src/sys/vm, branch release/13.2.0 FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=release%2F13.2.0 2023-02-27T15:58:34Z vm_fault: Fix a race in vm_fault_soft_fast() 2023-02-27T15:58:34Z Mark Johnston markj@FreeBSD.org 2023-02-13T21:24:40Z urn:sha1:1780bdba96d381a9e473ab15ed92009893c822cb 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 d0991948182a1a149ee84f1b9c4d3e30450c8f0b) (cherry picked from commit 2f57ef2d3b8f776a28e195cd780a3bb4924570be) vm_object: Fix a kernel memory disclosure via the vm_object list sysctl 2023-01-23T13:50:31Z Mark Johnston markj@FreeBSD.org 2023-01-16T15:53:59Z urn:sha1:09d0e6b74aab5ba7c4314aef8274c56cfb839f27 Reported by: Chris J-D <chris@accessvector.net> MFC after: 1 week Sponsored by: The FreeBSD Foundation (cherry picked from commit b050ee6c97e7f5b6f1e3adec69775fa41afc948f) Handle ERELOOKUP from VOP_FSYNC() in several other places 2023-01-22T09:18:09Z Konstantin Belousov kib@FreeBSD.org 2023-01-18T21:09:10Z urn:sha1:7c09d62011bb084d3f7127edf2942bf6c9c3a6e2 (cherry picked from commit 6189672e600814fec4cc165d25ae050fb2f3a999) vm_object.c: minor style 2023-01-22T09:18:09Z Konstantin Belousov kib@FreeBSD.org 2023-01-19T18:32:16Z urn:sha1:40c26818931307321626db6968ef5e499864f747 (cherry picked from commit 70e1b11216c43e95118728f3684a1b8abc7034a1) vm_pager_allocate(): override resulting object type 2023-01-20T03:19:41Z Konstantin Belousov kib@FreeBSD.org 2022-12-04T00:37:28Z urn:sha1:c9e7aae6e6f90f700516f0a67fc5cf264daaf610 Tested by: pho (cherry picked from commit cd086696c2cb6d23bac3bc749836d36a9280ae98) vm_page_grab_valid(): clear *mp in case of pager denying page allocation 2023-01-20T03:19:35Z Konstantin Belousov kib@FreeBSD.org 2022-12-17T00:12:14Z urn:sha1:aaac643676bce2c80a78069e2c4a45deb50448dc Tested by: pho (cherry picked from commit 3249449190c2c71ecfc4fa5f518f94ff552df440) vm_pager: add method to veto page allocation 2023-01-20T03:19:29Z Konstantin Belousov kib@FreeBSD.org 2022-10-20T13:15:46Z urn:sha1:7d05e01b3e59c12f1b7a07dbf3b0ed11ac62ed13 Tested by: pho (cherry picked from commit ec201dddfbddd3a77dd3f3afc9b007d0e13e7ad1) vm_pager: add methods for page insertion and removal notifications 2023-01-20T03:19:22Z Konstantin Belousov kib@FreeBSD.org 2022-10-20T12:55:38Z urn:sha1:6219bd0436b88ba75ab062046fc3cd174ba03d08 Tested by: pho (cherry picked from commit d537d1f12e8829faccd395115193b03b578f1176) tmpfs: make vm_object point to the tmpfs node instead of vnode 2023-01-20T03:19:17Z Konstantin Belousov kib@FreeBSD.org 2022-10-20T12:00:21Z urn:sha1:e2d3dbe4ced68454afe0be0cb426bb2036c37454 Tested by: pho (cherry picked from commit d9dc64f1589360f2062ad92d63f69e13121e472a) Provide consistent prototype for swp_pager_meta_free() 2023-01-20T03:19:12Z Konstantin Belousov kib@FreeBSD.org 2022-12-09T15:21:16Z urn:sha1:d81d67edb1cb372fb2833ecda05f8f35ac815a03 Tested by: pho (cherry picked from commit 645510e62e34d9af4c2d57c7a6443a494511918d)