -04:00
redzone.h
sg_pager.c	vm_object_kvme_type(): reimplement by embedding kvme_type into pagerops	2021-05-22 12:38:30 +03:00
swap_pager.c	Provide consistent prototype for swp_pager_meta_free()	2023-01-20 05:19:12 +02:00
swap_pager.h	Make swap_pager_freespace() global	2023-01-20 05:19:07 +02:00
uma.h	uma: Add UMA_ZONE_UNMANAGED	2022-02-24 10:59:28 +01:00
uma_core.c	uma: Never pass cache zones to memguard	2022-10-25 20:35:31 -04:00
uma_dbg.c
uma_dbg.h
uma_int.h	Improve UMA cache reclamation.	2021-05-15 22:10:48 -04:00
vm.h	vm/vm.h: cleanup	2022-09-30 03:29:10 +03:00
vm_domainset.c
vm_domainset.h
vm_dumpset.h	Fix various places which cast a pointer to a vm_paddr_t or vice versa.	2022-11-11 10:18:53 -08:00
vm_extern.h	vm_addr_ok: add power2 invariant check	2022-07-12 11:26:12 -05:00
vm_fault.c	vm_fault: Fix a race in vm_fault_soft_fast()	2023-02-27 10:58:34 -05:00
vm_glue.c	Fix a common typo in syctl descriptions	2021-11-06 08:52:57 +01:00
vm_init.c	vm: Initialize the transient buffer mapping arena with M_WAITOK	2022-04-21 09:18:04 -04:00
vm_kern.c	Convert vm_page_alloc() callers to use vm_page_alloc_noobj().	2021-11-03 13:39:36 -04:00
vm_kern.h
vm_map.c	vm_map: Simplify a call to vm_object_allocate_anon()	2022-07-19 09:36:21 -04:00
vm_map.h	exec: Reimplement stack address randomization	2022-02-16 11:55:03 -05:00
vm_meter.c	vmmeter(): Fix detection of the named swap objects	2022-02-09 02:42:44 +02:00
vm_mmap.c	vm_mmap: Remove obsolete code and comments from vm_mmap()	2022-07-27 09:50:55 -04:00
vm_object.c	vm_object: Fix a kernel memory disclosure via the vm_object list sysctl	2023-01-23 08:50:31 -05:00
vm_object.h	tmpfs: make vm_object point to the tmpfs node instead of vnode	2023-01-20 05:19:17 +02:00
vm_page.c	vm_page_grab_valid(): clear *mp in case of pager denying page allocation	2023-01-20 05:19:35 +02:00
vm_page.h	Add vm_page_any_valid()	2022-10-26 03:43:43 +03:00
vm_pageout.c	vm: Fix racy checks for swap objects	2022-07-04 09:06:55 -04:00
vm_pageout.h
vm_pagequeue.h
vm_pager.c	vm_pager_allocate(): override resulting object type	2023-01-20 05:19:41 +02:00
vm_pager.h	vm_pager: add method to veto page allocation	2023-01-20 05:19:29 +02:00
vm_param.h
vm_phys.c	vm_phys: convert error back to warning	2022-07-12 11:26:05 -05:00
vm_phys.h	vm_phys: hide vm_phys_set_pool	2022-07-11 00:41:04 -05:00
vm_radix.c
vm_radix.h
vm_reserv.c	vm_reserv: #include vm_extern.h explicitly, for arm.	2022-07-12 11:26:06 -05:00
vm_reserv.h	vm: alloc pages from reserv before breaking it	2022-07-11 00:41:07 -05:00
vm_swapout.c	Make vmdaemon timeout configurable	2022-02-14 19:28:56 +00:00
vm_swapout_dummy.c
vm_unix.c
vnode_pager.c	vm_object_kvme_type(): reimplement by embedding kvme_type into pagerops	2021-05-22 12:38:30 +03:00
vnode_pager.h